From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by sourceware.org (Postfix) with ESMTP id 959EF3857C79 for ; Wed, 7 Sep 2022 07:43:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 959EF3857C79 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=loongson.cn Received: from 5.5.5 (unknown [10.2.5.5]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxX+C0SxhjcoATAA--.14301S2; Wed, 07 Sep 2022 15:43:52 +0800 (CST) From: Lulu Cheng To: gcc-patches@gcc.gnu.org Cc: xry111@xry111.site, xuchenghua@loongson.cn, Lulu Cheng Subject: [PATCH v2] LoongArch: Fix pr106828 by define hook TARGET_ASAN_SHADOW_OFFSET in loongarch backend. Date: Wed, 7 Sep 2022 15:39:47 +0800 Message-Id: <20220907073946.1102002-1-chenglulu@loongson.cn> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:AQAAf8DxX+C0SxhjcoATAA--.14301S2 X-Coremail-Antispam: 1UD129KBjvJXoW7uFWrXFWrtw15JFyUArW3Awb_yoW8KFW3pa sxZr17tr48JFZxKwn8t345XrsrArsrWa12v3WSkrW0ka13A34xZF1kGF93tayUJayUJry2 vw1xCa13XF4jyw7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUka14x267AKxVWUJVW8JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26ryj6F1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVWxJr0_GcWl84ACjcxK6I8E87Iv6xkF7I0E14v26r xl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj 6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr 0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7MxkIecxEwVCm-wCF 04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r 18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij64vI r41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr 1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvE x4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUywZ7UUUUU= X-CM-SenderInfo: xfkh0wpoxo3qxorr0wxvrqhubq/ X-Spam-Status: No, score=-12.6 required=5.0 tests=BAYES_00,GIT_PATCH_0,KAM_DMARC_STATUS,SPF_HELO_PASS,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Sorry, asan shadow offset is wrong in v1. In the file asan_mapping.h line 207: # define ASAN_SHADOW_OFFSET_CONST 0x0000400000000000 So it's should be 1<<46. ------------------------------------ gcc/ChangeLog: PR target/106828 * config/loongarch/loongarch.cc (loongarch_asan_shadow_offset): New. (TARGET_ASAN_SHADOW_OFFSET): New. gcc/testsuite/ChangeLog: PR target/106828 * g++.target/loongarch/pr106828.C: New test. --- gcc/config/loongarch/loongarch.cc | 13 +++++++++++++ gcc/testsuite/g++.target/loongarch/pr106828.C | 4 ++++ 2 files changed, 17 insertions(+) create mode 100644 gcc/testsuite/g++.target/loongarch/pr106828.C diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc index 10acf06ef79..424fa4487f8 100644 --- a/gcc/config/loongarch/loongarch.cc +++ b/gcc/config/loongarch/loongarch.cc @@ -6471,6 +6471,16 @@ loongarch_use_anchors_for_symbol_p (const_rtx symbol) return default_use_anchors_for_symbol_p (symbol); } +/* Implement the TARGET_ASAN_SHADOW_OFFSET hook. */ + +static unsigned HOST_WIDE_INT +loongarch_asan_shadow_offset (void) +{ + /* We only have libsanitizer support for LOONGARCH64 at present. + This value is taken from the file libsanitizer/asan/asan_mappint.h. */ + return TARGET_64BIT ? (HOST_WIDE_INT_1 << 46) : 0; +} + /* Initialize the GCC target structure. */ #undef TARGET_ASM_ALIGNED_HI_OP #define TARGET_ASM_ALIGNED_HI_OP "\t.half\t" @@ -6665,6 +6675,9 @@ loongarch_use_anchors_for_symbol_p (const_rtx symbol) #undef TARGET_USE_ANCHORS_FOR_SYMBOL_P #define TARGET_USE_ANCHORS_FOR_SYMBOL_P loongarch_use_anchors_for_symbol_p +#undef TARGET_ASAN_SHADOW_OFFSET +#define TARGET_ASAN_SHADOW_OFFSET loongarch_asan_shadow_offset + struct gcc_target targetm = TARGET_INITIALIZER; #include "gt-loongarch.h" diff --git a/gcc/testsuite/g++.target/loongarch/pr106828.C b/gcc/testsuite/g++.target/loongarch/pr106828.C new file mode 100644 index 00000000000..190c1db715f --- /dev/null +++ b/gcc/testsuite/g++.target/loongarch/pr106828.C @@ -0,0 +1,4 @@ +/* { dg-do-preprocess } */ +/* { dg-options "-mabi=lp64d -fsanitize=address" } */ + +/* Tests whether the compiler supports compile option '-fsanitize=address'. */ -- 2.31.1