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Revert changes in r312891 and go back to stock lld code for rounding the

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PT_GNU_RELRO p_memsz.  This should now work properly for FreeBSD.
This commit is contained in:
Dimitry Andric 2017-06-18 12:59:43 +00:00
parent f32b3b5783
commit 4dd7e43662
1 changed files with 6 additions and 1 deletions
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7
contrib/llvm/tools/lld/ELF/Writer.cpp
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@ -1644,8 +1644,13 @@ template <class ELFT> void Writer<ELFT>::setPhdrs() {
}
if (P.p_type == PT_LOAD)
P.p_align = Config->MaxPageSize;
else if (P.p_type == PT_GNU_RELRO)
else if (P.p_type == PT_GNU_RELRO) {
P.p_align = 1;
// The glibc dynamic loader rounds the size down, so we need to round up
// to protect the last page. This is a no-op on FreeBSD which always
// rounds up.
P.p_memsz = alignTo(P.p_memsz, Target->PageSize);
}
// The TLS pointer goes after PT_TLS. At least glibc will align it,
// so round up the size to make sure the offsets are correct.