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2.7.1p83(2020-03-31revisiona0c7c23c9cec0d0ffcba012279cd652d28ad5bf3)
ext
fiddle
libffi-3.2.1
testsuite
libffi.call
return_sl.c
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/* Area: ffi_call
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Purpose: Check if long as return type is handled correctly.
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Limitations: none.
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PR: none.
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*/
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/* { dg-do run } */
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#include "
ffitest.h
"
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static
long
return_sl(
long
l1,
long
l2)
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{
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return
l1 - l2;
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}
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int
main
(
void
)
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{
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ffi_cif cif;
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ffi_type *args[
MAX_ARGS
];
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void
*values[
MAX_ARGS
];
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ffi_arg
res;
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unsigned
long
l1, l2;
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args[0] = &ffi_type_slong;
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args[1] = &ffi_type_slong;
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values[0] = &l1;
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values[1] = &l2;
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CHECK
(
ffi_prep_cif
(&cif,
FFI_DEFAULT_ABI
, 2,
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&ffi_type_slong, args) == FFI_OK);
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l1 = 1073741823
L
;
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l2 = 1073741824
L
;
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ffi_call
(&cif, FFI_FN(return_sl), &res, values);
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printf
(
"res: %ld, %ld\n"
, (
long
)res, l1 - l2);
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/* { dg-output "res: -1, -1" } */
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exit
(0);
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}
ffi_arg
unsigned long ffi_arg
Definition:
ffitarget.h:30
main
int main(void)
Definition:
return_sl.c:14
L
#define L(x)
Definition:
asm.h:125
ffitest.h
CHECK
#define CHECK(sub)
Definition:
compile.c:448
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition:
ffitarget.h:38
ffi_prep_cif
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition:
prep_cif.c:226
MAX_ARGS
#define MAX_ARGS
Definition:
function.c:15
exit
void exit(int __status) __attribute__((__noreturn__))
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition:
ffi.c:813
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