diff options
Diffstat (limited to 'tests/tcg/multiarch/test-plugin-mem-access.c')
| -rw-r--r-- | tests/tcg/multiarch/test-plugin-mem-access.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/tests/tcg/multiarch/test-plugin-mem-access.c b/tests/tcg/multiarch/test-plugin-mem-access.c new file mode 100644 index 0000000..057b9aa --- /dev/null +++ b/tests/tcg/multiarch/test-plugin-mem-access.c @@ -0,0 +1,177 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * + * Check if we detect all memory accesses expected using plugin API. + * Used in conjunction with ./check-plugin-mem-access.sh check script. + * Output of this program is the list of patterns expected in plugin output. + * + * 8,16,32 load/store are tested for all arch. + * 64,128 load/store are tested for aarch64/x64. + * atomic operations (8,16,32,64) are tested for x64 only. + */ + +#include <pthread.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +#if defined(__x86_64__) +#include <emmintrin.h> +#elif defined(__aarch64__) +#include <arm_neon.h> +#endif /* __x86_64__ */ + +static void *data; + +/* ,store_u8,.*,8,store,0xf1 */ +#define PRINT_EXPECTED(function, type, value, action) \ +do { \ + printf(",%s,.*,%d,%s,%s\n", \ + #function, (int) sizeof(type) * 8, action, value); \ +} \ +while (0) + +#define DEFINE_STORE(name, type, value) \ + \ +static void print_expected_store_##name(void) \ +{ \ + PRINT_EXPECTED(store_##name, type, #value, "store"); \ +} \ + \ +static void store_##name(void) \ +{ \ + *((type *)data) = value; \ + print_expected_store_##name(); \ +} + +#define DEFINE_ATOMIC_OP(name, type, value) \ + \ +static void print_expected_atomic_op_##name(void) \ +{ \ + PRINT_EXPECTED(atomic_op_##name, type, "0x0*42", "load"); \ + PRINT_EXPECTED(atomic_op_##name, type, #value, "store"); \ +} \ + \ +static void atomic_op_##name(void) \ +{ \ + *((type *)data) = 0x42; \ + __sync_val_compare_and_swap((type *)data, 0x42, value); \ + print_expected_atomic_op_##name(); \ +} + +#define DEFINE_LOAD(name, type, value) \ + \ +static void print_expected_load_##name(void) \ +{ \ + PRINT_EXPECTED(load_##name, type, #value, "load"); \ +} \ + \ +static void load_##name(void) \ +{ \ + \ + /* volatile forces load to be generated. */ \ + volatile type src = *((type *) data); \ + volatile type dest = src; \ + (void)src, (void)dest; \ + print_expected_load_##name(); \ +} + +DEFINE_STORE(u8, uint8_t, 0xf1) +DEFINE_LOAD(u8, uint8_t, 0xf1) +DEFINE_STORE(u16, uint16_t, 0xf123) +DEFINE_LOAD(u16, uint16_t, 0xf123) +DEFINE_STORE(u32, uint32_t, 0xff112233) +DEFINE_LOAD(u32, uint32_t, 0xff112233) + +#if defined(__x86_64__) || defined(__aarch64__) +DEFINE_STORE(u64, uint64_t, 0xf123456789abcdef) +DEFINE_LOAD(u64, uint64_t, 0xf123456789abcdef) + +static void print_expected_store_u128(void) +{ + PRINT_EXPECTED(store_u128, __int128, + "0xf122334455667788f123456789abcdef", "store"); +} + +static void store_u128(void) +{ +#ifdef __x86_64__ + _mm_store_si128(data, _mm_set_epi32(0xf1223344, 0x55667788, + 0xf1234567, 0x89abcdef)); +#else + const uint32_t init[4] = {0x89abcdef, 0xf1234567, 0x55667788, 0xf1223344}; + uint32x4_t vec = vld1q_u32(init); + vst1q_u32(data, vec); +#endif /* __x86_64__ */ + print_expected_store_u128(); +} + +static void print_expected_load_u128(void) +{ + PRINT_EXPECTED(load_u128, __int128, + "0xf122334455667788f123456789abcdef", "load"); +} + +static void load_u128(void) +{ +#ifdef __x86_64__ + __m128i var = _mm_load_si128(data); +#else + uint32x4_t var = vld1q_u32(data); +#endif + (void) var; + print_expected_load_u128(); +} +#endif /* __x86_64__ || __aarch64__ */ + +#if defined(__x86_64__) +DEFINE_ATOMIC_OP(u8, uint8_t, 0xf1) +DEFINE_ATOMIC_OP(u16, uint16_t, 0xf123) +DEFINE_ATOMIC_OP(u32, uint32_t, 0xff112233) +DEFINE_ATOMIC_OP(u64, uint64_t, 0xf123456789abcdef) +#endif /* __x86_64__ */ + +static void *f(void *p) +{ + return NULL; +} + +int main(void) +{ + /* + * We force creation of a second thread to enable cpu flag CF_PARALLEL. + * This will generate atomic operations when needed. + */ + pthread_t thread; + pthread_create(&thread, NULL, &f, NULL); + pthread_join(thread, NULL); + + /* allocate storage up to 128 bits */ + data = malloc(16); + + store_u8(); + load_u8(); + + store_u16(); + load_u16(); + + store_u32(); + load_u32(); + +#if defined(__x86_64__) || defined(__aarch64__) + store_u64(); + load_u64(); + + store_u128(); + load_u128(); +#endif /* __x86_64__ || __aarch64__ */ + +#if defined(__x86_64__) + atomic_op_u8(); + atomic_op_u16(); + atomic_op_u32(); + atomic_op_u64(); +#endif /* __x86_64__ */ + + free(data); +} |