From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.1 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 18374 invoked from network); 11 Jan 2021 17:01:37 -0000 Received: from mother.openwall.net (195.42.179.200) by inbox.vuxu.org with ESMTPUTF8; 11 Jan 2021 17:01:37 -0000 Received: (qmail 3288 invoked by uid 550); 11 Jan 2021 17:01:35 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: musl@lists.openwall.com Received: (qmail 3258 invoked from network); 11 Jan 2021 17:01:35 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=azfq8+7I0P3tsnsg+I2kreP6H39shDjbkh3oegjqWoc=; b=o2momk4qYhW84YgxVeUcyDfZXvvBalWTTvLYY3Ac4NjPEDIJFy2QfCcEagoHKcklQ2 48iX8bl/nDaFtzUNHmi6nOb4N6Yx1WOcJqU0uAmD+oYqO5LlNhRt4EWbyDZlGlzkDOXK eeBATZXNbSGOu5Ydn3qRuJqPsI9nVMlFlr4x8amO+i8g4rBy3meAwIc5lIEH8njI2jux PrFu9h1JVvijmmdRBc0zbsJQof1pFuBpiHQE9dc1PxREJBp+c20ajARF8PFLF08P5dKt uo0ktUKGU8I17OZUAOL1nyqbxCQBqh5diydxKWztw7aFG8YNyiUrAhEe2aFfeqdlSLeG LauA== 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=azfq8+7I0P3tsnsg+I2kreP6H39shDjbkh3oegjqWoc=; b=Df9AQwvdlsGFf/A9Pnq+36QX6Gad5M4q+6GuhK+nv15wKSMhR8u/IlFgGkp716iMei ztnCpd7jadaRysGcBITnjgRJMw+gALoZMLy6rnJUAsotqiuwoGIeRhx6iRPKqUrZdouE lLCXCidaM+qvnPpu3ZNZ0B6bWSMEahV7vGkM2YTJcg3CdvNF5XfmFswzrHfFxbrmmMnE mVvL64GhAJqWih+O1FqXJPeJPAWWfhitK9bCEMRZURdXdNNkM/4pA+vequNCpyDA6uyE dtI5OQa4wHGnO8BfDk2O52o6ceyVo9Upsvo7i0TKjD5NVAvVgbXuKyZ6eldW5aZOTg0d h1Qg== X-Gm-Message-State: AOAM533/UulHD0piSHDnPoMHzfEAtks+VZWklQgNBUgpqxsX3Bl22Tbh lxE710Jpejf8Zs3Pfn4rHxCAQIu0aURDwHM1Cd2/89ixjQ== X-Google-Smtp-Source: ABdhPJxauhNdUOqliCk5pHVUXGUws0VWahJEqZh5sn4EqyyGqrkxNgq0Xanv41UxzZGdO33hfrwh+kvFe75LsmEBlaM= X-Received: by 2002:a05:600c:255:: with SMTP id 21mr554459wmj.69.1610384482899; Mon, 11 Jan 2021 09:01:22 -0800 (PST) MIME-Version: 1.0 From: Sagar Tiwari Date: Mon, 11 Jan 2021 22:31:21 +0530 Message-ID: To: musl@lists.openwall.com Content-Type: text/plain; charset="UTF-8" Subject: [musl] printf segfaults on recent musl versions Hi, Apologies if this isn't a support forum for musl. I couldn't find any such portal online. I'm trying to compile a program with musl libc. Dynamically linked version of this program works fine, but the statically linked version segfaults whenever `printf` is invoked. This is how a debugging session looks like: 
$ gdb out/sm
GNU gdb (GDB) 9.2
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Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
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Reading symbols from out/sm...
(gdb) b printf
Breakpoint 1 at 0x100ac: file src/stdio/printf.c, line 5.
(gdb) r
Starting program: /home/fctorial/src/pgs/c/out/sm

Breakpoint 1, printf (fmt=0x1004f  "hello world from printf\n")
at src/stdio/printf.c:5
5       {
(gdb) n

Program received signal SIGSEGV, Segmentation fault.
0x000000000001010a in printf (fmt=0x1004f  "hello world from
printf\n") at src/stdio/printf.c:5
5       {
(gdb) quit
A debugging session is active.

        Inferior 1 [process 25984] will be killed.

Quit anyway? (y or n) EOF [assumed Y]
This issue appears when linking with recent musl versions (within an year). 1.0.0 doesn't have this issue. I can call other functions like 'rand', 'strlen' without any issue. `printf` and `puts` are segfaulting.