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When loading dso without PT_GNU_STACK phdr, only call

Browse source 
__pthread_map_stacks_exec() on architectures that allow executable
stacks.

Reported and tested by:	marcel (ia64)
This commit is contained in:
kib 2011-01-25 21:12:31 +00:00
parent 736c72ab1a
commit 1290d38ac5
10 changed files with 26 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
libexec/rtld-elf/amd64/rtld_machdep.h
View file

@ -73,4 +73,7 @@ typedef struct {
extern void *__tls_get_addr(tls_index *ti);
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
#endif

3
libexec/rtld-elf/arm/rtld_machdep.h
View file

@ -69,4 +69,7 @@ void _rtld_bind_start(void);
extern void *__tls_get_addr(tls_index *ti);
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
#endif

3
libexec/rtld-elf/i386/rtld_machdep.h
View file

@ -74,4 +74,7 @@ typedef struct {
extern void *___tls_get_addr(tls_index *ti) __attribute__((__regparm__(1)));
extern void *__tls_get_addr(tls_index *ti);
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
#endif

3
libexec/rtld-elf/ia64/rtld_machdep.h
View file

@ -65,4 +65,7 @@ void call_initfini_pointer(const struct Struct_Obj_Entry *, Elf_Addr);
extern void *__tls_get_addr(unsigned long module, unsigned long offset);
#define RTLD_DEFAULT_STACK_PF_EXEC 0
#define RTLD_DEFAULT_STACK_EXEC 0
#endif

2
libexec/rtld-elf/map_object.c
View file

@ -101,7 +101,7 @@ map_object(int fd, const char *path, const struct stat *sb)
phdyn = phinterp = phtls = NULL;
phdr_vaddr = 0;
segs = alloca(sizeof(segs[0]) * hdr->e_phnum);
stack_flags = PF_X | PF_R | PF_W;
stack_flags = RTLD_DEFAULT_STACK_PF_EXEC | PF_R | PF_W;
while (phdr < phlimit) {
switch (phdr->p_type) {

3
libexec/rtld-elf/mips/rtld_machdep.h
View file

@ -69,4 +69,7 @@ void _rtld_bind_start(void);
extern void *__tls_get_addr(tls_index *ti);
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
#endif

3
libexec/rtld-elf/powerpc/rtld_machdep.h
View file

@ -84,4 +84,7 @@ typedef struct {
extern void *__tls_get_addr(tls_index* ti);
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
#endif

3
libexec/rtld-elf/powerpc64/rtld_machdep.h
View file

@ -76,4 +76,7 @@ typedef struct {
extern void *__tls_get_addr(tls_index* ti);
#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
#endif

2
libexec/rtld-elf/rtld.c
View file

@ -191,7 +191,7 @@ extern Elf_Dyn _DYNAMIC;
int osreldate, pagesize;
static int stack_prot = PROT_READ | PROT_WRITE | PROT_EXEC;
static int stack_prot = PROT_READ | PROT_WRITE | RTLD_DEFAULT_STACK_EXEC;
static int max_stack_flags;
/*

3
libexec/rtld-elf/sparc64/rtld_machdep.h
View file

@ -65,4 +65,7 @@ typedef struct {
extern void *__tls_get_addr(tls_index *ti);
#define RTLD_DEFAULT_STACK_PF_EXEC 0
#define RTLD_DEFAULT_STACK_EXEC 0
#endif