| Al Viro | ab1c0cc | 2011-08-18 20:05:19 +0100 | [diff] [blame] | 1 | #include <sys/ucontext.h> |
| 2 | #define __FRAME_OFFSETS |
| 3 | #include <asm/ptrace.h> |
| 4 | #include <sysdep/ptrace.h> |
| 5 | |
| 6 | void get_regs_from_mc(struct uml_pt_regs *regs, mcontext_t *mc) |
| 7 | { |
| 8 | #ifdef __i386__ |
| 9 | #define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y] |
| 10 | #define COPY(X) regs->gp[X] = mc->gregs[REG_##X] |
| 11 | #define COPY_SEG(X) regs->gp[X] = mc->gregs[REG_##X] & 0xffff; |
| 12 | #define COPY_SEG_CPL3(X) regs->gp[X] = (mc->gregs[REG_##X] & 0xffff) | 3; |
| 13 | COPY_SEG(GS); COPY_SEG(FS); COPY_SEG(ES); COPY_SEG(DS); |
| 14 | COPY(EDI); COPY(ESI); COPY(EBP); |
| 15 | COPY2(UESP, ESP); /* sic */ |
| 16 | COPY(EBX); COPY(EDX); COPY(ECX); COPY(EAX); |
| 17 | COPY(EIP); COPY_SEG_CPL3(CS); COPY(EFL); COPY_SEG_CPL3(SS); |
| 18 | #else |
| 19 | #define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y] |
| 20 | #define COPY(X) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##X] |
| 21 | COPY(R8); COPY(R9); COPY(R10); COPY(R11); |
| 22 | COPY(R12); COPY(R13); COPY(R14); COPY(R15); |
| 23 | COPY(RDI); COPY(RSI); COPY(RBP); COPY(RBX); |
| 24 | COPY(RDX); COPY(RAX); COPY(RCX); COPY(RSP); |
| 25 | COPY(RIP); |
| 26 | COPY2(EFLAGS, EFL); |
| 27 | COPY2(CS, CSGSFS); |
| 28 | regs->gp[CS / sizeof(unsigned long)] &= 0xffff; |
| 29 | regs->gp[CS / sizeof(unsigned long)] |= 3; |
| 30 | #endif |
| 31 | } |