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* sysdeps/generic/libc-tls.c (__libc_setup_tls): Cope with zero ALIGN.

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* 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.
This commit is contained in:
Roland McGrath
2002-12-06 11:15:07 +00:00
parent d58847f952
commit fde89ad009
19 changed files with 296 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
elf/dl-load.c
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@ -513,8 +513,7 @@ decompose_rpath (struct r_search_path_struct *sps,
{
/* This object is on the list of objects for which the
RUNPATH and RPATH must not be used. */
result = (struct r_search_path_elem **)
malloc (sizeof (*result));
result = calloc (1, sizeof *result);
if (result == NULL)
{
signal_error_cache:
@ -523,8 +522,6 @@ decompose_rpath (struct r_search_path_struct *sps,
INTUSE(_dl_signal_error) (ENOMEM, NULL, NULL, errstring);
}
result[0] = NULL;
sps->dirs = result;
sps->malloced = 1;
@ -994,7 +991,8 @@ cannot allocate TLS data structures for initial thread");
}
/* Now we install the TCB in the thread register. */
if (__builtin_expect (TLS_INIT_TP (tcb, 0), 0) != -1)
errstring = TLS_INIT_TP (tcb, 0);
if (__builtin_expect (errstring == NULL, 1))
{
/* Now we are all good. */
l->l_tls_modid = ++GL(dl_tls_max_dtv_idx);
@ -1002,7 +1000,9 @@ cannot allocate TLS data structures for initial thread");
}
/* The kernel is too old or somesuch. */
errval = 0;
_dl_deallocate_tls (tcb, 1);
goto call_lose;
}
#endif