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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2004 PathScale, Inc
* Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
*/
#include <errno.h>
#include <string.h>
#include <sys/ptrace.h>
#include <sysdep/ptrace.h>
#include <sysdep/ptrace_user.h>
#include <registers.h>
#include <stdlib.h>
/* This is set once at boot time and not changed thereafter */
static unsigned long exec_regs[MAX_REG_NR];
static unsigned long *exec_fp_regs;
int init_pid_registers(int pid)
{
int err;
err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs);
if (err < 0)
return -errno;
err = arch_init_registers(pid);
if (err < 0)
return err;
exec_fp_regs = malloc(host_fp_size);
get_fp_registers(pid, exec_fp_regs);
return 0;
}
void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
{
memcpy(regs, exec_regs, sizeof(exec_regs));
if (fp_regs)
memcpy(fp_regs, exec_fp_regs, host_fp_size);
}
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