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Sat Jan 6 16:39:14 1996 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

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* Makefile (subdirs): Added db.

	* resolv/Makefile (routines): Add res_data.
	* resolv/res_data.c, resolv/res_debug.c, resolv/resolv.h:
	Updated from BIND 4.9.3 final release.

	* elf/dynamic-link.h (elf_get_dynamic_info): Handle
	processor-specific tags.
	(ELF_DYNAMIC_DO_REL, ELF_DYNAMIC_DO_RELA): Handle absent DT_PLTREL tag.

	* elf/elf.h (DT_MIPS_NUM, DT_PROCNUM): New macros.
	* elf/link.h (struct link_map): Extend `l_info' by DT_PROCNUM.

	* sysdeps/i386/dl-machine.h (elf_machine_runtime_setup): Take new
	arg LAZY.  Only do our work if LAZY and there is a DT_JMPREL record.
	* elf/dl-reloc.c (_dl_relocate_object): Call
	elf_machine_runtime_setup unconditionally, and pass it LAZY flag.

	* elf/dl-load.c: Fixed ELFMAG check to work for either byte order.
	Align end of load segment only to page size, not to segment alignment.
This commit is contained in:
Roland McGrath
1996-01-07 10:00:21 +00:00
parent c4b7291877
commit a2e1b046f6
11 changed files with 191 additions and 73 deletions
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20
elf/dynamic-link.h
View File

@@ -25,11 +25,11 @@ Cambridge, MA 02139, USA. */
/* Read the dynamic section at DYN and fill in INFO with indices DT_*. */
static inline void
elf_get_dynamic_info (Elf32_Dyn *dyn, Elf32_Dyn *info[DT_NUM])
elf_get_dynamic_info (Elf32_Dyn *dyn, Elf32_Dyn *info[DT_NUM + DT_PROCNUM])
{
unsigned int i;
for (i = 0; i < DT_NUM; ++i)
for (i = 0; i < DT_NUM + DT_PROCNUM; ++i)
info[i] = NULL;
if (! dyn)
@@ -37,8 +37,14 @@ elf_get_dynamic_info (Elf32_Dyn *dyn, Elf32_Dyn *info[DT_NUM])
while (dyn->d_tag != DT_NULL)
{
assert (dyn->d_tag < DT_NUM);
info[dyn->d_tag] = dyn++;
if (dyn->d_tag < DT_NUM)
info[dyn->d_tag] = dyn;
else if (dyn->d_tag >= DT_LOPROC &&
dyn->d_tag < DT_LOPROC + DT_PROCNUM)
info[dyn->d_tag - DT_LOPROC + DT_NUM] = dyn;
else
assert (! "bad dynamic tag");
dyn++;
}
if (info[DT_RELA])
@@ -60,7 +66,8 @@ elf_get_dynamic_info (Elf32_Dyn *dyn, Elf32_Dyn *info[DT_NUM])
#define ELF_DYNAMIC_DO_REL(map, lazy, resolve) \
if ((map)->l_info[DT_REL]) \
elf_dynamic_do_rel ((map), DT_REL, DT_RELSZ, (resolve), 0); \
if ((map)->l_info[DT_PLTREL]->d_un.d_val == DT_REL) \
if ((map)->l_info[DT_PLTREL] && \
(map)->l_info[DT_PLTREL]->d_un.d_val == DT_REL) \
elf_dynamic_do_rel ((map), DT_JMPREL, DT_PLTRELSZ, (resolve), (lazy));
#else
#define ELF_DYNAMIC_DO_RELA(map, lazy, resolve) /* Nothing to do. */
@@ -72,7 +79,8 @@ elf_get_dynamic_info (Elf32_Dyn *dyn, Elf32_Dyn *info[DT_NUM])
#define ELF_DYNAMIC_DO_RELA(map, lazy, resolve) \
if ((map)->l_info[DT_RELA]) \
elf_dynamic_do_rela ((map), DT_RELA, DT_RELASZ, (resolve), 0); \
if ((map)->l_info[DT_PLTREL]->d_un.d_val == DT_RELA) \
if ((map)->l_info[DT_PLTREL] && \
(map)->l_info[DT_PLTREL]->d_un.d_val == DT_RELA) \
elf_dynamic_do_rela ((map), DT_JMPREL, DT_PLTRELSZ, (resolve), (lazy));
#else
#define ELF_DYNAMIC_DO_RELA(map, lazy, resolve) /* Nothing to do. */