lib/glibc
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Add <sys/auxv.h> and getauxval.

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This commit is contained in:
Richard Henderson
2012-05-20 10:34:00 -07:00
parent a6f1845d45
commit c7683a6d02
24 changed files with 326 additions and 61 deletions
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9
elf/dl-sysdep.c
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@ -61,7 +61,6 @@ int __libc_multiple_libcs = 0; /* Defining this here avoids the inclusion
/* This variable contains the lowest stack address ever used. */
void *__libc_stack_end attribute_relro = NULL;
rtld_hidden_data_def(__libc_stack_end)
static ElfW(auxv_t) *_dl_auxv attribute_relro;
void *_dl_random attribute_relro = NULL;
#ifndef DL_FIND_ARG_COMPONENTS
@ -111,12 +110,12 @@ _dl_sysdep_start (void **start_argptr,
__libc_stack_end = DL_STACK_END (start_argptr);
DL_FIND_ARG_COMPONENTS (start_argptr, _dl_argc, INTUSE(_dl_argv), _environ,
_dl_auxv);
GLRO(dl_auxv));
user_entry = (ElfW(Addr)) ENTRY_POINT;
GLRO(dl_platform) = NULL; /* Default to nothing known about the platform. */
for (av = _dl_auxv; av->a_type != AT_NULL; set_seen (av++))
for (av = GLRO(dl_auxv); av->a_type != AT_NULL; set_seen (av++))
switch (av->a_type)
{
case AT_PHDR:
@ -240,7 +239,7 @@ _dl_sysdep_start (void **start_argptr,
if (__builtin_expect (INTUSE(__libc_enable_secure), 0))
__libc_check_standard_fds ();
(*dl_main) (phdr, phnum, &user_entry, _dl_auxv);
(*dl_main) (phdr, phnum, &user_entry, GLRO(dl_auxv));
return user_entry;
}
@ -265,7 +264,7 @@ _dl_show_auxv (void)
close by (otherwise the array will be too large). In case we have
to support a platform where these requirements are not fulfilled
some alternative implementation has to be used. */
for (av = _dl_auxv; av->a_type != AT_NULL; ++av)
for (av = GLRO(dl_auxv); av->a_type != AT_NULL; ++av)
{
static const struct
{