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SubjectRe: Linux 5.8-rc1
* Am So., 14. Juni 2020 um 22:44 Uhr schrieb Linus Torvalds
<torvalds@linux-foundation.org>:

Hello,

> So I didn't really expect this, but 5.8 looks to be one of our biggest
> releases of all time.
>

I hit a compiler error caused by e4160b2e4b02377c67f8ecd05786811598f39acd.

x86/purgatory: Fail the build if purgatory.ro has missing symbols

Having CONFIG_STACKPROTECTOR* & CONFIG_KEXEC_FILE enabled always
results in a linking error like this:

LD arch/x86/purgatory/purgatory.chk
ld: arch/x86/purgatory/purgatory.ro: in function `verify_sha256_digest':
purgatory.c:(.text+0x108): undefined reference to `__stack_chk_fail'
ld: arch/x86/purgatory/purgatory.ro: in function `sha256_transform':
sha256.c:(.text+0x1c74): undefined reference to `__stack_chk_fail'
ld: arch/x86/purgatory/purgatory.ro: in function `__sha256_final':
sha256.c:(.text+0x1e65): undefined reference to `__stack_chk_fail'
ld: arch/x86/purgatory/purgatory.ro: in function `_kstrtoull':
string.c:(.text+0x2107): undefined reference to `__stack_chk_fail'

I didn't look closer at that but from the error, it seems to be,
some missing -fstack-protector* vs -fno-stack-protector* checks
somewhere.


Best Regards,

Gabriel C

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