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This is Paul K's latest set of ld changes. A commit was necessary at this

Browse source 
late stage due to the fact that link.h was copyright Sun Microsystems.

This version of ld sync's us up with NetBSD's ld and supports compatablily
with NetBSD's -[zZ] flags (which we had reversed).  Compiling with this
new ld will give you RRS warnings for libraries which do not contain .type
infomation - these wsarnings are harmless and will go away as soon as you
recompile your libraries (cd /usr/src; make libraries).
This commit is contained in:
Jordan K. Hubbard 1994-02-13 20:43:13 +00:00
parent 8d5a4c1f9e
commit 09e3d49d92
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=1153
35 changed files with 2951 additions and 2387 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

54
gnu/usr.bin/ld/etc.c
View file

@ -1,5 +1,5 @@
/*
* $Id: etc.c,v 1.5 1993/12/04 00:52:55 jkh Exp $
* $Id: etc.c,v 1.6 1993/12/11 11:58:22 jkh Exp $
*/
#include <sys/param.h>
@ -48,6 +48,7 @@ error(fmt, va_alist)
va_end(ap);
}
void (*fatal_cleanup_hook)__P((void));
/*
* Report a fatal error.
*/
@ -72,8 +73,8 @@ fatal(fmt, va_alist)
(void)fprintf(stderr, "\n");
va_end(ap);
if (outdesc >= 0)
unlink(output_filename);
if (fatal_cleanup_hook)
(*fatal_cleanup_hook)();
exit(1);
}
@ -148,50 +149,3 @@ xrealloc(ptr, size)
return result;
}
/* These must move */
#ifndef RTLD
/*
* Output COUNT*ELTSIZE bytes of data at BUF to the descriptor DESC.
*/
void
mywrite (buf, count, eltsize, desc)
char *buf;
int count;
int eltsize;
int desc;
{
register int val;
register int bytes = count * eltsize;
while (bytes > 0) {
val = write (desc, buf, bytes);
if (val <= 0)
perror(output_filename);
buf += val;
bytes -= val;
}
}
/*
* Output PADDING zero-bytes to descriptor OUTDESC.
* PADDING may be negative; in that case, do nothing.
*/
void
padfile (padding, outdesc)
int padding;
int outdesc;
{
register char *buf;
if (padding <= 0)
return;
buf = (char *) alloca (padding);
bzero (buf, padding);
mywrite (buf, padding, 1, outdesc);
}
#endif

4
gnu/usr.bin/ld/i386/md-static-funcs.c
View file

@ -1,8 +1,10 @@
/*
* $Id: md-static-funcs.c,v 1.2 1993/12/08 10:14:44 pk Exp $
*
* Called by ld.so when onanating.
* This *must* be a static function, so it is not called through a jmpslot.
*/
static void
md_relocate_simple(r, relocation, addr)
struct relocation_info *r;

65
gnu/usr.bin/ld/i386/md.c
View file

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: md.c,v 1.7 1994/01/03 18:35:35 davidg Exp $
* $Id: md.c,v 1.8 1994/01/19 15:00:37 davidg Exp $
*/
#include <sys/param.h>
@ -41,8 +41,6 @@
#include "ld.h"
int netzmagic = 0;
/*
* Get relocation addend corresponding to relocation record RP
* from address ADDR
@ -89,29 +87,6 @@ unsigned char *addr;
}
}
/*
* Initialize (output) exec header such that useful values are
* obtained from subsequent N_*() macro evaluations.
*/
void
md_init_header(hp, magic, flags)
struct exec *hp;
int magic, flags;
{
if (!netzmagic && (magic == ZMAGIC)) {
hp->a_midmag = magic;
} else {
if (netzmagic)
N_SETMAGIC_NET((*hp), magic, MID_I386, flags);
else
N_SETMAGIC((*hp), magic, MID_I386, flags);
}
/* TEXT_START depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = PAGSIZ;
}
/*
* Machine dependent part of claim_rrs_reloc().
* Set RRS relocation type.
@ -251,8 +226,44 @@ long *savep;
*(char *)where = TRAP;
}
#ifdef NEED_SWAP
#ifndef RTLD
#ifdef FreeBSD
int netzmagic;
#endif
/*
* Initialize (output) exec header such that useful values are
* obtained from subsequent N_*() macro evaluations.
*/
void
md_init_header(hp, magic, flags)
struct exec *hp;
int magic, flags;
{
#ifdef NetBSD
if (oldmagic || magic == QMAGIC)
hp->a_midmag = magic;
else
N_SETMAGIC((*hp), magic, MID_I386, flags);
#endif
#ifdef FreeBSD
if (oldmagic)
hp->a_midmag = magic;
else if (netzmagic)
N_SETMAGIC_NET((*hp), magic, MID_I386, flags);
else
N_SETMAGIC((*hp), magic, MID_I386, flags);
#endif
/* TEXT_START depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = PAGSIZ;
}
#endif /* RTLD */
#ifdef NEED_SWAP
/*
* Byte swap routines for cross-linking.
*/

98
gnu/usr.bin/ld/i386/md.h
View file

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: md.h,v 1.7 1994/01/03 18:35:36 davidg Exp $
* $Id: md.h,v 1.8 1994/01/19 15:00:37 davidg Exp $
*/
@ -45,17 +45,41 @@
#define PAGSIZ 4096
#endif
#define N_SET_FLAG(ex,f) (netzmagic ? \
N_SETMAGIC_NET(ex,N_GETMAGIC_NET(ex), MID_MACHINE, \
N_GETFLAG_NET(ex)|(f)) : \
N_GETMAGIC(ex) == ZMAGIC ? \
N_SETMAGIC(ex,ZMAGIC,0,N_GETFLAG(ex)|(f)) : \
N_SETMAGIC(ex,N_GETMAGIC(ex), MID_MACHINE, \
N_GETFLAG(ex)|(f)))
#define N_IS_DYNAMIC(ex) ((N_GETMAGIC_NET(ex) == ZMAGIC) ? \
((N_GETFLAG_NET(ex) & EX_DYNAMIC)) : \
((N_GETFLAG(ex) & EX_DYNAMIC)))
#if defined(NetBSD) || defined(CROSS_LINKER)
#define N_SET_FLAG(ex,f) (oldmagic || N_GETMAGIC(ex)==QMAGIC ? (0) : \
N_SETMAGIC(ex, \
N_GETMAGIC(ex), \
MID_MACHINE, \
N_GETFLAG(ex)|(f)))
#define N_IS_DYNAMIC(ex) ((N_GETFLAG(ex) & EX_DYNAMIC))
#define N_BADMID(ex) \
(N_GETMID(ex) != 0 && N_GETMID(ex) != MID_MACHINE)
#endif
/*
* FreeBSD does it differently
*/
#ifdef FreeBSD
#define N_SET_FLAG(ex,f) (oldmagic ? (0) : \
(netzmagic == 0 ? \
N_SETMAGIC(ex, \
N_GETMAGIC(ex), \
MID_MACHINE, \
N_GETFLAG(ex)|(f)) : \
N_SETMAGIC_NET(ex, \
N_GETMAGIC_NET(ex), \
MID_MACHINE, \
N_GETFLAG_NET(ex)|(f)) ))
#define N_IS_DYNAMIC(ex) ((N_GETMAGIC_NET(ex) == ZMAGIC) ? \
((N_GETFLAG_NET(ex) & EX_DYNAMIC)) : \
((N_GETFLAG(ex) & EX_DYNAMIC) ))
#define N_BADMID(ex) 0
#endif
/*
* Should be handled by a.out.h ?
@ -101,16 +125,16 @@ typedef struct jmpslot {
#define md_swapout_zsymbols(s,n)
#define md_swapin_reloc(r,n)
#define md_swapout_reloc(r,n)
#define md_swapin_link_dynamic(l)
#define md_swapout_link_dynamic(l)
#define md_swapin_link_dynamic_2(l)
#define md_swapout_link_dynamic_2(l)
#define md_swapin_ld_debug(d)
#define md_swapout_ld_debug(d)
#define md_swapin__dynamic(l)
#define md_swapout__dynamic(l)
#define md_swapin_section_dispatch_table(l)
#define md_swapout_section_dispatch_table(l)
#define md_swapin_so_debug(d)
#define md_swapout_so_debug(d)
#define md_swapin_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n)
#define md_swapin_link_object(l,n)
#define md_swapout_link_object(l,n)
#define md_swapin_sod(l,n)
#define md_swapout_sod(l,n)
#define md_swapout_jmpslot(j,n)
#define md_swapout_got(g,n)
#define md_swapin_ranlib_hdr(h,n)
@ -130,23 +154,23 @@ void md_swapin_reloc __P((struct relocation_info *, int));
void md_swapout_reloc __P((struct relocation_info *, int));
void md_swapout_jmpslot __P((jmpslot_t *, int));
#define md_swapin_symbols(s,n) swap_symbols(s,n)
#define md_swapout_symbols(s,n) swap_symbols(s,n)
#define md_swapin_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapout_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapin_link_dynamic(l) swap_link_dynamic(l)
#define md_swapout_link_dynamic(l) swap_link_dynamic(l)
#define md_swapin_link_dynamic_2(l) swap_link_dynamic_2(l)
#define md_swapout_link_dynamic_2(l) swap_link_dynamic_2(l)
#define md_swapin_ld_debug(d) swap_ld_debug(d)
#define md_swapout_ld_debug(d) swap_ld_debug(d)
#define md_swapin_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapin_link_object(l,n) swapin_link_object(l,n)
#define md_swapout_link_object(l,n) swapout_link_object(l,n)
#define md_swapout_got(g,n) swap_longs((long*)(g),n)
#define md_swapin_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapout_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapin_symbols(s,n) swap_symbols(s,n)
#define md_swapout_symbols(s,n) swap_symbols(s,n)
#define md_swapin_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapout_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapin__dynamic(l) swap__dynamic(l)
#define md_swapout__dynamic(l) swap__dynamic(l)
#define md_swapin_section_dispatch_table(l) swap_section_dispatch_table(l)
#define md_swapout_section_dispatch_table(l) swap_section_dispatch_table(l)
#define md_swapin_so_debug(d) swap_so_debug(d)
#define md_swapout_so_debug(d) swap_so_debug(d)
#define md_swapin_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapin_sod(l,n) swapin_sod(l,n)
#define md_swapout_sod(l,n) swapout_sod(l,n)
#define md_swapout_got(g,n) swap_longs((long*)(g),n)
#define md_swapin_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapout_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swap_short(x) ( (((x) >> 8) & 0xff) | (((x) & 0xff) << 8) )

33
gnu/usr.bin/ld/ld.1
View file

@ -14,7 +14,7 @@
.\" must display the following acknowledgement:
.\" This product includes software developed by Paul Kranenburg.
.\" 3. The name of the author may not be used to endorse or promote products
.\" derived from this software withough specific prior written permission
.\" derived from this software without specific prior written permission
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,11 +27,11 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id: ld.1,v 1.3 1994/01/03 23:52:35 jkh Exp $
.\" $Id: ld.1,v 1.5 1994/01/29 02:03:04 jtc Exp $
.\"
.Dd October 14, 1993
.Dt LD 8
.Os FreeBSD
.Os FreeBSD 1.1
.Sh NAME
.Nm ld
.Nd link editor
@ -69,7 +69,7 @@ The options are as follows:
.It Fl A Ar symbol-file
The the symbol-file is taken as a base for link-editing the object files
on the command line.
.It \-assert Ar keyword
.It Fl a\&ssert Ar keyword
This option has currently no effect. It is here for compatibility with
SunOS ld. All conditions which would cause a Sun assertion to fail will
currently always cause error or warning messages from
@ -85,7 +85,7 @@ found a traditional archive is looked for.
This options can appear anywhere on the command line and is complementary
to -Bstatic.
.It Fl B Ar static
The counterpart of -Bdynamic. This options turns off dynamic linking for
The counterpart of -Bdynamic. This option turns off dynamic linking for
all library specifiers until a -Bdynamic is once again given. Any explicitly
mentioned shared object encountered on the command line while this option is
in effect is flagged as an error.
@ -170,27 +170,30 @@ Discard local symbols in the input files that start with the letter
.Dq L
.It Fl x
Discard all local symbols in the input files.
.It Fl y symbol
.It Fl y Ar symbol
Trace the manipulations inflicted on
.Ar symbol
.It Fl Z
Make a NetBSD 0.9 ZMAGIC output file.
.It Fl z
Make a ZMAGIC output file. This is the older 386BSD / FreeBSD 1.0 format.
Make a NetBSD 0.9 ZMAGIC output file.
.Sh FILES
.Sh SEE ALSO
.Xr ldconfig 1 ,
.Xr link 5
.Sh BUGS
Spurious
.Dq undefined symbols errors
may be reported for symbols originating in shared libraries. This occurs
when there is also at least one genuine undefined symbol to report.
.Sh CAVEATS
An entry point must now explicitly be given if the output is intended to be
a normal executable program. This was not the case for the previous version of
.Nm ld\&.
.Sh BUGS
Shared objects are not properly checked for undefined symbols.
.Pp
Cascading of shared object defeats the
.Dq -Bstatic
option.
.Pp
All shared objects presented to
.Nm ld
are marked for run-time loading in the output file, even if no symbols
are needed from them.
.Sh HISTORY
The shared library model employed by
.Nm ld

33
gnu/usr.bin/ld/ld.1aout
View file

@ -14,7 +14,7 @@
.\" must display the following acknowledgement:
.\" This product includes software developed by Paul Kranenburg.
.\" 3. The name of the author may not be used to endorse or promote products
.\" derived from this software withough specific prior written permission
.\" derived from this software without specific prior written permission
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,11 +27,11 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id: ld.1,v 1.3 1994/01/03 23:52:35 jkh Exp $
.\" $Id: ld.1,v 1.5 1994/01/29 02:03:04 jtc Exp $
.\"
.Dd October 14, 1993
.Dt LD 8
.Os FreeBSD
.Os FreeBSD 1.1
.Sh NAME
.Nm ld
.Nd link editor
@ -69,7 +69,7 @@ The options are as follows:
.It Fl A Ar symbol-file
The the symbol-file is taken as a base for link-editing the object files
on the command line.
.It \-assert Ar keyword
.It Fl a\&ssert Ar keyword
This option has currently no effect. It is here for compatibility with
SunOS ld. All conditions which would cause a Sun assertion to fail will
currently always cause error or warning messages from
@ -85,7 +85,7 @@ found a traditional archive is looked for.
This options can appear anywhere on the command line and is complementary
to -Bstatic.
.It Fl B Ar static
The counterpart of -Bdynamic. This options turns off dynamic linking for
The counterpart of -Bdynamic. This option turns off dynamic linking for
all library specifiers until a -Bdynamic is once again given. Any explicitly
mentioned shared object encountered on the command line while this option is
in effect is flagged as an error.
@ -170,27 +170,30 @@ Discard local symbols in the input files that start with the letter
.Dq L
.It Fl x
Discard all local symbols in the input files.
.It Fl y symbol
.It Fl y Ar symbol
Trace the manipulations inflicted on
.Ar symbol
.It Fl Z
Make a NetBSD 0.9 ZMAGIC output file.
.It Fl z
Make a ZMAGIC output file. This is the older 386BSD / FreeBSD 1.0 format.
Make a NetBSD 0.9 ZMAGIC output file.
.Sh FILES
.Sh SEE ALSO
.Xr ldconfig 1 ,
.Xr link 5
.Sh BUGS
Spurious
.Dq undefined symbols errors
may be reported for symbols originating in shared libraries. This occurs
when there is also at least one genuine undefined symbol to report.
.Sh CAVEATS
An entry point must now explicitly be given if the output is intended to be
a normal executable program. This was not the case for the previous version of
.Nm ld\&.
.Sh BUGS
Shared objects are not properly checked for undefined symbols.
.Pp
Cascading of shared object defeats the
.Dq -Bstatic
option.
.Pp
All shared objects presented to
.Nm ld
are marked for run-time loading in the output file, even if no symbols
are needed from them.
.Sh HISTORY
The shared library model employed by
.Nm ld

933
gnu/usr.bin/ld/ld.c
View file

File diff suppressed because it is too large Load diff

629
gnu/usr.bin/ld/ld.h
View file

@ -1,4 +1,6 @@
/* $Id: ld.h,v 1.8 1993/12/11 11:58:26 jkh Exp $ */
/*
* $Id: ld.h,v 1.8 1994/01/28 20:56:24 pk Exp $
*/
/*-
* This code is derived from software copyrighted by the Free Software
* Foundation.
@ -29,6 +31,10 @@
#define alloca __builtin_alloca
#endif
#ifdef __FreeBSD__
#define FreeBSD
#endif
#include "md.h"
#include "link.h"
@ -41,23 +47,21 @@
/* Align to machine dependent boundary */
#define MALIGN(x) PALIGN(x,MAX_ALIGNMENT)
/* Size of a page; obtained from the operating system. */
int page_size;
/* Name this program was invoked by. */
char *progname;
char *progname;
/* System dependencies */
/* Define this to specify the default executable format. */
#ifndef DEFAULT_MAGIC
#ifdef FreeBSD
#define DEFAULT_MAGIC QMAGIC
extern int netzmagic;
#else
#define DEFAULT_MAGIC ZMAGIC
#endif
#endif
extern netzmagic;
/*
@ -181,7 +185,7 @@ extern netzmagic;
#ifndef DATA_START
#define DATA_START(x) N_DATADDR(x)
#endif
/* If a this type of symbol is encountered, its name is a warning
message to print each time the symbol referenced by the next symbol
table entry is referenced.
@ -330,6 +334,22 @@ extern netzmagic;
#endif /* not __GNU_STAB__ */
typedef struct localsymbol {
struct nzlist nzlist; /* n[z]list from file */
struct glosym *symbol; /* Corresponding global symbol,
if any */
struct localsymbol *next; /* List of definitions */
struct file_entry *entry; /* Backpointer to file */
long gotslot_offset; /* Position in GOT, if any */
int symbolnum; /* Position in output nlist */
int flags;
#define LS_L_SYMBOL 1 /* Local symbol starts with an `L' */
#define LS_WRITE 2 /* Symbol goes in output symtable */
#define LS_RENAME 4 /* xlat name to `<file>.<name>' */
#define LS_GOTSLOTCLAIMED 8 /* This symbol has a GOT entry */
} localsymbol_t;
/* Symbol table */
/*
@ -340,225 +360,102 @@ extern netzmagic;
*/
typedef struct glosym {
/* Pointer to next symbol in this symbol's hash bucket. */
struct glosym *link;
/* Name of this symbol. */
char *name;
/* Value of this symbol as a global symbol. */
long value;
/*
* Chain of external 'nlist's in files for this symbol, both defs and
* refs.
*/
struct localsymbol *refs;
/*
* Any warning message that might be associated with this symbol from
* an N_WARNING symbol encountered.
*/
char *warning;
/*
* Nonzero means definitions of this symbol as common have been seen,
* and the value here is the largest size specified by any of them.
*/
int max_common_size;
/*
* For relocatable_output, records the index of this global sym in
* the symbol table to be written, with the first global sym given
* index 0.
*/
int symbolnum;
/*
* For dynamically linked output, records the index in the RRS
* symbol table.
*/
int rrs_symbolnum;
/*
* Nonzero means a definition of this global symbol is known to
* exist. Library members should not be loaded on its account.
*/
char defined;
/*
* Nonzero means a reference to this global symbol has been seen in a
* file that is surely being loaded. A value higher than 1 is the
* n_type code for the symbol's definition.
*/
char referenced;
/*
* A count of the number of undefined references printed for a
* specific symbol. If a symbol is unresolved at the end of
* digest_symbols (and the loading run is supposed to produce
* relocatable output) do_file_warnings keeps track of how many
* unresolved reference error messages have been printed for each
* symbol here. When the number hits MAX_UREFS_PRINTED, messages
* stop.
*/
unsigned char undef_refs;
/*
* 1 means that this symbol has multiple definitions. 2 means that
* it has multiple definitions, and some of them are set elements,
* one of which has been printed out already.
*/
unsigned char multiply_defined;
/* Nonzero means print a message at all refs or defs of this symbol */
char trace;
struct glosym *link; /* Next symbol hash bucket. */
char *name; /* Name of this symbol. */
long value; /* Value of this symbol */
localsymbol_t *refs; /* Chain of local symbols from object
files pertaining to this global
symbol */
localsymbol_t *sorefs;/* Same for local symbols from shared
object files. */
/*
* For symbols of type N_INDR, this points at the real symbol.
*/
struct glosym *alias;
char *warning; /* message, from N_WARNING nlists */
int common_size; /* Common size */
int symbolnum; /* Symbol index in output symbol table */
int rrs_symbolnum; /* Symbol index in RRS symbol table */
/*
* Count number of elements in set vector if symbol is of type N_SETV
*/
int setv_count;
struct nlist *def_nlist; /* The local symbol that gave this
global symbol its definition */
/* Dynamic lib support */
/*
* Nonzero means a definition of this global symbol has been found
* in a shared object. These symbols do not go into the symbol
* section of the resulting a.out file. They *do* go into the
* dynamic link information segment.
*/
char so_defined;
/* Size of symbol as determined by N_SIZE symbols in object files */
int size;
/* Auxialiary info to put in the `nz_other' field of the
* RRS symbol table. Used by the run-time linker to resolve
* references to function addresses from within shared objects.
*/
int aux;
#define RRS_FUNC 2
/*
* Chain of external 'nlist's in shared objects for this symbol, both
* defs and refs.
*/
struct localsymbol *sorefs;
char defined; /* Definition of this symbol */
char so_defined; /* Definition of this symbol in a shared
object. These go into the RRS symbol table */
u_char undef_refs; /* Count of number of "undefined"
messages printed for this symbol */
u_char mult_defs; /* Same for "multiply defined" symbols */
struct glosym *alias; /* For symbols of type N_INDR, this
points at the real symbol. */
int setv_count; /* Number of elements in N_SETV symbols */
int size; /* Size of this symbol (either from N_SIZE
symbols or a from shared object's RRS */
int aux; /* Auxiliary type information conveyed in
the `n_other' field of nlists */
/* The offset into one of the RRS tables, -1 if not used */
long jmpslot_offset;
char jmpslot_claimed;
long jmpslot_offset;
long gotslot_offset;
long gotslot_offset;
char gotslot_claimed;
long flags;
char cpyreloc_reserved;
char cpyreloc_claimed;
#define GS_DEFINED 1 /* Symbol has definition (notyetused)*/
#define GS_REFERENCED 2 /* Symbol is referred to by something
interesting */
#define GS_TRACE 4 /* Symbol will be traced */
#define GS_JMPSLOTCLAIMED 8 /* */
#define GS_GOTSLOTCLAIMED 0x10 /* Some state bits concerning */
#define GS_CPYRELOCRESERVED 0x20 /* entries in GOT and PLT tables */
#define GS_CPYRELOCCLAIMED 0x40 /* */
/* The local symbol that gave this global symbol its definition */
struct nlist *def_nlist;
} symbol;
/* Number of buckets in symbol hash table */
#define TABSIZE 1009
#define SYMTABSIZE 1009
/* The symbol hash table: a vector of TABSIZE pointers to struct glosym. */
symbol *symtab[TABSIZE];
/* The symbol hash table: a vector of SYMTABSIZE pointers to struct glosym. */
extern symbol *symtab[];
#define FOR_EACH_SYMBOL(i,sp) { \
int i; \
for (i = 0; i < TABSIZE; i++) { \
for (i = 0; i < SYMTABSIZE; i++) { \
register symbol *sp; \
for (sp = symtab[i]; sp; sp = sp->link)
#define END_EACH_SYMBOL }}
/* Number of symbols in symbol hash table. */
int num_hash_tab_syms;
/* # of global symbols referenced and not defined. */
extern int undefined_global_sym_count;
/* Count number of nlist entries for global symbols */
int global_sym_count;
/* # of undefined symbols referenced by shared objects */
extern int undefined_shobj_sym_count;
/* Count number of N_SIZE nlist entries for output (relocatable_output only) */
int size_sym_count;
/* # of multiply defined symbols. */
extern int multiple_def_count;
/* Count the number of nlist entries that are for local symbols.
This count and the three following counts
are incremented as as symbols are entered in the symbol table. */
int local_sym_count;
/* # of common symbols. */
extern int common_defined_global_count;
/* Count number of nlist entries that are for local symbols
whose names don't start with L. */
int non_L_local_sym_count;
/* # of warning symbols encountered. */
extern int warning_count;
/* Count the number of nlist entries for debugger info. */
int debugger_sym_count;
/* Count the number of global symbols referenced and not defined. */
int undefined_global_sym_count;
/* Count the number of symbols referenced from shared objects and not defined */
int undefined_shobj_sym_count;
/* Count the number of global symbols multiply defined. */
int multiple_def_count;
/* Count the number of defined global symbols.
Each symbol is counted only once
regardless of how many different nlist entries refer to it,
since the output file will need only one nlist entry for it.
This count is computed by `digest_symbols';
it is undefined while symbols are being loaded. */
int defined_global_sym_count;
/* Count the number of symbols defined through common declarations.
This count is kept in symdef_library, linear_library, and
enter_global_ref. It is incremented when the defined flag is set
in a symbol because of a common definition, and decremented when
the symbol is defined "for real" (ie. by something besides a common
definition). */
int common_defined_global_count;
/* Count the number of linker defined symbols.
XXX - Currently, only __DYNAMIC and _G_O_T_ go here if required,
perhaps _etext, _edata and _end should go here too */
int special_sym_count;
/* Count number of aliased symbols */
int global_alias_count;
/* Count number of set element type symbols and the number of separate
vectors which these symbols will fit into */
int set_symbol_count;
int set_vector_count;
/* Define a linked list of strings which define symbols which should
be treated as set elements even though they aren't. Any symbol
with a prefix matching one of these should be treated as a set
element.
This is to make up for deficiencies in many assemblers which aren't
willing to pass any stabs through to the loader which they don't
understand. */
/*
* Define a linked list of strings which define symbols which should be
* treated as set elements even though they aren't. Any symbol with a prefix
* matching one of these should be treated as a set element.
*
* This is to make up for deficiencies in many assemblers which aren't willing
* to pass any stabs through to the loader which they don't understand.
*/
struct string_list_element {
char *str;
struct string_list_element *next;
char *str;
struct string_list_element *next;
};
struct string_list_element *set_element_prefixes;
extern symbol *entry_symbol; /* the entry symbol, if any */
extern symbol *edata_symbol; /* the symbol _edata */
extern symbol *etext_symbol; /* the symbol _etext */
extern symbol *end_symbol; /* the symbol _end */
extern symbol *got_symbol; /* the symbol __GLOBAL_OFFSET_TABLE_ */
extern symbol *dynamic_symbol; /* the symbol __DYNAMIC */
/* Count the number of warning symbols encountered. */
int warning_count;
/* 1 => write load map. */
int write_map;
/* 1 => write relocation into output file so can re-input it later. */
int relocatable_output;
/* Nonzero means ptr to symbol entry for symbol to use as start addr.
-e sets this. */
symbol *entry_symbol;
symbol *edata_symbol; /* the symbol _edata */
symbol *etext_symbol; /* the symbol _etext */
symbol *end_symbol; /* the symbol _end */
symbol *got_symbol; /* the symbol __GLOBAL_OFFSET_TABLE_ */
symbol *dynamic_symbol; /* the symbol __DYNAMIC */
/*
* Each input file, and each library member ("subfile") being loaded, has a
* `file_entry' structure for it.
@ -573,160 +470,82 @@ symbol *dynamic_symbol; /* the symbol __DYNAMIC */
*/
struct file_entry {
/* Name of this file. */
char *filename;
char *filename; /* Name of this file. */
/*
* Name to use for the symbol giving address of text start Usually
* the same as filename, but for a file spec'd with -l this is the -l
* switch itself rather than the filename.
*/
char *local_sym_name;
/* Describe the layout of the contents of the file */
/* The file's a.out header. */
struct exec header;
#if 0
/* Offset in file of GDB symbol segment, or 0 if there is none. */
int symseg_offset;
#endif
/* Describe data from the file loaded into core */
char *local_sym_name;
struct exec header; /* The file's a.out header. */
localsymbol_t *symbols; /* Symbol table of the file. */
int nsymbols; /* Number of symbols in above array. */
int string_size; /* Size in bytes of string table. */
char *strings; /* Pointer to the string table when
in core, NULL otherwise */
int strings_offset; /* Offset of string table,
(normally N_STROFF() + 4) */
/*
* Next two used only if `relocatable_output' or if needed for
* output of undefined reference line numbers.
*/
struct relocation_info *textrel; /* Text relocations */
int ntextrel; /* # of text relocations */
struct relocation_info *datarel; /* Data relocations */
int ndatarel; /* # of data relocations */
/*
* Symbol table of the file.
* We need access to the global symbol early, ie. before
* symbols are asssigned there final values. gotslot_offset is
* here because GOT entries may be generated for local symbols.
* Relation of this file's segments to the output file.
*/
struct localsymbol {
struct nzlist nzlist;
struct glosym *symbol;
struct localsymbol *next;
long gotslot_offset;
char gotslot_claimed;
char write;
char is_L_symbol;
char rename;
int symbolnum;
} *symbols;
/* Number of symbols in above array. */
int nsymbols;
/* Size in bytes of string table. */
int string_size;
/*
* Pointer to the string table. The string table is not kept in core
* all the time, but when it is in core, its address is here.
*/
char *strings;
/* Offset of string table (normally N_STROFF() + 4) */
int strings_offset;
/* Next two used only if `relocatable_output' or if needed for */
/* output of undefined reference line numbers. */
/* Text reloc info saved by `write_text' for `coptxtrel'. */
struct relocation_info *textrel;
int ntextrel;
/* Data reloc info saved by `write_data' for `copdatrel'. */
struct relocation_info *datarel;
int ndatarel;
/* Relation of this file's segments to the output file */
/* Start of this file's text seg in the output file core image. */
int text_start_address;
/* Start of this file's data seg in the output file core image. */
int data_start_address;
/* Start of this file's bss seg in the output file core image. */
int bss_start_address;
#if 0
/*
* Offset in bytes in the output file symbol table of the first local
* symbol for this file. Set by `write_file_symbols'.
*/
int local_syms_offset;
#endif
/* For library members only */
/* For a library, points to chain of entries for the library members. */
struct file_entry *subfiles;
/*
* For a library member, offset of the member within the archive.
* Zero for files that are not library members.
*/
int starting_offset;
/* Size of contents of this file, if library member. */
int total_size;
/* For library member, points to the library's own entry. */
struct file_entry *superfile;
/* For library member, points to next entry for next member. */
struct file_entry *chain;
int text_start_address; /* Start of this file's text segment
in the output file core image. */
int data_start_address; /* Start of this file's data segment
in the output file core image. */
int bss_start_address; /* Start of this file's bss segment
in the output file core image. */
struct file_entry *subfiles; /* For a library, points to chain of
entries for the library members. */
struct file_entry *superfile; /* For library member, points to the
library's own entry. */
struct file_entry *chain; /* For library member, points to next
entry for next member. */
int starting_offset; /* For a library member, offset of the
member within the archive. Zero for
files that are not library members.*/
int total_size; /* Size of contents of this file,
if library member. */
#ifdef SUN_COMPAT
/* For shared libraries which have a .sa companion */
struct file_entry *silly_archive;
struct file_entry *silly_archive;/* For shared libraries which have
a .sa companion */
#endif
int lib_major, lib_minor; /* Version numbers of a shared object */
/* 1 if file is a library. */
char library_flag;
/* 1 if file's header has been read into this structure. */
char header_read_flag;
/* 1 means search a set of directories for this file. */
char search_dirs_flag;
/*
* 1 means this is base file of incremental load. Do not load this
* file's text or data. Also default text_start to after this file's
* bss.
*/
char just_syms_flag;
/* 1 means search for dynamic libraries (dependent on -B switch) */
char search_dynamic_flag;
/* version numbers of selected shared library */
int lib_major, lib_minor;
/* This entry is a shared object */
char is_dynamic;
/* 1 if this entry is not a major player anymore */
char scrapped;
int flags;
#define E_IS_LIBRARY 1 /* File is a an archive */
#define E_HEADER_VALID 2 /* File's header has been read */
#define E_SEARCH_DIRS 4 /* Search directories for file */
#define E_SEARCH_DYNAMIC 8 /* Search for shared libs allowed */
#define E_JUST_SYMS 0x10 /* File is used for incremental load */
#define E_DYNAMIC 0x20 /* File is a shared object */
#define E_SCRAPPED 0x40 /* Ignore this file */
#define E_SYMBOLS_USED 0x80 /* Symbols from this entry were used */
};
typedef struct localsymbol localsymbol_t;
/*
* Section start addresses.
*/
extern int text_size; /* total size of text. */
extern int text_start; /* start of text */
extern int text_pad; /* clear space between text and data */
extern int data_size; /* total size of data. */
extern int data_start; /* start of data */
extern int data_pad; /* part of bss segment within data */
/* Vector of entries for input files specified by arguments.
These are all the input files except for members of specified libraries. */
struct file_entry *file_table;
extern int bss_size; /* total size of bss. */
extern int bss_start; /* start of bss */
/* Length of that vector. */
int number_of_files;
/* Current link mode */
#define DYNAMIC 1 /* Consider shared libraries */
#define SYMBOLIC 2 /* Force symbolic resolution */
#define FORCEARCHIVE 4 /* Force inclusion of all members
of archives */
#define SHAREABLE 8 /* Build a shared object */
#define SILLYARCHIVE 16 /* Process .sa companions, if any */
int link_mode;
extern int text_reloc_size; /* total size of text relocation. */
extern int data_reloc_size; /* total size of data relocation. */
/*
* Runtime Relocation Section (RRS).
@ -735,115 +554,57 @@ int link_mode;
* static linking), or can just exist of GOT and PLT entries (in case of
* statically linked PIC code).
*/
int rrs_section_type;
extern int rrs_section_type; /* What's in the RRS section */
#define RRS_NONE 0
#define RRS_PARTIAL 1
#define RRS_FULL 2
int rrs_text_size;
int rrs_data_size;
int rrs_text_start;
int rrs_data_start;
extern int rrs_text_size; /* Size of RRS text additions */
extern int rrs_text_start; /* Location of above */
extern int rrs_data_size; /* Size of RRS data additions */
extern int rrs_data_start; /* Location of above */
/* Version number to put in __DYNAMIC (set by -V) */
int soversion;
extern int soversion;
#ifndef DEFAULT_SOVERSION
#define DEFAULT_SOVERSION LD_VERSION_BSD
#endif
/* When loading the text and data, we can avoid doing a close
and another open between members of the same library.
extern int pc_relocation; /* Current PC reloc value */
These two variables remember the file that is currently open.
Both are zero if no file is open.
extern int number_of_shobjs; /* # of shared objects linked in */
See `each_file' and `file_close'. */
/* Current link mode */
extern int link_mode;
#define DYNAMIC 1 /* Consider shared libraries */
#define SYMBOLIC 2 /* Force symbolic resolution */
#define FORCEARCHIVE 4 /* Force inclusion of all members
of archives */
#define SHAREABLE 8 /* Build a shared object */
#define SILLYARCHIVE 16 /* Process .sa companions, if any */
struct file_entry *input_file;
int input_desc;
extern int outdesc; /* Output file descriptor. */
extern struct exec outheader; /* Output file header. */
extern int magic; /* Output file magic. */
extern int oldmagic;
extern int relocatable_output;
/* The name of the file to write; "a.out" by default. */
/* Size of a page. */
extern int page_size;
char *output_filename;
extern char **search_dirs; /* Directories to search for libraries. */
extern int n_search_dirs; /* Length of above. */
/* Descriptor for writing that file with `mywrite'. */
extern int write_map; /* write a load map (`-M') */
int outdesc;
extern void (*fatal_cleanup_hook)__P((void));
/* Header for that file (filled in by `write_header'). */
struct exec outheader;
/* The following are computed by `digest_symbols'. */
int text_size; /* total size of text of all input files. */
int data_size; /* total size of data of all input files. */
int bss_size; /* total size of bss of all input files. */
int text_reloc_size; /* total size of text relocation of all input files. */
int data_reloc_size; /* total size of data relocation of all input files. */
/* Relocation offsets set by perform_relocation(). Defined globaly here
because some of the RRS routines need access to them */
int text_relocation;
int data_relocation;
int bss_relocation;
int pc_relocation;
/* Specifications of start and length of the area reserved at the end
of the data segment for the set vectors. Computed in 'digest_symbols' */
int set_sect_start;
int set_sect_size;
/* Amount of cleared space to leave between the text and data segments. */
int text_pad;
/* Amount of bss segment to include as part of the data segment. */
int data_pad;
/* Record most of the command options. */
/* Address we assume the text section will be loaded at.
We relocate symbols and text and data for this, but we do not
write any padding in the output file for it. */
int text_start;
/* Offset of default entry-pc within the text section. */
int entry_offset;
/* Address we decide the data section will be loaded at. */
int data_start;
int bss_start;
/* Keep a list of any symbols referenced from the command line (so
that error messages for these guys can be generated). This list is
zero terminated. */
struct glosym **cmdline_references;
int cl_refs_allocated;
/*
* Actual vector of directories to search; this contains those specified with
* -L plus the standard ones.
*/
char **search_dirs;
/* Length of the vector `search_dirs'. */
int n_search_dirs;
void load_symbols __P((void));
void read_header __P((int, struct file_entry *));
void read_entry_symbols __P((int, struct file_entry *));
void read_entry_strings __P((int, struct file_entry *));
void read_entry_relocation __P((int, struct file_entry *));
void enter_file_symbols __P((struct file_entry *));
void read_file_symbols __P((struct file_entry *));
void write_output __P((void));
void write_header __P((void));
void write_text __P((void));
void write_data __P((void));
void write_rel __P((void));
void write_syms __P((void));
void write_symsegs __P((void));
void mywrite ();
void mywrite __P((void *, int, int, int));
/* In warnings.c: */
void perror_name __P((char *));
@ -917,10 +678,10 @@ void swap_longs __P((long *, int));
void swap_symbols __P((struct nlist *, int));
void swap_zsymbols __P((struct nzlist *, int));
void swap_ranlib_hdr __P((struct ranlib *, int));
void swap_link_dynamic __P((struct link_dynamic *));
void swap_link_dynamic_2 __P((struct link_dynamic_2 *));
void swap_ld_debug __P((struct ld_debug *));
void swapin_link_object __P((struct link_object *, int));
void swapout_link_object __P((struct link_object *, int));
void swap__dynamic __P((struct link_dynamic *));
void swap_section_dispatch_table __P((struct section_dispatch_table *));
void swap_so_debug __P((struct so_debug *));
void swapin_sod __P((struct sod *, int));
void swapout_sod __P((struct sod *, int));
void swapout_fshash __P((struct fshash *, int));
#endif

10
gnu/usr.bin/ld/ldconfig/Makefile
View file

@ -1,12 +1,12 @@
# $Id: Makefile,v 1.4 1993/11/09 20:39:46 paul Exp $
# $Id: Makefile,v 1.7 1993/12/10 05:10:22 mycroft Exp $
PROG= ldconfig
SRCS= ldconfig.c shlib.c etc.c
LDDIR?= $(.CURDIR)/..
LDFLAGS += -static
CFLAGS += -I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) -O
BINDIR= /sbin
MAN8 = ldconfig.8
CFLAGS+=-I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE)
LDSTATIC=-static
BINDIR= /sbin
MAN8= ldconfig.8
.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)

2
gnu/usr.bin/ld/ldconfig/ldconfig.8
View file

@ -1,6 +1,6 @@
.Dd October 3, 1993
.Dt LDCONFIG 8
.Os FreeBSD
.Os FreeBSD 1.1
.Sh NAME
.Nm ldconfig
.Nd configure the shared library cache

36
gnu/usr.bin/ld/ldconfig/ldconfig.c
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ldconfig.c,v 1.2 1993/11/09 04:19:22 paul Exp $
* $Id: ldconfig.c,v 1.4 1993/12/02 01:03:16 jkh Exp $
*/
#include <sys/param.h>
@ -72,7 +72,7 @@ struct shlib_list {
static struct shlib_list *shlib_head = NULL, **shlib_tail = &shlib_head;
static void enter __P((char *, char *, char *, int *, int));
static int dodir __P((char *));
static int dodir __P((char *, int));
static int build_hints __P((void));
int
@ -114,10 +114,10 @@ char *argv[];
std_search_dirs(NULL);
for (i = 0; i < n_search_dirs; i++)
rval |= dodir(search_dirs[i]);
rval |= dodir(search_dirs[i], 1);
for (i = optind; i < argc; i++)
rval |= dodir(argv[i]);
rval |= dodir(argv[i], 0);
rval |= build_hints();
@ -125,8 +125,9 @@ char *argv[];
}
int
dodir(dir)
dodir(dir, silent)
char *dir;
int silent;
{
DIR *dd;
struct dirent *dp;
@ -134,7 +135,8 @@ char *dir;
int dewey[MAXDEWEY], ndewey;
if ((dd = opendir(dir)) == NULL) {
perror(dir);
if (!silent || errno != ENOENT)
perror(dir);
return -1;
}
@ -314,16 +316,26 @@ build_hints()
return -1;
}
mywrite(&hdr, 1, sizeof(struct hints_header), fd);
mywrite(blist, hdr.hh_nbucket, sizeof(struct hints_bucket), fd);
mywrite(strtab, strtab_sz, 1, fd);
if (write(fd, &hdr, sizeof(struct hints_header)) !=
sizeof(struct hints_header)) {
perror(_PATH_LD_HINTS);
return -1;
}
if (write(fd, blist, hdr.hh_nbucket * sizeof(struct hints_bucket)) !=
hdr.hh_nbucket * sizeof(struct hints_bucket)) {
perror(_PATH_LD_HINTS);
return -1;
}
if (write(fd, strtab, strtab_sz) != strtab_sz) {
perror(_PATH_LD_HINTS);
return -1;
}
if (close(fd) != 0) {
perror(_PATH_LD_HINTS);
return -1;
}
/* Now, install real file */
/* Install it */
if (unlink(_PATH_LD_HINTS) != 0 && errno != ENOENT) {
perror(_PATH_LD_HINTS);
return -1;

2
gnu/usr.bin/ld/ldd/ldd.1
View file

@ -1,6 +1,6 @@
.Dd October 22, 1993
.Dt LDD 1
.Os FreeBSD
.Os FreeBSD 1.1
.Sh NAME
.Nm ldd
.Nd list dynamic object dependencies

5
gnu/usr.bin/ld/ldd/ldd.c
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ldd.c,v 1.3 1993/10/31 14:54:29 pk Exp $
* $Id: ldd.c,v 1.2 1993/11/09 04:19:27 paul Exp $
*/
#include <sys/param.h>
@ -107,6 +107,7 @@ char *argv[];
(void)close(fd);
printf("%s:\n", *argv);
fflush(stdout);
switch (fork()) {
case -1:

244
gnu/usr.bin/ld/lib.c
View file

@ -1,5 +1,5 @@
/*
* $Id: lib.c,v 1.7 1993/12/11 11:58:27 jkh Exp $ - library routines
* $Id: lib.c,v 1.8 1993/12/22 23:28:11 jkh Exp $ - library routines
*/
#include <sys/param.h>
@ -19,13 +19,11 @@
#include "ld.h"
char **search_dirs;
/* Length of the vector `search_dirs'. */
int n_search_dirs;
struct file_entry *decode_library_subfile();
void linear_library(), symdef_library();
static void linear_library __P((int, struct file_entry *));
static void symdef_library __P((int, struct file_entry *, int));
static struct file_entry *decode_library_subfile __P((int,
struct file_entry *,
int, int *));
/*
* Search the library ENTRY, already open on descriptor DESC. This means
@ -69,7 +67,7 @@ search_library(desc, entry)
* We store the length of the member into *LENGTH_LOC.
*/
struct file_entry *
static struct file_entry *
decode_library_subfile(desc, library_entry, subfile_offset, length_loc)
int desc;
struct file_entry *library_entry;
@ -113,12 +111,10 @@ decode_library_subfile(desc, library_entry, subfile_offset, length_loc)
* BSD 4.4 extended AR format: #1/<namelen>, with name as the
* first <namelen> bytes of the file
*/
if ( (hdr1.ar_name[0] == '#') &&
(hdr1.ar_name[1] == '1') &&
(hdr1.ar_name[2] == '/') &&
(isdigit(hdr1.ar_name[3]))) {
if (strncmp(hdr1.ar_name, AR_EFMT1, sizeof(AR_EFMT1) - 1) == 0 &&
isdigit(hdr1.ar_name[sizeof(AR_EFMT1) - 1])) {
namelen = atoi(&hdr1.ar_name[3]);
namelen = atoi(&hdr1.ar_name[sizeof(AR_EFMT1) - 1]);
name = (char *)xmalloc(namelen + 1);
if (read(desc, name, namelen) != namelen)
fatal_with_file(
@ -143,10 +139,8 @@ decode_library_subfile(desc, library_entry, subfile_offset, length_loc)
subentry->subfiles = 0;
subentry->starting_offset = starting_offset;
subentry->superfile = library_entry;
subentry->library_flag = 0;
subentry->header_read_flag = 0;
subentry->just_syms_flag = 0;
subentry->chain = 0;
subentry->flags = 0;
subentry->total_size = content_length;
(*length_loc) = member_length;
@ -154,7 +148,7 @@ decode_library_subfile(desc, library_entry, subfile_offset, length_loc)
return subentry;
}
int subfile_wanted_p();
static int subfile_wanted_p __P((struct file_entry *));
/*
* Search a library that has a __.SYMDEF member. DESC is a descriptor on
@ -163,7 +157,7 @@ int subfile_wanted_p();
* length of the __.SYMDEF data.
*/
void
static void
symdef_library(desc, entry, member_length)
int desc;
struct file_entry *entry;
@ -172,7 +166,7 @@ symdef_library(desc, entry, member_length)
int *symdef_data = (int *) xmalloc(member_length);
register struct ranlib *symdef_base;
char *sym_name_base;
int number_of_symdefs;
int nsymdefs;
int length_of_strings;
int not_finished;
int bytes_read;
@ -184,24 +178,24 @@ symdef_library(desc, entry, member_length)
if (bytes_read != member_length)
fatal_with_file("malformatted __.SYMDEF in ", entry);
number_of_symdefs = md_swap_long(*symdef_data) / sizeof(struct ranlib);
if (number_of_symdefs < 0 ||
number_of_symdefs * sizeof(struct ranlib) + 2 * sizeof(int) > member_length)
nsymdefs = md_swap_long(*symdef_data) / sizeof(struct ranlib);
if (nsymdefs < 0 ||
nsymdefs * sizeof(struct ranlib) + 2 * sizeof(int) > member_length)
fatal_with_file("malformatted __.SYMDEF in ", entry);
symdef_base = (struct ranlib *) (symdef_data + 1);
length_of_strings = md_swap_long(*(int *) (symdef_base + number_of_symdefs));
length_of_strings = md_swap_long(*(int *) (symdef_base + nsymdefs));
if (length_of_strings < 0
|| number_of_symdefs * sizeof(struct ranlib) + length_of_strings
|| nsymdefs * sizeof(struct ranlib) + length_of_strings
+ 2 * sizeof(int) > member_length)
fatal_with_file("malformatted __.SYMDEF in ", entry);
sym_name_base = sizeof(int) + (char *) (symdef_base + number_of_symdefs);
sym_name_base = sizeof(int) + (char *) (symdef_base + nsymdefs);
/* Check all the string indexes for validity. */
md_swapin_ranlib_hdr(symdef_base, number_of_symdefs);
for (i = 0; i < number_of_symdefs; i++) {
md_swapin_ranlib_hdr(symdef_base, nsymdefs);
for (i = 0; i < nsymdefs; i++) {
register int index = symdef_base[i].ran_un.ran_strx;
if (index < 0 || index >= length_of_strings
|| (index && *(sym_name_base + index - 1)))
@ -224,7 +218,7 @@ symdef_library(desc, entry, member_length)
* symbols.
*/
for (i = 0; (i < number_of_symdefs &&
for (i = 0; (i < nsymdefs &&
((link_mode & FORCEARCHIVE) ||
undefined_global_sym_count ||
common_defined_global_count)); i++) {
@ -256,8 +250,9 @@ symdef_library(desc, entry, member_length)
* global common 'utime' linked to a function).
*/
if (!(link_mode & FORCEARCHIVE) &&
(!sp || sp->defined ||
(!sp->referenced && !sp->sorefs)) )
(!sp || sp->defined ||
(!(sp->flags & GS_REFERENCED) &&
!sp->sorefs)))
continue;
/*
@ -277,10 +272,11 @@ symdef_library(desc, entry, member_length)
entry, offset, &junk);
if (subentry == 0)
fatal(
"invalid offset for %s in symbol table of %s",
"invalid offset for %s in symbol table of %s",
sym_name_base
+ symdef_base[i].ran_un.ran_strx,
entry->filename);
read_entry_symbols(desc, subentry);
subentry->strings = (char *)
malloc(subentry->string_size);
@ -320,7 +316,7 @@ symdef_library(desc, entry, member_length)
* waste time on them.
*/
for (j = 0; j < number_of_symdefs; j++) {
for (j = 0; j < nsymdefs; j++) {
if (symdef_base[j].ran_off == offset)
symdef_base[j].ran_un.ran_strx = -1;
}
@ -343,7 +339,7 @@ symdef_library(desc, entry, member_length)
* DESC is the descriptor it is open on.
*/
void
static void
linear_library(desc, entry)
int desc;
struct file_entry *entry;
@ -354,11 +350,11 @@ linear_library(desc, entry)
while ((link_mode & FORCEARCHIVE) ||
undefined_global_sym_count || common_defined_global_count) {
int member_length;
register struct file_entry *subentry;
int member_length;
register struct file_entry *subentry;
subentry = decode_library_subfile(desc, entry, this_subfile_offset,
&member_length);
subentry = decode_library_subfile(desc, entry,
this_subfile_offset, &member_length);
if (!subentry)
return;
@ -395,7 +391,7 @@ linear_library(desc, entry)
* core, but not entered. Return nonzero if we ought to load this member.
*/
int
static int
subfile_wanted_p(entry)
struct file_entry *entry;
{
@ -408,9 +404,9 @@ subfile_wanted_p(entry)
for (lsp = entry->symbols; lsp < lspend; lsp++) {
register struct nlist *p = &lsp->nzlist.nlist;
register int type = p->n_type;
register char *name = p->n_un.n_strx + entry->strings;
register symbol *sp = getsym_soft(name);
register int type = p->n_type;
register char *name = p->n_un.n_strx + entry->strings;
register symbol *sp = getsym_soft(name);
/*
* If the symbol has an interesting definition, we could
@ -437,7 +433,7 @@ subfile_wanted_p(entry)
dollar_cond = 1;
if (!sp)
continue;
if (sp->referenced) {
if (sp->flags & SP_REFERENCED) {
if (write_map) {
print_file_name(entry, stdout);
fprintf(stdout, " needed due to $-conditional %s\n", name);
@ -461,7 +457,7 @@ subfile_wanted_p(entry)
* common reference (see explanation above in
* symdef_library()).
*/
if (sp->referenced && !sp->defined) {
if ((sp->flags & GS_REFERENCED) && !sp->defined) {
/*
* This is a symbol we are looking for. It
* is either not yet defined or defined as a
@ -482,11 +478,11 @@ subfile_wanted_p(entry)
* If it didn't used to be common, up
* the count of common symbols.
*/
if (!sp->max_common_size)
if (!sp->common_size)
common_defined_global_count++;
if (sp->max_common_size < p->n_value)
sp->max_common_size = p->n_value;
if (sp->common_size < p->n_value)
sp->common_size = p->n_value;
if (!sp->defined)
undefined_global_sym_count--;
sp->defined = type;
@ -498,22 +494,59 @@ subfile_wanted_p(entry)
}
return 1;
} else {
/*
* Check for undefined symbols or commons
* in shared objects.
*/
struct localsymbol *lsp;
int defs = 0;
int wascommon = sp->defined && sp->common_size;
int iscommon = type == (N_UNDF|N_EXT) && p->n_value;
if (wascommon) {
/*
* sp was defined as common by shared object.
*/
if (iscommon && p->n_value < sp->common_size)
sp->common_size = p->n_value;
continue;
}
/* Check for undefined symbols in shared objects */
if (sp->sorefs == NULL)
continue;
for (lsp = sp->sorefs; lsp; lsp = lsp->next) {
type = lsp->nzlist.nlist.n_type;
int type = lsp->nzlist.nlist.n_type;
if ( (type & N_EXT) &&
(type & N_STAB) == 0 &&
type != (N_UNDF | N_EXT))
break; /* We need it */
break; /* We don't need it */
}
if (lsp != NULL)
continue; /* We don't need it */
if (lsp != NULL) {
/* There's a real definition */
if (iscommon)
/*
* But this member wants it to be
* a common; ignore it.
continue;
}
if (iscommon) {
/*
* New symbol is common, just takes its
* size, but don't load.
*/
sp->common_size = p->n_value;
sp->defined = type;
continue;
}
/*
* THIS STILL MISSES the case where one shared
* object defines a common and the next defines
* more strongly; fix this someday by making
* `struct glosym' and enter_global_ref() more
* symmetric.
*/
if (write_map) {
print_file_name(entry, stdout);
@ -535,13 +568,13 @@ read_shared_object (desc, entry)
struct file_entry *entry;
int desc;
{
struct link_dynamic dyn;
struct link_dynamic_2 dyn2;
struct nlist *np;
struct nzlist *nzp;
int n, i, has_nz = 0;
struct _dynamic dyn;
struct section_dispatch_table sdt;
struct nlist *np;
struct nzlist *nzp;
int n, i, has_nz = 0;
if (!entry->header_read_flag)
if (!(entry->flags & E_HEADER_VALID))
read_header (desc, entry);
/* Read DYNAMIC structure (first in data segment) */
@ -552,10 +585,10 @@ read_shared_object (desc, entry)
fatal_with_file (
"premature eof in data segment of ", entry);
}
md_swapin_link_dynamic(&dyn);
md_swapin__dynamic(&dyn);
/* Check version */
switch (dyn.ld_version) {
switch (dyn.d_version) {
default:
fatal_with_file( "unsupported _DYNAMIC version ", entry);
break;
@ -566,26 +599,29 @@ read_shared_object (desc, entry)
break;
}
/* Read link_dynamic_2 struct (from data segment) */
/* Read Section Dispatch Table (from data segment) */
lseek (desc,
text_offset(entry) + dyn.ld_un.ld_2,
text_offset(entry) + (long)dyn.d_un.d_sdt -
(DATA_START(entry->header) - N_DATOFF(entry->header)),
L_SET);
if (read(desc, &dyn2, sizeof dyn2) != sizeof dyn2) {
if (read(desc, &sdt, sizeof sdt) != sizeof sdt) {
fatal_with_file( "premature eof in data segment of ", entry);
}
md_swapin_link_dynamic_2(&dyn2);
md_swapin_section_dispatch_table(&sdt);
/* Read symbols (text segment) */
n = dyn2.ld_strings - dyn2.ld_symbols;
n = sdt.sdt_strings - sdt.sdt_nzlist;
entry->nsymbols = n /
(has_nz ? sizeof(struct nzlist) : sizeof(struct nlist));
nzp = (struct nzlist *)(np = (struct nlist *) alloca (n));
entry->symbols = (struct localsymbol *)
xmalloc(entry->nsymbols * sizeof(struct localsymbol));
lseek(desc, text_offset (entry) + dyn2.ld_symbols, L_SET);
lseek(desc, text_offset(entry) + (long)sdt.sdt_nzlist -
(TEXT_START(entry->header) - N_TXTOFF(entry->header)),
L_SET);
if (read(desc, (char *)nzp, n) != n) {
fatal_with_file(
"premature eof while reading dyn syms ", entry);
"premature eof while reading object symbols ", entry);
}
if (has_nz)
md_swapin_zsymbols(nzp, entry->nsymbols);
@ -602,21 +638,21 @@ read_shared_object (desc, entry)
}
entry->symbols[i].symbol = NULL;
entry->symbols[i].next = NULL;
entry->symbols[i].entry = entry;
entry->symbols[i].gotslot_offset = -1;
entry->symbols[i].gotslot_claimed = 0;
entry->symbols[i].write = 0;
entry->symbols[i].is_L_symbol = 0;
entry->symbols[i].rename = 0;
entry->symbols[i].flags = 0;
}
/* Read strings (text segment) */
n = entry->string_size = dyn2.ld_str_sz;
n = entry->string_size = sdt.sdt_str_sz;
entry->strings = (char *) alloca(n);
entry->strings_offset = text_offset (entry) + dyn2.ld_strings;
lseek(desc, entry->strings_offset, L_SET);
entry->strings_offset = text_offset(entry) + sdt.sdt_strings;
lseek(desc, entry->strings_offset -
(TEXT_START(entry->header) - N_TXTOFF(entry->header)),
L_SET);
if (read(desc, entry->strings, n) != n) {
fatal_with_file(
"premature eof while reading dyn strings ", entry);
"premature eof while reading object strings ", entry);
}
enter_file_symbols (entry);
entry->strings = 0;
@ -624,39 +660,43 @@ read_shared_object (desc, entry)
/*
* Load any subsidiary shared objects.
*/
if (dyn2.ld_need) {
struct link_object lobj;
if (sdt.sdt_sods) {
struct sod sod;
off_t offset;
struct file_entry *subentry, *prev = NULL;
struct file_entry *prev = NULL;
subentry = (struct file_entry *)
xmalloc(sizeof(struct file_entry));
bzero(subentry, sizeof(struct file_entry));
subentry->superfile = entry;
offset = (off_t)dyn2.ld_need;
offset = (off_t)sdt.sdt_sods;
while (1) {
struct file_entry *subentry;
char *libname, name[MAXPATHLEN]; /*XXX*/
lseek(desc, offset, L_SET);
if (read(desc, &lobj, sizeof(lobj)) != sizeof(lobj)) {
subentry = (struct file_entry *)
xmalloc(sizeof(struct file_entry));
bzero(subentry, sizeof(struct file_entry));
subentry->superfile = entry;
lseek(desc, offset -
(TEXT_START(entry->header) - N_TXTOFF(entry->header)),
L_SET);
if (read(desc, &sod, sizeof(sod)) != sizeof(sod)) {
fatal_with_file(
"premature eof while reading link objects ",
"premature eof while reading sod ",
entry);
}
md_swapin_link_object(&lobj, 1);
(void)lseek(desc, (off_t)lobj.lo_name, L_SET);
md_swapin_sod(&sod, 1);
(void)lseek(desc, (off_t)sod.sod_name -
(TEXT_START(entry->header) - N_TXTOFF(entry->header)),
L_SET);
(void)read(desc, name, sizeof(name)); /*XXX*/
if (lobj.lo_library) {
int lo_major = lobj.lo_major;
int lo_minor = lobj.lo_minor;
if (sod.sod_library) {
int sod_major = sod.sod_major;
int sod_minor = sod.sod_minor;
libname = findshlib(name,
&lo_major, &lo_minor, 0);
&sod_major, &sod_minor, 0);
if (libname == NULL)
fatal("no shared -l%s.%d.%d available",
name, lobj.lo_major, lobj.lo_minor);
name, sod.sod_major, sod.sod_minor);
subentry->filename = libname;
subentry->local_sym_name = concat("-l", name, "");
} else {
@ -671,7 +711,7 @@ read_shared_object (desc, entry)
entry->subfiles = subentry;
prev = subentry;
desc = file_open(entry);
if ((offset = (off_t)lobj.lo_next) == 0)
if ((offset = (off_t)sod.sod_next) == 0)
break;
}
}
@ -719,7 +759,7 @@ read_shared_object (desc, entry)
subentry->superfile = entry;
subentry->filename = sa_name;
subentry->local_sym_name = sa_name;
subentry->library_flag = 1;
subentry->flags |= E_IS_LIBRARY;
search_library(file_open(subentry), subentry);
out:
;
@ -740,7 +780,7 @@ struct file_entry *p;
int major = -1, minor = -1;
char *cp, *fname = NULL;
if (p->search_dynamic_flag == 0)
if (!(p->flags & E_SEARCH_DYNAMIC))
goto dot_a;
fname = findshlib(p->filename, &major, &minor, 1);
@ -749,13 +789,13 @@ struct file_entry *p;
p->filename = fname;
p->lib_major = major;
p->lib_minor = minor;
p->search_dirs_flag = 0;
p->flags &= ~E_SEARCH_DIRS;
return desc;
}
free (fname);
dot_a:
p->search_dynamic_flag = 0;
p->flags &= ~E_SEARCH_DYNAMIC;
if (cp = strrchr(p->filename, '/')) {
*cp++ = '\0';
fname = concat(concat(p->filename, "/lib", cp), ".a", "");
@ -769,7 +809,7 @@ struct file_entry *p;
desc = open (string, O_RDONLY, 0);
if (desc > 0) {
p->filename = string;
p->search_dirs_flag = 0;
p->flags &= ~E_SEARCH_DIRS;
break;
}
free (string);

258
gnu/usr.bin/ld/rrs.c
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: rrs.c,v 1.9 1993/12/04 00:53:00 jkh Exp $
* $Id: rrs.c,v 1.10 1993/12/11 11:58:28 jkh Exp $
*/
#include <sys/param.h>
@ -48,9 +48,9 @@
#include "ld.h"
static struct link_dynamic rrs_dyn; /* defined in link.h */
static struct ld_debug rrs_ld_debug; /* defined in link.h */
static struct link_dynamic_2 rrs_dyn2; /* defined in link.h */
static struct _dynamic rrs_dyn; /* defined in link.h */
static struct so_debug rrs_so_debug; /* defined in link.h */
static struct section_dispatch_table rrs_sdt; /* defined in link.h */
static got_t *rrs_got;
static jmpslot_t *rrs_plt; /* defined in md.h */
static struct relocation_info *rrs_reloc;
@ -73,7 +73,7 @@ static int current_jmpslot_offset;
static int current_got_offset;
static int current_reloc_offset;
static int current_hash_index;
static int number_of_shobjs;
int number_of_shobjs;
struct shobj {
struct shobj *next;
@ -82,29 +82,29 @@ struct shobj {
/*
RRS text segment:
+-------------------+ <-- ld_rel (rrs_text_start)
+-------------------+ <-- sdt_rel (rrs_text_start)
| |
| relocation |
| |
+-------------------+ <-- <link_dynamic_2>.ld_hash
+-------------------+ <-- <sdt>.sdt_hash
| |
| hash buckets |
| |
+-------------------+ <-- <link_dynamic_2>.ld_stab
+-------------------+ <-- <sdt>.sdt_nzlist
| |
| symbols |
| |
+-------------------+ <-- <link_dynamic_2>.ld_strings
+-------------------+ <-- <sdt>.sdt_strings
| |
| strings |
| |
+-------------------+ <-- <link_dynamic_2>.ld_need
+-------------------+ <-- <sdt>.sdt_sods
| |
| shobjs |
| |
+-------------------+
| |
| shobjs strings | <-- <shobj>.lo_name
| shobjs strings | <-- <shobj>.sod_name
| |
+-------------------+
@ -113,21 +113,21 @@ RRS data segment:
+-------------------+ <-- __DYNAMIC (rrs_data_start)
| |
| link_dymamic |
| _dymamic |
| |
+-------------------+ <-- __DYNAMIC.ldd
+-------------------+ <-- __DYNAMIC.d_debug
| |
| ld_debug |
| so_debug |
| |
+-------------------+ <-- __DYNAMIC.ld_un.ld_2
+-------------------+ <-- __DYNAMIC.d_un.d_sdt
| |
| link_dymamic_2 |
| sdt |
| |
+-------------------+ <-- _GLOBAL_OFFSET_TABLE_ (ld_got)
+-------------------+ <-- _GLOBAL_OFFSET_TABLE_ (sdt_got)
| |
| _GOT_ |
| |
+-------------------+ <-- ld_plt
+-------------------+ <-- sdt_plt
| |
| PLT |
| |
@ -280,12 +280,12 @@ alloc_rrs_cpy_reloc(entry, sp)
struct file_entry *entry;
symbol *sp;
{
if (sp->cpyreloc_reserved)
if (sp->flags & GS_CPYRELOCRESERVED)
return;
#ifdef DEBUG
printf("alloc_rrs_copy: %s in %s\n", sp->name, get_file_name(entry));
#endif
sp->cpyreloc_reserved = 1;
sp->flags |= GS_CPYRELOCRESERVED;
reserved_rrs_relocs++;
}
@ -318,11 +318,11 @@ long *relocation;
{
struct relocation_info *r = rrs_next_reloc();
#ifdef DEBUG
if (rp->r_address < text_start + text_size)
error("%s: RRS text relocation at %#x for \"%s\"",
get_file_name(entry), rp->r_address, sp->name);
#ifdef DEBUG
printf("claim_rrs_reloc: %s in %s\n", sp->name, get_file_name(entry));
#endif
r->r_address = rp->r_address;
@ -354,8 +354,8 @@ long addend;
{
struct relocation_info *r;
if (sp->jmpslot_claimed)
return rrs_dyn2.ld_plt + sp->jmpslot_offset;
if (sp->flags & GS_JMPSLOTCLAIMED)
return rrs_sdt.sdt_plt + sp->jmpslot_offset;
#ifdef DEBUG
printf("claim_rrs_jmpslot: %s: %s(%d) -> offset %x (textreloc %#x)\n",
@ -375,30 +375,30 @@ printf("claim_rrs_jmpslot: %s: %s(%d) -> offset %x (textreloc %#x)\n",
sp->name, get_file_name(entry));
md_fix_jmpslot( rrs_plt + sp->jmpslot_offset/sizeof(jmpslot_t),
rrs_dyn2.ld_plt + sp->jmpslot_offset,
rrs_sdt.sdt_plt + sp->jmpslot_offset,
sp->value);
if (!JMPSLOT_NEEDS_RELOC) {
return rrs_dyn2.ld_plt + sp->jmpslot_offset;
return rrs_sdt.sdt_plt + sp->jmpslot_offset;
}
} else {
md_make_jmpslot( rrs_plt + sp->jmpslot_offset/sizeof(jmpslot_t),
md_make_jmpslot(rrs_plt + sp->jmpslot_offset/sizeof(jmpslot_t),
sp->jmpslot_offset,
claimed_rrs_relocs);
}
if (rrs_section_type == RRS_PARTIAL)
/* PLT is self-contained */
return rrs_dyn2.ld_plt + sp->jmpslot_offset;
return rrs_sdt.sdt_plt + sp->jmpslot_offset;
/*
* Install a run-time relocation for this PLT entry.
*/
r = rrs_next_reloc();
sp->jmpslot_claimed = 1;
sp->flags |= GS_JMPSLOTCLAIMED;
RELOC_SYMBOL(r) = sp->rrs_symbolnum;
r->r_address = (long)rrs_dyn2.ld_plt + sp->jmpslot_offset;
r->r_address = (long)rrs_sdt.sdt_plt + sp->jmpslot_offset;
if (link_mode & SYMBOLIC) {
RELOC_EXTERN_P(r) = 0;
@ -408,7 +408,7 @@ printf("claim_rrs_jmpslot: %s: %s(%d) -> offset %x (textreloc %#x)\n",
md_make_jmpreloc(rp, r, 0);
}
return rrs_dyn2.ld_plt + sp->jmpslot_offset;
return rrs_sdt.sdt_plt + sp->jmpslot_offset;
}
/*
@ -443,7 +443,7 @@ printf("claim_rrs_gotslot: %s(%d) slot offset %#x, addend %#x\n",
"internal error: %s: claim_rrs_gotslot: %s: gotslot_offset == -1\n",
get_file_name(entry), sp->name);
if (sp->gotslot_claimed)
if (sp->flags & GS_GOTSLOTCLAIMED)
/* This symbol already passed here before. */
return sp->gotslot_offset;
@ -497,8 +497,8 @@ printf("claim_rrs_gotslot: %s(%d) slot offset %#x, addend %#x\n",
* as no symbol need be looked up at run-time.
*/
r = rrs_next_reloc();
sp->gotslot_claimed = 1;
r->r_address = rrs_dyn2.ld_got + sp->gotslot_offset;
sp->flags |= GS_GOTSLOTCLAIMED;
r->r_address = rrs_sdt.sdt_got + sp->gotslot_offset;
RELOC_SYMBOL(r) = sp->rrs_symbolnum;
RELOC_EXTERN_P(r) = !(reloc_type == RELTYPE_RELATIVE);
md_make_gotreloc(rp, r, reloc_type);
@ -524,7 +524,7 @@ long addend;
addend += lsp->nzlist.nz_value;
if (!RELOC_STATICS_THROUGH_GOT_P(r))
return addend - rrs_dyn2.ld_got;
return addend - rrs_sdt.sdt_got;
#ifdef DEBUG
printf("claim_rrs_internal_gotslot: %s: slot offset %#x, addend = %#x\n",
@ -536,7 +536,7 @@ printf("claim_rrs_internal_gotslot: %s: slot offset %#x, addend = %#x\n",
"internal error: %s: claim_rrs_internal_gotslot at %#x: slot_offset == -1\n",
get_file_name(entry), RELOC_ADDRESS(rp));
if (lsp->gotslot_claimed)
if (lsp->flags & LS_GOTSLOTCLAIMED)
/* Already done */
return lsp->gotslot_offset;
@ -549,8 +549,8 @@ printf("claim_rrs_internal_gotslot: %s: slot offset %#x, addend = %#x\n",
* Relocation entry needed for this static GOT entry.
*/
r = rrs_next_reloc();
lsp->gotslot_claimed = 1;
r->r_address = rrs_dyn2.ld_got + lsp->gotslot_offset;
lsp->flags |= LS_GOTSLOTCLAIMED;
r->r_address = rrs_sdt.sdt_got + lsp->gotslot_offset;
RELOC_EXTERN_P(r) = 0;
md_make_gotreloc(rp, r, RELTYPE_RELATIVE);
return lsp->gotslot_offset;
@ -564,10 +564,10 @@ symbol *sp;
{
struct relocation_info *r;
if (sp->cpyreloc_claimed)
if (sp->flags & GS_CPYRELOCCLAIMED)
return;
if (!sp->cpyreloc_reserved)
if (!(sp->flags & GS_CPYRELOCRESERVED))
fatal("internal error: %s: claim_cpy_reloc: %s: no reservation\n",
get_file_name(entry), sp->name);
@ -577,7 +577,7 @@ printf("claim_rrs_copy: %s: %s -> %x\n",
#endif
r = rrs_next_reloc();
sp->cpyreloc_claimed = 1;
sp->flags |= GS_CPYRELOCCLAIMED;
r->r_address = rp->r_address;
RELOC_SYMBOL(r) = sp->rrs_symbolnum;
RELOC_EXTERN_P(r) = RELOC_EXTERN_P(rp);
@ -617,7 +617,7 @@ int index;
for (; *cp; cp++)
hashval = (hashval << 1) + *cp;
hashval = (hashval & 0x7fffffff) % rrs_dyn2.ld_buckets;
hashval = (hashval & 0x7fffffff) % rrs_sdt.sdt_buckets;
/* Get to the bucket */
hp = rrs_hashtab + hashval;
@ -651,11 +651,27 @@ void
consider_rrs_section_lengths()
{
int n;
struct shobj *shp;
struct shobj *shp, **shpp;
int symbolsize;
/* First, determine what of the RRS we want */
#ifdef notyet
/* We run into trouble with this as long as shared object symbols
are not checked for definitions */
/*
* First, determine the real number of shared objects we need.
*/
for (shpp = &rrs_shobjs; *shpp; shpp = &(*shpp)->next) {
while (*shpp && !((*shpp)->entry->flags & E_SYMBOLS_USED)) {
if (--number_of_shobjs < 0)
fatal("internal error: number_of_shobjs < 0");
*shpp = (*shpp)->next;
}
if (*shpp == NULL)
break;
}
#endif
/* First, determine what of the RRS we want */
if (relocatable_output)
rrs_section_type = RRS_NONE;
else if (link_mode & SHAREABLE)
@ -685,13 +701,14 @@ consider_rrs_section_lengths()
* from crt0), as this is the method used to determine whether the
* run-time linker must be called.
*/
if (!(link_mode & SHAREABLE) && !dynamic_symbol->referenced)
if (!(link_mode & SHAREABLE) &&
!(dynamic_symbol->flags & GS_REFERENCED))
fatal("No reference to __DYNAMIC");
dynamic_symbol->referenced = 1;
dynamic_symbol->flags |= GS_REFERENCED;
if (number_of_gotslots > 1)
got_symbol->referenced = 1;
got_symbol->flags |= GS_REFERENCED;
/* Next, allocate relocs, got and plt */
@ -722,7 +739,7 @@ consider_rrs_section_lengths()
*/
dynamic_symbol->rrs_symbolnum = number_of_rrs_symbols++;
FOR_EACH_SYMBOL(i ,sp) {
if (sp->referenced) {
if (sp->flags & GS_REFERENCED) {
rrs_strtab_size += 1 + strlen(sp->name);
if (sp != dynamic_symbol)
sp->rrs_symbolnum = number_of_rrs_symbols++;
@ -743,16 +760,16 @@ consider_rrs_section_lengths()
* Now that we know how many RRS symbols there are going to be,
* allocate and initialize the RRS symbol hash table.
*/
rrs_dyn2.ld_buckets = number_of_rrs_symbols/4;
if (rrs_dyn2.ld_buckets < 4)
rrs_dyn2.ld_buckets = 4;
rrs_sdt.sdt_buckets = number_of_rrs_symbols/4;
if (rrs_sdt.sdt_buckets < 4)
rrs_sdt.sdt_buckets = 4;
number_of_rrs_hash_entries = rrs_dyn2.ld_buckets + number_of_rrs_symbols;
number_of_rrs_hash_entries = rrs_sdt.sdt_buckets + number_of_rrs_symbols;
rrs_hashtab = (struct rrs_hash *)xmalloc(
number_of_rrs_hash_entries * sizeof(struct rrs_hash));
for (n = 0; n < rrs_dyn2.ld_buckets; n++)
for (n = 0; n < rrs_sdt.sdt_buckets; n++)
rrs_hashtab[n].rh_symbolnum = -1;
current_hash_index = rrs_dyn2.ld_buckets;
current_hash_index = rrs_sdt.sdt_buckets;
/*
* Get symbols into hash table now, so we can fine tune the size
@ -760,7 +777,7 @@ consider_rrs_section_lengths()
* to the number of hash link slots actually used.
*/
FOR_EACH_SYMBOL(i ,sp) {
if (sp->referenced)
if (sp->flags & GS_REFERENCED)
rrs_insert_hash(sp->name, sp->rrs_symbolnum);
} END_EACH_SYMBOL;
number_of_rrs_hash_entries = current_hash_index;
@ -768,9 +785,9 @@ consider_rrs_section_lengths()
/*
* Calculate RRS section sizes.
*/
rrs_data_size = sizeof(struct link_dynamic);
rrs_data_size += sizeof(struct ld_debug);
rrs_data_size += sizeof(struct link_dynamic_2);
rrs_data_size = sizeof(struct _dynamic);
rrs_data_size += sizeof(struct so_debug);
rrs_data_size += sizeof(struct section_dispatch_table);
rrs_data_size += number_of_gotslots * sizeof(got_t);
rrs_data_size += number_of_jmpslots * sizeof(jmpslot_t);
rrs_data_size = MALIGN(rrs_data_size);
@ -790,7 +807,7 @@ consider_rrs_section_lengths()
if (*name == '-' && *(name+1) == 'l')
name += 2;
rrs_text_size += sizeof(struct link_object);
rrs_text_size += sizeof(struct sod);
rrs_text_size += 1 + strlen(name);
}
@ -808,8 +825,8 @@ relocate_rrs_addresses()
return;
if (rrs_section_type == RRS_PARTIAL) {
got_symbol->value = rrs_dyn2.ld_got = rrs_data_start;
rrs_dyn2.ld_plt = rrs_dyn2.ld_got +
got_symbol->value = rrs_sdt.sdt_got = rrs_data_start;
rrs_sdt.sdt_plt = rrs_sdt.sdt_got +
number_of_gotslots * sizeof(got_t);
return;
}
@ -817,48 +834,48 @@ relocate_rrs_addresses()
/*
* RRS data relocations.
*/
rrs_dyn.ld_version = soversion;
rrs_dyn.ldd = (struct ld_debug *)
(rrs_data_start + sizeof(struct link_dynamic));
rrs_dyn.ld_un.ld_2 = (struct link_dynamic_2 *)
((long)rrs_dyn.ldd + sizeof(struct ld_debug));
rrs_dyn.d_version = soversion;
rrs_dyn.d_debug = (struct so_debug *)
(rrs_data_start + sizeof(struct _dynamic));
rrs_dyn.d_un.d_sdt = (struct section_dispatch_table *)
((long)rrs_dyn.d_debug + sizeof(struct so_debug));
rrs_dyn2.ld_got = (long)rrs_dyn.ld_un.ld_2 +
sizeof(struct link_dynamic_2);
rrs_dyn2.ld_plt = rrs_dyn2.ld_got + number_of_gotslots*sizeof(got_t);
rrs_sdt.sdt_got = (long)rrs_dyn.d_un.d_sdt +
sizeof(struct section_dispatch_table);
rrs_sdt.sdt_plt = rrs_sdt.sdt_got + number_of_gotslots*sizeof(got_t);
/*
* RRS text relocations.
*/
rrs_dyn2.ld_rel = rrs_text_start;
rrs_sdt.sdt_rel = rrs_text_start;
/*
* Sun BUG compatibility alert.
* Main program's RRS text values are relative to TXTADDR? WHY??
*/
#ifdef SUN_COMPAT
if (soversion == LD_VERSION_SUN && !(link_mode & SHAREABLE))
rrs_dyn2.ld_rel -= N_TXTADDR(outheader);
rrs_sdt.sdt_rel -= N_TXTADDR(outheader);
#endif
rrs_dyn2.ld_hash = rrs_dyn2.ld_rel +
rrs_sdt.sdt_hash = rrs_sdt.sdt_rel +
reserved_rrs_relocs * sizeof(struct relocation_info);
rrs_dyn2.ld_symbols = rrs_dyn2.ld_hash +
rrs_sdt.sdt_nzlist = rrs_sdt.sdt_hash +
number_of_rrs_hash_entries * sizeof(struct rrs_hash);
rrs_dyn2.ld_strings = rrs_dyn2.ld_symbols +
rrs_sdt.sdt_strings = rrs_sdt.sdt_nzlist +
number_of_rrs_symbols * rrs_symbol_size;
rrs_dyn2.ld_str_sz = rrs_strtab_size;
rrs_dyn2.ld_text_sz = text_size;
rrs_dyn2.ld_plt_sz = number_of_jmpslots * sizeof(jmpslot_t);
rrs_sdt.sdt_str_sz = rrs_strtab_size;
rrs_sdt.sdt_text_sz = text_size;
rrs_sdt.sdt_plt_sz = number_of_jmpslots * sizeof(jmpslot_t);
rrs_dyn2.ld_need = rrs_shobjs ? rrs_dyn2.ld_strings+rrs_strtab_size : 0;
rrs_dyn2.ld_stab_hash = 0;
rrs_dyn2.ld_rules = 0;
rrs_sdt.sdt_sods = rrs_shobjs ? rrs_sdt.sdt_strings+rrs_strtab_size : 0;
rrs_sdt.sdt_filler1 = 0;
rrs_sdt.sdt_filler2 = 0;
/*
* Assign addresses to _GLOBAL_OFFSET_TABLE_ and __DYNAMIC
* &__DYNAMIC is also in the first GOT entry.
*/
got_symbol->value = rrs_dyn2.ld_got;
got_symbol->value = rrs_sdt.sdt_got;
*rrs_got = dynamic_symbol->value = rrs_data_start;
@ -896,14 +913,14 @@ write_rrs_data()
return;
}
md_swapout_link_dynamic(&rrs_dyn);
mywrite(&rrs_dyn, 1, sizeof(struct link_dynamic), outdesc);
md_swapout__dynamic(&rrs_dyn);
mywrite(&rrs_dyn, 1, sizeof(struct _dynamic), outdesc);
md_swapout_ld_debug(&rrs_ld_debug);
mywrite(&rrs_ld_debug, 1, sizeof(struct ld_debug), outdesc);
md_swapout_so_debug(&rrs_so_debug);
mywrite(&rrs_so_debug, 1, sizeof(struct so_debug), outdesc);
md_swapout_link_dynamic_2(&rrs_dyn2);
mywrite(&rrs_dyn2, 1, sizeof(struct link_dynamic_2), outdesc);
md_swapout_section_dispatch_table(&rrs_sdt);
mywrite(&rrs_sdt, 1, sizeof(struct section_dispatch_table), outdesc);
md_swapout_got(rrs_got, number_of_gotslots);
mywrite(rrs_got, number_of_gotslots, sizeof(got_t), outdesc);
@ -921,7 +938,7 @@ write_rrs_text()
struct nzlist *nlp;
int offset = 0;
struct shobj *shp;
struct link_object *lo;
struct sod *sodp;
if (rrs_section_type == RRS_PARTIAL)
return;
@ -967,7 +984,7 @@ write_rrs_text()
*/
FOR_EACH_SYMBOL(i, sp) {
if (!sp->referenced || sp == dynamic_symbol)
if (!(sp->flags & GS_REFERENCED) || sp == dynamic_symbol)
continue;
if ((long)nlp - (long)rrs_symbols >=
@ -993,6 +1010,7 @@ write_rrs_text()
*/
nlp->nz_type = sp->alias->defined;
nlp->nz_value = sp->alias->value;
nlp->nz_other = N_OTHER(0, sp->alias->aux);
} else if (sp->defined == N_SIZE) {
/*
* Make sure this symbol isn't going
@ -1003,47 +1021,36 @@ write_rrs_text()
} else {
nlp->nz_type = sp->defined;
nlp->nz_value = sp->value;
nlp->nz_other = N_OTHER(0, sp->aux);
}
if (LD_VERSION_NZLIST_P(soversion))
nlp->nz_size = sp->size;
} else if (sp->max_common_size) {
} else if (sp->common_size) {
/*
* a common definition
*/
nlp->nz_type = N_UNDF | N_EXT;
nlp->nz_value = sp->max_common_size;
nlp->nz_value = sp->common_size;
} else if (!sp->defined) {
/* undefined */
nlp->nz_type = N_UNDF | N_EXT;
nlp->nz_value = 0;
if (sp->so_defined && sp->jmpslot_offset != -1) {
/*
* Define a "weak" function symbol.
*/
if (sp->aux != AUX_FUNC)
fatal("%s: non-function jmpslot",
sp->name);
nlp->nz_other = N_OTHER(0, sp->aux);
nlp->nz_value =
rrs_sdt.sdt_plt + sp->jmpslot_offset;
}
} else
fatal(
"internal error: %s defined in mysterious way",
sp->name);
/* Handle auxialiary type qualifiers */
switch (sp->aux) {
case 0:
break;
case RRS_FUNC:
if (sp->so_defined != (N_TEXT+N_EXT))
fatal("internal error: %s: other but not text",
sp->name);
if (sp->jmpslot_offset == -1)
fatal(
"internal error: %s has no jmpslot but other",
sp->name);
nlp->nz_other = sp->aux;
nlp->nz_value =
rrs_dyn2.ld_plt + sp->jmpslot_offset;
break;
default:
fatal(
"internal error: %s: unsupported other value: %x",
sp->name, sp->aux);
break;
}
/* Set symbol's name */
nlp->nz_strx = offset;
strcpy(rrs_strtab + offset, sp->name);
@ -1089,9 +1096,8 @@ write_rrs_text()
/*
* Write the names of the shared objects needed at run-time
*/
pos = rrs_dyn2.ld_need + number_of_shobjs * sizeof(struct link_object);
lo = (struct link_object *)alloca(
number_of_shobjs * sizeof(struct link_object));
pos = rrs_sdt.sdt_sods + number_of_shobjs * sizeof(struct sod);
sodp = (struct sod *)alloca( number_of_shobjs * sizeof(struct sod));
for (i = 0, shp = rrs_shobjs; shp; i++, shp = shp->next) {
char *name = shp->entry->local_sym_name;
@ -1100,27 +1106,27 @@ write_rrs_text()
fatal("internal error: # of link objects exceeds %d",
number_of_shobjs);
lo[i].lo_name = pos;
lo[i].lo_major = shp->entry->lib_major;
lo[i].lo_minor = shp->entry->lib_minor;
sodp[i].sod_name = pos;
sodp[i].sod_major = shp->entry->lib_major;
sodp[i].sod_minor = shp->entry->lib_minor;
if (*name == '-' && *(name+1) == 'l') {
name += 2;
lo[i].lo_library = 1;
sodp[i].sod_library = 1;
} else
lo[i].lo_library = 0;
sodp[i].sod_library = 0;
pos += 1 + strlen(name);
lo[i].lo_next = (i == number_of_shobjs - 1) ? 0 :
(rrs_dyn2.ld_need + (i+1)*sizeof(struct link_object));
sodp[i].sod_next = (i == number_of_shobjs - 1) ? 0 :
(rrs_sdt.sdt_sods + (i+1)*sizeof(struct sod));
}
if (i < number_of_shobjs)
fatal("internal error: # of link objects less then expected %d",
number_of_shobjs);
md_swapout_link_object(lo, number_of_shobjs);
mywrite(lo, number_of_shobjs, sizeof(struct link_object), outdesc);
md_swapout_sod(sodp, number_of_shobjs);
mywrite(sodp, number_of_shobjs, sizeof(struct sod), outdesc);
for (i = 0, shp = rrs_shobjs; shp; i++, shp = shp->next) {
char *name = shp->entry->local_sym_name;

20
gnu/usr.bin/ld/rtld/Makefile
View file

@ -1,25 +1,25 @@
# $Id: Makefile,v 1.7 1993/12/11 21:05:59 jkh Exp $
# $Id: Makefile,v 1.8 1994/01/28 21:01:20 pk Exp $
PROG= ld.so
SRCS= mdprologue.S sbrk.c rtld.c shlib.c etc.c md.c
SRCS= mdprologue.S rtld.c malloc.c shlib.c etc.c md.c
NOMAN= noman
LDDIR?= $(.CURDIR)/..
#PICFLAG=-pic
PICFLAG=-fpic
CFLAGS += -I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) -O $(PICFLAG) -DRTLD
LDFLAGS = -Bshareable -Bsymbolic -assert nosymbolic -Z
LIBS = -lc_pic -lgcc_pic
CFLAGS+=-I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) $(PICFLAG) -DRTLD
LDFLAGS+=-Bshareable -Bsymbolic -assert nosymbolic
ASFLAGS+=-k
LDADD+= -lc_pic
BINDIR= /usr/libexec
ASFLAGS = -k
.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)
.SUFFIXES: .S
.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)
$(PROG):
$(LD) -o $(PROG) $(LDFLAGS) $(OBJS) $(LIBS) $(LDADD)
$(LD) -o $(PROG) $(LDFLAGS) $(OBJS) $(LDADD)
.S.o:
$(CPP) $(.IMPSRC) | $(AS) $(ASFLAGS) -o $(.TARGET) -
${CPP} ${.IMPSRC} | ${AS} ${ASFLAGS} -o ${.TARGET} -
.include <bsd.prog.mk>

1126
gnu/usr.bin/ld/rtld/rtld.c
View file

File diff suppressed because it is too large Load diff

40
gnu/usr.bin/ld/shlib.c
View file

@ -1,5 +1,33 @@
/*
* $Id: shlib.c,v 1.6 1993/12/11 11:58:29 jkh Exp $
* Copyright (c) 1993 Paul Kranenburg
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: shlib.c,v 1.9 1994/01/29 02:03:15 jtc Exp $
*/
#include <sys/param.h>
@ -25,14 +53,20 @@ char *strsep();
* Standard directories to search for files specified by -l.
*/
#ifndef STANDARD_SEARCH_DIRS
#define STANDARD_SEARCH_DIRS "/usr/lib"
#define STANDARD_SEARCH_DIRS "/usr/lib", "/usr/X386/lib", "/usr/local/lib"
#endif
/*
* Actual vector of library search directories,
* including `-L'ed and LD_LIBARAY_PATH spec'd ones.
*/
char **search_dirs;
int n_search_dirs;
char *standard_search_dirs[] = {
STANDARD_SEARCH_DIRS
};
int n_search_dirs;
void
add_search_dir(name)

76
gnu/usr.bin/ld/sparc/md.c
View file

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: md.c,v 1.6 1993/12/08 10:29:02 pk Exp $
* $Id: md.c,v 1.6 1993/12/11 12:02:10 jkh Exp $
*/
#include <sys/param.h>
@ -109,6 +109,7 @@ int relocatable_output;
{
register unsigned long mask;
#ifndef RTLD
if (relocatable_output) {
/*
* Non-PC relative relocations which are absolute or
@ -129,6 +130,7 @@ int relocatable_output;
RELOC_ADD_EXTRA(r) -= pc_relocation;
return;
}
#endif
relocation >>= RELOC_VALUE_RIGHTSHIFT(r);
@ -167,33 +169,7 @@ int relocatable_output;
}
}
/*
* Initialize (output) exec header such that useful values are
* obtained from subsequent N_*() macro evaluations.
*/
void
md_init_header(hp, magic, flags)
struct exec *hp;
int magic, flags;
{
#ifdef NetBSD
N_SETMAGIC((*hp), magic, MID_MACHINE, flags);
/* TEXT_START depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = PAGSIZ;
#else
hp->a_magic = magic;
hp->a_machtype = M_SPARC;
hp->a_toolversion = 1;
hp->a_dynamic = ((flags) & EX_DYNAMIC);
/* SunOS 4.1 N_TXTADDR depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = N_PAGSIZ(*hp);
#endif
}
#ifndef RTLD
/*
* Machine dependent part of claim_rrs_reloc().
* On the Sparc the relocation offsets are stored in the r_addend member.
@ -224,6 +200,7 @@ int type;
return 1;
}
#endif
/*
* Set up a transfer from jmpslot at OFFSET (relative to the PLT table)
@ -327,3 +304,46 @@ long *savep;
*(long *)where = TRAP;
}
#ifndef RTLD
/*
* Initialize (output) exec header such that useful values are
* obtained from subsequent N_*() macro evaluations.
*/
void
md_init_header(hp, magic, flags)
struct exec *hp;
int magic, flags;
{
#ifdef NetBSD
N_SETMAGIC((*hp), magic, MID_MACHINE, flags);
/* TEXT_START depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = PAGSIZ;
#else
hp->a_magic = magic;
hp->a_machtype = M_SPARC;
hp->a_toolversion = 1;
hp->a_dynamic = ((flags) & EX_DYNAMIC);
/* SunOS 4.1 N_TXTADDR depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = N_PAGSIZ(*hp);
#endif
}
/*
* Check for acceptable foreign machine Ids
*/
int
md_midcompat(hp)
struct exec *hp;
{
#ifdef NetBSD
#define SUN_M_SPARC 3
return (((md_swap_long(hp->a_midmag)&0x00ff0000) >> 16) == SUN_M_SPARC);
#else
return hp->a_machtype == M_SPARC;
#endif
}
#endif /* RTLD */

65
gnu/usr.bin/ld/sparc/md.h
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: md.h,v 1.3 1993/11/22 19:05:31 jkh Exp $
* $Id: md.h,v 1.5 1993/12/02 01:03:47 jkh Exp $
*/
/*
@ -44,6 +44,13 @@
MID_MACHINE, N_GETFLAG(ex)|(f))
#define N_IS_DYNAMIC(ex) ((N_GETFLAG(ex) & EX_DYNAMIC))
/*
* Should be handled by a.out.h ?
*/
#define N_ADJUST(ex) (((ex).a_entry < PAGSIZ) ? -PAGSIZ : 0)
#define TEXT_START(ex) (N_TXTADDR(ex) + N_ADJUST(ex))
#define DATA_START(ex) (N_DATADDR(ex) + N_ADJUST(ex))
#else
/* Get the SunOS a.out and relocation nomenclature */
@ -60,6 +67,10 @@
#define r_symbolnum r_index
#endif /* NetBSD */
#define N_BADMID(ex) \
(N_GETMID(ex) != 0 && N_GETMID(ex) != MID_MACHINE && \
!md_midcompat(&(ex)))
/* Sparc (Sun 4) macros */
#define RELOC_ADDRESS(r) ((r)->r_address)
#define RELOC_EXTERN_P(r) ((r)->r_extern)
@ -139,16 +150,16 @@ typedef struct jmpslot {
#define md_swapout_zsymbols(s,n)
#define md_swapin_reloc(r,n)
#define md_swapout_reloc(r,n)
#define md_swapin_link_dynamic(l)
#define md_swapout_link_dynamic(l)
#define md_swapin_link_dynamic_2(l)
#define md_swapout_link_dynamic_2(l)
#define md_swapin_ld_debug(d)
#define md_swapout_ld_debug(d)
#define md_swapin__dynamic(l)
#define md_swapout__dynamic(l)
#define md_swapin_section_dispatch_table(l)
#define md_swapout_section_dispatch_table(l)
#define md_swapin_so_debug(d)
#define md_swapout_so_debug(d)
#define md_swapin_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n)
#define md_swapin_link_object(l,n)
#define md_swapout_link_object(l,n)
#define md_swapin_sod(l,n)
#define md_swapout_sod(l,n)
#define md_swapout_jmpslot(j,n)
#define md_swapout_got(g,n)
#define md_swapin_ranlib_hdr(h,n)
@ -168,23 +179,23 @@ void md_swapin_reloc __P((struct relocation_info *, int));
void md_swapout_reloc __P((struct relocation_info *, int));
void md_swapout_jmpslot __P((jmpslot_t *, int));
#define md_swapin_symbols(s,n) swap_symbols(s,n)
#define md_swapout_symbols(s,n) swap_symbols(s,n)
#define md_swapin_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapout_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapin_link_dynamic(l) swap_link_dynamic(l)
#define md_swapout_link_dynamic(l) swap_link_dynamic(l)
#define md_swapin_link_dynamic_2(l) swap_link_dynamic_2(l)
#define md_swapout_link_dynamic_2(l) swap_link_dynamic_2(l)
#define md_swapin_ld_debug(d) swap_ld_debug(d)
#define md_swapout_ld_debug(d) swap_ld_debug(d)
#define md_swapin_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapin_link_object(l,n) swapin_link_object(l,n)
#define md_swapout_link_object(l,n) swapout_link_object(l,n)
#define md_swapout_got(g,n) swap_longs((long*)(g),n)
#define md_swapin_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapout_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapin_symbols(s,n) swap_symbols(s,n)
#define md_swapout_symbols(s,n) swap_symbols(s,n)
#define md_swapin_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapout_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapin__dynamic(l) swap__dynamic(l)
#define md_swapout__dynamic(l) swap__dynamic(l)
#define md_swapin_section_dispatch_table(l) swap_section_dispatch_table(l)
#define md_swapout_section_dispatch_table(l) swap_section_dispatch_table(l)
#define md_swapin_so_debug(d) swap_so_debug(d)
#define md_swapout_so_debug(d) swap_so_debug(d)
#define md_swapin_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapin_sod(l,n) swapin_sod(l,n)
#define md_swapout_sod(l,n) swapout_sod(l,n)
#define md_swapout_got(g,n) swap_longs((long*)(g),n)
#define md_swapin_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapout_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swap_short(x) ( (((x) >> 8) & 0xff) | (((x) & 0xff) << 8) )

4
gnu/usr.bin/ld/sparc/mdprologue.S
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: mdprologue.S,v 1.1 1993/10/16 21:54:36 pk Exp $
* $Id: mdprologue.S,v 1.2 1993/11/09 04:19:36 paul Exp $
*/
/*

70
gnu/usr.bin/ld/symbol.c
View file

@ -1,5 +1,5 @@
/*
* $Id: symbol.c,v 1.2 1993/11/09 04:19:04 paul Exp $ - symbol table routines
* $Id: symbol.c,v 1.3 1993/11/22 19:04:45 jkh Exp $ - symbol table routines
*/
/* Create the symbol table entries for `etext', `edata' and `end'. */
@ -15,6 +15,15 @@
#include "ld.h"
symbol *symtab[SYMTABSIZE]; /* The symbol table. */
int num_hash_tab_syms; /* Number of symbols in symbol hash table. */
symbol *edata_symbol; /* the symbol _edata */
symbol *etext_symbol; /* the symbol _etext */
symbol *end_symbol; /* the symbol _end */
symbol *got_symbol; /* the symbol __GLOBAL_OFFSET_TABLE_ */
symbol *dynamic_symbol; /* the symbol __DYNAMIC */
void
symtab_init (relocatable_output)
int relocatable_output;
@ -22,36 +31,40 @@ int relocatable_output;
/*
* Put linker reserved symbols into symbol table.
*/
#ifndef nounderscore
#define ETEXT_SYM "_etext"
#define EDATA_SYM "_edata"
#define END_SYM "_end"
#define DYN_SYM "__DYNAMIC"
#define GOT_SYM "__GLOBAL_OFFSET_TABLE_"
#else
#define ETEXT_SYM "etext"
#define EDATA_SYM "edata"
#define END_SYM "end"
#define DYN_SYM "_DYNAMIC"
#define GOT_SYM "_GLOBAL_OFFSET_TABLE_"
#endif
dynamic_symbol = getsym ("__DYNAMIC");
dynamic_symbol = getsym (DYN_SYM);
dynamic_symbol->defined = relocatable_output?N_UNDF:(N_DATA | N_EXT);
dynamic_symbol->referenced = 0;
dynamic_symbol->value = 0;
got_symbol = getsym ("__GLOBAL_OFFSET_TABLE_");
got_symbol = getsym (GOT_SYM);
got_symbol->defined = N_DATA | N_EXT;
got_symbol->referenced = 0;
got_symbol->value = 0;
if (relocatable_output)
return;
#ifndef nounderscore
edata_symbol = getsym ("_edata");
etext_symbol = getsym ("_etext");
end_symbol = getsym ("_end");
#else
edata_symbol = getsym ("edata");
etext_symbol = getsym ("etext");
end_symbol = getsym ("end");
#endif
edata_symbol->defined = N_DATA | N_EXT;
etext_symbol = getsym (ETEXT_SYM);
edata_symbol = getsym (EDATA_SYM);
end_symbol = getsym (END_SYM);
etext_symbol->defined = N_TEXT | N_EXT;
edata_symbol->defined = N_DATA | N_EXT;
end_symbol->defined = N_BSS | N_EXT;
edata_symbol->referenced = 1;
etext_symbol->referenced = 1;
end_symbol->referenced = 1;
etext_symbol->flags |= GS_REFERENCED;
edata_symbol->flags |= GS_REFERENCED;
end_symbol->flags |= GS_REFERENCED;
}
/* Compute the hash code for symbol name KEY. */
@ -82,7 +95,7 @@ getsym(key)
register symbol *bp;
/* Determine the proper bucket. */
hashval = hash_string (key) % TABSIZE;
hashval = hash_string (key) % SYMTABSIZE;
/* Search the bucket. */
for (bp = symtab[hashval]; bp; bp = bp->link)
@ -91,17 +104,15 @@ getsym(key)
/* Nothing was found; create a new symbol table entry. */
bp = (symbol *) xmalloc (sizeof (symbol));
bp->refs = 0;
bp->name = (char *) xmalloc (strlen (key) + 1);
strcpy (bp->name, key);
bp->refs = 0;
bp->defined = 0;
bp->referenced = 0;
bp->trace = 0;
bp->value = 0;
bp->max_common_size = 0;
bp->common_size = 0;
bp->warning = 0;
bp->undef_refs = 0;
bp->multiply_defined = 0;
bp->mult_defs = 0;
bp->alias = 0;
bp->setv_count = 0;
bp->symbolnum = 0;
@ -114,10 +125,7 @@ getsym(key)
bp->def_nlist = 0;
bp->jmpslot_offset = -1;
bp->gotslot_offset = -1;
bp->jmpslot_claimed = 0;
bp->gotslot_claimed = 0;
bp->cpyreloc_reserved = 0;
bp->cpyreloc_claimed = 0;
bp->flags = 0;
/* Add the entry to the bucket. */
bp->link = symtab[hashval];
@ -139,7 +147,7 @@ getsym_soft (key)
/* Determine which bucket. */
hashval = hash_string (key) % TABSIZE;
hashval = hash_string (key) % SYMTABSIZE;
/* Search the bucket. */

58
gnu/usr.bin/ld/warnings.c
View file

@ -1,5 +1,5 @@
/*
* $Id: warnings.c,v 1.4 1993/12/22 23:28:12 jkh Exp $
* $Id: warnings.c,v 1.5 1994/01/12 23:14:07 jkh Exp $
*/
#include <sys/param.h>
@ -47,6 +47,10 @@ print_file_name (entry, outfile)
struct file_entry *entry;
FILE *outfile;
{
if (entry == NULL) {
fprintf (outfile, "NULL");
}
if (entry->superfile) {
print_file_name (entry->superfile, outfile);
fprintf (outfile, "(%s)", entry->filename);
@ -65,7 +69,7 @@ get_file_name (entry)
char *result, *supfile;
if (entry == NULL) {
return (xmalloc("NULL"));
return (char *)strdup("NULL");
}
if (entry->superfile) {
@ -155,30 +159,24 @@ void
print_symbols(outfile)
FILE *outfile;
{
register int i;
fprintf(outfile, "\nFiles:\n\n");
each_file(describe_file_sections, outfile);
fprintf(outfile, "\nGlobal symbols:\n\n");
for (i = 0; i < TABSIZE; i++) {
register symbol *sp;
for (sp = symtab[i]; sp; sp = sp->link) {
if (sp->defined == (N_UNDF|N_EXT))
fprintf(outfile, " %s: common, length %#x\n",
sp->name, sp->max_common_size);
if (!sp->referenced)
fprintf(outfile, " %s: unreferenced\n",
sp->name);
else if (!sp->defined)
fprintf(outfile, " %s: undefined\n", sp->name);
else
fprintf(outfile, " %s: %#x, size %#x\n",
FOR_EACH_SYMBOL(i, sp) {
if (sp->defined == (N_UNDF|N_EXT))
fprintf(outfile, " %s: common, length %#x\n",
sp->name, sp->common_size);
if (!(sp->flags & GS_REFERENCED))
fprintf(outfile, " %s: unreferenced\n", sp->name);
else if (sp->so_defined)
fprintf(outfile, " %s: sodefined\n", sp->name);
else if (!sp->defined)
fprintf(outfile, " %s: undefined\n", sp->name);
else
fprintf(outfile, " %s: %#x, size %#x\n",
sp->name, sp->value, sp->size);
}
}
} END_EACH_SYMBOL;
each_file(list_file_locals, outfile);
}
@ -190,7 +188,7 @@ describe_file_sections(entry, outfile)
{
fprintf(outfile, " ");
print_file_name(entry, outfile);
if (entry->just_syms_flag || entry->is_dynamic)
if (entry->flags & (E_JUST_SYMS | E_DYNAMIC))
fprintf(outfile, " symbols only\n", 0);
else
fprintf(outfile, " text %x(%x), data %x(%x), bss %x(%x) hex\n",
@ -602,7 +600,7 @@ do_file_warnings (entry, outfile)
read_entry_strings (desc, entry);
}
if (! entry->is_dynamic) {
if (!(entry->flags & E_DYNAMIC)) {
/* Do text warnings based on a scan through the relocation info. */
do_relocation_warnings (entry, 0, outfile, nlist_bitvector);
@ -618,7 +616,7 @@ do_file_warnings (entry, outfile)
for (i = 0; i < number_of_syms; i++) {
struct nlist *s;
struct glosym *g;
symbol *g;
g = entry->symbols[i].symbol;
s = &entry->symbols[i].nzlist.nlist;
@ -626,14 +624,14 @@ do_file_warnings (entry, outfile)
if (!(s->n_type & N_EXT))
continue;
if (!g->referenced) {
if (!(g->flags & GS_REFERENCED)) {
#if 0
/* Check for undefined shobj symbols */
struct localsymbol *lsp;
register int type;
for (lsp = g->dynrefs; lsp; lsp = lsp->next) {
type = lsp->nlist.n_type;
for (lsp = g->sorefs; lsp; lsp = lsp->next) {
type = lsp->nzlist.nz_type;
if ((type & N_EXT) &&
type != (N_UNDF | N_EXT)) {
break;
@ -651,7 +649,7 @@ do_file_warnings (entry, outfile)
dont_allow_symbol_name = 0;
if (list_multiple_defs && g->multiply_defined) {
if (list_multiple_defs && g->mult_defs) {
errfmt = "Definition of symbol %s (multiply defined)";
switch (s->n_type) {
@ -669,13 +667,13 @@ do_file_warnings (entry, outfile)
case N_SETT | N_EXT:
case N_SETD | N_EXT:
case N_SETB | N_EXT:
if (g->multiply_defined == 2)
if (g->mult_defs == 2)
continue;
errfmt = "First set element definition of symbol %s (multiply defined)";
break;
default:
printf("Multiple def: %s, type %#x\n", g->name, s->n_type);
printf("multiply defined: %s, type %#x\n", g->name, s->n_type);
/* Don't print out multiple defs at references.*/
continue;
}

65
gnu/usr.bin/ld/xbits.c
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: xbits.c,v 1.1 1993/10/16 21:52:37 pk Exp $
* $Id: xbits.c,v 1.2 1993/11/09 04:19:08 paul Exp $
*/
/*
@ -96,60 +96,61 @@ int n;
}
void
swap_link_dynamic(dp)
struct link_dynamic *dp;
swap__dynamic(dp)
struct _dynamic *dp;
{
dp->ld_version = md_swap_long(dp->ld_version);
dp->ldd = (struct ld_debug *)md_swap_long((long)dp->ldd);
dp->ld_un.ld_2 = (struct link_dynamic_2 *)md_swap_long((long)dp->ld_un.ld_2);
dp->ld_entry = (struct ld_entry *)md_swap_long((long)dp->ld_entry);
dp->d_version = md_swap_long(dp->d_version);
dp->d_debug = (struct so_debug *)md_swap_long((long)dp->d_debug);
dp->d_un.d_sdt = (struct section_dispatch_table *)
md_swap_long((long)dp->d_un.d_sdt);
dp->d_entry = (struct ld_entry *)md_swap_long((long)dp->d_entry);
}
void
swap_link_dynamic_2(ldp)
struct link_dynamic_2 *ldp;
swap_section_dispatch_table(sdp)
struct section_dispatch_table *sdp;
{
swap_longs((long *)ldp, sizeof(*ldp)/sizeof(long));
swap_longs((long *)sdp, sizeof(*sdp)/sizeof(long));
}
void
swap_ld_debug(lddp)
struct ld_debug *lddp;
swap_so_debug(ddp)
struct so_debug *ddp;
{
swap_longs((long *)lddp, sizeof(*lddp)/sizeof(long));
swap_longs((long *)ddp, sizeof(*ddp)/sizeof(long));
}
void
swapin_link_object(lop, n)
struct link_object *lop;
swapin_sod(sodp, n)
struct sod *sodp;
int n;
{
unsigned long bits;
for (; n; n--, lop++) {
lop->lo_name = md_swap_long(lop->lo_name);
lop->lo_major = md_swap_short(lop->lo_major);
lop->lo_minor = md_swap_short(lop->lo_minor);
lop->lo_next = md_swap_long(lop->lo_next);
bits = ((unsigned long *)lop)[1];
lop->lo_library = ((bits >> 24) & 1);
for (; n; n--, sodp++) {
sodp->sod_name = md_swap_long(sodp->sod_name);
sodp->sod_major = md_swap_short(sodp->sod_major);
sodp->sod_minor = md_swap_short(sodp->sod_minor);
sodp->sod_next = md_swap_long(sodp->sod_next);
bits = ((unsigned long *)sodp)[1];
sodp->sod_library = ((bits >> 24) & 1);
}
}
void
swapout_link_object(lop, n)
struct link_object *lop;
swapout_sod(sodp, n)
struct sod *sodp;
int n;
{
unsigned long bits;
for (; n; n--, lop++) {
lop->lo_name = md_swap_long(lop->lo_name);
lop->lo_major = md_swap_short(lop->lo_major);
lop->lo_minor = md_swap_short(lop->lo_minor);
lop->lo_next = md_swap_long(lop->lo_next);
bits = (unsigned long)(lop->lo_library) << 24;
((unsigned long *)lop)[1] = bits;
for (; n; n--, sodp++) {
sodp->sod_name = md_swap_long(sodp->sod_name);
sodp->sod_major = md_swap_short(sodp->sod_major);
sodp->sod_minor = md_swap_short(sodp->sod_minor);
sodp->sod_next = md_swap_long(sodp->sod_next);
bits = (unsigned long)(sodp->sod_library) << 24;
((unsigned long *)sodp)[1] = bits;
}
}

20
libexec/rtld-aout/Makefile
View file

@ -1,25 +1,25 @@
# $Id: Makefile,v 1.7 1993/12/11 21:05:59 jkh Exp $
# $Id: Makefile,v 1.8 1994/01/28 21:01:20 pk Exp $
PROG= ld.so
SRCS= mdprologue.S sbrk.c rtld.c shlib.c etc.c md.c
SRCS= mdprologue.S rtld.c malloc.c shlib.c etc.c md.c
NOMAN= noman
LDDIR?= $(.CURDIR)/..
#PICFLAG=-pic
PICFLAG=-fpic
CFLAGS += -I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) -O $(PICFLAG) -DRTLD
LDFLAGS = -Bshareable -Bsymbolic -assert nosymbolic -Z
LIBS = -lc_pic -lgcc_pic
CFLAGS+=-I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) $(PICFLAG) -DRTLD
LDFLAGS+=-Bshareable -Bsymbolic -assert nosymbolic
ASFLAGS+=-k
LDADD+= -lc_pic
BINDIR= /usr/libexec
ASFLAGS = -k
.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)
.SUFFIXES: .S
.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)
$(PROG):
$(LD) -o $(PROG) $(LDFLAGS) $(OBJS) $(LIBS) $(LDADD)
$(LD) -o $(PROG) $(LDFLAGS) $(OBJS) $(LDADD)
.S.o:
$(CPP) $(.IMPSRC) | $(AS) $(ASFLAGS) -o $(.TARGET) -
${CPP} ${.IMPSRC} | ${AS} ${ASFLAGS} -o ${.TARGET} -
.include <bsd.prog.mk>

4
libexec/rtld-aout/i386/md-static-funcs.c
View file

@ -1,8 +1,10 @@
/*
* $Id: md-static-funcs.c,v 1.2 1993/12/08 10:14:44 pk Exp $
*
* Called by ld.so when onanating.
* This *must* be a static function, so it is not called through a jmpslot.
*/
static void
md_relocate_simple(r, relocation, addr)
struct relocation_info *r;

65
libexec/rtld-aout/i386/md.c
View file

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: md.c,v 1.7 1994/01/03 18:35:35 davidg Exp $
* $Id: md.c,v 1.8 1994/01/19 15:00:37 davidg Exp $
*/
#include <sys/param.h>
@ -41,8 +41,6 @@
#include "ld.h"
int netzmagic = 0;
/*
* Get relocation addend corresponding to relocation record RP
* from address ADDR
@ -89,29 +87,6 @@ unsigned char *addr;
}
}
/*
* Initialize (output) exec header such that useful values are
* obtained from subsequent N_*() macro evaluations.
*/
void
md_init_header(hp, magic, flags)
struct exec *hp;
int magic, flags;
{
if (!netzmagic && (magic == ZMAGIC)) {
hp->a_midmag = magic;
} else {
if (netzmagic)
N_SETMAGIC_NET((*hp), magic, MID_I386, flags);
else
N_SETMAGIC((*hp), magic, MID_I386, flags);
}
/* TEXT_START depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = PAGSIZ;
}
/*
* Machine dependent part of claim_rrs_reloc().
* Set RRS relocation type.
@ -251,8 +226,44 @@ long *savep;
*(char *)where = TRAP;
}
#ifdef NEED_SWAP
#ifndef RTLD
#ifdef FreeBSD
int netzmagic;
#endif
/*
* Initialize (output) exec header such that useful values are
* obtained from subsequent N_*() macro evaluations.
*/
void
md_init_header(hp, magic, flags)
struct exec *hp;
int magic, flags;
{
#ifdef NetBSD
if (oldmagic || magic == QMAGIC)
hp->a_midmag = magic;
else
N_SETMAGIC((*hp), magic, MID_I386, flags);
#endif
#ifdef FreeBSD
if (oldmagic)
hp->a_midmag = magic;
else if (netzmagic)
N_SETMAGIC_NET((*hp), magic, MID_I386, flags);
else
N_SETMAGIC((*hp), magic, MID_I386, flags);
#endif
/* TEXT_START depends on the value of outheader.a_entry. */
if (!(link_mode & SHAREABLE)) /*WAS: if (entry_symbol) */
hp->a_entry = PAGSIZ;
}
#endif /* RTLD */
#ifdef NEED_SWAP
/*
* Byte swap routines for cross-linking.
*/

98
libexec/rtld-aout/i386/md.h
View file

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: md.h,v 1.7 1994/01/03 18:35:36 davidg Exp $
* $Id: md.h,v 1.8 1994/01/19 15:00:37 davidg Exp $
*/
@ -45,17 +45,41 @@
#define PAGSIZ 4096
#endif
#define N_SET_FLAG(ex,f) (netzmagic ? \
N_SETMAGIC_NET(ex,N_GETMAGIC_NET(ex), MID_MACHINE, \
N_GETFLAG_NET(ex)|(f)) : \
N_GETMAGIC(ex) == ZMAGIC ? \
N_SETMAGIC(ex,ZMAGIC,0,N_GETFLAG(ex)|(f)) : \
N_SETMAGIC(ex,N_GETMAGIC(ex), MID_MACHINE, \
N_GETFLAG(ex)|(f)))
#define N_IS_DYNAMIC(ex) ((N_GETMAGIC_NET(ex) == ZMAGIC) ? \
((N_GETFLAG_NET(ex) & EX_DYNAMIC)) : \
((N_GETFLAG(ex) & EX_DYNAMIC)))
#if defined(NetBSD) || defined(CROSS_LINKER)
#define N_SET_FLAG(ex,f) (oldmagic || N_GETMAGIC(ex)==QMAGIC ? (0) : \
N_SETMAGIC(ex, \
N_GETMAGIC(ex), \
MID_MACHINE, \
N_GETFLAG(ex)|(f)))
#define N_IS_DYNAMIC(ex) ((N_GETFLAG(ex) & EX_DYNAMIC))
#define N_BADMID(ex) \
(N_GETMID(ex) != 0 && N_GETMID(ex) != MID_MACHINE)
#endif
/*
* FreeBSD does it differently
*/
#ifdef FreeBSD
#define N_SET_FLAG(ex,f) (oldmagic ? (0) : \
(netzmagic == 0 ? \
N_SETMAGIC(ex, \
N_GETMAGIC(ex), \
MID_MACHINE, \
N_GETFLAG(ex)|(f)) : \
N_SETMAGIC_NET(ex, \
N_GETMAGIC_NET(ex), \
MID_MACHINE, \
N_GETFLAG_NET(ex)|(f)) ))
#define N_IS_DYNAMIC(ex) ((N_GETMAGIC_NET(ex) == ZMAGIC) ? \
((N_GETFLAG_NET(ex) & EX_DYNAMIC)) : \
((N_GETFLAG(ex) & EX_DYNAMIC) ))
#define N_BADMID(ex) 0
#endif
/*
* Should be handled by a.out.h ?
@ -101,16 +125,16 @@ typedef struct jmpslot {
#define md_swapout_zsymbols(s,n)
#define md_swapin_reloc(r,n)
#define md_swapout_reloc(r,n)
#define md_swapin_link_dynamic(l)
#define md_swapout_link_dynamic(l)
#define md_swapin_link_dynamic_2(l)
#define md_swapout_link_dynamic_2(l)
#define md_swapin_ld_debug(d)
#define md_swapout_ld_debug(d)
#define md_swapin__dynamic(l)
#define md_swapout__dynamic(l)
#define md_swapin_section_dispatch_table(l)
#define md_swapout_section_dispatch_table(l)
#define md_swapin_so_debug(d)
#define md_swapout_so_debug(d)
#define md_swapin_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n)
#define md_swapin_link_object(l,n)
#define md_swapout_link_object(l,n)
#define md_swapin_sod(l,n)
#define md_swapout_sod(l,n)
#define md_swapout_jmpslot(j,n)
#define md_swapout_got(g,n)
#define md_swapin_ranlib_hdr(h,n)
@ -130,23 +154,23 @@ void md_swapin_reloc __P((struct relocation_info *, int));
void md_swapout_reloc __P((struct relocation_info *, int));
void md_swapout_jmpslot __P((jmpslot_t *, int));
#define md_swapin_symbols(s,n) swap_symbols(s,n)
#define md_swapout_symbols(s,n) swap_symbols(s,n)
#define md_swapin_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapout_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapin_link_dynamic(l) swap_link_dynamic(l)
#define md_swapout_link_dynamic(l) swap_link_dynamic(l)
#define md_swapin_link_dynamic_2(l) swap_link_dynamic_2(l)
#define md_swapout_link_dynamic_2(l) swap_link_dynamic_2(l)
#define md_swapin_ld_debug(d) swap_ld_debug(d)
#define md_swapout_ld_debug(d) swap_ld_debug(d)
#define md_swapin_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapin_link_object(l,n) swapin_link_object(l,n)
#define md_swapout_link_object(l,n) swapout_link_object(l,n)
#define md_swapout_got(g,n) swap_longs((long*)(g),n)
#define md_swapin_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapout_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapin_symbols(s,n) swap_symbols(s,n)
#define md_swapout_symbols(s,n) swap_symbols(s,n)
#define md_swapin_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapout_zsymbols(s,n) swap_zsymbols(s,n)
#define md_swapin__dynamic(l) swap__dynamic(l)
#define md_swapout__dynamic(l) swap__dynamic(l)
#define md_swapin_section_dispatch_table(l) swap_section_dispatch_table(l)
#define md_swapout_section_dispatch_table(l) swap_section_dispatch_table(l)
#define md_swapin_so_debug(d) swap_so_debug(d)
#define md_swapout_so_debug(d) swap_so_debug(d)
#define md_swapin_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapout_rrs_hash(f,n) swap_rrs_hash(f,n)
#define md_swapin_sod(l,n) swapin_sod(l,n)
#define md_swapout_sod(l,n) swapout_sod(l,n)
#define md_swapout_got(g,n) swap_longs((long*)(g),n)
#define md_swapin_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swapout_ranlib_hdr(h,n) swap_ranlib_hdr(h,n)
#define md_swap_short(x) ( (((x) >> 8) & 0xff) | (((x) & 0xff) << 8) )

1126
libexec/rtld-aout/rtld.c
View file

File diff suppressed because it is too large Load diff

40
libexec/rtld-aout/shlib.c
View file

@ -1,5 +1,33 @@
/*
* $Id: shlib.c,v 1.6 1993/12/11 11:58:29 jkh Exp $
* Copyright (c) 1993 Paul Kranenburg
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: shlib.c,v 1.9 1994/01/29 02:03:15 jtc Exp $
*/
#include <sys/param.h>
@ -25,14 +53,20 @@ char *strsep();
* Standard directories to search for files specified by -l.
*/
#ifndef STANDARD_SEARCH_DIRS
#define STANDARD_SEARCH_DIRS "/usr/lib"
#define STANDARD_SEARCH_DIRS "/usr/lib", "/usr/X386/lib", "/usr/local/lib"
#endif
/*
* Actual vector of library search directories,
* including `-L'ed and LD_LIBARAY_PATH spec'd ones.
*/
char **search_dirs;
int n_search_dirs;
char *standard_search_dirs[] = {
STANDARD_SEARCH_DIRS
};
int n_search_dirs;
void
add_search_dir(name)

10
sbin/ldconfig/Makefile
View file

@ -1,12 +1,12 @@
# $Id: Makefile,v 1.4 1993/11/09 20:39:46 paul Exp $
# $Id: Makefile,v 1.7 1993/12/10 05:10:22 mycroft Exp $
PROG= ldconfig
SRCS= ldconfig.c shlib.c etc.c
LDDIR?= $(.CURDIR)/..
LDFLAGS += -static
CFLAGS += -I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) -O
BINDIR= /sbin
MAN8 = ldconfig.8
CFLAGS+=-I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE)
LDSTATIC=-static
BINDIR= /sbin
MAN8= ldconfig.8
.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)

2
sbin/ldconfig/ldconfig.8
View file

@ -1,6 +1,6 @@
.Dd October 3, 1993
.Dt LDCONFIG 8
.Os FreeBSD
.Os FreeBSD 1.1
.Sh NAME
.Nm ldconfig
.Nd configure the shared library cache

36
sbin/ldconfig/ldconfig.c
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ldconfig.c,v 1.2 1993/11/09 04:19:22 paul Exp $
* $Id: ldconfig.c,v 1.4 1993/12/02 01:03:16 jkh Exp $
*/
#include <sys/param.h>
@ -72,7 +72,7 @@ struct shlib_list {
static struct shlib_list *shlib_head = NULL, **shlib_tail = &shlib_head;
static void enter __P((char *, char *, char *, int *, int));
static int dodir __P((char *));
static int dodir __P((char *, int));
static int build_hints __P((void));
int
@ -114,10 +114,10 @@ char *argv[];
std_search_dirs(NULL);
for (i = 0; i < n_search_dirs; i++)
rval |= dodir(search_dirs[i]);
rval |= dodir(search_dirs[i], 1);
for (i = optind; i < argc; i++)
rval |= dodir(argv[i]);
rval |= dodir(argv[i], 0);
rval |= build_hints();
@ -125,8 +125,9 @@ char *argv[];
}
int
dodir(dir)
dodir(dir, silent)
char *dir;
int silent;
{
DIR *dd;
struct dirent *dp;
@ -134,7 +135,8 @@ char *dir;
int dewey[MAXDEWEY], ndewey;
if ((dd = opendir(dir)) == NULL) {
perror(dir);
if (!silent || errno != ENOENT)
perror(dir);
return -1;
}
@ -314,16 +316,26 @@ build_hints()
return -1;
}
mywrite(&hdr, 1, sizeof(struct hints_header), fd);
mywrite(blist, hdr.hh_nbucket, sizeof(struct hints_bucket), fd);
mywrite(strtab, strtab_sz, 1, fd);
if (write(fd, &hdr, sizeof(struct hints_header)) !=
sizeof(struct hints_header)) {
perror(_PATH_LD_HINTS);
return -1;
}
if (write(fd, blist, hdr.hh_nbucket * sizeof(struct hints_bucket)) !=
hdr.hh_nbucket * sizeof(struct hints_bucket)) {
perror(_PATH_LD_HINTS);
return -1;
}
if (write(fd, strtab, strtab_sz) != strtab_sz) {
perror(_PATH_LD_HINTS);
return -1;
}
if (close(fd) != 0) {
perror(_PATH_LD_HINTS);
return -1;
}
/* Now, install real file */
/* Install it */
if (unlink(_PATH_LD_HINTS) != 0 && errno != ENOENT) {
perror(_PATH_LD_HINTS);
return -1;

2
usr.bin/ldd/ldd.1
View file

@ -1,6 +1,6 @@
.Dd October 22, 1993
.Dt LDD 1
.Os FreeBSD
.Os FreeBSD 1.1
.Sh NAME
.Nm ldd
.Nd list dynamic object dependencies

5
usr.bin/ldd/ldd.c
View file

@ -14,7 +14,7 @@
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ldd.c,v 1.3 1993/10/31 14:54:29 pk Exp $
* $Id: ldd.c,v 1.2 1993/11/09 04:19:27 paul Exp $
*/
#include <sys/param.h>
@ -107,6 +107,7 @@ char *argv[];
(void)close(fd);
printf("%s:\n", *argv);
fflush(stdout);
switch (fork()) {
case -1: