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-rw-r--r--tools/testing/selftests/rseq/rseq-s390.h470
1 files changed, 26 insertions, 444 deletions
diff --git a/tools/testing/selftests/rseq/rseq-s390.h b/tools/testing/selftests/rseq/rseq-s390.h
index 8ef94ad1cbb4..33baaa9f9997 100644
--- a/tools/testing/selftests/rseq/rseq-s390.h
+++ b/tools/testing/selftests/rseq/rseq-s390.h
@@ -15,7 +15,7 @@
#define rseq_smp_load_acquire(p) \
__extension__ ({ \
- __typeof(*p) ____p1 = RSEQ_READ_ONCE(*p); \
+ rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p)); \
rseq_barrier(); \
____p1; \
})
@@ -25,13 +25,9 @@ __extension__ ({ \
#define rseq_smp_store_release(p, v) \
do { \
rseq_barrier(); \
- RSEQ_WRITE_ONCE(*p, v); \
+ RSEQ_WRITE_ONCE(*(p), v); \
} while (0)
-#ifdef RSEQ_SKIP_FASTPATH
-#include "rseq-skip.h"
-#else /* !RSEQ_SKIP_FASTPATH */
-
#ifdef __s390x__
#define LONG_L "lg"
@@ -134,448 +130,34 @@ do { \
"jg %l[" __rseq_str(cmpfail_label) "]\n\t" \
".popsection\n\t"
-static inline __attribute__((always_inline))
-int rseq_cmpeqv_storev(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
-{
- RSEQ_INJECT_C(9)
+/* Per-cpu-id indexing. */
- __asm__ __volatile__ goto (
- RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
-#endif
- /* Start rseq by storing table entry pointer into rseq_cs. */
- RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
- RSEQ_INJECT_ASM(3)
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz %l[cmpfail]\n\t"
- RSEQ_INJECT_ASM(4)
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz %l[error2]\n\t"
-#endif
- /* final store */
- LONG_S " %[newv], %[v]\n\t"
- "2:\n\t"
- RSEQ_INJECT_ASM(5)
- RSEQ_ASM_DEFINE_ABORT(4, "", abort)
- : /* gcc asm goto does not allow outputs */
- : [cpu_id] "r" (cpu),
- [current_cpu_id] "m" (__rseq_abi.cpu_id),
- [rseq_cs] "m" (__rseq_abi.rseq_cs),
- [v] "m" (*v),
- [expect] "r" (expect),
- [newv] "r" (newv)
- RSEQ_INJECT_INPUT
- : "memory", "cc", "r0"
- RSEQ_INJECT_CLOBBER
- : abort, cmpfail
-#ifdef RSEQ_COMPARE_TWICE
- , error1, error2
-#endif
- );
- return 0;
-abort:
- RSEQ_INJECT_FAILED
- return -1;
-cmpfail:
- return 1;
-#ifdef RSEQ_COMPARE_TWICE
-error1:
- rseq_bug("cpu_id comparison failed");
-error2:
- rseq_bug("expected value comparison failed");
-#endif
-}
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
-/*
- * Compare @v against @expectnot. When it does _not_ match, load @v
- * into @load, and store the content of *@v + voffp into @v.
- */
-static inline __attribute__((always_inline))
-int rseq_cmpnev_storeoffp_load(intptr_t *v, intptr_t expectnot,
- off_t voffp, intptr_t *load, int cpu)
-{
- RSEQ_INJECT_C(9)
-
- __asm__ __volatile__ goto (
- RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
-#endif
- /* Start rseq by storing table entry pointer into rseq_cs. */
- RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
- RSEQ_INJECT_ASM(3)
- LONG_L " %%r1, %[v]\n\t"
- LONG_CMP_R " %%r1, %[expectnot]\n\t"
- "je %l[cmpfail]\n\t"
- RSEQ_INJECT_ASM(4)
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
- LONG_L " %%r1, %[v]\n\t"
- LONG_CMP_R " %%r1, %[expectnot]\n\t"
- "je %l[error2]\n\t"
-#endif
- LONG_S " %%r1, %[load]\n\t"
- LONG_ADD_R " %%r1, %[voffp]\n\t"
- LONG_L " %%r1, 0(%%r1)\n\t"
- /* final store */
- LONG_S " %%r1, %[v]\n\t"
- "2:\n\t"
- RSEQ_INJECT_ASM(5)
- RSEQ_ASM_DEFINE_ABORT(4, "", abort)
- : /* gcc asm goto does not allow outputs */
- : [cpu_id] "r" (cpu),
- [current_cpu_id] "m" (__rseq_abi.cpu_id),
- [rseq_cs] "m" (__rseq_abi.rseq_cs),
- /* final store input */
- [v] "m" (*v),
- [expectnot] "r" (expectnot),
- [voffp] "r" (voffp),
- [load] "m" (*load)
- RSEQ_INJECT_INPUT
- : "memory", "cc", "r0", "r1"
- RSEQ_INJECT_CLOBBER
- : abort, cmpfail
-#ifdef RSEQ_COMPARE_TWICE
- , error1, error2
-#endif
- );
- return 0;
-abort:
- RSEQ_INJECT_FAILED
- return -1;
-cmpfail:
- return 1;
-#ifdef RSEQ_COMPARE_TWICE
-error1:
- rseq_bug("cpu_id comparison failed");
-error2:
- rseq_bug("expected value comparison failed");
-#endif
-}
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
-static inline __attribute__((always_inline))
-int rseq_addv(intptr_t *v, intptr_t count, int cpu)
-{
- RSEQ_INJECT_C(9)
+/* Per-mm-cid indexing. */
- __asm__ __volatile__ goto (
- RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
-#endif
- /* Start rseq by storing table entry pointer into rseq_cs. */
- RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
- RSEQ_INJECT_ASM(3)
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
-#endif
- LONG_L " %%r0, %[v]\n\t"
- LONG_ADD_R " %%r0, %[count]\n\t"
- /* final store */
- LONG_S " %%r0, %[v]\n\t"
- "2:\n\t"
- RSEQ_INJECT_ASM(4)
- RSEQ_ASM_DEFINE_ABORT(4, "", abort)
- : /* gcc asm goto does not allow outputs */
- : [cpu_id] "r" (cpu),
- [current_cpu_id] "m" (__rseq_abi.cpu_id),
- [rseq_cs] "m" (__rseq_abi.rseq_cs),
- /* final store input */
- [v] "m" (*v),
- [count] "r" (count)
- RSEQ_INJECT_INPUT
- : "memory", "cc", "r0"
- RSEQ_INJECT_CLOBBER
- : abort
-#ifdef RSEQ_COMPARE_TWICE
- , error1
-#endif
- );
- return 0;
-abort:
- RSEQ_INJECT_FAILED
- return -1;
-#ifdef RSEQ_COMPARE_TWICE
-error1:
- rseq_bug("cpu_id comparison failed");
-#endif
-}
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
-static inline __attribute__((always_inline))
-int rseq_cmpeqv_trystorev_storev(intptr_t *v, intptr_t expect,
- intptr_t *v2, intptr_t newv2,
- intptr_t newv, int cpu)
-{
- RSEQ_INJECT_C(9)
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
- __asm__ __volatile__ goto (
- RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
-#endif
- /* Start rseq by storing table entry pointer into rseq_cs. */
- RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
- RSEQ_INJECT_ASM(3)
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz %l[cmpfail]\n\t"
- RSEQ_INJECT_ASM(4)
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz %l[error2]\n\t"
-#endif
- /* try store */
- LONG_S " %[newv2], %[v2]\n\t"
- RSEQ_INJECT_ASM(5)
- /* final store */
- LONG_S " %[newv], %[v]\n\t"
- "2:\n\t"
- RSEQ_INJECT_ASM(6)
- RSEQ_ASM_DEFINE_ABORT(4, "", abort)
- : /* gcc asm goto does not allow outputs */
- : [cpu_id] "r" (cpu),
- [current_cpu_id] "m" (__rseq_abi.cpu_id),
- [rseq_cs] "m" (__rseq_abi.rseq_cs),
- /* try store input */
- [v2] "m" (*v2),
- [newv2] "r" (newv2),
- /* final store input */
- [v] "m" (*v),
- [expect] "r" (expect),
- [newv] "r" (newv)
- RSEQ_INJECT_INPUT
- : "memory", "cc", "r0"
- RSEQ_INJECT_CLOBBER
- : abort, cmpfail
-#ifdef RSEQ_COMPARE_TWICE
- , error1, error2
-#endif
- );
- return 0;
-abort:
- RSEQ_INJECT_FAILED
- return -1;
-cmpfail:
- return 1;
-#ifdef RSEQ_COMPARE_TWICE
-error1:
- rseq_bug("cpu_id comparison failed");
-error2:
- rseq_bug("expected value comparison failed");
-#endif
-}
-
-/* s390 is TSO. */
-static inline __attribute__((always_inline))
-int rseq_cmpeqv_trystorev_storev_release(intptr_t *v, intptr_t expect,
- intptr_t *v2, intptr_t newv2,
- intptr_t newv, int cpu)
-{
- return rseq_cmpeqv_trystorev_storev(v, expect, v2, newv2, newv, cpu);
-}
-
-static inline __attribute__((always_inline))
-int rseq_cmpeqv_cmpeqv_storev(intptr_t *v, intptr_t expect,
- intptr_t *v2, intptr_t expect2,
- intptr_t newv, int cpu)
-{
- RSEQ_INJECT_C(9)
-
- __asm__ __volatile__ goto (
- RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error3])
-#endif
- /* Start rseq by storing table entry pointer into rseq_cs. */
- RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
- RSEQ_INJECT_ASM(3)
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz %l[cmpfail]\n\t"
- RSEQ_INJECT_ASM(4)
- LONG_CMP " %[expect2], %[v2]\n\t"
- "jnz %l[cmpfail]\n\t"
- RSEQ_INJECT_ASM(5)
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz %l[error2]\n\t"
- LONG_CMP " %[expect2], %[v2]\n\t"
- "jnz %l[error3]\n\t"
-#endif
- /* final store */
- LONG_S " %[newv], %[v]\n\t"
- "2:\n\t"
- RSEQ_INJECT_ASM(6)
- RSEQ_ASM_DEFINE_ABORT(4, "", abort)
- : /* gcc asm goto does not allow outputs */
- : [cpu_id] "r" (cpu),
- [current_cpu_id] "m" (__rseq_abi.cpu_id),
- [rseq_cs] "m" (__rseq_abi.rseq_cs),
- /* cmp2 input */
- [v2] "m" (*v2),
- [expect2] "r" (expect2),
- /* final store input */
- [v] "m" (*v),
- [expect] "r" (expect),
- [newv] "r" (newv)
- RSEQ_INJECT_INPUT
- : "memory", "cc", "r0"
- RSEQ_INJECT_CLOBBER
- : abort, cmpfail
-#ifdef RSEQ_COMPARE_TWICE
- , error1, error2, error3
-#endif
- );
- return 0;
-abort:
- RSEQ_INJECT_FAILED
- return -1;
-cmpfail:
- return 1;
-#ifdef RSEQ_COMPARE_TWICE
-error1:
- rseq_bug("cpu_id comparison failed");
-error2:
- rseq_bug("1st expected value comparison failed");
-error3:
- rseq_bug("2nd expected value comparison failed");
-#endif
-}
-
-static inline __attribute__((always_inline))
-int rseq_cmpeqv_trymemcpy_storev(intptr_t *v, intptr_t expect,
- void *dst, void *src, size_t len,
- intptr_t newv, int cpu)
-{
- uint64_t rseq_scratch[3];
-
- RSEQ_INJECT_C(9)
-
- __asm__ __volatile__ goto (
- RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
- RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
-#endif
- LONG_S " %[src], %[rseq_scratch0]\n\t"
- LONG_S " %[dst], %[rseq_scratch1]\n\t"
- LONG_S " %[len], %[rseq_scratch2]\n\t"
- /* Start rseq by storing table entry pointer into rseq_cs. */
- RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
- RSEQ_INJECT_ASM(3)
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz 5f\n\t"
- RSEQ_INJECT_ASM(4)
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 6f)
- LONG_CMP " %[expect], %[v]\n\t"
- "jnz 7f\n\t"
-#endif
- /* try memcpy */
- LONG_LT_R " %[len], %[len]\n\t"
- "jz 333f\n\t"
- "222:\n\t"
- "ic %%r0,0(%[src])\n\t"
- "stc %%r0,0(%[dst])\n\t"
- LONG_ADDI " %[src], 1\n\t"
- LONG_ADDI " %[dst], 1\n\t"
- LONG_ADDI " %[len], -1\n\t"
- "jnz 222b\n\t"
- "333:\n\t"
- RSEQ_INJECT_ASM(5)
- /* final store */
- LONG_S " %[newv], %[v]\n\t"
- "2:\n\t"
- RSEQ_INJECT_ASM(6)
- /* teardown */
- LONG_L " %[len], %[rseq_scratch2]\n\t"
- LONG_L " %[dst], %[rseq_scratch1]\n\t"
- LONG_L " %[src], %[rseq_scratch0]\n\t"
- RSEQ_ASM_DEFINE_ABORT(4,
- LONG_L " %[len], %[rseq_scratch2]\n\t"
- LONG_L " %[dst], %[rseq_scratch1]\n\t"
- LONG_L " %[src], %[rseq_scratch0]\n\t",
- abort)
- RSEQ_ASM_DEFINE_CMPFAIL(5,
- LONG_L " %[len], %[rseq_scratch2]\n\t"
- LONG_L " %[dst], %[rseq_scratch1]\n\t"
- LONG_L " %[src], %[rseq_scratch0]\n\t",
- cmpfail)
-#ifdef RSEQ_COMPARE_TWICE
- RSEQ_ASM_DEFINE_CMPFAIL(6,
- LONG_L " %[len], %[rseq_scratch2]\n\t"
- LONG_L " %[dst], %[rseq_scratch1]\n\t"
- LONG_L " %[src], %[rseq_scratch0]\n\t",
- error1)
- RSEQ_ASM_DEFINE_CMPFAIL(7,
- LONG_L " %[len], %[rseq_scratch2]\n\t"
- LONG_L " %[dst], %[rseq_scratch1]\n\t"
- LONG_L " %[src], %[rseq_scratch0]\n\t",
- error2)
-#endif
- : /* gcc asm goto does not allow outputs */
- : [cpu_id] "r" (cpu),
- [current_cpu_id] "m" (__rseq_abi.cpu_id),
- [rseq_cs] "m" (__rseq_abi.rseq_cs),
- /* final store input */
- [v] "m" (*v),
- [expect] "r" (expect),
- [newv] "r" (newv),
- /* try memcpy input */
- [dst] "r" (dst),
- [src] "r" (src),
- [len] "r" (len),
- [rseq_scratch0] "m" (rseq_scratch[0]),
- [rseq_scratch1] "m" (rseq_scratch[1]),
- [rseq_scratch2] "m" (rseq_scratch[2])
- RSEQ_INJECT_INPUT
- : "memory", "cc", "r0"
- RSEQ_INJECT_CLOBBER
- : abort, cmpfail
-#ifdef RSEQ_COMPARE_TWICE
- , error1, error2
-#endif
- );
- return 0;
-abort:
- RSEQ_INJECT_FAILED
- return -1;
-cmpfail:
- return 1;
-#ifdef RSEQ_COMPARE_TWICE
-error1:
- rseq_bug("cpu_id comparison failed");
-error2:
- rseq_bug("expected value comparison failed");
-#endif
-}
+/* APIs which are not based on cpu ids. */
-/* s390 is TSO. */
-static inline __attribute__((always_inline))
-int rseq_cmpeqv_trymemcpy_storev_release(intptr_t *v, intptr_t expect,
- void *dst, void *src, size_t len,
- intptr_t newv, int cpu)
-{
- return rseq_cmpeqv_trymemcpy_storev(v, expect, dst, src, len,
- newv, cpu);
-}
-#endif /* !RSEQ_SKIP_FASTPATH */
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
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