1*b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 25c48b108SAl Viro #include <sys/ucontext.h> 35c48b108SAl Viro #define __FRAME_OFFSETS 45c48b108SAl Viro #include <asm/ptrace.h> 55c48b108SAl Viro #include <sysdep/ptrace.h> 65c48b108SAl Viro get_regs_from_mc(struct uml_pt_regs * regs,mcontext_t * mc)75c48b108SAl Virovoid get_regs_from_mc(struct uml_pt_regs *regs, mcontext_t *mc) 85c48b108SAl Viro { 95c48b108SAl Viro #ifdef __i386__ 105c48b108SAl Viro #define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y] 115c48b108SAl Viro #define COPY(X) regs->gp[X] = mc->gregs[REG_##X] 125c48b108SAl Viro #define COPY_SEG(X) regs->gp[X] = mc->gregs[REG_##X] & 0xffff; 135c48b108SAl Viro #define COPY_SEG_CPL3(X) regs->gp[X] = (mc->gregs[REG_##X] & 0xffff) | 3; 145c48b108SAl Viro COPY_SEG(GS); COPY_SEG(FS); COPY_SEG(ES); COPY_SEG(DS); 155c48b108SAl Viro COPY(EDI); COPY(ESI); COPY(EBP); 165c48b108SAl Viro COPY2(UESP, ESP); /* sic */ 175c48b108SAl Viro COPY(EBX); COPY(EDX); COPY(ECX); COPY(EAX); 185c48b108SAl Viro COPY(EIP); COPY_SEG_CPL3(CS); COPY(EFL); COPY_SEG_CPL3(SS); 195c48b108SAl Viro #else 205c48b108SAl Viro #define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y] 215c48b108SAl Viro #define COPY(X) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##X] 225c48b108SAl Viro COPY(R8); COPY(R9); COPY(R10); COPY(R11); 235c48b108SAl Viro COPY(R12); COPY(R13); COPY(R14); COPY(R15); 245c48b108SAl Viro COPY(RDI); COPY(RSI); COPY(RBP); COPY(RBX); 255c48b108SAl Viro COPY(RDX); COPY(RAX); COPY(RCX); COPY(RSP); 265c48b108SAl Viro COPY(RIP); 275c48b108SAl Viro COPY2(EFLAGS, EFL); 285c48b108SAl Viro COPY2(CS, CSGSFS); 295c48b108SAl Viro regs->gp[CS / sizeof(unsigned long)] &= 0xffff; 305c48b108SAl Viro regs->gp[CS / sizeof(unsigned long)] |= 3; 315c48b108SAl Viro #endif 325c48b108SAl Viro } 33