1#include <sys/ucontext.h>
2#define __FRAME_OFFSETS
3#include <asm/ptrace.h>
4#include <sysdep/ptrace.h>
5
6void 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}
32