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| author | Saleem Abdulrasool <compnerd@compnerd.org> | 2016-06-22 22:09:42 +0000 |
|---|---|---|
| committer | Saleem Abdulrasool <compnerd@compnerd.org> | 2016-06-22 22:09:42 +0000 |
| commit | 4c71a477ac0bd7b19c72d7625861f1f18c15b278 (patch) | |
| tree | c2fd3c01e223cdac2b2042c6d323b2e2f59cd695 /lib/builtins/x86_64 | |
| parent | 1b1a91100eca99b8eef8fa9b5ffe471d3cf27af4 (diff) | |
| download | compiler-rt-4c71a477ac0bd7b19c72d7625861f1f18c15b278.tar.gz | |
builtins: tag with noexecstack
These routines do not require executable stacks. However, by default ELFish
linkers may assume an executable stack on GNUish environments (and some non-GNU
ones too!). The GNU extension to add a note to indicate a non-executable stack
is honoured by these environments to mark the stack as non-executable (the
compiler normally emits this directive on appropriate targets whenever
possible). This allows normal builds from getting executable stacks due to
linking to the compiler rt builtins.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@273500 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/builtins/x86_64')
| -rw-r--r-- | lib/builtins/x86_64/floatundidf.S | 3 | ||||
| -rw-r--r-- | lib/builtins/x86_64/floatundisf.S | 3 | ||||
| -rw-r--r-- | lib/builtins/x86_64/floatundixf.S | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/lib/builtins/x86_64/floatundidf.S b/lib/builtins/x86_64/floatundidf.S index 3cd5d02a7..094a68dc3 100644 --- a/lib/builtins/x86_64/floatundidf.S +++ b/lib/builtins/x86_64/floatundidf.S @@ -47,3 +47,6 @@ DEFINE_COMPILERRT_FUNCTION(__floatundidf) END_COMPILERRT_FUNCTION(__floatundidf) #endif // __x86_64__ + +NO_EXEC_STACK_DIRECTIVE + diff --git a/lib/builtins/x86_64/floatundisf.S b/lib/builtins/x86_64/floatundisf.S index 61952f404..7c9f75e18 100644 --- a/lib/builtins/x86_64/floatundisf.S +++ b/lib/builtins/x86_64/floatundisf.S @@ -33,3 +33,6 @@ DEFINE_COMPILERRT_FUNCTION(__floatundisf) END_COMPILERRT_FUNCTION(__floatundisf) #endif // __x86_64__ + +NO_EXEC_STACK_DIRECTIVE + diff --git a/lib/builtins/x86_64/floatundixf.S b/lib/builtins/x86_64/floatundixf.S index 92961c891..28a096b71 100644 --- a/lib/builtins/x86_64/floatundixf.S +++ b/lib/builtins/x86_64/floatundixf.S @@ -66,3 +66,6 @@ END_COMPILERRT_FUNCTION(__floatundixf) #endif // __x86_64__ */ + +NO_EXEC_STACK_DIRECTIVE + |