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Diffstat (limited to 'spec/ffi/fixtures/ClosureTest.c')
| -rw-r--r-- | spec/ffi/fixtures/ClosureTest.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/spec/ffi/fixtures/ClosureTest.c b/spec/ffi/fixtures/ClosureTest.c index 64ea2b4..dfeabde 100644 --- a/spec/ffi/fixtures/ClosureTest.c +++ b/spec/ffi/fixtures/ClosureTest.c @@ -50,6 +50,21 @@ P(D, double); P(P, const void*); P(UL, unsigned long); +#if defined(_WIN32) && !defined(_WIN64) +bool __stdcall testClosureStdcall(long *a1, void __stdcall(*closure)(void *, long), long a2) { \ + void* sp_pre; + void* sp_post; + + asm volatile (" movl %%esp,%0" : "=g" (sp_pre)); + (*closure)(a1, a2); + asm volatile (" movl %%esp,%0" : "=g" (sp_post)); + + /* %esp before pushing parameters on the stack and after the call returns + * should be equal, if both sides respects the stdcall convention */ + return sp_pre == sp_post; +} +#endif + void testOptionalClosureBrV(void (*closure)(char), char a1) { if (closure) { |