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[2620:137:e000::1:20]) by mx.google.com with ESMTP id u9-20020a170903124900b0017a034f7246si16399758plh.560.2022.11.22.12.41.55; Tue, 22 Nov 2022 12:42:09 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@efficios.com header.s=smtpout1 header.b=U0mZ9JNb; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=efficios.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234962AbiKVUku (ORCPT + 99 others); Tue, 22 Nov 2022 15:40:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234916AbiKVUjz (ORCPT ); Tue, 22 Nov 2022 15:39:55 -0500 Received: from smtpout.efficios.com (smtpout.efficios.com [167.114.26.122]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 216B06B3A2; Tue, 22 Nov 2022 12:39:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=efficios.com; s=smtpout1; t=1669149589; bh=s5FLkqjgOOf6yIWKRu/RCMYBBwBDTEIxmomNOmbCqBw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U0mZ9JNbRYiR7EA39L3eWVsPxblXGTrTw8EVvjXZXsTTFUW5kgW0yO3vlrkaAHnTc 4c4xu3WMtwGkqIitB38fzQ83T6q10pVL88G+y+HorPXs0xjkB3j/pjUyaPpNaWxbDm V+l7BGoqO5FhnFlhpFQ5TuBTW8GLESMLX/CRaCWMI0H/aj372uXZ3TFyKd1Z8lmMw9 8FiK25g9UsqoBpgZ98GH09wyanyb2nG83YNFPtk5822pYGdeiXseru7XCMvOC1MwFP xcVRsPrKoltCQcHbscOcH5DonXxugmPWx/3JkHlEXCMTr7xY6F/SJXwohDiMs+9nLp N04JPBqhIp6+A== Received: from localhost.localdomain (192-222-180-24.qc.cable.ebox.net [192.222.180.24]) by smtpout.efficios.com (Postfix) with ESMTPSA id 4NGx2Y4H7DzX52; Tue, 22 Nov 2022 15:39:49 -0500 (EST) From: Mathieu Desnoyers To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , "Paul E . McKenney" , Boqun Feng , "H . Peter Anvin" , Paul Turner , linux-api@vger.kernel.org, Christian Brauner , Florian Weimer , David.Laight@ACULAB.COM, carlos@redhat.com, Peter Oskolkov , Alexander Mikhalitsyn , Chris Kennelly , Mathieu Desnoyers , Will Deacon , Mark Rutland , Catalin Marinas Subject: [PATCH 13/30] selftests/rseq: arm64: Template memory ordering and percpu access mode Date: Tue, 22 Nov 2022 15:39:15 -0500 Message-Id: <20221122203932.231377-14-mathieu.desnoyers@efficios.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221122203932.231377-1-mathieu.desnoyers@efficios.com> References: <20221122203932.231377-1-mathieu.desnoyers@efficios.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1750230346179825371?= X-GMAIL-MSGID: =?utf-8?q?1750230346179825371?= Introduce a rseq-arm64-bits.h template header which is internally included to generate the static inline functions covering: - relaxed and release memory ordering, - per-cpu-id and per-mm-cid per-cpu data access. Signed-off-by: Mathieu Desnoyers Cc: Will Deacon Cc: Mark Rutland Cc: Catalin Marinas --- Changes since v4: - Use RSEQ_TEMPLATE_CPU_ID_FIELD. --- .../testing/selftests/rseq/rseq-arm64-bits.h | 392 +++++++++++++ tools/testing/selftests/rseq/rseq-arm64.h | 516 +----------------- 2 files changed, 422 insertions(+), 486 deletions(-) create mode 100644 tools/testing/selftests/rseq/rseq-arm64-bits.h diff --git a/tools/testing/selftests/rseq/rseq-arm64-bits.h b/tools/testing/selftests/rseq/rseq-arm64-bits.h new file mode 100644 index 000000000000..cc7226b1efe1 --- /dev/null +++ b/tools/testing/selftests/rseq/rseq-arm64-bits.h @@ -0,0 +1,392 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * rseq-arm64-bits.h + * + * (C) Copyright 2016-2022 - Mathieu Desnoyers + * (C) Copyright 2018 - Will Deacon + */ + +#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(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(newv, 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] "Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + [v] "Qo" (*v), + [expect] "r" (expect), + [newv] "r" (newv) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG + : 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_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(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] "Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + [v] "Qo" (*v), + [expectnot] "r" (expectnot), + [load] "Qo" (*load), + [voffp] "r" (voffp) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG + : 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(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] "Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + [v] "Qo" (*v), + [count] "r" (count) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG + : 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(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(newv, v, 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] "Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + [v] "Qo" (*v), + [expect] "r" (expect), + [v2] "Qo" (*v2), + [expect2] "r" (expect2), + [newv] "r" (newv) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG + : 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("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)) + +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(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(newv2, v2) + RSEQ_INJECT_ASM(5) +#ifdef RSEQ_TEMPLATE_MO_RELEASE + RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 3) +#else + RSEQ_ASM_OP_FINAL_STORE(newv, v, 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] "Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + [expect] "r" (expect), + [v] "Qo" (*v), + [newv] "r" (newv), + [v2] "Qo" (*v2), + [newv2] "r" (newv2) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG + : 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_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(newv, v, 3) +#else + RSEQ_ASM_OP_FINAL_STORE(newv, v, 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] "Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD), + [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), + [expect] "r" (expect), + [v] "Qo" (*v), + [newv] "r" (newv), + [dst] "r" (dst), + [src] "r" (src), + [len] "r" (len) + RSEQ_INJECT_INPUT + : "memory", RSEQ_ASM_TMP_REG, RSEQ_ASM_TMP_REG_2 + : 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" diff --git a/tools/testing/selftests/rseq/rseq-arm64.h b/tools/testing/selftests/rseq/rseq-arm64.h index 49c387fcd868..85b90977e7e6 100644 --- a/tools/testing/selftests/rseq/rseq-arm64.h +++ b/tools/testing/selftests/rseq/rseq-arm64.h @@ -2,7 +2,7 @@ /* * rseq-arm64.h * - * (C) Copyright 2016-2018 - Mathieu Desnoyers + * (C) Copyright 2016-2022 - Mathieu Desnoyers * (C) Copyright 2018 - Will Deacon */ @@ -200,490 +200,34 @@ do { \ " cbnz " RSEQ_ASM_TMP_REG_2 ", 222b\n" \ "333:\n" -static inline __attribute__((always_inline)) -int 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(newv, 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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [v] "Qo" (*v), - [expect] "r" (expect), - [newv] "r" (newv) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG - : 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_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(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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [v] "Qo" (*v), - [expectnot] "r" (expectnot), - [load] "Qo" (*load), - [voffp] "r" (voffp) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG - : 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 -} +/* Per-cpu-id indexing. */ -static inline __attribute__((always_inline)) -int rseq_addv(intptr_t *v, intptr_t count, int cpu) -{ - RSEQ_INJECT_C(9) +#define RSEQ_TEMPLATE_CPU_ID +#define RSEQ_TEMPLATE_MO_RELAXED +#include "rseq-arm64-bits.h" +#undef RSEQ_TEMPLATE_MO_RELAXED - __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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [v] "Qo" (*v), - [count] "r" (count) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG - : 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_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(newv2, v2) - RSEQ_INJECT_ASM(5) - RSEQ_ASM_OP_FINAL_STORE(newv, v, 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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [expect] "r" (expect), - [v] "Qo" (*v), - [newv] "r" (newv), - [v2] "Qo" (*v2), - [newv2] "r" (newv2) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG - : 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_cmpeqv_trystorev_storev_release(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(newv2, v2) - RSEQ_INJECT_ASM(5) - RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [expect] "r" (expect), - [v] "Qo" (*v), - [newv] "r" (newv), - [v2] "Qo" (*v2), - [newv2] "r" (newv2) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG - : 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_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(newv, v, 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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [v] "Qo" (*v), - [expect] "r" (expect), - [v2] "Qo" (*v2), - [expect2] "r" (expect2), - [newv] "r" (newv) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG - : 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("expected value comparison failed"); -error3: - rseq_after_asm_goto(); - 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) -{ - 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) - RSEQ_ASM_OP_FINAL_STORE(newv, v, 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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [expect] "r" (expect), - [v] "Qo" (*v), - [newv] "r" (newv), - [dst] "r" (dst), - [src] "r" (src), - [len] "r" (len) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG, RSEQ_ASM_TMP_REG_2 - : 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_cmpeqv_trymemcpy_storev_release(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) - RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 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] "Qo" (rseq_get_abi()->cpu_id), - [rseq_cs] "m" (rseq_get_abi()->rseq_cs.arch.ptr), - [expect] "r" (expect), - [v] "Qo" (*v), - [newv] "r" (newv), - [dst] "r" (dst), - [src] "r" (src), - [len] "r" (len) - RSEQ_INJECT_INPUT - : "memory", RSEQ_ASM_TMP_REG, RSEQ_ASM_TMP_REG_2 - : 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 -} +#define RSEQ_TEMPLATE_MO_RELEASE +#include "rseq-arm64-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-arm64-bits.h" +#undef RSEQ_TEMPLATE_MO_RELAXED + +#define RSEQ_TEMPLATE_MO_RELEASE +#include "rseq-arm64-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-arm64-bits.h" +#undef RSEQ_TEMPLATE_MO_RELAXED +#undef RSEQ_TEMPLATE_CPU_ID_NONE