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Bug 49209 - [X86] support for -mstack-protector-guard-symbol=
Summary: [X86] support for -mstack-protector-guard-symbol=
Status: NEW
Alias: None
Product: clang
Classification: Unclassified
Component: -New Bugs (show other bugs)
Version: trunk
Hardware: PC All
: P enhancement
Assignee: Unassigned Clang Bugs
URL:
Keywords:
Depends on:
Blocks: 4068
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Reported: 2021-02-16 10:46 PST by Nick Desaulniers
Modified: 2021-05-17 12:00 PDT (History)
6 users (show)

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Description Nick Desaulniers 2021-02-16 10:46:59 PST 
via https://lore.kernel.org/lkml/c0ff7dba14041c7e5d1cae5d4df052f03759bef3.1613243844.git.luto@kernel.org/, the Linux kernel is looking to use the pair of flags:

-mstack-protector-guard-reg=fs -mstack-protector-guard-symbol=__stack_chk_guard

for 32b x86 kernels.  It seems that clang does not yet support

-mstack-protector-guard-symbol=__stack_chk_guard
Comment 1 Nick Desaulniers 2021-05-17 12:00:20 PDT 
See also: https://bugs.llvm.org/show_bug.cgi?id=47341.