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powerpc: Move cache line size to rtld_global_ro

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GCC 10.0 enabled -fno-common by default and this started to point that
__cache_line_size had been implemented in 2 different places: loader and
libc.

In order to avoid this duplication, the libc variable has been removed
and the loader variable is moved to rtld_global_ro.

File sysdeps/unix/sysv/linux/powerpc/dl-auxv.h has been added in order
to reuse code for both static and dynamic linking scenarios.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Tulio Magno Quites Machado Filho
2020-01-10 19:14:56 -03:00
parent c908ae0492
commit 18363b4f01
20 changed files with 314 additions and 69 deletions
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17
sysdeps/powerpc/dl-procinfo.c
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@ -89,5 +89,22 @@ PROCINFO_CLASS const char _dl_powerpc_cap_flags[64][15]
,
#endif
#if !IS_IN (ldconfig)
# if !defined PROCINFO_DECL && defined SHARED
._dl_cache_line_size
# else
PROCINFO_CLASS int _dl_cache_line_size
# endif
# ifndef PROCINFO_DECL
= 0
# endif
# if !defined SHARED || defined PROCINFO_DECL
;
# else
,
# endif
#endif
#undef PROCINFO_DECL
#undef PROCINFO_CLASS