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| author | Rickard Green <[email protected]> | 2016-02-15 15:26:45 +0100 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2016-02-17 16:03:12 +0100 |
| commit | 661aeed3ef57de87330123adf6100e179fd7dad0 (patch) | |
| tree | 1176ea4d44fdf7456e3bfeab78fc33fcaaf5a8c9 /erts/include/internal/ethread_header_config.h.in | |
| parent | d96471b3f404f7341279d8598dd74d92fb1a923c (diff) | |
| download | otp-661aeed3ef57de87330123adf6100e179fd7dad0.tar.gz otp-661aeed3ef57de87330123adf6100e179fd7dad0.tar.bz2 otp-661aeed3ef57de87330123adf6100e179fd7dad0.zip | |
Improve cmpxchg8b inline asm configure test
Diffstat (limited to 'erts/include/internal/ethread_header_config.h.in')
| -rw-r--r-- | erts/include/internal/ethread_header_config.h.in | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/erts/include/internal/ethread_header_config.h.in b/erts/include/internal/ethread_header_config.h.in index 9cabd0591a..f4b08cfced 100644 --- a/erts/include/internal/ethread_header_config.h.in +++ b/erts/include/internal/ethread_header_config.h.in @@ -166,6 +166,10 @@ /* Define if you use a gcc that supports the double word cmpxchg instruction */ #undef ETHR_GCC_HAVE_DW_CMPXCHG_ASM_SUPPORT +/* Define if gcc wont let you clobber ebx with cmpxchg8b and position + independent code */ +#undef ETHR_CMPXCHG8B_PIC_NO_CLOBBER_EBX + /* Define if you get a register shortage with cmpxchg8b and position independent code */ #undef ETHR_CMPXCHG8B_REGISTER_SHORTAGE |