| Message ID | 20250110102248.3295944-4-shorne@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On 2025-01-10 05:22, Stafford Horne wrote: > Add support for OpenRISC in the rseq selftests. OpenRISC is 32-bit > only. > > Tested this with: > > Compiler: gcc version 14.2.0 (GCC) > Binutils: GNU assembler version 2.43.1 (or1k-smh-linux-gnu) using BFD version (GNU Binutils) 2.43.1.20241207 > Linux: Linux buildroot 6.13.0-rc2-00005-g1fa73dd6c2d3-dirty #213 SMP Sat Dec 28 22:18:39 GMT 2024 openrisc GNU/Linux > Glibc: 2024-12-13 e4e49583d9 Stafford Horne or1k: Update libm-test-ulps > > Signed-off-by: Stafford Horne <shorne@gmail.com> Thanks! Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> > --- > tools/testing/selftests/rseq/param_test.c | 24 + > tools/testing/selftests/rseq/rseq-or1k-bits.h | 412 ++++++++++++++++++ > .../selftests/rseq/rseq-or1k-thread-pointer.h | 13 + > tools/testing/selftests/rseq/rseq-or1k.h | 181 ++++++++ > .../selftests/rseq/rseq-thread-pointer.h | 2 + > tools/testing/selftests/rseq/rseq.h | 2 + > 6 files changed, 634 insertions(+) > create mode 100644 tools/testing/selftests/rseq/rseq-or1k-bits.h > create mode 100644 tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h > create mode 100644 tools/testing/selftests/rseq/rseq-or1k.h > > diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c > index 2f37961240ca..05d03e679e06 100644 > --- a/tools/testing/selftests/rseq/param_test.c > +++ b/tools/testing/selftests/rseq/param_test.c > @@ -226,8 +226,32 @@ unsigned int yield_mod_cnt, nr_abort; > "addi " INJECT_ASM_REG "," INJECT_ASM_REG ", -1\n\t" \ > "bnez " INJECT_ASM_REG ", 222b\n\t" \ > "333:\n\t" > +#elif defined(__or1k__) > > +#define RSEQ_INJECT_INPUT \ > + , [loop_cnt_1]"m"(loop_cnt[1]) \ > + , [loop_cnt_2]"m"(loop_cnt[2]) \ > + , [loop_cnt_3]"m"(loop_cnt[3]) \ > + , [loop_cnt_4]"m"(loop_cnt[4]) \ > + , [loop_cnt_5]"m"(loop_cnt[5]) \ > + , [loop_cnt_6]"m"(loop_cnt[6]) > > +#define INJECT_ASM_REG "r31" > + > +#define RSEQ_INJECT_CLOBBER \ > + , INJECT_ASM_REG > + > +#define RSEQ_INJECT_ASM(n) \ > + "l.lwz " INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \ > + "l.sfeqi " INJECT_ASM_REG ", 0\n\t" \ > + "l.bf 333f\n\t" \ > + " l.nop\n\t" \ > + "222:\n\t" \ > + "l.addi " INJECT_ASM_REG "," INJECT_ASM_REG ", -1\n\t" \ > + "l.sfeqi " INJECT_ASM_REG ", 0\n\t" \ > + "l.bf 222f\n\t" \ > + " l.nop\n\t" \ > + "333:\n\t" > #else > #error unsupported target > #endif > diff --git a/tools/testing/selftests/rseq/rseq-or1k-bits.h b/tools/testing/selftests/rseq/rseq-or1k-bits.h > new file mode 100644 > index 000000000000..15d0e8200cd1 > --- /dev/null > +++ b/tools/testing/selftests/rseq/rseq-or1k-bits.h > @@ -0,0 +1,412 @@ > +/* 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 __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(1, 2f, 3f, 4f) > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") > +#endif > + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) > + RSEQ_INJECT_ASM(3) > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") > + RSEQ_INJECT_ASM(4) > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") > +#endif > + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) > + 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", RSEQ_ASM_TMP_REG_1 > + 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 > +} > + > +static inline __always_inline > +int RSEQ_TEMPLATE_IDENTIFIER(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(1, 2f, 3f, 4f) > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") > +#endif > + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) > + RSEQ_INJECT_ASM(3) > + RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[cmpfail]") > + RSEQ_INJECT_ASM(4) > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") > + RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[error2]") > +#endif > + RSEQ_ASM_OP_R_LOAD(v) > + RSEQ_ASM_OP_R_STORE(load) > + RSEQ_ASM_OP_R_LOAD_OFF(voffp) > + RSEQ_ASM_OP_R_FINAL_STORE(v, 3) > + 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), > + [expectnot] "r" (expectnot), > + [load] "m" (*load), > + [voffp] "Ir" (voffp) > + RSEQ_INJECT_INPUT > + : "memory", RSEQ_ASM_TMP_REG_1 > + 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 > +} > + > +static inline __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(1, 2f, 3f, 4f) > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") > +#endif > + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, 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 > + RSEQ_ASM_OP_R_LOAD(v) > + RSEQ_ASM_OP_R_ADD(count) > + RSEQ_ASM_OP_R_FINAL_STORE(v, 3) > + 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), > + [v] "m" (*v), > + [count] "r" (count) > + RSEQ_INJECT_INPUT > + : "memory", RSEQ_ASM_TMP_REG_1 > + 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 > +} > + > +static inline __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(1, 2f, 3f, 4f) > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error3]") > +#endif > + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) > + RSEQ_INJECT_ASM(3) > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") > + RSEQ_INJECT_ASM(4) > + RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[cmpfail]") > + RSEQ_INJECT_ASM(5) > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") > + RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[error3]") > +#endif > + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) > + 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), > + [v] "m" (*v), > + [expect] "r" (expect), > + [v2] "m" (*v2), > + [expect2] "r" (expect2), > + [newv] "r" (newv) > + RSEQ_INJECT_INPUT > + : "memory", RSEQ_ASM_TMP_REG_1 > + 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("expected value comparison failed"); > +error3: > + rseq_bug("2nd expected value comparison failed"); > +#endif > +} > + > +#define RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV > + > +/* > + * pval = *(ptr+off) > + * *pval += inc; > + */ > +static inline __always_inline > +int RSEQ_TEMPLATE_IDENTIFIER(rseq_offset_deref_addv)(intptr_t *ptr, off_t off, intptr_t inc, > + int cpu) > +{ > + RSEQ_INJECT_C(9) > + > + __asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f) > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") > +#endif > + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, 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 > + RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, 3) > + 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), > + [ptr] "r" (ptr), > + [off] "r" (off), > + [inc] "r" (inc) > + RSEQ_INJECT_INPUT > + : "memory", RSEQ_ASM_TMP_REG_1 > + 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 > +} > + > +#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)) > + > +static inline __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(1, 2f, 3f, 4f) > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") > +#endif > + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) > + RSEQ_INJECT_ASM(3) > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") > + RSEQ_INJECT_ASM(4) > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") > +#endif > + RSEQ_ASM_OP_STORE(v2, newv2) > + RSEQ_INJECT_ASM(5) > +#ifdef RSEQ_TEMPLATE_MO_RELEASE > + RSEQ_ASM_OP_FINAL_STORE_RELEASE(v, newv, 3) > +#else > + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) > +#endif > + 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), > + [expect] "r" (expect), > + [v] "m" (*v), > + [newv] "r" (newv), > + [v2] "m" (*v2), > + [newv2] "r" (newv2) > + RSEQ_INJECT_INPUT > + : "memory", RSEQ_ASM_TMP_REG_1 > + 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 > +} > + > +static inline __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) > +{ > + RSEQ_INJECT_C(9) > + __asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f) > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") > + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") > +#endif > + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) > + RSEQ_INJECT_ASM(3) > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") > + RSEQ_INJECT_ASM(4) > +#ifdef RSEQ_COMPARE_TWICE > + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") > + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") > +#endif > + RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len) > + RSEQ_INJECT_ASM(5) > +#ifdef RSEQ_TEMPLATE_MO_RELEASE > + RSEQ_ASM_OP_FINAL_STORE_RELEASE(v, newv, 3) > +#else > + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) > +#endif > + 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), > + [expect] "r" (expect), > + [v] "m" (*v), > + [newv] "r" (newv), > + [dst] "r" (dst), > + [src] "r" (src), > + [len] "r" (len) > + RSEQ_INJECT_INPUT > + : "memory", RSEQ_ASM_TMP_REG_1, RSEQ_ASM_TMP_REG_2, > + RSEQ_ASM_TMP_REG_3, RSEQ_ASM_TMP_REG_4 > + 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 > +} > + > +#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" > diff --git a/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h b/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h > new file mode 100644 > index 000000000000..cda740f7aff3 > --- /dev/null > +++ b/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h > @@ -0,0 +1,13 @@ > +/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */ > +#ifndef _RSEQ_OR1K_THREAD_POINTER > +#define _RSEQ_OR1K_THREAD_POINTER > + > +static inline void *rseq_thread_pointer(void) > +{ > + void *__thread_register; > + > + __asm__ ("l.or %0, r10, r0" : "=r" (__thread_register)); > + return __thread_register; > +} > + > +#endif > diff --git a/tools/testing/selftests/rseq/rseq-or1k.h b/tools/testing/selftests/rseq/rseq-or1k.h > new file mode 100644 > index 000000000000..9e78eebdf79a > --- /dev/null > +++ b/tools/testing/selftests/rseq/rseq-or1k.h > @@ -0,0 +1,181 @@ > +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ > + > +/* > + * Select the instruction "l.nop 0x35" as the RSEQ_SIG. > + */ > +#define RSEQ_SIG 0x15000035 > + > +#define rseq_smp_mb() __asm__ __volatile__ ("l.msync" ::: "memory") > +#define rseq_smp_rmb() rseq_smp_mb() > +#define rseq_smp_wmb() rseq_smp_mb() > +#define RSEQ_ASM_TMP_REG_1 "r31" > +#define RSEQ_ASM_TMP_REG_2 "r29" > +#define RSEQ_ASM_TMP_REG_3 "r27" > +#define RSEQ_ASM_TMP_REG_4 "r25" > + > +#define rseq_smp_load_acquire(p) \ > +__extension__ ({ \ > + rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p)); \ > + rseq_smp_mb(); \ > + ____p1; \ > +}) > + > +#define rseq_smp_acquire__after_ctrl_dep() rseq_smp_rmb() > + > +#define rseq_smp_store_release(p, v) \ > +do { \ > + rseq_smp_mb(); \ > + RSEQ_WRITE_ONCE(*(p), v); \ > +} while (0) > + > +#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags, start_ip, \ > + post_commit_offset, abort_ip) \ > + ".pushsection __rseq_cs, \"aw\"\n" \ > + ".balign 32\n" \ > + __rseq_str(label) ":\n" \ > + ".long " __rseq_str(version) ", " __rseq_str(flags) "\n" \ > + ".long 0x0, " __rseq_str(start_ip) ", " \ > + "0x0, " __rseq_str(post_commit_offset) ", " \ > + "0x0, " __rseq_str(abort_ip) "\n" \ > + ".popsection\n\t" \ > + ".pushsection __rseq_cs_ptr_array, \"aw\"\n" \ > + ".long 0x0, " __rseq_str(label) "b\n" \ > + ".popsection\n" > + > +#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \ > + __RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip, \ > + ((post_commit_ip) - (start_ip)), abort_ip) > + > +/* > + * Exit points of a rseq critical section consist of all instructions outside > + * of the critical section where a critical section can either branch to or > + * reach through the normal course of its execution. The abort IP and the > + * post-commit IP are already part of the __rseq_cs section and should not be > + * explicitly defined as additional exit points. Knowing all exit points is > + * useful to assist debuggers stepping over the critical section. > + */ > +#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip) \ > + ".pushsection __rseq_exit_point_array, \"aw\"\n" \ > + ".long 0x0, " __rseq_str(start_ip) ", 0x0, " __rseq_str(exit_ip) "\n" \ > + ".popsection\n" > + > +#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs) \ > + RSEQ_INJECT_ASM(1) \ > + "l.movhi " RSEQ_ASM_TMP_REG_1 ", hi(" __rseq_str(cs_label) ")\n"\ > + "l.ori " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 \ > + ", lo(" __rseq_str(cs_label) ")\n"\ > + "l.sw %[" __rseq_str(rseq_cs) "], " RSEQ_ASM_TMP_REG_1 "\n" \ > + __rseq_str(label) ":\n" > + > +#define RSEQ_ASM_DEFINE_ABORT(label, abort_label) \ > + "l.j 222f\n" \ > + " l.nop\n" \ > + ".balign 4\n" \ > + ".long " __rseq_str(RSEQ_SIG) "\n" \ > + __rseq_str(label) ":\n" \ > + "l.j %l[" __rseq_str(abort_label) "]\n" \ > + " l.nop\n" \ > + "222:\n" > + > +#define RSEQ_ASM_OP_STORE(var, value) \ > + "l.sw %[" __rseq_str(var) "], %[" __rseq_str(value) "]\n" > + > +#define RSEQ_ASM_OP_CMPEQ(var, expect, label) \ > + "l.lwz " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n" \ > + "l.sfne " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "]\n" \ > + "l.bf " __rseq_str(label) "\n" \ > + " l.nop\n" > + > +#define RSEQ_ASM_OP_CMPNE(var, expect, label) \ > + "l.lwz " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n" \ > + "l.sfeq " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "]\n" \ > + "l.bf " __rseq_str(label) "\n" \ > + " l.nop\n" > + > +#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label) \ > + RSEQ_INJECT_ASM(2) \ > + RSEQ_ASM_OP_CMPEQ(current_cpu_id, cpu_id, label) > + > +#define RSEQ_ASM_OP_R_LOAD(var) \ > + "l.lwz " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n" > + > +#define RSEQ_ASM_OP_R_STORE(var) \ > + "l.sw %[" __rseq_str(var) "], " RSEQ_ASM_TMP_REG_1 "\n" > + > +#define RSEQ_ASM_OP_R_LOAD_OFF(offset) \ > + "l.lwz " RSEQ_ASM_TMP_REG_1 ", " \ > + "%[" __rseq_str(offset) "](" RSEQ_ASM_TMP_REG_1 ")\n" > + > +#define RSEQ_ASM_OP_R_ADD(count) \ > + "l.add " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 \ > + ", %[" __rseq_str(count) "]\n" > + > +#define RSEQ_ASM_OP_FINAL_STORE(var, value, post_commit_label) \ > + RSEQ_ASM_OP_STORE(var, value) \ > + __rseq_str(post_commit_label) ":\n" > + > +#define RSEQ_ASM_OP_FINAL_STORE_RELEASE(var, value, post_commit_label) \ > + "l.msync\n" \ > + RSEQ_ASM_OP_STORE(var, value) \ > + __rseq_str(post_commit_label) ":\n" > + > +#define RSEQ_ASM_OP_R_FINAL_STORE(var, post_commit_label) \ > + "l.sw %[" __rseq_str(var) "], " RSEQ_ASM_TMP_REG_1 "\n" \ > + __rseq_str(post_commit_label) ":\n" > + > +#define RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len) \ > + "l.sfeq %[" __rseq_str(len) "], r0\n" \ > + "l.bf 333f\n" \ > + " l.nop\n" \ > + "l.ori " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(len) "], 0\n" \ > + "l.ori " RSEQ_ASM_TMP_REG_2 ", %[" __rseq_str(src) "], 0\n" \ > + "l.ori " RSEQ_ASM_TMP_REG_3 ", %[" __rseq_str(dst) "], 0\n" \ > + "222:\n" \ > + "l.lbz " RSEQ_ASM_TMP_REG_4 ", 0(" RSEQ_ASM_TMP_REG_2 ")\n" \ > + "l.sb 0(" RSEQ_ASM_TMP_REG_3 "), " RSEQ_ASM_TMP_REG_4 "\n" \ > + "l.addi " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 ", -1\n" \ > + "l.addi " RSEQ_ASM_TMP_REG_2 ", " RSEQ_ASM_TMP_REG_2 ", 1\n" \ > + "l.addi " RSEQ_ASM_TMP_REG_3 ", " RSEQ_ASM_TMP_REG_3 ", 1\n" \ > + "l.sfne " RSEQ_ASM_TMP_REG_1 ", r0\n" \ > + "l.bf 222b\n" \ > + " l.nop\n" \ > + "333:\n" > + > +#define RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, post_commit_label) \ > + "l.ori " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(ptr) "], 0\n" \ > + RSEQ_ASM_OP_R_ADD(off) \ > + "l.lwz " RSEQ_ASM_TMP_REG_1 ", 0(" RSEQ_ASM_TMP_REG_1 ")\n" \ > + RSEQ_ASM_OP_R_ADD(inc) \ > + __rseq_str(post_commit_label) ":\n" > + > +/* Per-cpu-id indexing. */ > + > +#define RSEQ_TEMPLATE_CPU_ID > +#define RSEQ_TEMPLATE_MO_RELAXED > +#include "rseq-or1k-bits.h" > +#undef RSEQ_TEMPLATE_MO_RELAXED > + > +#define RSEQ_TEMPLATE_MO_RELEASE > +#include "rseq-or1k-bits.h" > +#undef RSEQ_TEMPLATE_MO_RELEASE > +#undef RSEQ_TEMPLATE_CPU_ID > + > +/* Per-mm-cid indexing. */ > + > +#define RSEQ_TEMPLATE_MM_CID > +#define RSEQ_TEMPLATE_MO_RELAXED > +#include "rseq-or1k-bits.h" > +#undef RSEQ_TEMPLATE_MO_RELAXED > + > +#define RSEQ_TEMPLATE_MO_RELEASE > +#include "rseq-or1k-bits.h" > +#undef RSEQ_TEMPLATE_MO_RELEASE > +#undef RSEQ_TEMPLATE_MM_CID > + > +/* APIs which are not based on cpu ids. */ > + > +#define RSEQ_TEMPLATE_CPU_ID_NONE > +#define RSEQ_TEMPLATE_MO_RELAXED > +#include "rseq-or1k-bits.h" > +#undef RSEQ_TEMPLATE_MO_RELAXED > +#undef RSEQ_TEMPLATE_CPU_ID_NONE > diff --git a/tools/testing/selftests/rseq/rseq-thread-pointer.h b/tools/testing/selftests/rseq/rseq-thread-pointer.h > index 977c25d758b2..3d5019307a1b 100644 > --- a/tools/testing/selftests/rseq/rseq-thread-pointer.h > +++ b/tools/testing/selftests/rseq/rseq-thread-pointer.h > @@ -12,6 +12,8 @@ > #include "rseq-x86-thread-pointer.h" > #elif defined(__PPC__) > #include "rseq-ppc-thread-pointer.h" > +#elif defined(__or1k__) > +#include "rseq-or1k-thread-pointer.h" > #else > #include "rseq-generic-thread-pointer.h" > #endif > diff --git a/tools/testing/selftests/rseq/rseq.h b/tools/testing/selftests/rseq/rseq.h > index 4e217b620e0c..cbf114d5bb8a 100644 > --- a/tools/testing/selftests/rseq/rseq.h > +++ b/tools/testing/selftests/rseq/rseq.h > @@ -122,6 +122,8 @@ static inline struct rseq_abi *rseq_get_abi(void) > #include <rseq-s390.h> > #elif defined(__riscv) > #include <rseq-riscv.h> > +#elif defined(__or1k__) > +#include <rseq-or1k.h> > #else > #error unsupported target > #endif
diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c index 2f37961240ca..05d03e679e06 100644 --- a/tools/testing/selftests/rseq/param_test.c +++ b/tools/testing/selftests/rseq/param_test.c @@ -226,8 +226,32 @@ unsigned int yield_mod_cnt, nr_abort; "addi " INJECT_ASM_REG "," INJECT_ASM_REG ", -1\n\t" \ "bnez " INJECT_ASM_REG ", 222b\n\t" \ "333:\n\t" +#elif defined(__or1k__) +#define RSEQ_INJECT_INPUT \ + , [loop_cnt_1]"m"(loop_cnt[1]) \ + , [loop_cnt_2]"m"(loop_cnt[2]) \ + , [loop_cnt_3]"m"(loop_cnt[3]) \ + , [loop_cnt_4]"m"(loop_cnt[4]) \ + , [loop_cnt_5]"m"(loop_cnt[5]) \ + , [loop_cnt_6]"m"(loop_cnt[6]) +#define INJECT_ASM_REG "r31" + +#define RSEQ_INJECT_CLOBBER \ + , INJECT_ASM_REG + +#define RSEQ_INJECT_ASM(n) \ + "l.lwz " INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \ + "l.sfeqi " INJECT_ASM_REG ", 0\n\t" \ + "l.bf 333f\n\t" \ + " l.nop\n\t" \ + "222:\n\t" \ + "l.addi " INJECT_ASM_REG "," INJECT_ASM_REG ", -1\n\t" \ + "l.sfeqi " INJECT_ASM_REG ", 0\n\t" \ + "l.bf 222f\n\t" \ + " l.nop\n\t" \ + "333:\n\t" #else #error unsupported target #endif diff --git a/tools/testing/selftests/rseq/rseq-or1k-bits.h b/tools/testing/selftests/rseq/rseq-or1k-bits.h new file mode 100644 index 000000000000..15d0e8200cd1 --- /dev/null +++ b/tools/testing/selftests/rseq/rseq-or1k-bits.h @@ -0,0 +1,412 @@ +/* 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 __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(1, 2f, 3f, 4f) + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") +#endif + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) + RSEQ_INJECT_ASM(3) + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") + RSEQ_INJECT_ASM(4) +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") +#endif + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) + 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", RSEQ_ASM_TMP_REG_1 + 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 +} + +static inline __always_inline +int RSEQ_TEMPLATE_IDENTIFIER(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(1, 2f, 3f, 4f) + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") +#endif + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) + RSEQ_INJECT_ASM(3) + RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[cmpfail]") + RSEQ_INJECT_ASM(4) +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") + RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[error2]") +#endif + RSEQ_ASM_OP_R_LOAD(v) + RSEQ_ASM_OP_R_STORE(load) + RSEQ_ASM_OP_R_LOAD_OFF(voffp) + RSEQ_ASM_OP_R_FINAL_STORE(v, 3) + 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), + [expectnot] "r" (expectnot), + [load] "m" (*load), + [voffp] "Ir" (voffp) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG_1 + 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 +} + +static inline __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(1, 2f, 3f, 4f) +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") +#endif + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, 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 + RSEQ_ASM_OP_R_LOAD(v) + RSEQ_ASM_OP_R_ADD(count) + RSEQ_ASM_OP_R_FINAL_STORE(v, 3) + 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), + [v] "m" (*v), + [count] "r" (count) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG_1 + 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 +} + +static inline __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(1, 2f, 3f, 4f) + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error3]") +#endif + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) + RSEQ_INJECT_ASM(3) + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") + RSEQ_INJECT_ASM(4) + RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[cmpfail]") + RSEQ_INJECT_ASM(5) +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") + RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[error3]") +#endif + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) + 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), + [v] "m" (*v), + [expect] "r" (expect), + [v2] "m" (*v2), + [expect2] "r" (expect2), + [newv] "r" (newv) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG_1 + 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("expected value comparison failed"); +error3: + rseq_bug("2nd expected value comparison failed"); +#endif +} + +#define RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV + +/* + * pval = *(ptr+off) + * *pval += inc; + */ +static inline __always_inline +int RSEQ_TEMPLATE_IDENTIFIER(rseq_offset_deref_addv)(intptr_t *ptr, off_t off, intptr_t inc, + int cpu) +{ + RSEQ_INJECT_C(9) + + __asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f) +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") +#endif + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, 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 + RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, 3) + 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), + [ptr] "r" (ptr), + [off] "r" (off), + [inc] "r" (inc) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG_1 + 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 +} + +#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)) + +static inline __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(1, 2f, 3f, 4f) + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") +#endif + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) + RSEQ_INJECT_ASM(3) + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") + RSEQ_INJECT_ASM(4) +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") +#endif + RSEQ_ASM_OP_STORE(v2, newv2) + RSEQ_INJECT_ASM(5) +#ifdef RSEQ_TEMPLATE_MO_RELEASE + RSEQ_ASM_OP_FINAL_STORE_RELEASE(v, newv, 3) +#else + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) +#endif + 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), + [expect] "r" (expect), + [v] "m" (*v), + [newv] "r" (newv), + [v2] "m" (*v2), + [newv2] "r" (newv2) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG_1 + 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 +} + +static inline __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) +{ + RSEQ_INJECT_C(9) + __asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f) + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]") +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]") + RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]") +#endif + RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs) + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f) + RSEQ_INJECT_ASM(3) + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]") + RSEQ_INJECT_ASM(4) +#ifdef RSEQ_COMPARE_TWICE + RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]") + RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]") +#endif + RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len) + RSEQ_INJECT_ASM(5) +#ifdef RSEQ_TEMPLATE_MO_RELEASE + RSEQ_ASM_OP_FINAL_STORE_RELEASE(v, newv, 3) +#else + RSEQ_ASM_OP_FINAL_STORE(v, newv, 3) +#endif + 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), + [expect] "r" (expect), + [v] "m" (*v), + [newv] "r" (newv), + [dst] "r" (dst), + [src] "r" (src), + [len] "r" (len) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG_1, RSEQ_ASM_TMP_REG_2, + RSEQ_ASM_TMP_REG_3, RSEQ_ASM_TMP_REG_4 + 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 +} + +#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" diff --git a/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h b/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h new file mode 100644 index 000000000000..cda740f7aff3 --- /dev/null +++ b/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */ +#ifndef _RSEQ_OR1K_THREAD_POINTER +#define _RSEQ_OR1K_THREAD_POINTER + +static inline void *rseq_thread_pointer(void) +{ + void *__thread_register; + + __asm__ ("l.or %0, r10, r0" : "=r" (__thread_register)); + return __thread_register; +} + +#endif diff --git a/tools/testing/selftests/rseq/rseq-or1k.h b/tools/testing/selftests/rseq/rseq-or1k.h new file mode 100644 index 000000000000..9e78eebdf79a --- /dev/null +++ b/tools/testing/selftests/rseq/rseq-or1k.h @@ -0,0 +1,181 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ + +/* + * Select the instruction "l.nop 0x35" as the RSEQ_SIG. + */ +#define RSEQ_SIG 0x15000035 + +#define rseq_smp_mb() __asm__ __volatile__ ("l.msync" ::: "memory") +#define rseq_smp_rmb() rseq_smp_mb() +#define rseq_smp_wmb() rseq_smp_mb() +#define RSEQ_ASM_TMP_REG_1 "r31" +#define RSEQ_ASM_TMP_REG_2 "r29" +#define RSEQ_ASM_TMP_REG_3 "r27" +#define RSEQ_ASM_TMP_REG_4 "r25" + +#define rseq_smp_load_acquire(p) \ +__extension__ ({ \ + rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p)); \ + rseq_smp_mb(); \ + ____p1; \ +}) + +#define rseq_smp_acquire__after_ctrl_dep() rseq_smp_rmb() + +#define rseq_smp_store_release(p, v) \ +do { \ + rseq_smp_mb(); \ + RSEQ_WRITE_ONCE(*(p), v); \ +} while (0) + +#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags, start_ip, \ + post_commit_offset, abort_ip) \ + ".pushsection __rseq_cs, \"aw\"\n" \ + ".balign 32\n" \ + __rseq_str(label) ":\n" \ + ".long " __rseq_str(version) ", " __rseq_str(flags) "\n" \ + ".long 0x0, " __rseq_str(start_ip) ", " \ + "0x0, " __rseq_str(post_commit_offset) ", " \ + "0x0, " __rseq_str(abort_ip) "\n" \ + ".popsection\n\t" \ + ".pushsection __rseq_cs_ptr_array, \"aw\"\n" \ + ".long 0x0, " __rseq_str(label) "b\n" \ + ".popsection\n" + +#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \ + __RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip, \ + ((post_commit_ip) - (start_ip)), abort_ip) + +/* + * Exit points of a rseq critical section consist of all instructions outside + * of the critical section where a critical section can either branch to or + * reach through the normal course of its execution. The abort IP and the + * post-commit IP are already part of the __rseq_cs section and should not be + * explicitly defined as additional exit points. Knowing all exit points is + * useful to assist debuggers stepping over the critical section. + */ +#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip) \ + ".pushsection __rseq_exit_point_array, \"aw\"\n" \ + ".long 0x0, " __rseq_str(start_ip) ", 0x0, " __rseq_str(exit_ip) "\n" \ + ".popsection\n" + +#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs) \ + RSEQ_INJECT_ASM(1) \ + "l.movhi " RSEQ_ASM_TMP_REG_1 ", hi(" __rseq_str(cs_label) ")\n"\ + "l.ori " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 \ + ", lo(" __rseq_str(cs_label) ")\n"\ + "l.sw %[" __rseq_str(rseq_cs) "], " RSEQ_ASM_TMP_REG_1 "\n" \ + __rseq_str(label) ":\n" + +#define RSEQ_ASM_DEFINE_ABORT(label, abort_label) \ + "l.j 222f\n" \ + " l.nop\n" \ + ".balign 4\n" \ + ".long " __rseq_str(RSEQ_SIG) "\n" \ + __rseq_str(label) ":\n" \ + "l.j %l[" __rseq_str(abort_label) "]\n" \ + " l.nop\n" \ + "222:\n" + +#define RSEQ_ASM_OP_STORE(var, value) \ + "l.sw %[" __rseq_str(var) "], %[" __rseq_str(value) "]\n" + +#define RSEQ_ASM_OP_CMPEQ(var, expect, label) \ + "l.lwz " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n" \ + "l.sfne " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "]\n" \ + "l.bf " __rseq_str(label) "\n" \ + " l.nop\n" + +#define RSEQ_ASM_OP_CMPNE(var, expect, label) \ + "l.lwz " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n" \ + "l.sfeq " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "]\n" \ + "l.bf " __rseq_str(label) "\n" \ + " l.nop\n" + +#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label) \ + RSEQ_INJECT_ASM(2) \ + RSEQ_ASM_OP_CMPEQ(current_cpu_id, cpu_id, label) + +#define RSEQ_ASM_OP_R_LOAD(var) \ + "l.lwz " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n" + +#define RSEQ_ASM_OP_R_STORE(var) \ + "l.sw %[" __rseq_str(var) "], " RSEQ_ASM_TMP_REG_1 "\n" + +#define RSEQ_ASM_OP_R_LOAD_OFF(offset) \ + "l.lwz " RSEQ_ASM_TMP_REG_1 ", " \ + "%[" __rseq_str(offset) "](" RSEQ_ASM_TMP_REG_1 ")\n" + +#define RSEQ_ASM_OP_R_ADD(count) \ + "l.add " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 \ + ", %[" __rseq_str(count) "]\n" + +#define RSEQ_ASM_OP_FINAL_STORE(var, value, post_commit_label) \ + RSEQ_ASM_OP_STORE(var, value) \ + __rseq_str(post_commit_label) ":\n" + +#define RSEQ_ASM_OP_FINAL_STORE_RELEASE(var, value, post_commit_label) \ + "l.msync\n" \ + RSEQ_ASM_OP_STORE(var, value) \ + __rseq_str(post_commit_label) ":\n" + +#define RSEQ_ASM_OP_R_FINAL_STORE(var, post_commit_label) \ + "l.sw %[" __rseq_str(var) "], " RSEQ_ASM_TMP_REG_1 "\n" \ + __rseq_str(post_commit_label) ":\n" + +#define RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len) \ + "l.sfeq %[" __rseq_str(len) "], r0\n" \ + "l.bf 333f\n" \ + " l.nop\n" \ + "l.ori " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(len) "], 0\n" \ + "l.ori " RSEQ_ASM_TMP_REG_2 ", %[" __rseq_str(src) "], 0\n" \ + "l.ori " RSEQ_ASM_TMP_REG_3 ", %[" __rseq_str(dst) "], 0\n" \ + "222:\n" \ + "l.lbz " RSEQ_ASM_TMP_REG_4 ", 0(" RSEQ_ASM_TMP_REG_2 ")\n" \ + "l.sb 0(" RSEQ_ASM_TMP_REG_3 "), " RSEQ_ASM_TMP_REG_4 "\n" \ + "l.addi " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 ", -1\n" \ + "l.addi " RSEQ_ASM_TMP_REG_2 ", " RSEQ_ASM_TMP_REG_2 ", 1\n" \ + "l.addi " RSEQ_ASM_TMP_REG_3 ", " RSEQ_ASM_TMP_REG_3 ", 1\n" \ + "l.sfne " RSEQ_ASM_TMP_REG_1 ", r0\n" \ + "l.bf 222b\n" \ + " l.nop\n" \ + "333:\n" + +#define RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, post_commit_label) \ + "l.ori " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(ptr) "], 0\n" \ + RSEQ_ASM_OP_R_ADD(off) \ + "l.lwz " RSEQ_ASM_TMP_REG_1 ", 0(" RSEQ_ASM_TMP_REG_1 ")\n" \ + RSEQ_ASM_OP_R_ADD(inc) \ + __rseq_str(post_commit_label) ":\n" + +/* Per-cpu-id indexing. */ + +#define RSEQ_TEMPLATE_CPU_ID +#define RSEQ_TEMPLATE_MO_RELAXED +#include "rseq-or1k-bits.h" +#undef RSEQ_TEMPLATE_MO_RELAXED + +#define RSEQ_TEMPLATE_MO_RELEASE +#include "rseq-or1k-bits.h" +#undef RSEQ_TEMPLATE_MO_RELEASE +#undef RSEQ_TEMPLATE_CPU_ID + +/* Per-mm-cid indexing. */ + +#define RSEQ_TEMPLATE_MM_CID +#define RSEQ_TEMPLATE_MO_RELAXED +#include "rseq-or1k-bits.h" +#undef RSEQ_TEMPLATE_MO_RELAXED + +#define RSEQ_TEMPLATE_MO_RELEASE +#include "rseq-or1k-bits.h" +#undef RSEQ_TEMPLATE_MO_RELEASE +#undef RSEQ_TEMPLATE_MM_CID + +/* APIs which are not based on cpu ids. */ + +#define RSEQ_TEMPLATE_CPU_ID_NONE +#define RSEQ_TEMPLATE_MO_RELAXED +#include "rseq-or1k-bits.h" +#undef RSEQ_TEMPLATE_MO_RELAXED +#undef RSEQ_TEMPLATE_CPU_ID_NONE diff --git a/tools/testing/selftests/rseq/rseq-thread-pointer.h b/tools/testing/selftests/rseq/rseq-thread-pointer.h index 977c25d758b2..3d5019307a1b 100644 --- a/tools/testing/selftests/rseq/rseq-thread-pointer.h +++ b/tools/testing/selftests/rseq/rseq-thread-pointer.h @@ -12,6 +12,8 @@ #include "rseq-x86-thread-pointer.h" #elif defined(__PPC__) #include "rseq-ppc-thread-pointer.h" +#elif defined(__or1k__) +#include "rseq-or1k-thread-pointer.h" #else #include "rseq-generic-thread-pointer.h" #endif diff --git a/tools/testing/selftests/rseq/rseq.h b/tools/testing/selftests/rseq/rseq.h index 4e217b620e0c..cbf114d5bb8a 100644 --- a/tools/testing/selftests/rseq/rseq.h +++ b/tools/testing/selftests/rseq/rseq.h @@ -122,6 +122,8 @@ static inline struct rseq_abi *rseq_get_abi(void) #include <rseq-s390.h> #elif defined(__riscv) #include <rseq-riscv.h> +#elif defined(__or1k__) +#include <rseq-or1k.h> #else #error unsupported target #endif
Add support for OpenRISC in the rseq selftests. OpenRISC is 32-bit only. Tested this with: Compiler: gcc version 14.2.0 (GCC) Binutils: GNU assembler version 2.43.1 (or1k-smh-linux-gnu) using BFD version (GNU Binutils) 2.43.1.20241207 Linux: Linux buildroot 6.13.0-rc2-00005-g1fa73dd6c2d3-dirty #213 SMP Sat Dec 28 22:18:39 GMT 2024 openrisc GNU/Linux Glibc: 2024-12-13 e4e49583d9 Stafford Horne or1k: Update libm-test-ulps Signed-off-by: Stafford Horne <shorne@gmail.com> --- tools/testing/selftests/rseq/param_test.c | 24 + tools/testing/selftests/rseq/rseq-or1k-bits.h | 412 ++++++++++++++++++ .../selftests/rseq/rseq-or1k-thread-pointer.h | 13 + tools/testing/selftests/rseq/rseq-or1k.h | 181 ++++++++ .../selftests/rseq/rseq-thread-pointer.h | 2 + tools/testing/selftests/rseq/rseq.h | 2 + 6 files changed, 634 insertions(+) create mode 100644 tools/testing/selftests/rseq/rseq-or1k-bits.h create mode 100644 tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h create mode 100644 tools/testing/selftests/rseq/rseq-or1k.h