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proc_regs.c (233402) proc_regs.c (242723)
1/*
2 * Copyright (c) 2010 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Rui Paulo under sponsorship from the
6 * FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without

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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
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
1/*
2 * Copyright (c) 2010 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Rui Paulo under sponsorship from the
6 * FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without

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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
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/lib/libproc/proc_regs.c 233402 2012-03-23 23:07:02Z gonzo $");
31__FBSDID("$FreeBSD: head/lib/libproc/proc_regs.c 242723 2012-11-07 23:45:09Z jhibbits $");
32
33#include <sys/types.h>
34#include <sys/ptrace.h>
35
36#include <err.h>
37#include <stdio.h>
38#include <string.h>
39#include <errno.h>

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55 switch (reg) {
56 case REG_PC:
57#if defined(__amd64__)
58 *regvalue = regs.r_rip;
59#elif defined(__i386__)
60 *regvalue = regs.r_eip;
61#elif defined(__mips__)
62 *regvalue = regs.r_regs[PC];
32
33#include <sys/types.h>
34#include <sys/ptrace.h>
35
36#include <err.h>
37#include <stdio.h>
38#include <string.h>
39#include <errno.h>

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55 switch (reg) {
56 case REG_PC:
57#if defined(__amd64__)
58 *regvalue = regs.r_rip;
59#elif defined(__i386__)
60 *regvalue = regs.r_eip;
61#elif defined(__mips__)
62 *regvalue = regs.r_regs[PC];
63#elif defined(__powerpc__)
64 *regvalue = regs.pc;
63#endif
64 break;
65 case REG_SP:
66#if defined(__amd64__)
67 *regvalue = regs.r_rsp;
68#elif defined(__i386__)
69 *regvalue = regs.r_esp;
70#elif defined(__mips__)
71 *regvalue = regs.r_regs[SP];
65#endif
66 break;
67 case REG_SP:
68#if defined(__amd64__)
69 *regvalue = regs.r_rsp;
70#elif defined(__i386__)
71 *regvalue = regs.r_esp;
72#elif defined(__mips__)
73 *regvalue = regs.r_regs[SP];
74#elif defined(__powerpc__)
75 *regvalue = regs.fixreg[1];
72#endif
73 break;
74 default:
75 warn("ERROR: no support for reg number %d", reg);
76 return (-1);
77 }
78
79 return (0);

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94 switch (reg) {
95 case REG_PC:
96#if defined(__amd64__)
97 regs.r_rip = regvalue;
98#elif defined(__i386__)
99 regs.r_eip = regvalue;
100#elif defined(__mips__)
101 regs.r_regs[PC] = regvalue;
76#endif
77 break;
78 default:
79 warn("ERROR: no support for reg number %d", reg);
80 return (-1);
81 }
82
83 return (0);

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98 switch (reg) {
99 case REG_PC:
100#if defined(__amd64__)
101 regs.r_rip = regvalue;
102#elif defined(__i386__)
103 regs.r_eip = regvalue;
104#elif defined(__mips__)
105 regs.r_regs[PC] = regvalue;
106#elif defined(__powerpc__)
107 regs.pc = regvalue;
102#endif
103 break;
104 case REG_SP:
105#if defined(__amd64__)
106 regs.r_rsp = regvalue;
107#elif defined(__i386__)
108 regs.r_esp = regvalue;
109#elif defined(__mips__)
110 regs.r_regs[PC] = regvalue;
108#endif
109 break;
110 case REG_SP:
111#if defined(__amd64__)
112 regs.r_rsp = regvalue;
113#elif defined(__i386__)
114 regs.r_esp = regvalue;
115#elif defined(__mips__)
116 regs.r_regs[PC] = regvalue;
117#elif defined(__powerpc__)
118 regs.fixreg[1] = regvalue;
111#endif
112 break;
113 default:
114 warn("ERROR: no support for reg number %d", reg);
115 return (-1);
116 }
117 if (ptrace(PT_SETREGS, proc_getpid(phdl), (caddr_t)&regs, 0) < 0)
118 return (-1);
119
120 return (0);
121}
119#endif
120 break;
121 default:
122 warn("ERROR: no support for reg number %d", reg);
123 return (-1);
124 }
125 if (ptrace(PT_SETREGS, proc_getpid(phdl), (caddr_t)&regs, 0) < 0)
126 return (-1);
127
128 return (0);
129}