32 lines
1.0 KiB
C
32 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_STATIC_CALL_H
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#define _ASM_STATIC_CALL_H
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#define __ARCH_DEFINE_STATIC_CALL_TRAMP(name, target) \
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asm(" .pushsection .static_call.text, \"ax\" \n" \
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" .align 4 \n" \
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" .globl " name " \n" \
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name ": \n" \
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" hint 34 /* BTI C */ \n" \
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" adrp x16, 1f \n" \
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" ldr x16, [x16, :lo12:1f] \n" \
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" br x16 \n" \
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" .type " name ", %function \n" \
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" .size " name ", . - " name " \n" \
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" .popsection \n" \
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" .pushsection .rodata, \"a\" \n" \
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" .align 3 \n" \
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"1: .quad " target " \n" \
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" .popsection \n")
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#define ARCH_DEFINE_STATIC_CALL_TRAMP(name, func) \
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__ARCH_DEFINE_STATIC_CALL_TRAMP(STATIC_CALL_TRAMP_STR(name), #func)
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#define ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name) \
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ARCH_DEFINE_STATIC_CALL_TRAMP(name, __static_call_return0)
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#define ARCH_DEFINE_STATIC_CALL_RET0_TRAMP(name) \
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ARCH_DEFINE_STATIC_CALL_TRAMP(name, __static_call_return0)
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#endif /* _ASM_STATIC_CALL_H */
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