Message ID | 20231116062307.3292483-1-mengqinggang@loongson.cn |
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server2.sourceware.org Received: from loongson.cn (unknown [10.2.6.5]) by gateway (Coremail) with SMTP id _____8Dx_7tOtVVlM3k6AA--.56260S3; Thu, 16 Nov 2023 14:23:10 +0800 (CST) Received: from 5.5.5 (unknown [10.2.6.5]) by localhost.localdomain (Coremail) with SMTP id AQAAf8AxndxOtVVlfNJDAA--.16902S2; Thu, 16 Nov 2023 14:23:10 +0800 (CST) From: mengqinggang <mengqinggang@loongson.cn> To: binutils@sourceware.org Cc: xuchenghua@loongson.cn, chenglulu@loongson.cn, liuzhensong@loongson.cn, xry111@xry111.site, i.swmail@xen0n.name, maskray@google.com, mengqinggang <mengqinggang@loongson.cn> Subject: [PATCH v1 0/6] Fix some bugs of relaxation Date: Thu, 16 Nov 2023 14:23:01 +0800 Message-Id: <20231116062307.3292483-1-mengqinggang@loongson.cn> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: AQAAf8AxndxOtVVlfNJDAA--.16902S2 X-CM-SenderInfo: 5phqw15lqjwttqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBj93XoW7Kw13tF4xGrWUKw4kCw1ruFX_yoW8Gw48pr ZxuF4ftF18AFsxWrnxCayfW3Z8GFn7Gry0q3ZIgr10k398Jry0qay0yr43XF98Jws8CF1r Zr10v3WrGF1jyrXCm3ZEXasCq-sJn29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Jr0_Gr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv 67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x07jUsqXUUUUU= X-Spam-Status: No, score=-6.4 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, SPF_HELO_NONE, 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 X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Binutils mailing list <binutils.sourceware.org> List-Unsubscribe: <https://sourceware.org/mailman/options/binutils>, <mailto:binutils-request@sourceware.org?subject=unsubscribe> List-Archive: <https://sourceware.org/pipermail/binutils/> List-Post: <mailto:binutils@sourceware.org> List-Help: <mailto:binutils-request@sourceware.org?subject=help> List-Subscribe: <https://sourceware.org/mailman/listinfo/binutils>, <mailto:binutils-request@sourceware.org?subject=subscribe> Errors-To: binutils-bounces+ouuuleilei=gmail.com@sourceware.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782700623544602246 X-GMAIL-MSGID: 1782700623544602246 |
Series | Fix some bugs of relaxation | |
Message
mengqinggang
Nov. 16, 2023, 6:23 a.m. UTC
These patches mainly fix the shared objects can't be relaxed bug. The "elf_seg_map (info->output_bfd) == NULL" condition prevent the shared object to be relaxed. Ld can perform up to 10 relaxation tries. In first try, both execute file and shared object do not meet this condition. But the execute file can trigger a second try because of the program header size change due to the number of segement change (execute file add extra INTERP segemnt). mengqinggang (6): LoongArch: Fix ld --no-relax bug LoongArch: Directly delete relaxed instuctions in first relaxation pass LoongArch: Multiple relax_trip in one relax_pass LoongArch: Remove "elf_seg_map (info->output_bfd) == NULL" relaxation condition LoongArch: Modify link_info.relax_pass from 3 to 2 LoongArch: Add more relaxation testcases bfd/elfnn-loongarch.c | 53 +++++++----- ld/emultempl/loongarchelf.em | 20 ++++- .../ld-loongarch-elf/relax-segment-max.s | 13 +++ .../ld-loongarch-elf/relax-segment-min.s | 13 +++ ld/testsuite/ld-loongarch-elf/relax-so.s | 4 + ld/testsuite/ld-loongarch-elf/relax.exp | 80 +++++++++++++++++-- 6 files changed, 158 insertions(+), 25 deletions(-) create mode 100644 ld/testsuite/ld-loongarch-elf/relax-segment-max.s create mode 100644 ld/testsuite/ld-loongarch-elf/relax-segment-min.s create mode 100644 ld/testsuite/ld-loongarch-elf/relax-so.s