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* elf/rtld.c (_dl_start): Pass extra argument 1 to TLS_INIT_TP.
	(dl_main): Padd extra argument 0 to TLS_INIT_TP.
	* sysdeps/generic/libc-tls.c (__libc_setup_tls): Pass extra
	argument 1 to TLS_INIT_TP.
	* sysdeps/generic/tls.h (TLS_INIT_TP): Describe new parameter.

	* locale/loadarchive.c (_nl_load_locale_from_archive): Store strdup of
This commit is contained in:
Ulrich Drepper 2002-08-20 10:14:15 +00:00
parent 58d2d09bde
commit d78ce054e2
7 changed files with 38 additions and 15 deletions
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8
ChangeLog
View File

@ -1,5 +1,11 @@
2002-08-20 Ulrich Drepper <drepper@redhat.com>
* elf/rtld.c (_dl_start): Pass extra argument 1 to TLS_INIT_TP.
(dl_main): Padd extra argument 0 to TLS_INIT_TP.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Pass extra
argument 1 to TLS_INIT_TP.
* sysdeps/generic/tls.h (TLS_INIT_TP): Describe new parameter.
* sysdeps/generic/dl-tls.c (allocate_dtv): Optimize a bit.
* elf/Versions [ld] (GLIBC_PRIVATE): Add _dl_get_tls_static_info.
@ -47,7 +53,7 @@
* libio/tst-mmap-offend.c: New file.
* libio/Makefile (tests): Add it.
* locale/loadarchive.c (_nl_load_locale_from_archive) Store strdup of
* locale/loadarchive.c (_nl_load_locale_from_archive): Store strdup of
the name as passed, rather than the name in the archive dictionary.
2002-08-15 Ulrich Drepper <drepper@redhat.com>

7
elf/rtld.c
View File

@ -262,11 +262,12 @@ _dl_start (void *arg)
INSTALL_DTV ((char *) tlsblock + bootstrap_map.l_tls_offset,
initdtv);
if (TLS_INIT_TP ((char *) tlsblock + bootstrap_map.l_tls_offset) != 0)
if (TLS_INIT_TP ((char *) tlsblock + bootstrap_map.l_tls_offset, 1)
!= 0)
_dl_fatal_printf ("cannot setup thread-local storage\n");
# elif TLS_DTV_AT_TP
INSTALL_DTV (tlsblock, initdtv);
if (TLS_INIT_TP (tlsblock) != 0)
if (TLS_INIT_TP (tlsblock, 1) != 0)
_dl_fatal_printf ("cannot setup thread-local storage\n");
# else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
@ -1475,7 +1476,7 @@ cannot allocate TLS data structures for initial thread");
_dl_allocate_tls_init (tcbp);
/* And finally install it for the main thread. */
TLS_INIT_TP (tcbp);
TLS_INIT_TP (tcbp, 0);
}
#endif

9
linuxthreads/ChangeLog
View File

@ -1,5 +1,14 @@
2002-08-20 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/tls.h (TLS_INIT_TP): Add new parameter and pass it on
to TLS_SETUP_GS_SEGMENT.
(TLS_SETUP_GS_SEGMENT): Add new parameter and pass it on to
TLS_DO_SET_THREAD_AREA.
(TLS_DO_SET_THREAD_AREA): If new parameter is zero determine
entry number from %gs value.
* sysdeps/sh/tls.h (TLS_INIT_TP): Add new parameter and simply
ignore it.
* manager.c (pthread_handle_create): Pass NULL to _dl_allocate_tls.
Pass true to _dl_deallocate_tls.
(pthread_free): Likewise.

17
linuxthreads/sysdeps/i386/tls.h
View File

@ -115,12 +115,16 @@ typedef struct
__builtin_expect (result, 0) != 0 ? -1 : nr * 8 + 7; \
})
# define TLS_DO_SET_THREAD_AREA(descr) \
# define TLS_DO_SET_THREAD_AREA(descr, firstcall) \
({ \
struct modify_ldt_ldt_s ldt_entry = \
{ -1, (unsigned long int) (descr), sizeof (struct _pthread_descr_struct), \
1, 0, 0, 0, 0, 1, 0 }; \
int result; \
if (!firstcall) \
ldt_entry.entry_number = ({ int _gs; \
asm ("movw %%gs, %w0" : "=q" (_gs)); \
(_gs & 0xffff) >> 3; }); \
asm volatile (TLS_LOAD_EBX \
"int $0x80\n\t" \
TLS_LOAD_EBX \
@ -134,10 +138,11 @@ typedef struct
})
# ifdef __ASSUME_SET_THREAD_AREA_SYSCALL
# define TLS_SETUP_GS_SEGMENT(descr) TLS_DO_SET_THREAD_AREA (descr)
# define TLS_SETUP_GS_SEGMENT(descr, firstcall) \
TLS_DO_SET_THREAD_AREA (descr, firstcall)
# elif defined __NR_set_thread_area
# define TLS_SETUP_GS_SEGMENT(descr) \
({ int __seg = TLS_DO_SET_THREAD_AREA (descr); \
# define TLS_SETUP_GS_SEGMENT(descr, firstcall) \
({ int __seg = TLS_DO_SET_THREAD_AREA (descr, firstcall); \
__seg == -1 ? TLS_DO_MODIFY_LDT (descr, 0) : __seg; })
# else
# define TLS_SETUP_GS_SEGMENT(descr) TLS_DO_MODIFY_LDT ((descr), 0)
@ -146,7 +151,7 @@ typedef struct
/* Code to initially initialize the thread pointer. This might need
special attention since 'errno' is not yet available and if the
operation can cause a failure 'errno' must not be touched. */
# define TLS_INIT_TP(descr) \
# define TLS_INIT_TP(descr, firstcall) \
({ \
void *_descr = (descr); \
tcbhead_t *head = _descr; \
@ -156,7 +161,7 @@ typedef struct
/* For now the thread descriptor is at the same address. */ \
head->self = _descr; \
\
__gs = TLS_SETUP_GS_SEGMENT (_descr); \
__gs = TLS_SETUP_GS_SEGMENT (_descr, firstcall); \
if (__builtin_expect (__gs, 7) != -1) \
{ \
asm ("movw %w0, %%gs" : : "q" (__gs)); \

2
linuxthreads/sysdeps/sh/tls.h
View File

@ -87,7 +87,7 @@ typedef struct
/* Code to initially initialize the thread pointer. This might need
special attention since 'errno' is not yet available and if the
operation can cause a failure 'errno' must not be touched. */
# define TLS_INIT_TP(descr) \
# define TLS_INIT_TP(descr, firstcall) \
({ \
void *_descr = (descr); \
int result; \

4
sysdeps/generic/libc-tls.c
View File

@ -137,10 +137,10 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign)
INSTALL_DTV ((char *) tlsblock + tcb_offset, static_dtv);
TLS_INIT_TP ((char *) tlsblock + tcb_offset);
TLS_INIT_TP ((char *) tlsblock + tcb_offset, 1);
# elif TLS_DTV_AT_TP
INSTALL_DTV (tlsblock, static_dtv);
TLS_INIT_TP (tlsblock);
TLS_INIT_TP (tlsblock, 1);
# else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif

6
sysdeps/generic/tls.h
View File

@ -65,10 +65,12 @@
use the value.
TLS_INIT_TP(tcb)
TLS_INIT_TP(tcb, firstcall)
This macro must initialize the thread pointer to enable normal TLS
operation. The parameter is a pointer to the thread control block.
operation. The first parameter is a pointer to the thread control
block. The second parameter specifies whether this is the first
call for the TCB. ld.so calls this macro more than once.
THREAD_DTV()