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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-10-06 03:59:22 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-10-06 03:59:22 -0400 |
| commit | c8d430db8eec7d4fd13a6bea27b7086a54eda6da (patch) | |
| tree | 3c9b35bc9372232183e745cc2a03995a8d053ff6 /tools/include/nolibc/compiler.h | |
| parent | 2a5fe5a01668e831af1de3951718fbf88b9a9b9c (diff) | |
| parent | a1d402abf8e3ff1d821e88993fc5331784fac0da (diff) | |
Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.12, take #1
- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail
- Make sure that the host's vector length is at capped by a value
common to all CPUs
- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken
- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly
Diffstat (limited to 'tools/include/nolibc/compiler.h')
| -rw-r--r-- | tools/include/nolibc/compiler.h | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h index beddc3665d690..9bc6a706a3323 100644 --- a/tools/include/nolibc/compiler.h +++ b/tools/include/nolibc/compiler.h @@ -6,20 +6,30 @@ #ifndef _NOLIBC_COMPILER_H #define _NOLIBC_COMPILER_H +#if defined(__has_attribute) +# define __nolibc_has_attribute(attr) __has_attribute(attr) +#else +# define __nolibc_has_attribute(attr) 0 +#endif + +#if __nolibc_has_attribute(naked) +# define __nolibc_entrypoint __attribute__((naked)) +# define __nolibc_entrypoint_epilogue() +#else +# define __nolibc_entrypoint __attribute__((optimize("Os", "omit-frame-pointer"))) +# define __nolibc_entrypoint_epilogue() __builtin_unreachable() +#endif /* __nolibc_has_attribute(naked) */ + #if defined(__SSP__) || defined(__SSP_STRONG__) || defined(__SSP_ALL__) || defined(__SSP_EXPLICIT__) #define _NOLIBC_STACKPROTECTOR #endif /* defined(__SSP__) ... */ -#if defined(__has_attribute) -# if __has_attribute(no_stack_protector) -# define __no_stack_protector __attribute__((no_stack_protector)) -# else -# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector"))) -# endif +#if __nolibc_has_attribute(no_stack_protector) +# define __no_stack_protector __attribute__((no_stack_protector)) #else # define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector"))) -#endif /* defined(__has_attribute) */ +#endif /* __nolibc_has_attribute(no_stack_protector) */ #endif /* _NOLIBC_COMPILER_H */ |