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| author | Roland McGrath <roland@gnu.org> | 2002-12-06 11:15:07 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2002-12-06 11:15:07 +0000 |
| commit | fde89ad0091e492bd2d99d9d4925fbd62a7dc643 (patch) | |
| tree | a3463d94ac501cf65556a614a54a66b64cfaf1ad /sysdeps/generic/libc-tls.c | |
| parent | d58847f9529bd81ff603e3a2beff7c6306165dac (diff) | |
| download | glibc-fde89ad0091e492bd2d99d9d4925fbd62a7dc643.zip glibc-fde89ad0091e492bd2d99d9d4925fbd62a7dc643.tar.gz glibc-fde89ad0091e492bd2d99d9d4925fbd62a7dc643.tar.bz2 | |
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Cope with zero ALIGN.
* malloc/hooks.c [_LIBC && (USE___THREAD || (USE_TLS && !SHARED))]
(malloc_starter, memalign_starter, free_starter): Don't define these.
* malloc/malloc.c [_LIBC && (USE___THREAD || (USE_TLS && !SHARED))]:
Don't declare them either.
* malloc/arena.c (ptmalloc_init) [_LIBC && USE_TLS]: Don't call
__pthread_initialize, so no need to set hooks to *_starter.
(ptmalloc_init_minimal): New function, broken out of ptmalloc_init.
[_LIBC && SHARED && USE_TLS && !USE___THREAD]
(__libc_malloc_pthread_startup): New function.
* malloc/Versions (libc: GLIBC_PRIVATE): New set, add that function.
* malloc/hooks.c (memalign_starter): New function.
* malloc/malloc.c: Declare it.
* malloc/arena.c (save_memalign_hook): New variable.
(ptmalloc_init): Set __memalign_hook to memalign_starter.
* elf/dl-minimal.c (free): Clear the memory.
(calloc): Just call malloc, knowing all memory it returns is cleared.
* sysdeps/generic/dl-tls.c (allocate_dtv): Use calloc instead of
malloc and memset; calloc can avoid the zeroing when redundant.
(_dl_tls_setup): Likewise.
* elf/dl-load.c (decompose_rpath): Likewise.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Comment out memset
call, since memory from sbrk at startup is already zero.
* elf/rtld.c (_dl_start, dl_main): TLS_INIT_TP macro now returns an
error string for failure, null for success. Update callers.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Likewise.
* elf/dl-load.c (_dl_map_object_from_fd): Likewise.
Diffstat (limited to 'sysdeps/generic/libc-tls.c')
| -rw-r--r-- | sysdeps/generic/libc-tls.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/sysdeps/generic/libc-tls.c b/sysdeps/generic/libc-tls.c index 756a2bf..5861e99 100644 --- a/sysdeps/generic/libc-tls.c +++ b/sysdeps/generic/libc-tls.c @@ -21,6 +21,7 @@ #include <ldsodefs.h> #include <tls.h> #include <unistd.h> +#include <stdio.h> #ifdef SHARED #error makefile bug, this file is for static only @@ -168,8 +169,8 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign) /* Initialize the TLS block. */ # if TLS_TCB_AT_TP static_dtv[2].pointer = ((char *) tlsblock + tcb_offset - - roundup (memsz, align)); - static_map.l_tls_offset = roundup (memsz, align); + - roundup (memsz, align ?: 1)); + static_map.l_tls_offset = roundup (memsz, align ?: 1); # elif TLS_DTV_AT_TP tcb_offset = roundup (tcbsize, align); static_dtv[2].pointer = (char *) tlsblock + tcb_offset; @@ -177,8 +178,10 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign) # else # error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" # endif + /* sbrk gives us zero'd memory, so we don't need this. memset (__mempcpy (static_dtv[2].pointer, initimage, filesz), '\0', memsz - filesz); + */ /* Install the pointer to the dtv. */ @@ -186,13 +189,15 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign) # if TLS_TCB_AT_TP INSTALL_DTV ((char *) tlsblock + tcb_offset, static_dtv); - TLS_INIT_TP ((char *) tlsblock + tcb_offset, 0); + const char *lossage = TLS_INIT_TP ((char *) tlsblock + tcb_offset, 0); # elif TLS_DTV_AT_TP INSTALL_DTV (tlsblock, static_dtv); - TLS_INIT_TP (tlsblock, 0); + const char *lossage = TLS_INIT_TP (tlsblock, 0); # else # error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" # endif + if (__builtin_expect (lossage != NULL, 0)) + __libc_fatal (lossage); /* We have to create a fake link map which normally would be created by the dynamic linker. It just has to have enough information to |