mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-18 09:28:36 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/*
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* Copyright (C) 2004 PathScale, Inc
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* Licensed under the GPL
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*/
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#include <errno.h>
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#include <string.h>
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#include "ptrace_user.h"
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#include "uml-config.h"
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#include "skas_ptregs.h"
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#include "registers.h"
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#include "user.h"
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/* These are set once at boot time and not changed thereafter */
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static unsigned long exec_regs[HOST_FRAME_SIZE];
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static unsigned long exec_fp_regs[HOST_FP_SIZE];
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void init_thread_registers(union uml_pt_regs *to)
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{
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memcpy(to->skas.regs, exec_regs, sizeof(to->skas.regs));
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memcpy(to->skas.fp, exec_fp_regs, sizeof(to->skas.fp));
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}
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static int move_registers(int pid, int int_op, int fp_op,
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union uml_pt_regs *regs)
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{
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if(ptrace(int_op, pid, 0, regs->skas.regs) < 0)
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return(-errno);
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if(ptrace(fp_op, pid, 0, regs->skas.fp) < 0)
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return(-errno);
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return(0);
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}
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void save_registers(int pid, union uml_pt_regs *regs)
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{
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int err;
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err = move_registers(pid, PTRACE_GETREGS, PTRACE_GETFPREGS, regs);
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if(err)
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panic("save_registers - saving registers failed, errno = %d\n",
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-err);
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}
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void restore_registers(int pid, union uml_pt_regs *regs)
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{
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int err;
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err = move_registers(pid, PTRACE_SETREGS, PTRACE_SETFPREGS, regs);
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if(err)
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panic("restore_registers - saving registers failed, "
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"errno = %d\n", -err);
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}
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void init_registers(int pid)
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{
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int err;
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err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs);
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if(err)
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panic("check_ptrace : PTRACE_GETREGS failed, errno = %d",
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err);
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err = ptrace(PTRACE_GETFPREGS, pid, 0, exec_fp_regs);
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if(err)
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panic("check_ptrace : PTRACE_GETFPREGS failed, errno = %d",
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err);
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}
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/*
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* Overrides for Emacs so that we follow Linus's tabbing style.
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* Emacs will notice this stuff at the end of the file and automatically
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* adjust the settings for this buffer only. This must remain at the end
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* of the file.
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* ---------------------------------------------------------------------------
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* Local variables:
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* c-file-style: "linux"
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* End:
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*/
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