9ffc6724a3
This will address below -Wmissing-prototypes warnings: arch/um/kernel/mem.c:202:8: warning: no previous prototype for ‘pgd_alloc’ [-Wmissing-prototypes] arch/um/kernel/mem.c:215:7: warning: no previous prototype for ‘uml_kmalloc’ [-Wmissing-prototypes] arch/um/kernel/process.c:207:6: warning: no previous prototype for ‘arch_cpu_idle’ [-Wmissing-prototypes] arch/um/kernel/process.c:328:15: warning: no previous prototype for ‘arch_align_stack’ [-Wmissing-prototypes] arch/um/kernel/reboot.c:45:6: warning: no previous prototype for ‘machine_restart’ [-Wmissing-prototypes] arch/um/kernel/reboot.c:51:6: warning: no previous prototype for ‘machine_power_off’ [-Wmissing-prototypes] arch/um/kernel/reboot.c:57:6: warning: no previous prototype for ‘machine_halt’ [-Wmissing-prototypes] arch/um/kernel/skas/mmu.c:17:5: warning: no previous prototype for ‘init_new_context’ [-Wmissing-prototypes] arch/um/kernel/skas/mmu.c:60:6: warning: no previous prototype for ‘destroy_context’ [-Wmissing-prototypes] arch/um/kernel/skas/process.c:36:12: warning: no previous prototype for ‘start_uml’ [-Wmissing-prototypes] arch/um/kernel/time.c:807:15: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes] arch/um/kernel/tlb.c:594:6: warning: no previous prototype for ‘force_flush_all’ [-Wmissing-prototypes] arch/x86/um/bugs_32.c:22:6: warning: no previous prototype for ‘arch_check_bugs’ [-Wmissing-prototypes] arch/x86/um/bugs_32.c:44:6: warning: no previous prototype for ‘arch_examine_signal’ [-Wmissing-prototypes] arch/x86/um/bugs_64.c:9:6: warning: no previous prototype for ‘arch_check_bugs’ [-Wmissing-prototypes] arch/x86/um/bugs_64.c:13:6: warning: no previous prototype for ‘arch_examine_signal’ [-Wmissing-prototypes] arch/x86/um/elfcore.c:10:12: warning: no previous prototype for ‘elf_core_extra_phdrs’ [-Wmissing-prototypes] arch/x86/um/elfcore.c:15:5: warning: no previous prototype for ‘elf_core_write_extra_phdrs’ [-Wmissing-prototypes] arch/x86/um/elfcore.c:42:5: warning: no previous prototype for ‘elf_core_write_extra_data’ [-Wmissing-prototypes] arch/x86/um/elfcore.c:63:8: warning: no previous prototype for ‘elf_core_extra_data_size’ [-Wmissing-prototypes] arch/x86/um/fault.c:18:5: warning: no previous prototype for ‘arch_fixup’ [-Wmissing-prototypes] arch/x86/um/os-Linux/mcontext.c:7:6: warning: no previous prototype for ‘get_regs_from_mc’ [-Wmissing-prototypes] arch/x86/um/os-Linux/tls.c:22:6: warning: no previous prototype for ‘check_host_supports_tls’ [-Wmissing-prototypes] Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com> Signed-off-by: Richard Weinberger <richard@nod.at>
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <sys/ucontext.h>
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#define __FRAME_OFFSETS
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#include <asm/ptrace.h>
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#include <sysdep/ptrace.h>
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#include <sysdep/mcontext.h>
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void get_regs_from_mc(struct uml_pt_regs *regs, mcontext_t *mc)
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{
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#ifdef __i386__
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#define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y]
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#define COPY(X) regs->gp[X] = mc->gregs[REG_##X]
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#define COPY_SEG(X) regs->gp[X] = mc->gregs[REG_##X] & 0xffff;
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#define COPY_SEG_CPL3(X) regs->gp[X] = (mc->gregs[REG_##X] & 0xffff) | 3;
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COPY_SEG(GS); COPY_SEG(FS); COPY_SEG(ES); COPY_SEG(DS);
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COPY(EDI); COPY(ESI); COPY(EBP);
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COPY2(UESP, ESP); /* sic */
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COPY(EBX); COPY(EDX); COPY(ECX); COPY(EAX);
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COPY(EIP); COPY_SEG_CPL3(CS); COPY(EFL); COPY_SEG_CPL3(SS);
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#else
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#define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y]
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#define COPY(X) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##X]
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COPY(R8); COPY(R9); COPY(R10); COPY(R11);
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COPY(R12); COPY(R13); COPY(R14); COPY(R15);
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COPY(RDI); COPY(RSI); COPY(RBP); COPY(RBX);
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COPY(RDX); COPY(RAX); COPY(RCX); COPY(RSP);
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COPY(RIP);
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COPY2(EFLAGS, EFL);
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COPY2(CS, CSGSFS);
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regs->gp[CS / sizeof(unsigned long)] &= 0xffff;
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regs->gp[CS / sizeof(unsigned long)] |= 3;
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#endif
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}
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