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um: take arch/um/sys-x86 to arch/x86/um

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Al Viro
2011-08-18 20:06:39 +01:00
committed by Richard Weinberger
parent 7bbe7204e9
commit 5c48b108ec
93 changed files with 24 additions and 25 deletions
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31
arch/x86/um/os-Linux/mcontext.c Normal file
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@@ -0,0 +1,31 @@
#include <sys/ucontext.h>
#define __FRAME_OFFSETS
#include <asm/ptrace.h>
#include <sysdep/ptrace.h>
void get_regs_from_mc(struct uml_pt_regs *regs, mcontext_t *mc)
{
#ifdef __i386__
#define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y]
#define COPY(X) regs->gp[X] = mc->gregs[REG_##X]
#define COPY_SEG(X) regs->gp[X] = mc->gregs[REG_##X] & 0xffff;
#define COPY_SEG_CPL3(X) regs->gp[X] = (mc->gregs[REG_##X] & 0xffff) | 3;
COPY_SEG(GS); COPY_SEG(FS); COPY_SEG(ES); COPY_SEG(DS);
COPY(EDI); COPY(ESI); COPY(EBP);
COPY2(UESP, ESP); /* sic */
COPY(EBX); COPY(EDX); COPY(ECX); COPY(EAX);
COPY(EIP); COPY_SEG_CPL3(CS); COPY(EFL); COPY_SEG_CPL3(SS);
#else
#define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y]
#define COPY(X) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##X]
COPY(R8); COPY(R9); COPY(R10); COPY(R11);
COPY(R12); COPY(R13); COPY(R14); COPY(R15);
COPY(RDI); COPY(RSI); COPY(RBP); COPY(RBX);
COPY(RDX); COPY(RAX); COPY(RCX); COPY(RSP);
COPY(RIP);
COPY2(EFLAGS, EFL);
COPY2(CS, CSGSFS);
regs->gp[CS / sizeof(unsigned long)] &= 0xffff;
regs->gp[CS / sizeof(unsigned long)] |= 3;
#endif
}