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author | green <green@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-26 16:28:02 +0000 |
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committer | green <green@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-26 16:28:02 +0000 |
commit | a65f362a3c42e66434f8dc85661121dd0b39f64e (patch) | |
tree | ef354e445015ccf6c34c675cf123ef8ca5128a8c /libffi/testsuite/libffi.call/va_struct2.c | |
parent | 582018c37a8346022b2593beab799145ed146b19 (diff) | |
download | gcc-a65f362a3c42e66434f8dc85661121dd0b39f64e.tar.gz |
libffi merge
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194722 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libffi/testsuite/libffi.call/va_struct2.c')
-rw-r--r-- | libffi/testsuite/libffi.call/va_struct2.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/libffi/testsuite/libffi.call/va_struct2.c b/libffi/testsuite/libffi.call/va_struct2.c new file mode 100644 index 00000000000..56f5b9c75fa --- /dev/null +++ b/libffi/testsuite/libffi.call/va_struct2.c @@ -0,0 +1,123 @@ +/* Area: ffi_call + Purpose: Test passing struct in variable argument lists. + Limitations: none. + PR: none. + Originator: ARM Ltd. */ + +/* { dg-do run } */ +/* { dg-output "" { xfail avr32*-*-* } } */ + +#include "ffitest.h" +#include <stdarg.h> + +struct small_tag +{ + unsigned char a; + unsigned char b; +}; + +struct large_tag +{ + unsigned a; + unsigned b; + unsigned c; + unsigned d; + unsigned e; +}; + +static struct small_tag +test_fn (int n, ...) +{ + va_list ap; + struct small_tag s1; + struct small_tag s2; + struct large_tag l; + + va_start (ap, n); + s1 = va_arg (ap, struct small_tag); + l = va_arg (ap, struct large_tag); + s2 = va_arg (ap, struct small_tag); + printf ("%u %u %u %u %u %u %u %u %u\n", s1.a, s1.b, l.a, l.b, l.c, l.d, l.e, + s2.a, s2.b); + va_end (ap); + s1.a += s2.a; + s1.b += s2.b; + return s1; +} + +int +main (void) +{ + ffi_cif cif; + void* args[5]; + ffi_type* arg_types[5]; + + ffi_type s_type; + ffi_type *s_type_elements[3]; + + ffi_type l_type; + ffi_type *l_type_elements[6]; + + struct small_tag s1; + struct small_tag s2; + struct large_tag l1; + + int n; + struct small_tag res; + + s_type.size = 0; + s_type.alignment = 0; + s_type.type = FFI_TYPE_STRUCT; + s_type.elements = s_type_elements; + + s_type_elements[0] = &ffi_type_uchar; + s_type_elements[1] = &ffi_type_uchar; + s_type_elements[2] = NULL; + + l_type.size = 0; + l_type.alignment = 0; + l_type.type = FFI_TYPE_STRUCT; + l_type.elements = l_type_elements; + + l_type_elements[0] = &ffi_type_uint; + l_type_elements[1] = &ffi_type_uint; + l_type_elements[2] = &ffi_type_uint; + l_type_elements[3] = &ffi_type_uint; + l_type_elements[4] = &ffi_type_uint; + l_type_elements[5] = NULL; + + arg_types[0] = &ffi_type_sint; + arg_types[1] = &s_type; + arg_types[2] = &l_type; + arg_types[3] = &s_type; + arg_types[4] = NULL; + + CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 4, &s_type, arg_types) == FFI_OK); + + s1.a = 5; + s1.b = 6; + + l1.a = 10; + l1.b = 11; + l1.c = 12; + l1.d = 13; + l1.e = 14; + + s2.a = 7; + s2.b = 8; + + n = 41; + + args[0] = &n; + args[1] = &s1; + args[2] = &l1; + args[3] = &s2; + args[4] = NULL; + + ffi_call(&cif, FFI_FN(test_fn), &res, args); + /* { dg-output "5 6 10 11 12 13 14 7 8" } */ + printf("res: %d %d\n", res.a, res.b); + /* { dg-output "\nres: 12 14" } */ + + return 0; +} |