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* sysdeps/generic/libc-tls.c (__libc_setup_tls): Reintroduce changes

Browse Source 
from 2002-12-06, but remove unnecessary memset call without removing
	necessary copy of initialization image.

	* Makerules ($(common-objpfx)format.lds): New target.
	(common-generated): Add it.
	($(inst_libdir)/libc.so): Depend on that, and cat it into the result.
	* scripts/output-format.sed: New file.
	* Makefile (distribute): Add it.

2002-12-07  Kenneth W. Chen  <kenneth.w.chen@intel.com>
This commit is contained in:
Roland McGrath 2002-12-07 21:55:56 +00:00
parent cc1b826866
commit 82412d5402
2 changed files with 23 additions and 7 deletions
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14
ChangeLog
View File

@ -1,9 +1,21 @@
2002-12-07 Roland McGrath <roland@redhat.com>
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Reintroduce changes
from 2002-12-06, but remove unnecessary memset call without removing
necessary copy of initialization image.
* Makerules ($(common-objpfx)format.lds): New target.
(common-generated): Add it.
($(inst_libdir)/libc.so): Depend on that, and cat it into the result.
* scripts/output-format.sed: New file.
* Makefile (distribute): Add it.
2002-12-07 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/libc-tls.c: Include <sys/param.h>.
Reported by Art Haas <ahaas@airmail.net>.
2002-12-07 Kenneth W. Chen <kenneth.w.chen@intel.com>.
2002-12-07 Kenneth W. Chen <kenneth.w.chen@intel.com>
* sysdeps/ia64/strncpy.S (strncpy): Clear ar.ec. Fix .recovery4.

16
sysdeps/generic/libc-tls.c
View File

@ -21,8 +21,10 @@
#include <ldsodefs.h>
#include <tls.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/param.h>
#ifdef SHARED
#error makefile bug, this file is for static only
#endif
@ -169,8 +171,8 @@ __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;
@ -178,8 +180,8 @@ __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
memset (__mempcpy (static_dtv[2].pointer, initimage, filesz),
'\0', memsz - filesz);
/* sbrk gives us zero'd memory, so we don't need to clear the remainder. */
memcpy (static_dtv[2].pointer, initimage, filesz);
/* Install the pointer to the dtv. */
@ -187,13 +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