diff options
| author | Fangrui Song <[email protected]> | 2019-09-19 00:04:29 -0700 |
|---|---|---|
| committer | Nobuyoshi Nakada <[email protected]> | 2019-09-21 13:24:58 +0900 |
| commit | e006b992c29decb01865b0749e35a4cfc872bdaf (patch) | |
| tree | e17f2049abd0a273ea9dc6980b9968f86bbda42e /tool/m4 | |
| parent | 27144de2bd95c5886c3d4400c3b8aea932b856f1 (diff) | |
typedef rb_jmpbuf_t to void *[5] if __builtin_setjmp is used
The built-in version operates on a buffer of 5 words, much smaller than
the size of jmp_buf defined in libc.
Note, powerpc requires 5 words, while arm and x86_64 just require 3.
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/2471
Diffstat (limited to 'tool/m4')
| -rw-r--r-- | tool/m4/ruby_setjmp_type.m4 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tool/m4/ruby_setjmp_type.m4 b/tool/m4/ruby_setjmp_type.m4 index e054a544c5..9da9a88680 100644 --- a/tool/m4/ruby_setjmp_type.m4 +++ b/tool/m4/ruby_setjmp_type.m4 @@ -47,6 +47,6 @@ AS_IF([test x$setjmp_prefix:$setjmp_sigmask = xsig:], [ AC_MSG_RESULT(${setjmp_prefix}setjmp${setjmp_suffix}${setjmp_cast:+\($setjmp_cast\)}${setjmp_sigmask}) AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp${setjmp_suffix}($setjmp_cast(env)${setjmp_sigmask})]) AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp($setjmp_cast(env),val)]) -AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf) +AS_IF([test x$setjmp_prefix != x__builtin_], AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf)) AS_IF([test x$setjmp_suffix = xex], [AC_DEFINE_UNQUOTED(RUBY_USE_SETJMPEX, 1)]) ])dnl |