From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id gh0UD+iMDWDSYwAAWB0awg (envelope-from ) for ; Sun, 24 Jan 2021 10:06:16 -0500 Received: by simark.ca (Postfix, from userid 112) id 263E81EF80; Sun, 24 Jan 2021 10:06:16 -0500 (EST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 9B0AC1E940 for ; Sun, 24 Jan 2021 10:06:14 -0500 (EST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id EA55D385782B; Sun, 24 Jan 2021 15:06:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EA55D385782B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1611500774; bh=IFHa/W+LwVEF+XeyxAb5cJPhIzrOWrjBY8rHScsox0U=; h=Date:Subject:To:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=JrDBFhgUoEDHnzuWO4DT0thJ0H7amAdhsx1fsw+LqsUPQFTbajcruFlX73Db7qvH3 5Rzvqds+O23CNYz8UNGmCAByhgw2DNlqcZ0BxPSImu+JM6ClR0DMTGocipLQiogZBe G+jAmKHyctacQZoIPZPn9mT23oOJNeL7vtZlyF6c= Received: from mail-io1-xd31.google.com (mail-io1-xd31.google.com [IPv6:2607:f8b0:4864:20::d31]) by sourceware.org (Postfix) with ESMTPS id E1122385782B for ; Sun, 24 Jan 2021 15:06:11 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org E1122385782B Received: by mail-io1-xd31.google.com with SMTP id e22so21386173iom.5 for ; Sun, 24 Jan 2021 07:06:11 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=IFHa/W+LwVEF+XeyxAb5cJPhIzrOWrjBY8rHScsox0U=; b=Z8Lx7P0ajOfNeQK4nuFRzqCX0LYuaLdcWgSMLqrmqyBhRd4hdkTF1g91nb4tb45G7J GCXysrWNNTrPcYTorg79WKH8INroUvTEWyy9OyJvLyVN5f1Bw+3EAadOG3w7VUOwiXg+ H4lvUQAIpqMgNRhxK+GJfW/XMUIVZpec78Evy7IGrf+xtMLOtsdW4xGunBoNWRTVdZM2 +9BIJV4I0RV8TSGK+o7Q6bUnol6I+2AqAV85EAZf9S8aAgvA6/bNikbYMgz+yvxV1Ivv uaSiZ0etjWIVqmv3zGzXzryGWWfon8TiRgcztmUyAGK3+TsLsjUoHMVTQrsfLdCvJPsJ UTLA== X-Gm-Message-State: AOAM532F62ggRQ0dvOW3geC0upNth6r5F5iNMD3SO7uLhx5P4/69dw71 5veIvWBVlBMmvYXg/jiaRLJYeku0vSXA7w1a1GXWviUSaYs= X-Google-Smtp-Source: ABdhPJylA1uyp6yKI9a61KxC2ANS3SZOlKxoj9TtlvPW8zTrXZtUI4hT7htSlRkC0i8IukzM4T7kKdpsWxblaDxEtZQ= X-Received: by 2002:a02:e87:: with SMTP id 129mr2005073jae.34.1611500771061; Sun, 24 Jan 2021 07:06:11 -0800 (PST) MIME-Version: 1.0 Received: by 2002:a6b:c88b:0:0:0:0:0 with HTTP; Sun, 24 Jan 2021 07:06:10 -0800 (PST) Date: Sun, 24 Jan 2021 09:06:10 -0600 Message-ID: Subject: Why does `disassemble` behave differently on Linux and Mac? To: gdb@sourceware.org Content-Type: text/plain; charset="UTF-8" X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Peng Yu via Gdb Reply-To: Peng Yu Errors-To: gdb-bounces@sourceware.org Sender: "Gdb" Hi, https://visualgdb.com/gdbreference/commands/set_disassembly-flavor I am trying to follow the above example, but it does behave the same on Linux and Mac. Does anybody know how to make it work on Mac? Thanks. On Linux: $ uname Linux $ cat func.c int func(int a, int b) { return a + b; } $ gcc -c func.c $ gdb -q func.o Reading symbols from func.o... (No debugging symbols found in func.o) (gdb) show disassembly-flavor The disassembly flavor is "att". (gdb) disassemble func Dump of assembler code for function func: 0x0000000000000000 <+0>: push %rbp 0x0000000000000001 <+1>: mov %rsp,%rbp 0x0000000000000004 <+4>: mov %edi,-0x4(%rbp) 0x0000000000000007 <+7>: mov %esi,-0x8(%rbp) 0x000000000000000a <+10>: mov -0x4(%rbp),%edx 0x000000000000000d <+13>: mov -0x8(%rbp),%eax 0x0000000000000010 <+16>: add %edx,%eax 0x0000000000000012 <+18>: pop %rbp 0x0000000000000013 <+19>: ret End of assembler dump. On Mac: $ uname Darwin $ cat func.c int func(int a, int b) { return a + b; } $ gcc -c func.c $ gdb -q func.o Reading symbols from func.o... (No debugging symbols found in func.o) (gdb) show disassembly-flavor The disassembly flavor is "att". (gdb) disassemble func No symbol table is loaded. Use the "file" command. -- Regards, Peng