tree: https://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git linux-next head: 1bcbfbfdeb0091036db7a32e1cd31b49cce5983a commit: f44f1e7da7c8e3f4575d5d61c4df978496903fcc [7/9] um: Avoid longjmp/setjmp symbol clashes with libpthread.a config: um-x86_64_defconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout f44f1e7da7c8e3f4575d5d61c4df978496903fcc # save the attached .config to linux build tree make ARCH=um SUBARCH=x86_64
All warnings (new ones prefixed by >>):
arch/um/os-Linux/skas/process.c: In function 'start_idle_thread':
>> arch/um/os-Linux/skas/process.c:579:1: warning: control reaches end of
>> non-void function [-Wreturn-type]
}
^
vim +579 arch/um/os-Linux/skas/process.c
abaf6977 Gennady Sharapov 2006-01-18 563 case INIT_JMP_CALLBACK:
abaf6977 Gennady Sharapov 2006-01-18 564 (*cb_proc)(cb_arg);
77f6af77 Jeff Dike 2007-05-06 565 longjmp(*cb_back, 1);
abaf6977 Gennady Sharapov 2006-01-18 566 break;
abaf6977 Gennady Sharapov 2006-01-18 567 case INIT_JMP_HALT:
abaf6977 Gennady Sharapov 2006-01-18 568 kmalloc_ok = 0;
ba180fd4 Jeff Dike 2007-10-16 569 return 0;
abaf6977 Gennady Sharapov 2006-01-18 570 case INIT_JMP_REBOOT:
abaf6977 Gennady Sharapov 2006-01-18 571 kmalloc_ok = 0;
ba180fd4 Jeff Dike 2007-10-16 572 return 1;
abaf6977 Gennady Sharapov 2006-01-18 573 default:
3e6f2ac4 Jeff Dike 2008-02-04 574 printk(UM_KERN_ERR "Bad
sigsetjmp return in "
3e6f2ac4 Jeff Dike 2008-02-04 575
"start_idle_thread - %d\n", n);
3e6f2ac4 Jeff Dike 2008-02-04 576 fatal_sigsegv();
abaf6977 Gennady Sharapov 2006-01-18 577 }
77f6af77 Jeff Dike 2007-05-06 578 longjmp(*switch_buf, 1);
abaf6977 Gennady Sharapov 2006-01-18 @579 }
abaf6977 Gennady Sharapov 2006-01-18 580
abaf6977 Gennady Sharapov 2006-01-18 581 void initial_thread_cb_skas(void
(*proc)(void *), void *arg)
abaf6977 Gennady Sharapov 2006-01-18 582 {
ad28e029 Jeff Dike 2006-04-18 583 jmp_buf here;
abaf6977 Gennady Sharapov 2006-01-18 584
abaf6977 Gennady Sharapov 2006-01-18 585 cb_proc = proc;
abaf6977 Gennady Sharapov 2006-01-18 586 cb_arg = arg;
abaf6977 Gennady Sharapov 2006-01-18 587 cb_back = &here;
:::::: The code at line 579 was first introduced by commit
:::::: abaf69773d8dda98b917d94c07757f6520da7bec [PATCH] uml: move
libc-dependent skas process handling
:::::: TO: Gennady Sharapov <gennady.v.shara...@intel.com>
:::::: CC: Linus Torvalds <torva...@g5.osdl.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
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