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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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14
nptl_db/td_init.c
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@ -29,3 +29,17 @@ td_init (void)
LOG ("td_init");
return TD_OK;
}
bool
__td_ta_rtld_global (td_thragent_t *ta)
{
if (ta->ta_addr__rtld_global == 0
&& td_mod_lookup (ta->ph, LD_SO, SYM__rtld_global,
&ta->ta_addr__rtld_global) != PS_OK)
{
ta->ta_addr__rtld_global = (void*)-1;
return false;
}
else
return ta->ta_addr__rtld_global != (void*)-1;
}