diff options
| -rw-r--r-- | tests/lib/Makefile.inc | 3 | ||||
| -rw-r--r-- | tests/lib/libgcc-test.c | 132 |
2 files changed, 135 insertions, 0 deletions
diff --git a/tests/lib/Makefile.inc b/tests/lib/Makefile.inc index 6750353321..028db73add 100644 --- a/tests/lib/Makefile.inc +++ b/tests/lib/Makefile.inc @@ -31,6 +31,7 @@ tests-y += rtc-test tests-y += spd_cache-ddr3-test tests-y += spd_cache-ddr4-test tests-y += cbmem_stage_cache-test +tests-y += libgcc-test string-test-srcs += tests/lib/string-test.c string-test-srcs += src/lib/string.c @@ -177,3 +178,5 @@ cbmem_stage_cache-test-srcs += src/lib/imd.c cbmem_stage_cache-test-cflags += -I 3rdparty/vboot/firmware/include cbmem_stage_cache-test-cflags += -I $(src)/commonlib/include cbmem_stage_cache-test-config += CONFIG_CBMEM_STAGE_CACHE=1 + +libgcc-test-srcs += tests/lib/libgcc-test.c diff --git a/tests/lib/libgcc-test.c b/tests/lib/libgcc-test.c new file mode 100644 index 0000000000..3bdd145134 --- /dev/null +++ b/tests/lib/libgcc-test.c @@ -0,0 +1,132 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include "../lib/libgcc.c" + +#include <tests/test.h> +#include <stdlib.h> +#include <string.h> + +struct { + u32 value; + int expected_output; +} test_data[] = { + /* GCC documentation says, __clzsi2() has undefined result for zero as an input value, + but coreboot implementation can handle this. */ + { .value = 0, .expected_output = 32 }, + + { .value = 1, .expected_output = 31 }, + { .value = 2, .expected_output = 30 }, + { .value = 3, .expected_output = 30 }, + { .value = 4, .expected_output = 29 }, + { .value = 5, .expected_output = 29 }, + { .value = 6, .expected_output = 29 }, + { .value = 7, .expected_output = 29 }, + + { .value = 0xF, .expected_output = 28 }, + { .value = 0x10, .expected_output = 27 }, + { .value = 0x25, .expected_output = 26 }, + { .value = 0x5D, .expected_output = 25 }, + { .value = 0xB7, .expected_output = 24 }, + + { .value = 0x133, .expected_output = 23 }, + { .value = 0x3DC, .expected_output = 22 }, + { .value = 0x6F1, .expected_output = 21 }, + { .value = 0x897, .expected_output = 20 }, + + { .value = 0x1FFF, .expected_output = 19 }, + { .value = 0x2222, .expected_output = 18 }, + { .value = 0x7BAD, .expected_output = 17 }, + { .value = 0xE708, .expected_output = 16 }, + + { .value = 0x1DABD, .expected_output = 15 }, + { .value = 0x29876, .expected_output = 14 }, + { .value = 0x56665, .expected_output = 13 }, + { .value = 0xABCDE, .expected_output = 12 }, + + { .value = 0x18365F, .expected_output = 11 }, + { .value = 0x3D0115, .expected_output = 10 }, + { .value = 0x4B07EB, .expected_output = 9 }, + { .value = 0xCCC74D, .expected_output = 8 }, + + { .value = 0x17933ED, .expected_output = 7 }, + { .value = 0x2B00071, .expected_output = 6 }, + { .value = 0x4D4C1A5, .expected_output = 5 }, + { .value = 0xAD01FFF, .expected_output = 4 }, + + { .value = 0x1C5A8057, .expected_output = 3 }, + { .value = 0x35AB23C3, .expected_output = 2 }, + { .value = 0x7017013B, .expected_output = 1 }, + { .value = 0xAD01EB15, .expected_output = 0 }, + + { .value = 0xFFFFFFFF, .expected_output = 0 }, + { .value = 0x80000000, .expected_output = 0 }, + { .value = 0x7FFFFFFF, .expected_output = 1 }, + { .value = 0x30000000, .expected_output = 2 }, + { .value = 0x10000000, .expected_output = 3 }, + { .value = 0x0FFFFFFF, .expected_output = 4 }, + + { .value = 0xFF000000, .expected_output = 0 }, + { .value = 0x00FF0000, .expected_output = 8 }, + { .value = 0x0000FF00, .expected_output = 16 }, + { .value = 0x000000FF, .expected_output = 24 }, + + { .value = 0x8F000000, .expected_output = 0 }, + { .value = 0x008F0000, .expected_output = 8 }, + { .value = 0x00008F00, .expected_output = 16 }, + { .value = 0x0000008F, .expected_output = 24 }, + + { .value = 0x7F000000, .expected_output = 1 }, + { .value = 0x007F0000, .expected_output = 9 }, + { .value = 0x00007F00, .expected_output = 17 }, + { .value = 0x0000007F, .expected_output = 25 }, + + { .value = 0x3F000000, .expected_output = 2 }, + { .value = 0x003F0000, .expected_output = 10 }, + { .value = 0x00003F00, .expected_output = 18 }, + { .value = 0x0000003F, .expected_output = 26 }, + + { .value = 0x1F000000, .expected_output = 3 }, + { .value = 0x001F0000, .expected_output = 11 }, + { .value = 0x00001F00, .expected_output = 19 }, + { .value = 0x0000001F, .expected_output = 27 }, + + { .value = 0x0F000000, .expected_output = 4 }, + { .value = 0x000F0000, .expected_output = 12 }, + { .value = 0x00000F00, .expected_output = 20 }, + { .value = 0x0000000F, .expected_output = 28 }, + + { .value = 0x08000000, .expected_output = 4 }, + { .value = 0x00080000, .expected_output = 12 }, + { .value = 0x00000800, .expected_output = 20 }, + { .value = 0x00000008, .expected_output = 28 }, + + { .value = 0x07000000, .expected_output = 5 }, + { .value = 0x00070000, .expected_output = 13 }, + { .value = 0x00000700, .expected_output = 21 }, + { .value = 0x00000007, .expected_output = 29 }, + + { .value = 0x03000000, .expected_output = 6 }, + { .value = 0x00030000, .expected_output = 14 }, + { .value = 0x00000300, .expected_output = 22 }, + { .value = 0x00000003, .expected_output = 30 }, + + { .value = 0x01000000, .expected_output = 7 }, + { .value = 0x00010000, .expected_output = 15 }, + { .value = 0x00000100, .expected_output = 23 }, + { .value = 0x00000001, .expected_output = 31 }, +}; + +void test_clzsi2_with_data(void **state) +{ + for (int i = 0; i < ARRAY_SIZE(test_data); ++i) + assert_int_equal(test_data[i].expected_output, __clzsi2(test_data[i].value)); +} + +int main(void) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_clzsi2_with_data), + }; + + return cmocka_run_group_tests(tests, NULL, NULL); +} |