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Diffstat (limited to 'c/src/tests/libffi/ffitest/ffitest.c')
| -rw-r--r-- | c/src/tests/libffi/ffitest/ffitest.c | 735 |
1 files changed, 735 insertions, 0 deletions
diff --git a/c/src/tests/libffi/ffitest/ffitest.c b/c/src/tests/libffi/ffitest/ffitest.c new file mode 100644 index 0000000000..abc09a97b7 --- /dev/null +++ b/c/src/tests/libffi/ffitest/ffitest.c @@ -0,0 +1,735 @@ +/* ----------------------------------------------------------------------- + ffitest.c - Copyright (c) 1996, 1997, 1998 Cygnus Solutions + + $Id$ + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + ``Software''), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR + OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + OTHER DEALINGS IN THE SOFTWARE. + ----------------------------------------------------------------------- */ + +#include <ffi.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <float.h> +#include <rtems.h> +#include <rtems/error.h> + +/* This is lame. Long double support is barely there under SunOS 4.x */ +#if defined(SPARC) && (SIZEOF_LONG_DOUBLE != 16) +#define BROKEN_LONG_DOUBLE +#endif + +#define CHECK(x) !(x) ? fail(__FILE__, __LINE__) : 0 + +static int fail(char *file, int line) +{ + fprintf(stderr, "Test failure: %s line %d\n", file, line); + exit(EXIT_FAILURE); + /*@notreached@*/ + return 0; +} + +#define MAX_ARGS 256 + +static size_t my_strlen(char *s) +{ + return (strlen(s)); +} + +static int promotion(signed char sc, signed short ss, + unsigned char uc, unsigned short us) +{ + int r = (int) sc + (int) ss + (int) uc + (int) us; + + return r; +} + +static signed char return_sc(signed char sc) +{ + return sc; +} + +static unsigned char return_uc(unsigned char uc) +{ + return uc; +} + +static long long return_ll(long long ll) +{ + return ll; +} + +static int floating(int a, float b, double c, long double d, int e) +{ + int i; + +#if 0 + /* This is ifdef'd out for now. long double support under SunOS/gcc + is pretty much non-existent. You'll get the odd bus error in library + routines like printf(). */ + printf("%d %f %f %Lf %d\n", a, (double)b, c, d, e); +#endif + + i = (int) ((float)a/b + ((float)c/(float)d)); + + return i; +} + +static float many(float f1, + float f2, + float f3, + float f4, + float f5, + float f6, + float f7, + float f8, + float f9, + float f10, + float f11, + float f12, + float f13) +{ +#if 0 + printf("%f %f %f %f %f %f %f %f %f %f %f %f %f\n", + (double) f1, (double) f2, (double) f3, (double) f4, (double) f5, + (double) f6, (double) f7, (double) f8, (double) f9, (double) f10, + (double) f11, (double) f12, (double) f13); +#endif + + return ((f1/f2+f3/f4+f5/f6+f7/f8+f9/f10+f11/f12) * f13); +} + +static double dblit(float f) +{ + return f/3.0; +} + +static long double ldblit(float f) +{ + return (long double) (((long double) f)/ (long double) 3.0); +} + +typedef struct +{ + unsigned char uc; + double d; + unsigned int ui; +} test_structure_1; + +typedef struct +{ + double d1; + double d2; +} test_structure_2; + +typedef struct +{ + int si; +} test_structure_3; + +typedef struct +{ + unsigned ui1; + unsigned ui2; + unsigned ui3; +} test_structure_4; + +typedef struct +{ + char c1; + char c2; +} test_structure_5; + +static test_structure_1 struct1(test_structure_1 ts) +{ + /*@-type@*/ + ts.uc++; + /*@=type@*/ + ts.d--; + ts.ui++; + + return ts; +} + +static test_structure_2 struct2(test_structure_2 ts) +{ + ts.d1--; + ts.d2--; + + return ts; +} + +static test_structure_3 struct3(test_structure_3 ts) +{ + ts.si = -(ts.si*2); + + return ts; +} + +static test_structure_4 struct4(test_structure_4 ts) +{ + ts.ui3 = ts.ui1 * ts.ui2 * ts.ui3; + + return ts; +} + +static test_structure_5 struct5(test_structure_5 ts1, test_structure_5 ts2) +{ + ts1.c1 += ts2.c1; + ts1.c2 -= ts2.c2; + + return ts1; +} + +/* Take an int and a float argument, together with int userdata, and */ +/* return the sum. */ +static void closure_test_fn(ffi_cif* cif,void* resp,void** args, void* userdata) +{ + *(int*)resp = + *(int *)args[0] + (int)(*(float *)args[1]) + (int)(long)userdata; +} + +typedef int (*closure_test_type)(int, float); + +int ffi_main( void ) +{ + ffi_cif cif; + ffi_type *args[MAX_ARGS]; + void *values[MAX_ARGS]; + char *s; + signed char sc; + unsigned char uc; + signed short ss; + unsigned short us; + unsigned long ul; + long long ll; + float f; + double d; + long double ld; + signed int si1; + signed int si2; + +#if defined(ALPHA) || defined(IA64) || defined(SPARC64) || (defined(MIPS) && (_MIPS_SIM == _ABIN32)) + long long rint; +#else + int rint; +#endif + long long rlonglong; + + ffi_type ts1_type; + ffi_type ts2_type; + ffi_type ts3_type; + ffi_type ts4_type; + ffi_type ts5_type; + ffi_type *ts1_type_elements[4]; + ffi_type *ts2_type_elements[3]; + ffi_type *ts3_type_elements[2]; + ffi_type *ts4_type_elements[4]; + ffi_type *ts5_type_elements[3]; + + ts1_type.size = 0; + ts1_type.alignment = 0; + ts1_type.type = FFI_TYPE_STRUCT; + + ts2_type.size = 0; + ts2_type.alignment = 0; + ts2_type.type = FFI_TYPE_STRUCT; + + ts3_type.size = 0; + ts3_type.alignment = 0; + ts3_type.type = FFI_TYPE_STRUCT; + + ts4_type.size = 0; + ts4_type.alignment = 0; + ts4_type.type = FFI_TYPE_STRUCT; + + ts5_type.size = 0; + ts5_type.alignment = 0; + ts5_type.type = FFI_TYPE_STRUCT; + + /*@-immediatetrans@*/ + ts1_type.elements = ts1_type_elements; + ts2_type.elements = ts2_type_elements; + ts3_type.elements = ts3_type_elements; + ts4_type.elements = ts4_type_elements; + ts5_type.elements = ts5_type_elements; + /*@=immediatetrans@*/ + + ts1_type_elements[0] = &ffi_type_uchar; + ts1_type_elements[1] = &ffi_type_double; + ts1_type_elements[2] = &ffi_type_uint; + ts1_type_elements[3] = NULL; + + ts2_type_elements[0] = &ffi_type_double; + ts2_type_elements[1] = &ffi_type_double; + ts2_type_elements[2] = NULL; + + ts3_type_elements[0] = &ffi_type_sint; + ts3_type_elements[1] = NULL; + + ts4_type_elements[0] = &ffi_type_uint; + ts4_type_elements[1] = &ffi_type_uint; + ts4_type_elements[2] = &ffi_type_uint; + ts4_type_elements[3] = NULL; + + ts5_type_elements[0] = &ffi_type_schar; + ts5_type_elements[1] = &ffi_type_schar; + ts5_type_elements[2] = NULL; + + ul = 0; + + /* return value tests */ + { +#if defined(MIPS) /* || defined(ARM) */ + puts ("long long tests not run. This is a known bug on this architecture."); +#else + args[0] = &ffi_type_sint64; + values[0] = ≪ + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ffi_type_sint64, args) == FFI_OK); + + for (ll = 0LL; ll < 100LL; ll++) + { + ul++; + ffi_call(&cif, FFI_FN(return_ll), &rlonglong, values); + CHECK(rlonglong == ll); + } + + for (ll = 55555555555000LL; ll < 55555555555100LL; ll++) + { + ul++; + ffi_call(&cif, FFI_FN(return_ll), &rlonglong, values); + CHECK(rlonglong == ll); + } +#endif + + args[0] = &ffi_type_schar; + values[0] = ≻ + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ffi_type_schar, args) == FFI_OK); + + for (sc = (signed char) -127; + sc < (signed char) 127; /*@-type@*/ sc++ /*@=type@*/) + { + ul++; + ffi_call(&cif, FFI_FN(return_sc), &rint, values); + CHECK(rint == (int) sc); + } + + args[0] = &ffi_type_uchar; + values[0] = &uc; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ffi_type_uchar, args) == FFI_OK); + + for (uc = (unsigned char) '\x00'; + uc < (unsigned char) '\xff'; /*@-type@*/ uc++ /*@=type@*/) + { + ul++; + ffi_call(&cif, FFI_FN(return_uc), &rint, values); + CHECK(rint == (signed int) uc); + } + + printf("%lu return value tests run\n", ul); + } + +#ifdef BROKEN_LONG_DOUBLE + printf ("This architecture has broken `long double' support. No floating point\ntests have been run.\n"); +#else + /* float arg tests */ + { + args[0] = &ffi_type_float; + values[0] = &f; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ffi_type_longdouble, args) == FFI_OK); + + f = 3.14159; + +#if 0 + /* This is ifdef'd out for now. long double support under SunOS/gcc + is pretty much non-existent. You'll get the odd bus error in library + routines like printf(). */ + printf ("%Lf\n", ldblit(f)); +#endif + ld = 666; + ffi_call(&cif, FFI_FN(ldblit), &ld, values); + +#if 0 + /* This is ifdef'd out for now. long double support under SunOS/gcc + is pretty much non-existent. You'll get the odd bus error in library + routines like printf(). */ + printf ("%Lf, %Lf, %Lf, %Lf\n", ld, ldblit(f), ld - ldblit(f), LDBL_EPSILON); +#endif + + /* These are not always the same!! Check for a reasonable delta */ + /*@-realcompare@*/ + if (ld - ldblit(f) < LDBL_EPSILON) + /*@=realcompare@*/ + puts("long double return value tests ok!"); + else + CHECK(0); + } + + /* float arg tests */ + { + args[0] = &ffi_type_sint; + values[0] = &si1; + args[1] = &ffi_type_float; + values[1] = &f; + args[2] = &ffi_type_double; + values[2] = &d; + args[3] = &ffi_type_longdouble; + values[3] = &ld; + args[4] = &ffi_type_sint; + values[4] = &si2; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 5, + &ffi_type_sint, args) == FFI_OK); + + si1 = 6; + f = 3.14159; + d = (double)1.0/(double)3.0; + ld = 2.71828182846L; + si2 = 10; + + floating (si1, f, d, ld, si2); + + ffi_call(&cif, FFI_FN(floating), &rint, values); + + printf ("%d vs %d\n", rint, floating (si1, f, d, ld, si2)); + + CHECK(rint == floating(si1, f, d, ld, si2)); + + printf("float arg tests ok!\n"); + } +#endif + + /* strlen tests */ + { + args[0] = &ffi_type_pointer; + values[0] = (void*) &s; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ffi_type_sint, args) == FFI_OK); + + s = "a"; + ffi_call(&cif, FFI_FN(my_strlen), &rint, values); + CHECK(rint == 1); + + s = "1234567"; + ffi_call(&cif, FFI_FN(my_strlen), &rint, values); + CHECK(rint == 7); + + s = "1234567890123456789012345"; + ffi_call(&cif, FFI_FN(my_strlen), &rint, values); + CHECK(rint == 25); + + printf("strlen tests passed\n"); + } + + /* float arg tests */ + { + args[0] = &ffi_type_float; + values[0] = &f; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ffi_type_double, args) == FFI_OK); + + f = 3.14159; + + ffi_call(&cif, FFI_FN(dblit), &d, values); + + /* These are not always the same!! Check for a reasonable delta */ + /*@-realcompare@*/ + CHECK(d - dblit(f) < DBL_EPSILON); + /*@=realcompare@*/ + + printf("double return value tests ok!\n"); + } + + /* many arg tests */ + { + float ff; + float fa[13]; + + for (ul = 0; ul < 13; ul++) + { + args[ul] = &ffi_type_float; + values[ul] = &fa[ul]; + fa[ul] = (float) ul; + } + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 13, + &ffi_type_float, args) == FFI_OK); + + /*@-usedef@*/ + ff = many(fa[0], fa[1], + fa[2], fa[3], + fa[4], fa[5], + fa[6], fa[7], + fa[8], fa[9], + fa[10],fa[11],fa[12]); + /*@=usedef@*/ + + ffi_call(&cif, FFI_FN(many), &f, values); + + /*@-realcompare@*/ + if (f - ff < FLT_EPSILON) + /*@=realcompare@*/ + printf("many arg tests ok!\n"); + else +#ifdef POWERPC + printf("many arg tests failed! This is a gcc bug.\n"); +#else + CHECK(0); +#endif + } + + /* promotion tests */ + { + args[0] = &ffi_type_schar; + args[1] = &ffi_type_sshort; + args[2] = &ffi_type_uchar; + args[3] = &ffi_type_ushort; + values[0] = ≻ + values[1] = &ss; + values[2] = &uc; + values[3] = &us; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4, + &ffi_type_sint, args) == FFI_OK); + + us = 0; + ul = 0; + + for (sc = (signed char) -127; + sc <= (signed char) 120; /*@-type@*/ sc += 1 /*@=type@*/) + for (ss = -30000; ss <= 30000; ss += 10000) + for (uc = (unsigned char) 0; + uc <= (unsigned char) 200; /*@-type@*/ uc += 20 /*@=type@*/) + for (us = 0; us <= 60000; us += 10000) + { + ul++; + ffi_call(&cif, FFI_FN(promotion), &rint, values); + CHECK(rint == (int) sc + (int) ss + (int) uc + (int) us); + } + printf("%lu promotion tests run\n", ul); + } + + /* struct tests */ + { + test_structure_1 ts1_arg; + /* This is a hack to get a properly aligned result buffer */ + test_structure_1 *ts1_result = + (test_structure_1 *) malloc (sizeof(test_structure_1)); + if (! ts1_result ) + rtems_panic("Could not get memory for struct 1 result."); + args[0] = &ts1_type; + values[0] = &ts1_arg; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ts1_type, args) == FFI_OK); + + ts1_arg.uc = '\x01'; + ts1_arg.d = 3.14159; + ts1_arg.ui = 555; + + ffi_call(&cif, FFI_FN(struct1), ts1_result, values); + + CHECK(ts1_result->ui == 556); + CHECK(ts1_result->d == 3.14159 - 1); + + puts ("structure test 1 ok!\n"); + + free (ts1_result); + } + + /* struct tests */ + { + test_structure_2 ts2_arg; + + /* This is a hack to get a properly aligned result buffer */ + test_structure_2 *ts2_result = + (test_structure_2 *) malloc (sizeof(test_structure_2)); + + args[0] = &ts2_type; + values[0] = &ts2_arg; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ts2_type, args) == FFI_OK); + + ts2_arg.d1 = 5.55; + ts2_arg.d2 = 6.66; + + printf ("%g\n", ts2_result->d1); + printf ("%g\n", ts2_result->d2); + + ffi_call(&cif, FFI_FN(struct2), ts2_result, values); + + printf ("%g\n", ts2_result->d1); + printf ("%g\n", ts2_result->d2); + + CHECK(ts2_result->d1 == 5.55 - 1); + CHECK(ts2_result->d2 == 6.66 - 1); + + printf("structure test 2 ok!\n"); + + free (ts2_result); + } + + /* struct tests */ + { + int compare_value; + test_structure_3 ts3_arg; + test_structure_3 *ts3_result = + (test_structure_3 *) malloc (sizeof(test_structure_3)); + + args[0] = &ts3_type; + values[0] = &ts3_arg; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ts3_type, args) == FFI_OK); + + ts3_arg.si = -123; + compare_value = ts3_arg.si; + + ffi_call(&cif, FFI_FN(struct3), ts3_result, values); + + printf ("%d %d\n", ts3_result->si, -(compare_value*2)); + + if (ts3_result->si == -(ts3_arg.si*2)) + puts ("structure test 3 ok!"); + else + { + puts ("Structure test 3 found structure passing bug."); + puts (" Current versions of GCC are not 100% compliant with the"); + puts (" n32 ABI. There is a known problem related to passing"); + puts (" small structures. Send a bug report to the gcc maintainers."); + } + + free (ts3_result); + } + + /* struct tests */ + { + test_structure_4 ts4_arg; + + /* This is a hack to get a properly aligned result buffer */ + test_structure_4 *ts4_result = + (test_structure_4 *) malloc (sizeof(test_structure_4)); + + args[0] = &ts4_type; + values[0] = &ts4_arg; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, + &ts4_type, args) == FFI_OK); + + ts4_arg.ui1 = 2; + ts4_arg.ui2 = 3; + ts4_arg.ui3 = 4; + + ffi_call (&cif, FFI_FN(struct4), ts4_result, values); + + if (ts4_result->ui3 == 2U * 3U * 4U) + puts ("structure test 4 ok!"); + else + puts ("Structure test 4 found GCC's structure passing bug."); + + free (ts4_result); + } + + /* struct tests */ + { + test_structure_5 ts5_arg1, ts5_arg2; + + /* This is a hack to get a properly aligned result buffer */ + test_structure_5 *ts5_result = + (test_structure_5 *) malloc (sizeof(test_structure_5)); + + args[0] = &ts5_type; + args[1] = &ts5_type; + values[0] = &ts5_arg1; + values[1] = &ts5_arg2; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, + &ts5_type, args) == FFI_OK); + + ts5_arg1.c1 = 2; + ts5_arg1.c2 = 6; + ts5_arg2.c1 = 5; + ts5_arg2.c2 = 3; + + ffi_call (&cif, FFI_FN(struct5), ts5_result, values); + + if (ts5_result->c1 == 7 + && ts5_result->c2 == 3) + puts ("structure test 5 ok!"); + else + puts ("Structure test 5 found GCC's structure passing bug."); + + free (ts5_result); + } + +# if FFI_CLOSURES + /* A simple closure test */ + { + ffi_closure cl; + ffi_type * cl_arg_types[3]; + + cl_arg_types[0] = &ffi_type_sint; + cl_arg_types[1] = &ffi_type_float; + cl_arg_types[2] = NULL; + + /* Initialize the cif */ + CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 2, + &ffi_type_sint, cl_arg_types) == FFI_OK); + + CHECK(ffi_prep_closure(&cl, &cif, closure_test_fn, + (void *) 3 /* userdata */) + == FFI_OK); + CHECK((*((closure_test_type)(&cl)))(1, 2.0) == 6); + } +# endif + + /* If we arrived here, all is good */ + (void) puts("\nLooks good. No surprises.\n"); + + /*@-compdestroy@*/ + + return 0; +} + |