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| author | Daniel Dragan <bulk88@hotmail.com> | 2012-07-16 16:02:45 -0400 |
|---|---|---|
| committer | Jan Dubois <jand@activestate.com> | 2012-07-18 15:30:30 -0700 |
| commit | 12a2785c7e86f586a05cad9ff90ce673c68c3115 (patch) | |
| tree | b1debe71307e649ac7b751f5e1feab5456896f7c /win32/win32.h | |
| parent | 6db9054f2b5640f8df429d7daec73a0d5af01a8a (diff) | |
| download | perl-12a2785c7e86f586a05cad9ff90ce673c68c3115.tar.gz | |
Adding support for Visual C's __declspec(noreturn) function declarations to perl
This will reduce the machine code size on Visual C Perl, by removing C stack
clean up opcodes and possible jmp opcodes after croak() and similar
functions. Perl's existing __attribute__noreturn__ macro (and therefore
GCC's __attribute__((noreturn)) ) is fundamentally incompatible with MS's
implementation for noreturn functions. win32.h already has _MSC_VER
aware code blocks, so adding more isn't a problem.
Diffstat (limited to 'win32/win32.h')
| -rw-r--r-- | win32/win32.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/win32/win32.h b/win32/win32.h index e906266a4a..2c821eb24e 100644 --- a/win32/win32.h +++ b/win32/win32.h @@ -66,8 +66,14 @@ #if !defined(PERLDLL) && !defined(PERL_EXT_RE_BUILD) # ifdef __cplusplus # define PERL_CALLCONV extern "C" __declspec(dllimport) +# ifdef _MSC_VER +# define PERL_CALLCONV_NO_RET extern "C" __declspec(dllimport, noreturn) +# endif # else # define PERL_CALLCONV __declspec(dllimport) +# ifdef _MSC_VER +# define PERL_CALLCONV_NO_RET __declspec(dllimport, noreturn) +# endif # endif #endif |