| 1 |
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| 2 | #ifndef _ASM_POWERPC_STATIC_CALL_H
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| 3 | #define _ASM_POWERPC_STATIC_CALL_H
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| 4 |
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| 5 | #define __PPC_SCT(name, inst) \
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| 6 | asm(".pushsection .text, \"ax\" \n" \
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| 7 | ".align 5 \n" \
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| 8 | ".globl " STATIC_CALL_TRAMP_STR(name) " \n" \
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| 9 | STATIC_CALL_TRAMP_STR(name) ": \n" \
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| 10 | inst " \n" \
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| 11 | " lis 12,2f@ha \n" \
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| 12 | " lwz 12,2f@l(12) \n" \
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| 13 | " mtctr 12 \n" \
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| 14 | " bctr \n" \
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| 15 | "1: li 3, 0 \n" \
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| 16 | " blr \n" \
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| 17 | "2: .long 0 \n" \
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| 18 | ".type " STATIC_CALL_TRAMP_STR(name) ", @function \n" \
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| 19 | ".size " STATIC_CALL_TRAMP_STR(name) ", . - " STATIC_CALL_TRAMP_STR(name) " \n" \
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| 20 | ".popsection \n")
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| 21 |
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| 22 | #define PPC_SCT_RET0 20
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| 23 | #define PPC_SCT_DATA 28
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| 24 |
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| 25 | #define ARCH_DEFINE_STATIC_CALL_TRAMP(name, func) __PPC_SCT(name, "b " #func)
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| 26 | #define ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name) __PPC_SCT(name, "blr")
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| 27 | #define ARCH_DEFINE_STATIC_CALL_RET0_TRAMP(name) __PPC_SCT(name, "b .+20")
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| 28 |
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| 29 | #define CALL_INSN_SIZE 4
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| 30 |
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| 31 | #endif
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