[2/5] Linux: Remove HAVE_AUX_SECURE, HAVE_AUX_XID, HAVE_AUX_PAGESIZE
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| dj/TryBot-apply_patch |
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Patch applied to master at the time it was sent
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Commit Message
They are always defined.
---
sysdeps/unix/sysv/linux/dl-sysdep.c | 55 +----------------------------
sysdeps/unix/sysv/linux/ldsodefs.h | 12 -------
2 files changed, 1 insertion(+), 66 deletions(-)
@@ -85,21 +85,6 @@ _dl_sysdep_start (void **start_argptr,
ElfW(Word) phnum = 0;
ElfW(Addr) user_entry;
ElfW(auxv_t) *av;
-#ifdef HAVE_AUX_SECURE
-# define set_seen(tag) (tag) /* Evaluate for the side effects. */
-# define set_seen_secure() ((void) 0)
-#else
- uid_t uid = 0;
- gid_t gid = 0;
- unsigned int seen = 0;
-# define set_seen_secure() (seen = -1)
-# ifdef HAVE_AUX_XID
-# define set_seen(tag) (tag) /* Evaluate for the side effects. */
-# else
-# define M(type) (1 << (type))
-# define set_seen(tag) seen |= M ((tag)->a_type)
-# endif
-#endif
#ifdef NEED_DL_SYSINFO
uintptr_t new_sysinfo = 0;
#endif
@@ -116,7 +101,7 @@ _dl_sysdep_start (void **start_argptr,
"CONSTANT_MINSIGSTKSZ is constant");
GLRO(dl_minsigstacksize) = CONSTANT_MINSIGSTKSZ;
- for (av = GLRO(dl_auxv); av->a_type != AT_NULL; set_seen (av++))
+ for (av = GLRO(dl_auxv); av->a_type != AT_NULL; av++)
switch (av->a_type)
{
case AT_PHDR:
@@ -131,20 +116,7 @@ _dl_sysdep_start (void **start_argptr,
case AT_ENTRY:
user_entry = av->a_un.a_val;
break;
-#ifndef HAVE_AUX_SECURE
- case AT_UID:
- case AT_EUID:
- uid ^= av->a_un.a_val;
- break;
- case AT_GID:
- case AT_EGID:
- gid ^= av->a_un.a_val;
- break;
-#endif
case AT_SECURE:
-#ifndef HAVE_AUX_SECURE
- seen = -1;
-#endif
__libc_enable_secure = av->a_un.a_val;
break;
case AT_PLATFORM:
@@ -183,31 +155,6 @@ _dl_sysdep_start (void **start_argptr,
dl_hwcap_check ();
-#ifndef HAVE_AUX_SECURE
- if (seen != -1)
- {
- /* Fill in the values we have not gotten from the kernel through the
- auxiliary vector. */
-# ifndef HAVE_AUX_XID
-# define SEE(UID, var, uid) \
- if ((seen & M (AT_##UID)) == 0) var ^= __get##uid ()
- SEE (UID, uid, uid);
- SEE (EUID, uid, euid);
- SEE (GID, gid, gid);
- SEE (EGID, gid, egid);
-# endif
-
- /* If one of the two pairs of IDs does not match this is a setuid
- or setgid run. */
- __libc_enable_secure = uid | gid;
- }
-#endif
-
-#ifndef HAVE_AUX_PAGESIZE
- if (GLRO(dl_pagesize) == 0)
- GLRO(dl_pagesize) = __getpagesize ();
-#endif
-
#ifdef NEED_DL_SYSINFO
if (new_sysinfo != 0)
{
@@ -24,16 +24,4 @@
/* Get the real definitions. */
#include_next <ldsodefs.h>
-/* We can assume that the kernel always provides the AT_UID, AT_EUID,
- AT_GID, and AT_EGID values in the auxiliary vector from 2.4.0 or so on. */
-#define HAVE_AUX_XID
-
-/* We can assume that the kernel always provides the AT_SECURE value
- in the auxiliary vector from 2.5.74 or so on. */
-#define HAVE_AUX_SECURE
-
-/* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
- up the page size information. */
-#define HAVE_AUX_PAGESIZE
-
#endif /* ldsodefs.h */