47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
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#ifndef __ASM_LINKAGE_H
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#define __ASM_LINKAGE_H
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#ifdef __ASSEMBLY__
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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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