Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/*
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* ARM AArch64 sigcode for bsd-user
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*
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* Copyright (c) 2015 Stacey D. Son
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef TARGET_ARCH_SIGTRAMP_H
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#define TARGET_ARCH_SIGTRAMP_H
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/* Compare to ENTRY(sigcode) in arm64/arm64/locore.S */
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static inline abi_long setup_sigtramp(abi_ulong offset, unsigned sigf_uc,
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unsigned sys_sigreturn)
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{
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int i;
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uint32_t sys_exit = TARGET_FREEBSD_NR_exit;
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uint32_t sigtramp_code[] = {
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/* 1 */ 0x910003e0, /* mov x0, sp */
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/* 2 */ 0x91000000 + (sigf_uc << 10), /* add x0, x0, #SIGF_UC */
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/* 3 */ 0xd2800000 + (sys_sigreturn << 5) + 0x8, /* mov x8, #SYS_sigreturn */
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/* 4 */ 0xd4000001, /* svc #0 */
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/* 5 */ 0xd2800028 + (sys_exit << 5) + 0x8, /* mov x8, #SYS_exit */
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/* 6 */ 0xd4000001, /* svc #0 */
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/* 7 */ 0x17fffffc, /* b -4 */
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/* 8 */ sys_sigreturn,
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/* 9 */ sys_exit
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};
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for (i = 0; i < 9; i++) {
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tswap32s(&sigtramp_code[i]);
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}
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return memcpy_to_target(offset, sigtramp_code, TARGET_SZSIGCODE);
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}
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#endif /* TARGET_ARCH_SIGTRAMP_H */
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