2 * Copyright (c) 2010 The FreeBSD Foundation
5 * This software was developed by Rui Paulo under sponsorship from the
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/types.h>
34 #include <sys/ptrace.h>
43 proc_regget(struct proc_handle *phdl, proc_reg_t reg, unsigned long *regvalue)
47 if (phdl->status == PS_DEAD || phdl->status == PS_UNDEAD ||
48 phdl->status == PS_IDLE) {
52 memset(®s, 0, sizeof(regs));
53 if (ptrace(PT_GETREGS, proc_getpid(phdl), (caddr_t)®s, 0) < 0)
57 #if defined(__aarch64__)
59 #elif defined(__amd64__)
60 *regvalue = regs.r_rip;
61 #elif defined(__arm__)
62 *regvalue = regs.r_pc;
63 #elif defined(__i386__)
64 *regvalue = regs.r_eip;
65 #elif defined(__mips__)
66 *regvalue = regs.r_regs[PC];
67 #elif defined(__powerpc__)
69 #elif defined(__riscv__)
70 *regvalue = regs.sepc;
74 #if defined(__aarch64__)
76 #elif defined(__amd64__)
77 *regvalue = regs.r_rsp;
78 #elif defined(__arm__)
79 *regvalue = regs.r_sp;
80 #elif defined(__i386__)
81 *regvalue = regs.r_esp;
82 #elif defined(__mips__)
83 *regvalue = regs.r_regs[SP];
84 #elif defined(__powerpc__)
85 *regvalue = regs.fixreg[1];
86 #elif defined(__riscv__)
91 DPRINTFX("ERROR: no support for reg number %d", reg);
99 proc_regset(struct proc_handle *phdl, proc_reg_t reg, unsigned long regvalue)
103 if (phdl->status == PS_DEAD || phdl->status == PS_UNDEAD ||
104 phdl->status == PS_IDLE) {
108 if (ptrace(PT_GETREGS, proc_getpid(phdl), (caddr_t)®s, 0) < 0)
112 #if defined(__aarch64__)
114 #elif defined(__amd64__)
115 regs.r_rip = regvalue;
116 #elif defined(__arm__)
117 regs.r_pc = regvalue;
118 #elif defined(__i386__)
119 regs.r_eip = regvalue;
120 #elif defined(__mips__)
121 regs.r_regs[PC] = regvalue;
122 #elif defined(__powerpc__)
124 #elif defined(__riscv__)
125 regs.sepc = regvalue;
129 #if defined(__aarch64__)
131 #elif defined(__amd64__)
132 regs.r_rsp = regvalue;
133 #elif defined(__arm__)
134 regs.r_sp = regvalue;
135 #elif defined(__i386__)
136 regs.r_esp = regvalue;
137 #elif defined(__mips__)
138 regs.r_regs[PC] = regvalue;
139 #elif defined(__powerpc__)
140 regs.fixreg[1] = regvalue;
141 #elif defined(__riscv__)
146 DPRINTFX("ERROR: no support for reg number %d", reg);
149 if (ptrace(PT_SETREGS, proc_getpid(phdl), (caddr_t)®s, 0) < 0)