94eca17094
Upstream commit: ede8d94d154157d269b18f3601440ac576c1f96a
- csu: Implement and use _dl_early_allocate during static startup
- Linux: Introduce __brk_call for invoking the brk system call
- Linux: Implement a useful version of _startup_fatal
- ia64: Always define IA64_USE_NEW_STUB as a flag macro
- Linux: Define MMAP_CALL_INTERNAL
- i386: Honor I386_USE_SYSENTER for 6-argument Linux system calls
- i386: Remove OPTIMIZE_FOR_GCC_5 from Linux libc-do-syscall.S
- elf: Remove __libc_init_secure
- Linux: Consolidate auxiliary vector parsing (redo)
- Linux: Include <dl-auxv.h> in dl-sysdep.c only for SHARED
- Revert "Linux: Consolidate auxiliary vector parsing"
- Linux: Consolidate auxiliary vector parsing
- Linux: Assume that NEED_DL_SYSINFO_DSO is always defined
- Linux: Remove DL_FIND_ARG_COMPONENTS
- Linux: Remove HAVE_AUX_SECURE, HAVE_AUX_XID, HAVE_AUX_PAGESIZE
- elf: Merge dl-sysdep.c into the Linux version
- elf: Remove unused NEED_DL_BASE_ADDR and _dl_base_addr
- x86: Optimize {str|wcs}rchr-evex
- x86: Optimize {str|wcs}rchr-avx2
- x86: Optimize {str|wcs}rchr-sse2
- x86: Cleanup page cross code in memcmp-avx2-movbe.S
- x86: Remove memcmp-sse4.S
- x86: Small improvements for wcslen
- x86: Remove AVX str{n}casecmp
- x86: Add EVEX optimized str{n}casecmp
- x86: Add AVX2 optimized str{n}casecmp
- x86: Optimize str{n}casecmp TOLOWER logic in strcmp-sse42.S
- x86: Optimize str{n}casecmp TOLOWER logic in strcmp.S
- x86: Remove strspn-sse2.S and use the generic implementation
- x86: Remove strpbrk-sse2.S and use the generic implementation
- x86: Remove strcspn-sse2.S and use the generic implementation
- x86: Optimize strspn in strspn-c.c
- x86: Optimize strcspn and strpbrk in strcspn-c.c
- x86: Code cleanup in strchr-evex and comment justifying branch
- x86: Code cleanup in strchr-avx2 and comment justifying branch
- x86_64: Remove bcopy optimizations
- x86-64: Remove bzero weak alias in SS2 memset
- x86_64/multiarch: Sort sysdep_routines and put one entry per line
- x86: Improve L to support L(XXX_SYMBOL (YYY, ZZZ))
- fortify: Ensure that __glibc_fortify condition is a constant [BZ #29141]
121 lines
3.5 KiB
Diff
121 lines
3.5 KiB
Diff
commit 2139b1848e3e0a960ccc615fe1fd78b5d10b1411
|
|
Author: Florian Weimer <fweimer@redhat.com>
|
|
Date: Thu Feb 3 10:58:59 2022 +0100
|
|
|
|
Linux: Remove HAVE_AUX_SECURE, HAVE_AUX_XID, HAVE_AUX_PAGESIZE
|
|
|
|
They are always defined.
|
|
|
|
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
(cherry picked from commit b9c3d3382f6f50e9723002deb2dc8127de720fa6)
|
|
|
|
diff --git a/sysdeps/unix/sysv/linux/dl-sysdep.c b/sysdeps/unix/sysv/linux/dl-sysdep.c
|
|
index 3e41469bcc395179..aae983777ba15fae 100644
|
|
--- a/sysdeps/unix/sysv/linux/dl-sysdep.c
|
|
+++ b/sysdeps/unix/sysv/linux/dl-sysdep.c
|
|
@@ -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)
|
|
{
|
|
diff --git a/sysdeps/unix/sysv/linux/ldsodefs.h b/sysdeps/unix/sysv/linux/ldsodefs.h
|
|
index 7e01f685b03b984d..0f152c592c2a9b04 100644
|
|
--- a/sysdeps/unix/sysv/linux/ldsodefs.h
|
|
+++ b/sysdeps/unix/sysv/linux/ldsodefs.h
|
|
@@ -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 */
|