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(_dl_allocate_static_tls): Don't return any value, call dl_signal_error directly. If already relocated, call GL(dl_init_static_tls) directly, otherwise queue it for later. (CHECK_STATIC_TLS): Undo 2003-07-24 change.

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This commit is contained in:
Ulrich Drepper 2003-07-31 07:34:08 +00:00
parent 87d254a7bf
commit 9722e6f3e2
1 changed files with 39 additions and 13 deletions
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52
elf/dl-reloc.c
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@ -40,8 +40,11 @@
dynamically loaded. This can only work if there is enough surplus in
the static TLS area already allocated for each running thread. If this
object's TLS segment is too big to fit, we fail. If it fits,
we set MAP->l_tls_offset and return. */
int
we set MAP->l_tls_offset and return.
This function intentionally does not return any value but signals error
directly, as static TLS should be rare and code handling it should
not be inlined as much as possible. */
void
internal_function __attribute_noinline__
_dl_allocate_static_tls (struct link_map *map)
{
@ -54,14 +57,18 @@ _dl_allocate_static_tls (struct link_map *map)
/* If the alignment requirements are too high fail. */
if (map->l_tls_align > GL(dl_tls_static_align))
return 1;
{
fail:
INTUSE(_dl_signal_error) (0, map->l_name, NULL, N_("\
cannot allocate memory in static TLS block"));
}
# if TLS_TCB_AT_TP
freebytes = GL(dl_tls_static_size) - GL(dl_tls_static_used) - TLS_TCB_SIZE;
blsize = map->l_tls_blocksize + map->l_tls_firstbyte_offset;
if (freebytes < blsize)
return 1;
goto fail;
n = (freebytes - blsize) / map->l_tls_align;
@ -76,11 +83,7 @@ _dl_allocate_static_tls (struct link_map *map)
/* dl_tls_static_used includes the TCB at the beginning. */
if (check > GL(dl_tls_static_size))
{
const char *errstring = N_("\
shared object cannot be dlopen()ed: static TLS memory too small");
INTUSE(_dl_signal_error) (0, (map)->l_name, NULL, errstring);
}
goto fail;
map->l_tls_offset = offset;
GL(dl_tls_static_used) = used;
@ -88,7 +91,32 @@ shared object cannot be dlopen()ed: static TLS memory too small");
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif
return 0;
if (map->l_relocated)
GL(dl_init_static_tls) (map);
else
map->l_need_tls_init = 1;
}
/* Initialize static TLS area and DTV for current (only) thread.
libpthread implementations should provide their own hook
to handle all threads. */
void
_dl_nothread_init_static_tls (struct link_map *map)
{
# if TLS_TCB_AT_TP
void *dest = (char *) THREAD_SELF - map->l_tls_offset;
# elif TLS_DTV_AT_TP
void *dest = (char *) THREAD_SELF + map->l_tls_offset + TLS_PRE_TCB_SIZE;
# else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif
/* Fill in the DTV slot so that a later LD/GD access will find it. */
THREAD_DTV ()[map->l_tls_modid].pointer = dest;
/* Initialize the memory. */
memset (__mempcpy (dest, map->l_tls_initimage, map->l_tls_initimage_size),
'\0', map->l_tls_blocksize - map->l_tls_initimage_size);
}
#endif
@ -229,9 +257,7 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[],
#define CHECK_STATIC_TLS(map, sym_map) \
do { \
if (__builtin_expect ((sym_map)->l_tls_offset == NO_TLS_OFFSET, 0)) \
if (_dl_allocate_static_tls (sym_map) != 0) \
INTUSE(_dl_signal_error) (0, sym_map->l_name, NULL, N_("\
cannot allocate memory in static TLS block")); \
_dl_allocate_static_tls (sym_map); \
} while (0)
#include "dynamic-link.h"