Bug 70951
| Summary: | Build error due -fstack-protector-strong not supported by compiler | ||
|---|---|---|---|
| Product: | Other | Reporter: | Juan Ledesma (jueleto) |
| Component: | Other | Assignee: | other_other |
| Status: | RESOLVED WILL_NOT_FIX | ||
| Severity: | normal | CC: | alan, pietrushnic |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 3.14-rc3 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | defconfig that triggered the build error | ||
According to https://lkml.org/lkml/2014/2/20/248 this is by design. In CC_STACKPROTECTOR_STRONG help we can read: This feature requires gcc version 4.9 or above, or a distribution gcc with the feature backported ("-fstack-protector-strong"). |
Created attachment 126961 [details] defconfig that triggered the build error When building latest Torvalds tree (HEAD d158fc7f) on a x86_64 machine using the attached defconfig I got the following build error: /home/pc12/linux/arch/x86/Makefile:118: stack-protector enabled but compiler support broken Makefile:614: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler Makefile:614: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler make[1]: No se hace nada para «all». make[1]: No se hace nada para «relocs». CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CC kernel/bounds.s cc1: error: the command line option is not recognized ‘-fstack-protector-strong’ make[1]: *** [kernel/bounds.s] Error 1 make: *** [prepare0] Error 2 Biscecting this break was introduced on commit 19952a92 ("stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architectures") I don't know if this problem is with the above commit or with my compiler (gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3) Best regards,