// SPDX-License-Identifier: GPL-2.0 #include <sys/ucontext.h> #define __FRAME_OFFSETS #include <asm/ptrace.h> #include <sysdep/ptrace.h> void get_regs_from_mc(struct uml_pt_regs *regs, mcontext_t *mc) { #ifdef __i386__ #define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y] #define COPY(X) regs->gp[X] = mc->gregs[REG_##X] #define COPY_SEG(X) regs->gp[X] = mc->gregs[REG_##X] & 0xffff; #define COPY_SEG_CPL3(X) regs->gp[X] = (mc->gregs[REG_##X] & 0xffff) | 3; COPY_SEG(GS); COPY_SEG(FS); COPY_SEG(ES); COPY_SEG(DS); COPY(EDI); COPY(ESI); COPY(EBP); COPY2(UESP, ESP); /* sic */ COPY(EBX); COPY(EDX); COPY(ECX); COPY(EAX); COPY(EIP); COPY_SEG_CPL3(CS); COPY(EFL); COPY_SEG_CPL3(SS); #else #define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y] #define COPY(X) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##X] COPY(R8); COPY(R9); COPY(R10); COPY(R11); COPY(R12); COPY(R13); COPY(R14); COPY(R15); COPY(RDI); COPY(RSI); COPY(RBP); COPY(RBX); COPY(RDX); COPY(RAX); COPY(RCX); COPY(RSP); COPY(RIP); COPY2(EFLAGS, EFL); COPY2(CS, CSGSFS); regs->gp[CS / sizeof(unsigned long)] &= 0xffff; regs->gp[CS / sizeof(unsigned long)] |= 3; #endif }