mirror of git://sourceware.org/git/glibc.git
81467d4b61
rtld.c has extern const ElfW(Ehdr) __ehdr_start attribute_hidden; ... _dl_rtld_map.l_map_start = (ElfW(Addr)) &__ehdr_start; _dl_rtld_map.l_map_end = (ElfW(Addr)) _end; As https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120653 shows, compiler may generate run-time relocation on __ehdr_start with movq .LC0(%rip), %xmm0 ... .section .data.rel.ro.local,"aw" .align 8 .LC0: .quad __ehdr_start This won't work before run-time relocation is finished in rtld.c. Add optimization barrier to prevent run-time relocations against __ehdr_start and _end. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Sam James <sam@gentoo.org> |
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