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https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/
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287d163322
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize now on the __ASSEMBLER__ macro that is provided by the compilers. This is a mostly mechanical patch (done with a simple "sed -i" statement), except for the following files where comments with mis-spelled macros were tweaked manually: arch/arm64/include/asm/stacktrace/frame.h arch/arm64/include/asm/kvm_ptrauth.h arch/arm64/include/asm/debug-monitors.h arch/arm64/include/asm/esr.h arch/arm64/include/asm/scs.h arch/arm64/include/asm/memory.h Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
#ifndef __ASM_LINKAGE_H
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#define __ASM_LINKAGE_H
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#ifdef __ASSEMBLER__
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#include <asm/assembler.h>
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#endif
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#define __ALIGN .balign CONFIG_FUNCTION_ALIGNMENT
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#define __ALIGN_STR ".balign " #CONFIG_FUNCTION_ALIGNMENT
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/*
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* When using in-kernel BTI we need to ensure that PCS-conformant
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* assembly functions have suitable annotations. Override
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* SYM_FUNC_START to insert a BTI landing pad at the start of
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* everything, the override is done unconditionally so we're more
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* likely to notice any drift from the overridden definitions.
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*/
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#define SYM_FUNC_START(name) \
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SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN) \
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bti c ;
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#define SYM_FUNC_START_NOALIGN(name) \
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SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE) \
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bti c ;
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#define SYM_FUNC_START_LOCAL(name) \
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SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN) \
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bti c ;
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#define SYM_FUNC_START_LOCAL_NOALIGN(name) \
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SYM_START(name, SYM_L_LOCAL, SYM_A_NONE) \
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bti c ;
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#define SYM_FUNC_START_WEAK(name) \
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SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN) \
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bti c ;
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#define SYM_FUNC_START_WEAK_NOALIGN(name) \
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SYM_START(name, SYM_L_WEAK, SYM_A_NONE) \
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bti c ;
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#define SYM_TYPED_FUNC_START(name) \
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SYM_TYPED_START(name, SYM_L_GLOBAL, SYM_A_ALIGN) \
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bti c ;
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#endif
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