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]
56 lines
2.0 KiB
Diff
56 lines
2.0 KiB
Diff
commit 458733fffe2c410418b5f633ffd6ed65efd2aac0
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Thu Feb 3 10:58:59 2022 +0100
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Linux: Remove DL_FIND_ARG_COMPONENTS
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The generic definition is always used since the Native Client
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port has been removed.
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Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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(cherry picked from commit 2d47fa68628e831a692cba8fc9050cef435afc5e)
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diff --git a/sysdeps/unix/sysv/linux/dl-sysdep.c b/sysdeps/unix/sysv/linux/dl-sysdep.c
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index aae983777ba15fae..e36b3e6b63b1aa7e 100644
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--- a/sysdeps/unix/sysv/linux/dl-sysdep.c
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+++ b/sysdeps/unix/sysv/linux/dl-sysdep.c
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@@ -59,19 +59,6 @@ void *__libc_stack_end attribute_relro = NULL;
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rtld_hidden_data_def(__libc_stack_end)
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void *_dl_random attribute_relro = NULL;
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-#ifndef DL_FIND_ARG_COMPONENTS
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-# define DL_FIND_ARG_COMPONENTS(cookie, argc, argv, envp, auxp) \
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- do { \
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- void **_tmp; \
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- (argc) = *(long int *) cookie; \
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- (argv) = (char **) ((long int *) cookie + 1); \
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- (envp) = (argv) + (argc) + 1; \
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- for (_tmp = (void **) (envp); *_tmp; ++_tmp) \
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- continue; \
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- (auxp) = (void *) ++_tmp; \
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- } while (0)
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-#endif
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-
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#ifndef DL_STACK_END
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# define DL_STACK_END(cookie) ((void *) (cookie))
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#endif
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@@ -90,8 +77,16 @@ _dl_sysdep_start (void **start_argptr,
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#endif
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__libc_stack_end = DL_STACK_END (start_argptr);
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- DL_FIND_ARG_COMPONENTS (start_argptr, _dl_argc, _dl_argv, _environ,
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- GLRO(dl_auxv));
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+ _dl_argc = (intptr_t) *start_argptr;
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+ _dl_argv = (char **) (start_argptr + 1); /* Necessary aliasing violation. */
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+ _environ = _dl_argv + _dl_argc + 1;
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+ for (char **tmp = _environ + 1; ; ++tmp)
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+ if (*tmp == NULL)
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+ {
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+ /* Another necessary aliasing violation. */
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+ GLRO(dl_auxv) = (ElfW(auxv_t) *) (tmp + 1);
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+ break;
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+ }
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user_entry = (ElfW(Addr)) ENTRY_POINT;
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GLRO(dl_platform) = NULL; /* Default to nothing known about the platform. */
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