From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- tools/testing/selftests/rseq/rseq-s390-bits.h | 474 ++++++++++++++++++++++++++ 1 file changed, 474 insertions(+) create mode 100644 tools/testing/selftests/rseq/rseq-s390-bits.h (limited to 'tools/testing/selftests/rseq/rseq-s390-bits.h') diff --git a/tools/testing/selftests/rseq/rseq-s390-bits.h b/tools/testing/selftests/rseq/rseq-s390-bits.h new file mode 100644 index 0000000000..0cf17d9f17 --- /dev/null +++ b/tools/testing/selftests/rseq/rseq-s390-bits.h @@ -0,0 +1,474 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ + +#include "rseq-bits-template.h" + +#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \ + (defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) + +static inline __attribute__((always_inline)) +int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, 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]) +#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_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + [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 + ); + rseq_after_asm_goto(); + return 0; +abort: + rseq_after_asm_goto(); + RSEQ_INJECT_FAILED + return -1; +cmpfail: + rseq_after_asm_goto(); + return 1; +#ifdef RSEQ_COMPARE_TWICE +error1: + rseq_after_asm_goto(); + rseq_bug("cpu_id comparison failed"); +error2: + rseq_after_asm_goto(); + rseq_bug("expected value comparison failed"); +#endif +} + +/* + * 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_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot, + long 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_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + /* 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 + ); + rseq_after_asm_goto(); + return 0; +abort: + rseq_after_asm_goto(); + RSEQ_INJECT_FAILED + return -1; +cmpfail: + rseq_after_asm_goto(); + return 1; +#ifdef RSEQ_COMPARE_TWICE +error1: + rseq_after_asm_goto(); + rseq_bug("cpu_id comparison failed"); +error2: + rseq_after_asm_goto(); + rseq_bug("expected value comparison failed"); +#endif +} + +static inline __attribute__((always_inline)) +int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu) +{ + RSEQ_INJECT_C(9) + + __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_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + /* 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 + ); + rseq_after_asm_goto(); + return 0; +abort: + rseq_after_asm_goto(); + RSEQ_INJECT_FAILED + return -1; +#ifdef RSEQ_COMPARE_TWICE +error1: + rseq_after_asm_goto(); + rseq_bug("cpu_id comparison failed"); +#endif +} + +static inline __attribute__((always_inline)) +int RSEQ_TEMPLATE_IDENTIFIER(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_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + /* 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 + ); + rseq_after_asm_goto(); + return 0; +abort: + rseq_after_asm_goto(); + RSEQ_INJECT_FAILED + return -1; +cmpfail: + rseq_after_asm_goto(); + return 1; +#ifdef RSEQ_COMPARE_TWICE +error1: + rseq_after_asm_goto(); + rseq_bug("cpu_id comparison failed"); +error2: + rseq_after_asm_goto(); + rseq_bug("1st expected value comparison failed"); +error3: + rseq_after_asm_goto(); + rseq_bug("2nd expected value comparison failed"); +#endif +} + +#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) && + (defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */ + +#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \ + (defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) + +/* s390 is TSO. */ +static inline __attribute__((always_inline)) +int RSEQ_TEMPLATE_IDENTIFIER(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) + + __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_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + /* 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 + ); + rseq_after_asm_goto(); + return 0; +abort: + rseq_after_asm_goto(); + RSEQ_INJECT_FAILED + return -1; +cmpfail: + rseq_after_asm_goto(); + return 1; +#ifdef RSEQ_COMPARE_TWICE +error1: + rseq_after_asm_goto(); + rseq_bug("cpu_id comparison failed"); +error2: + rseq_after_asm_goto(); + rseq_bug("expected value comparison failed"); +#endif +} + +/* s390 is TSO. */ +static inline __attribute__((always_inline)) +int RSEQ_TEMPLATE_IDENTIFIER(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_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + /* 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 + ); + rseq_after_asm_goto(); + return 0; +abort: + rseq_after_asm_goto(); + RSEQ_INJECT_FAILED + return -1; +cmpfail: + rseq_after_asm_goto(); + return 1; +#ifdef RSEQ_COMPARE_TWICE +error1: + rseq_after_asm_goto(); + rseq_bug("cpu_id comparison failed"); +error2: + rseq_after_asm_goto(); + rseq_bug("expected value comparison failed"); +#endif +} + +#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && + (defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */ + +#include "rseq-bits-reset.h" -- cgit v1.2.3