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| author | George Rimar <grimar@accesssoftek.com> | 2016-12-20 11:28:54 +0000 |
|---|---|---|
| committer | George Rimar <grimar@accesssoftek.com> | 2016-12-20 11:28:54 +0000 |
| commit | d003c7f39401ba2ca259f2ebee6874a38282616f (patch) | |
| tree | a42dff58ee2c73bf77a79abf83b8450e933493c6 | |
| parent | 9068938eb0e5c46e506bb26fa8119bca2accf648 (diff) | |
| download | bcm5719-llvm-d003c7f39401ba2ca259f2ebee6874a38282616f.tar.gz bcm5719-llvm-d003c7f39401ba2ca259f2ebee6874a38282616f.zip | |
[ELF] - Treat .openbsd.randomdata as relro section
That was requested by Mark Kettenis in llvm-dev:
"It is the intention that .openbsd.randomdata sections are made
read-only after initialization. The native (ld.bfd based) OpenBSD
toolchain accomplishes this by including .openbsd.randomdata into the
PT_GNU_RELRO segment."
He suggested code change, I added testcase.
Differential revision: https://reviews.llvm.org/D27974
llvm-svn: 290174
| -rw-r--r-- | lld/ELF/Writer.cpp | 2 | ||||
| -rw-r--r-- | lld/test/ELF/relro.s | 7 |
2 files changed, 6 insertions, 3 deletions
diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp index c7ed590dfe7..f0563c43bcd 100644 --- a/lld/ELF/Writer.cpp +++ b/lld/ELF/Writer.cpp @@ -500,7 +500,7 @@ template <class ELFT> bool elf::isRelroSection(const OutputSectionBase *Sec) { return true; StringRef S = Sec->getName(); return S == ".data.rel.ro" || S == ".ctors" || S == ".dtors" || S == ".jcr" || - S == ".eh_frame"; + S == ".eh_frame" || S == ".openbsd.randomdata"; } template <class ELFT> diff --git a/lld/test/ELF/relro.s b/lld/test/ELF/relro.s index 5dbf8975d6e..b21e514303a 100644 --- a/lld/test/ELF/relro.s +++ b/lld/test/ELF/relro.s @@ -19,8 +19,8 @@ // CHECK-NEXT: GNU_RELRO // CHECK: Section to Segment mapping: -// FULLRELRO: 05 .dynamic .got .got.plt {{$}} -// PARTRELRO: 05 .dynamic .got {{$}} +// FULLRELRO: 05 .openbsd.randomdata .dynamic .got .got.plt {{$}} +// PARTRELRO: 05 .openbsd.randomdata .dynamic .got {{$}} // NORELRO-NOT: GNU_RELRO @@ -36,3 +36,6 @@ _start: .zero 4 .section .foo,"aw" .section .bss,"",@nobits + +.section .openbsd.randomdata, "aw" +.quad 0 |
