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| author | Armin Rigo <arigo@tunes.org> | 2020-07-21 20:25:56 +0200 |
|---|---|---|
| committer | Armin Rigo <arigo@tunes.org> | 2020-07-21 20:25:56 +0200 |
| commit | 764eadc587f8ab2d67389bb1c1f850921b9f1bae (patch) | |
| tree | 94586ff582574ccba8cc08871a8aff911bc0ec64 /c | |
| parent | 8cc7ea55cdac358b4520d12e86c5882ba4c00824 (diff) | |
| download | cffi-764eadc587f8ab2d67389bb1c1f850921b9f1bae.tar.gz | |
more of the same, for win64
Diffstat (limited to 'c')
| -rw-r--r-- | c/libffi_msvc/ffi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/c/libffi_msvc/ffi.c b/c/libffi_msvc/ffi.c index 8a56c87..b9e324f 100644 --- a/c/libffi_msvc/ffi.c +++ b/c/libffi_msvc/ffi.c @@ -451,6 +451,11 @@ ffi_prep_closure_loc (ffi_closure* closure, || cif->arg_types[3]->type == FFI_TYPE_DOUBLE)) mask |= 8; + /* if we return a non-small struct, then the first argument is a pointer + * to the return area, and all real arguments are shifted by one */ + if (cif->flags == FFI_TYPE_STRUCT) + mask = (mask & ~8) << 1; + /* 41 BB ---- mov r11d,mask */ BYTES("\x41\xBB"); INT(mask); |