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authorRoland McGrath <roland@gnu.org>1996-01-07 10:00:21 +0000
committerRoland McGrath <roland@gnu.org>1996-01-07 10:00:21 +0000
commita2e1b046f6891ac76830353f7afc97b0c6d27a64 (patch)
tree4bc169458c918fe9a19aa2946de81ced9ade1124 /elf/dynamic-link.h
parentc4b7291877252d1a0b2e2afbc90bab7fe6965a38 (diff)
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Sat Jan 6 16:39:14 1996 Roland McGrath <roland@churchy.gnu.ai.mit.edu>cvs/libc-960108cvs/libc-960107
* 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.
Diffstat (limited to 'elf/dynamic-link.h')
-rw-r--r--elf/dynamic-link.h20
1 files changed, 14 insertions, 6 deletions
diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h
index 84d440ec5b..0c4e99d2b6 100644
--- a/elf/dynamic-link.h
+++ b/elf/dynamic-link.h
@@ -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. */