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#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H
#ifdef __ASSEMBLY__
#include <asm/assembler.h>
#endif
#define __ALIGN .align 2
#define __ALIGN_STR ".align 2"
/*
* When using in-kernel BTI we need to ensure that PCS-conformant
* assembly functions have suitable annotations. Override
* SYM_FUNC_START to insert a BTI landing pad at the start of
* everything, the override is done unconditionally so we're more
* likely to notice any drift from the overridden definitions.
*/
#define SYM_FUNC_START(name) \
SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN) \
bti c ;
#define SYM_FUNC_START_NOALIGN(name) \
SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE) \
bti c ;
#define SYM_FUNC_START_LOCAL(name) \
SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN) \
bti c ;
#define SYM_FUNC_START_LOCAL_NOALIGN(name) \
SYM_START(name, SYM_L_LOCAL, SYM_A_NONE) \
bti c ;
#define SYM_FUNC_START_WEAK(name) \
SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN) \
bti c ;
#define SYM_FUNC_START_WEAK_NOALIGN(name) \
SYM_START(name, SYM_L_WEAK, SYM_A_NONE) \
bti c ;
/*
* Annotate a function as position independent, i.e., safe to be called before
* the kernel virtual mapping is activated.
*/
#define SYM_FUNC_START_PI(x) \
SYM_FUNC_START_ALIAS(__pi_##x); \
SYM_FUNC_START(x)
#define SYM_FUNC_START_WEAK_PI(x) \
SYM_FUNC_START_ALIAS(__pi_##x); \
SYM_FUNC_START_WEAK(x)
#define SYM_FUNC_START_WEAK_ALIAS_PI(x) \
SYM_FUNC_START_ALIAS(__pi_##x); \
SYM_START(x, SYM_L_WEAK, SYM_A_ALIGN)
#define SYM_FUNC_END_PI(x) \
SYM_FUNC_END(x); \
SYM_FUNC_END_ALIAS(__pi_##x)
#define SYM_FUNC_END_ALIAS_PI(x) \
SYM_FUNC_END_ALIAS(x); \
SYM_FUNC_END_ALIAS(__pi_##x)
#endif
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