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nptl: Move stack list variables into _rtld_global

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Now __thread_gscope_wait (the function behind THREAD_GSCOPE_WAIT,
formerly __wait_lookup_done) can be implemented directly in ld.so,
eliminating the unprotected GL (dl_wait_lookup_done) function
pointer.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Florian Weimer
2020-11-16 19:33:30 +01:00
parent aac0f62c47
commit 1daccf403b
37 changed files with 243 additions and 184 deletions
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9
elf/dl-support.c
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@ -183,10 +183,11 @@ ElfW(Word) _dl_stack_flags = DEFAULT_STACK_PERMS;
int (*_dl_make_stack_executable_hook) (void **) = _dl_make_stack_executable;
/* Function in libpthread to wait for termination of lookups. */
void (*_dl_wait_lookup_done) (void);
#if !THREAD_GSCOPE_IN_TCB
#if THREAD_GSCOPE_IN_TCB
list_t _dl_stack_used;
list_t _dl_stack_user;
int _dl_stack_cache_lock;
#else
int _dl_thread_gscope_count;
#endif
struct dl_scope_free_list *_dl_scope_free_list;