mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 09:10:28 +00:00
ae500c1ff8
Highlights: - Make sure that only TLS sections are sorted into TLS segment. - Fixed multiple errors in "Section to Segment mapping". - Man page updates - ar improvements - elfcopy: avoid filter_reloc uninitialized variable for rela - elfcopy: avoid stripping relocations from static binaries - readelf: avoid printing directory in front of absolute path - readelf: add NT_FREEBSD_FEATURE_CTL FreeBSD note type - test improvements NOTES: Some of these changes originated in FreeBSD and simply reduce diffs between contrib and vendor. ELF Tool Chain ar is not (currently) used in FreeBSD, and there are improvements in both FreeBSD and ELF Tool Chain ar that are not in the other. Sponsored by: The FreeBSD Foundation
152 lines
4.4 KiB
Groff
152 lines
4.4 KiB
Groff
.\" Copyright (c) 2011 Kai Wang
|
|
.\" 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.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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: dwarf_add_arange.3 3640 2018-10-14 14:09:13Z jkoshy $
|
|
.\"
|
|
.Dd September 18, 2011
|
|
.Dt DWARF_ADD_ARANGE 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm dwarf_add_arange ,
|
|
.Nm dwarf_add_arange_b
|
|
.Nd add address range information to a DWARF producer instance
|
|
.Sh LIBRARY
|
|
.Lb libdwarf
|
|
.Sh SYNOPSIS
|
|
.In libdwarf.h
|
|
.Ft "Dwarf_Unsigned"
|
|
.Fo dwarf_add_arange
|
|
.Fa "Dwarf_P_Debug dbg"
|
|
.Fa "Dwarf_Addr start"
|
|
.Fa "Dwarf_Unsigned length"
|
|
.Fa "Dwarf_Signed symbol_index"
|
|
.Fa "Dwarf_Error *err"
|
|
.Fc
|
|
.Ft "Dwarf_Unsigned"
|
|
.Fo dwarf_add_arange_b
|
|
.Fa "Dwarf_P_Debug dbg"
|
|
.Fa "Dwarf_Addr start"
|
|
.Fa "Dwarf_Unsigned length"
|
|
.Fa "Dwarf_Unsigned symbol_index"
|
|
.Fa "Dwarf_Unsigned end_symbol_index"
|
|
.Fa "Dwarf_Addr offset_from_end_symbol"
|
|
.Fa "Dwarf_Error *err"
|
|
.Fc
|
|
.Sh DESCRIPTION
|
|
Function
|
|
.Fn dwarf_add_arange_b
|
|
adds an address range entry to a producer instance.
|
|
.Pp
|
|
Argument
|
|
.Ar dbg
|
|
should reference a DWARF producer instance allocated using
|
|
.Xr dwarf_producer_init 3
|
|
or
|
|
.Xr dwarf_producer_init_b 3 .
|
|
.Pp
|
|
Argument
|
|
.Ar start
|
|
specifies the relocatable start address of the address range.
|
|
.Pp
|
|
Argument
|
|
.Ar length
|
|
specifies the length of the address range.
|
|
.Pp
|
|
Argument
|
|
.Ar symbol_index
|
|
specifies the ELF symbol index of the first symbol to be used for
|
|
relocation.
|
|
.Pp
|
|
Argument
|
|
.Ar end_symbol_index
|
|
specifies the ELF symbol index of the second symbol to be used for
|
|
relocation.
|
|
.Bl -bullet
|
|
.It
|
|
If argument
|
|
.Ar end_symbol_index
|
|
is not 0, the
|
|
.Dv DW_DLC_SYMBOLIC_RELOCATIONS
|
|
flag should have been set on the DWARF producer instance.
|
|
The address value specified by argument
|
|
.Ar start
|
|
will be treated as an offset value from the first symbol,
|
|
and the argument
|
|
.Ar offset_from_end_symbol
|
|
should hold an offset value from the second symbol.
|
|
Application code can retrieve the relocation entries for the
|
|
symbol pair by calling function
|
|
.Xr dwarf_get_relocation_info 3 .
|
|
The relocation entry for the first symbol will have type
|
|
.Dv dwarf_drt_first_of_length_pair
|
|
and the relocation entry for the second symbol will have type
|
|
.Dv dwarf_drt_second_of_length_pair .
|
|
.It
|
|
If argument
|
|
.Ar end_symbol_index
|
|
is 0, argument
|
|
.Ar offset_from_end_symbol
|
|
will be ignored and only one symbol is used for relocation.
|
|
.El
|
|
.Pp
|
|
If argument
|
|
.Ar err
|
|
is not NULL, it will be used to store error information in case
|
|
of an error.
|
|
.Pp
|
|
Function
|
|
.Fn dwarf_add_arange
|
|
is deprecated.
|
|
It is similar to function
|
|
.Fn dwarf_add_arange_b
|
|
except that it cannot handle all possible symbol index values
|
|
and supports only one relocation symbol.
|
|
.Sh RETURN VALUES
|
|
On success, these functions return a non-zero value.
|
|
In case of an error, these functions return 0 and set
|
|
the argument
|
|
.Ar err .
|
|
.Sh ERRORS
|
|
These functions can fail with:
|
|
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
|
|
.It Bq Er DW_DLE_ARGUMENT
|
|
Argument
|
|
.Ar dbg
|
|
was NULL.
|
|
.It Bq Er DW_DLE_ARGUMENT
|
|
Argument
|
|
.Ar end_symbol_index
|
|
was non-zero, but the flag
|
|
.Dv DW_DLC_SYMBOLIC_RELOCATIONS
|
|
was not set on the producer instance.
|
|
.It Bq Er DW_DLE_MEMORY
|
|
An out of memory condition was encountered during the execution of the
|
|
function.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr dwarf 3 ,
|
|
.Xr dwarf_get_relocation_info 3 ,
|
|
.Xr dwarf_producer_init 3 ,
|
|
.Xr dwarf_producer_init_b 3
|