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elf: Introduce is_rtld_link_map

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Unconditionally define it to false for static builds.

This avoids the awkward use of weak_extern for _dl_rtld_map
in checks that cannot be possibly true on static builds.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Florian Weimer
2024-12-20 15:52:57 +01:00
parent 322e9d4e44
commit 2b1dba3eb3
10 changed files with 28 additions and 56 deletions
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elf/rtld.c
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@@ -1960,7 +1960,7 @@ dl_main (const ElfW(Phdr) *phdr,
GL(dl_rtld_map).l_next->l_prev = GL(dl_rtld_map).l_prev;
for (i = 1; i < main_map->l_searchlist.r_nlist; ++i)
if (main_map->l_searchlist.r_list[i] == &GL(dl_rtld_map))
if (is_rtld_link_map (main_map->l_searchlist.r_list[i]))
break;
/* Insert the link map for the dynamic loader into the chain in