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| author | bors <bors@rust-lang.org> | 2017-07-19 05:39:14 +0000 |
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| committer | bors <bors@rust-lang.org> | 2017-07-19 05:39:14 +0000 |
| commit | 4e56bbeb19c48edf6a211448a6fb5b67b29eceec (patch) | |
| tree | 274e665d416a6c8f93ffe0a1b0dbbfd9ec96a5f9 /src/rustllvm/RustWrapper.cpp | |
| parent | 88e2c396a4062d59ca6be3a74ac432bd1f878942 (diff) | |
| parent | 2161fb25ca9986c11212e447d88da592bcf736ce (diff) | |
| download | rust-4e56bbeb19c48edf6a211448a6fb5b67b29eceec.tar.gz rust-4e56bbeb19c48edf6a211448a6fb5b67b29eceec.zip | |
Auto merge of #43170 - kyrias:full-relro, r=alexcrichton
Add support for full RELRO This commit adds support for full RELRO, and enables it for the platforms I know have support for it. Full RELRO makes the PLT+GOT data read-only on startup, preventing it from being overwritten. http://tk-blog.blogspot.com/2009/02/relro-not-so-well-known-memory.html Fixes rust-lang/rust#29877. --- I'm not entirely certain if this is the best way to do it, but I figured mimicking the way it's done for PIE seemed like a good start at least. I'm not sure whether we want to have it enabled by default globally and then disabling it explicitly for targets that don't support it though. I'm also not sure whether the `full_relro` function should call `bug!()` or something like it for linkers that don't support it rather than no-opping.
Diffstat (limited to 'src/rustllvm/RustWrapper.cpp')
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