| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1991-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include <errno.h> |
| 19 | #include <sys/ptrace.h> |
| 20 | #include <sys/types.h> |
| 21 | #include <stdarg.h> |
| 22 | #include <libc-internal.h> |
| 23 | |
| 24 | /* Perform process tracing functions. REQUEST is one of the values |
| 25 | in <sys/ptrace.h>, and determines the action to be taken. |
| 26 | For all requests except PTRACE_TRACEME, PID specifies the process to be |
| 27 | traced. |
| 28 | |
| 29 | PID and the other arguments described above for the various requests should |
| 30 | appear (those that are used for the particular request) as: |
| 31 | pid_t PID, void *ADDR, int DATA, void *ADDR2 |
| 32 | after PID. */ |
| 33 | int |
| 34 | ptrace (enum __ptrace_request request, ...) |
| 35 | { |
| 36 | pid_t pid; |
| 37 | void *addr; |
| 38 | void *addr2; |
| 39 | int data; |
| 40 | va_list ap; |
| 41 | |
| 42 | switch (request) |
| 43 | { |
| 44 | case PTRACE_TRACEME: |
| 45 | case PTRACE_CONT: |
| 46 | case PTRACE_KILL: |
| 47 | case PTRACE_SINGLESTEP: |
| 48 | case PTRACE_ATTACH: |
| 49 | case PTRACE_DETACH: |
| 50 | break; |
| 51 | |
| 52 | case PTRACE_PEEKTEXT: |
| 53 | case PTRACE_PEEKDATA: |
| 54 | case PTRACE_PEEKUSER: |
| 55 | case PTRACE_GETREGS: |
| 56 | case PTRACE_SETREGS: |
| 57 | #ifdef PTRACE_GETFPREGS |
| 58 | case PTRACE_GETFPGEGS: |
| 59 | #endif |
| 60 | case PTRACE_SETFPREGS: |
| 61 | case PTRACE_GETFPAREGS: |
| 62 | case PTRACE_SETFPAREGS: |
| 63 | va_start (ap, request); |
| 64 | pid = va_arg (ap, pid_t); |
| 65 | addr = va_arg (ap, void *); |
| 66 | va_end (ap); |
| 67 | ignore_value (pid); |
| 68 | ignore_value (addr); |
| 69 | break; |
| 70 | |
| 71 | case PTRACE_POKETEXT: |
| 72 | case PTRACE_POKEDATA: |
| 73 | case PTRACE_POKEUSER: |
| 74 | va_start (ap, request); |
| 75 | pid = va_arg (ap, pid_t); |
| 76 | addr = va_arg (ap, void *); |
| 77 | data = va_arg (ap, int); |
| 78 | va_end (ap); |
| 79 | ignore_value (pid); |
| 80 | ignore_value (addr); |
| 81 | ignore_value (data); |
| 82 | break; |
| 83 | |
| 84 | case PTRACE_READDATA: |
| 85 | case PTRACE_WRITEDATA: |
| 86 | case PTRACE_READTEXT: |
| 87 | case PTRACE_WRITETEXT: |
| 88 | va_start (ap, request); |
| 89 | pid = va_arg (ap, pid_t); |
| 90 | addr = va_arg (ap, void *); |
| 91 | data = va_arg (ap, int); |
| 92 | addr2 = va_arg (ap, void *); |
| 93 | va_end (ap); |
| 94 | ignore_value (pid); |
| 95 | ignore_value (addr); |
| 96 | ignore_value (data); |
| 97 | ignore_value (addr2); |
| 98 | break; |
| 99 | |
| 100 | default: |
| 101 | __set_errno (EINVAL); |
| 102 | return -1; |
| 103 | } |
| 104 | |
| 105 | __set_errno (ENOSYS); |
| 106 | return -1; |
| 107 | } |
| 108 | |
| 109 | stub_warning (ptrace) |