411 lines
12 KiB
C
411 lines
12 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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#include "rseq-bits-template.h"
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#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
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(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
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static inline __always_inline
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int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
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{
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RSEQ_INJECT_C(9)
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__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
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#endif
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RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
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RSEQ_INJECT_ASM(3)
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
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RSEQ_INJECT_ASM(4)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
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#endif
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RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
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RSEQ_INJECT_ASM(5)
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RSEQ_ASM_DEFINE_ABORT(4, abort)
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: /* gcc asm goto does not allow outputs */
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: [cpu_id] "r" (cpu),
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[current_cpu_id] "m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
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[rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr),
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[v] "m" (*v),
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[expect] "r" (expect),
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[newv] "r" (newv)
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RSEQ_INJECT_INPUT
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: "memory", RSEQ_ASM_TMP_REG_1
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RSEQ_INJECT_CLOBBER
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: abort, cmpfail
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#ifdef RSEQ_COMPARE_TWICE
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, error1, error2
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#endif
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);
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return 0;
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abort:
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RSEQ_INJECT_FAILED
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return -1;
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cmpfail:
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return 1;
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#ifdef RSEQ_COMPARE_TWICE
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error1:
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rseq_bug("cpu_id comparison failed");
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error2:
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rseq_bug("expected value comparison failed");
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#endif
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}
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static inline __always_inline
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int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
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off_t voffp, intptr_t *load, int cpu)
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{
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RSEQ_INJECT_C(9)
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__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
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#endif
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RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
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RSEQ_INJECT_ASM(3)
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RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[cmpfail]")
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RSEQ_INJECT_ASM(4)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
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RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[error2]")
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#endif
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RSEQ_ASM_OP_R_LOAD(v)
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RSEQ_ASM_OP_R_STORE(load)
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RSEQ_ASM_OP_R_LOAD_OFF(voffp)
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RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
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RSEQ_INJECT_ASM(5)
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RSEQ_ASM_DEFINE_ABORT(4, abort)
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: /* gcc asm goto does not allow outputs */
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: [cpu_id] "r" (cpu),
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[current_cpu_id] "m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
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[rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr),
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[v] "m" (*v),
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[expectnot] "r" (expectnot),
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[load] "m" (*load),
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[voffp] "r" (voffp)
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RSEQ_INJECT_INPUT
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: "memory", RSEQ_ASM_TMP_REG_1
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RSEQ_INJECT_CLOBBER
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: abort, cmpfail
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#ifdef RSEQ_COMPARE_TWICE
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, error1, error2
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#endif
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);
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return 0;
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abort:
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RSEQ_INJECT_FAILED
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return -1;
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cmpfail:
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return 1;
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#ifdef RSEQ_COMPARE_TWICE
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error1:
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rseq_bug("cpu_id comparison failed");
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error2:
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rseq_bug("expected value comparison failed");
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#endif
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}
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static inline __always_inline
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int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
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{
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RSEQ_INJECT_C(9)
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__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
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#endif
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RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
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RSEQ_INJECT_ASM(3)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
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#endif
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RSEQ_ASM_OP_R_LOAD(v)
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RSEQ_ASM_OP_R_ADD(count)
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RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
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RSEQ_INJECT_ASM(4)
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RSEQ_ASM_DEFINE_ABORT(4, abort)
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: /* gcc asm goto does not allow outputs */
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: [cpu_id] "r" (cpu),
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[current_cpu_id] "m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
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[rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr),
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[v] "m" (*v),
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[count] "r" (count)
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RSEQ_INJECT_INPUT
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: "memory", RSEQ_ASM_TMP_REG_1
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RSEQ_INJECT_CLOBBER
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: abort
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#ifdef RSEQ_COMPARE_TWICE
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, error1
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#endif
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);
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return 0;
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abort:
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RSEQ_INJECT_FAILED
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return -1;
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#ifdef RSEQ_COMPARE_TWICE
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error1:
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rseq_bug("cpu_id comparison failed");
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#endif
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}
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static inline __always_inline
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int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
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intptr_t *v2, intptr_t expect2,
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intptr_t newv, int cpu)
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{
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RSEQ_INJECT_C(9)
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__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error3]")
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#endif
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RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
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RSEQ_INJECT_ASM(3)
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
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RSEQ_INJECT_ASM(4)
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RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[cmpfail]")
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RSEQ_INJECT_ASM(5)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
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RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[error3]")
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#endif
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RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
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RSEQ_INJECT_ASM(6)
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RSEQ_ASM_DEFINE_ABORT(4, abort)
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: /* gcc asm goto does not allow outputs */
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: [cpu_id] "r" (cpu),
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[current_cpu_id] "m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
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[rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr),
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[v] "m" (*v),
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[expect] "r" (expect),
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[v2] "m" (*v2),
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[expect2] "r" (expect2),
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[newv] "r" (newv)
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RSEQ_INJECT_INPUT
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: "memory", RSEQ_ASM_TMP_REG_1
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RSEQ_INJECT_CLOBBER
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: abort, cmpfail
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#ifdef RSEQ_COMPARE_TWICE
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, error1, error2, error3
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#endif
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);
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return 0;
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abort:
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RSEQ_INJECT_FAILED
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return -1;
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cmpfail:
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return 1;
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#ifdef RSEQ_COMPARE_TWICE
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error1:
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rseq_bug("cpu_id comparison failed");
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error2:
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rseq_bug("expected value comparison failed");
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error3:
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rseq_bug("2nd expected value comparison failed");
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#endif
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}
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#define RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
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/*
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* pval = *(ptr+off)
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* *pval += inc;
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*/
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static inline __always_inline
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int RSEQ_TEMPLATE_IDENTIFIER(rseq_offset_deref_addv)(intptr_t *ptr, off_t off, intptr_t inc, int cpu)
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{
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RSEQ_INJECT_C(9)
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__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
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#endif
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RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
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RSEQ_INJECT_ASM(3)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
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#endif
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RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, 3)
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RSEQ_INJECT_ASM(4)
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RSEQ_ASM_DEFINE_ABORT(4, abort)
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: /* gcc asm goto does not allow outputs */
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: [cpu_id] "r" (cpu),
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[current_cpu_id] "m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
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[rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr),
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[ptr] "r" (ptr),
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[off] "er" (off),
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[inc] "er" (inc)
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RSEQ_INJECT_INPUT
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: "memory", RSEQ_ASM_TMP_REG_1
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RSEQ_INJECT_CLOBBER
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: abort
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#ifdef RSEQ_COMPARE_TWICE
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, error1
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#endif
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);
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return 0;
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abort:
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RSEQ_INJECT_FAILED
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return -1;
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#ifdef RSEQ_COMPARE_TWICE
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error1:
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rseq_bug("cpu_id comparison failed");
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#endif
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}
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#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
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(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
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#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
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(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
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static inline __always_inline
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int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
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intptr_t *v2, intptr_t newv2,
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intptr_t newv, int cpu)
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{
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RSEQ_INJECT_C(9)
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__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
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#endif
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RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
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RSEQ_INJECT_ASM(3)
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
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RSEQ_INJECT_ASM(4)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
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#endif
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RSEQ_ASM_OP_STORE(newv2, v2)
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RSEQ_INJECT_ASM(5)
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#ifdef RSEQ_TEMPLATE_MO_RELEASE
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RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 3)
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#else
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RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
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#endif
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RSEQ_INJECT_ASM(6)
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RSEQ_ASM_DEFINE_ABORT(4, abort)
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: /* gcc asm goto does not allow outputs */
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: [cpu_id] "r" (cpu),
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[current_cpu_id] "m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
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[rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr),
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[expect] "r" (expect),
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[v] "m" (*v),
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[newv] "r" (newv),
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[v2] "m" (*v2),
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[newv2] "r" (newv2)
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RSEQ_INJECT_INPUT
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: "memory", RSEQ_ASM_TMP_REG_1
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RSEQ_INJECT_CLOBBER
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: abort, cmpfail
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#ifdef RSEQ_COMPARE_TWICE
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, error1, error2
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#endif
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);
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return 0;
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abort:
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RSEQ_INJECT_FAILED
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return -1;
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cmpfail:
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return 1;
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#ifdef RSEQ_COMPARE_TWICE
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error1:
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rseq_bug("cpu_id comparison failed");
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error2:
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rseq_bug("expected value comparison failed");
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#endif
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}
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static inline __always_inline
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int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
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void *dst, void *src, size_t len,
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intptr_t newv, int cpu)
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{
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RSEQ_INJECT_C(9)
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__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
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RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
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#endif
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RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
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RSEQ_INJECT_ASM(3)
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
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RSEQ_INJECT_ASM(4)
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#ifdef RSEQ_COMPARE_TWICE
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RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
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RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
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#endif
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RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len)
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RSEQ_INJECT_ASM(5)
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#ifdef RSEQ_TEMPLATE_MO_RELEASE
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RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 3)
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#else
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RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
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#endif
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RSEQ_INJECT_ASM(6)
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RSEQ_ASM_DEFINE_ABORT(4, abort)
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: /* gcc asm goto does not allow outputs */
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: [cpu_id] "r" (cpu),
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[current_cpu_id] "m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
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[rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr),
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[expect] "r" (expect),
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[v] "m" (*v),
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[newv] "r" (newv),
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[dst] "r" (dst),
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[src] "r" (src),
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[len] "r" (len)
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RSEQ_INJECT_INPUT
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: "memory", RSEQ_ASM_TMP_REG_1, RSEQ_ASM_TMP_REG_2,
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RSEQ_ASM_TMP_REG_3, RSEQ_ASM_TMP_REG_4
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RSEQ_INJECT_CLOBBER
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: abort, cmpfail
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#ifdef RSEQ_COMPARE_TWICE
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, error1, error2
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#endif
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);
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return 0;
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abort:
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RSEQ_INJECT_FAILED
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return -1;
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cmpfail:
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return 1;
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#ifdef RSEQ_COMPARE_TWICE
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error1:
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rseq_bug("cpu_id comparison failed");
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error2:
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rseq_bug("expected value comparison failed");
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#endif
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}
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#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
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(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
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#include "rseq-bits-reset.h"
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