1 // SPDX-License-Identifier: GPL-2.0
2 #include <sys/ucontext.h>
3 #define __FRAME_OFFSETS
4 #include <asm/ptrace.h>
5 #include <sysdep/ptrace.h>
7 void get_regs_from_mc(struct uml_pt_regs
*regs
, mcontext_t
*mc
)
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
);
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
);
29 regs
->gp
[CS
/ sizeof(unsigned long)] &= 0xffff;
30 regs
->gp
[CS
/ sizeof(unsigned long)] |= 3;