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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
ab1c0cc7 AV |
2 | #include <sys/ucontext.h> |
3 | #define __FRAME_OFFSETS | |
4 | #include <asm/ptrace.h> | |
5 | #include <sysdep/ptrace.h> | |
6 | ||
7 | void get_regs_from_mc(struct uml_pt_regs *regs, mcontext_t *mc) | |
8 | { | |
9 | #ifdef __i386__ | |
10 | #define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y] | |
11 | #define COPY(X) regs->gp[X] = mc->gregs[REG_##X] | |
12 | #define COPY_SEG(X) regs->gp[X] = mc->gregs[REG_##X] & 0xffff; | |
13 | #define COPY_SEG_CPL3(X) regs->gp[X] = (mc->gregs[REG_##X] & 0xffff) | 3; | |
14 | COPY_SEG(GS); COPY_SEG(FS); COPY_SEG(ES); COPY_SEG(DS); | |
15 | COPY(EDI); COPY(ESI); COPY(EBP); | |
16 | COPY2(UESP, ESP); /* sic */ | |
17 | COPY(EBX); COPY(EDX); COPY(ECX); COPY(EAX); | |
18 | COPY(EIP); COPY_SEG_CPL3(CS); COPY(EFL); COPY_SEG_CPL3(SS); | |
19 | #else | |
20 | #define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y] | |
21 | #define COPY(X) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##X] | |
22 | COPY(R8); COPY(R9); COPY(R10); COPY(R11); | |
23 | COPY(R12); COPY(R13); COPY(R14); COPY(R15); | |
24 | COPY(RDI); COPY(RSI); COPY(RBP); COPY(RBX); | |
25 | COPY(RDX); COPY(RAX); COPY(RCX); COPY(RSP); | |
26 | COPY(RIP); | |
27 | COPY2(EFLAGS, EFL); | |
28 | COPY2(CS, CSGSFS); | |
29 | regs->gp[CS / sizeof(unsigned long)] &= 0xffff; | |
30 | regs->gp[CS / sizeof(unsigned long)] |= 3; | |
31 | #endif | |
32 | } |