| 1 | /* <proc_service.h> replacement for systems that don't have it. |
| 2 | Copyright (C) 2000-2021 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef COMMON_GDB_PROC_SERVICE_H |
| 20 | #define COMMON_GDB_PROC_SERVICE_H |
| 21 | |
| 22 | #include <sys/types.h> |
| 23 | |
| 24 | #ifdef HAVE_PROC_SERVICE_H |
| 25 | |
| 26 | /* glibc's proc_service.h doesn't wrap itself with extern "C". Need |
| 27 | to do it ourselves. */ |
| 28 | EXTERN_C_PUSH |
| 29 | |
| 30 | #include <proc_service.h> |
| 31 | |
| 32 | EXTERN_C_POP |
| 33 | |
| 34 | #else /* HAVE_PROC_SERVICE_H */ |
| 35 | |
| 36 | /* The following fallback definitions have been imported and adjusted |
| 37 | from glibc's proc_service.h */ |
| 38 | |
| 39 | /* Callback interface for libthread_db, functions users must define. |
| 40 | Copyright (C) 1999,2002,2003 Free Software Foundation, Inc. |
| 41 | This file is part of the GNU C Library. |
| 42 | |
| 43 | The GNU C Library is free software; you can redistribute it and/or |
| 44 | modify it under the terms of the GNU Lesser General Public |
| 45 | License as published by the Free Software Foundation; either |
| 46 | version 2.1 of the License, or (at your option) any later version. |
| 47 | |
| 48 | The GNU C Library is distributed in the hope that it will be useful, |
| 49 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 50 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 51 | Lesser General Public License for more details. |
| 52 | |
| 53 | You should have received a copy of the GNU Lesser General Public |
| 54 | License along with the GNU C Library; if not, see |
| 55 | <http://www.gnu.org/licenses/>. */ |
| 56 | |
| 57 | /* The definitions in this file must correspond to those in the debugger. */ |
| 58 | |
| 59 | #ifdef HAVE_SYS_PROCFS_H |
| 60 | #include <sys/procfs.h> |
| 61 | #endif |
| 62 | |
| 63 | /* Not all platforms bring in <linux/elf.h> via <sys/procfs.h>. If |
| 64 | <sys/procfs.h> wasn't enough to find elf_fpregset_t, try the kernel |
| 65 | headers also (but don't if we don't need to). */ |
| 66 | #ifndef HAVE_ELF_FPREGSET_T |
| 67 | # ifdef HAVE_LINUX_ELF_H |
| 68 | # include <linux/elf.h> |
| 69 | # endif |
| 70 | #endif |
| 71 | |
| 72 | EXTERN_C_PUSH |
| 73 | |
| 74 | /* Functions in this interface return one of these status codes. */ |
| 75 | typedef enum |
| 76 | { |
| 77 | PS_OK, /* Generic "call succeeded". */ |
| 78 | PS_ERR, /* Generic error. */ |
| 79 | PS_BADPID, /* Bad process handle. */ |
| 80 | PS_BADLID, /* Bad LWP identifier. */ |
| 81 | PS_BADADDR, /* Bad address. */ |
| 82 | PS_NOSYM, /* Could not find given symbol. */ |
| 83 | PS_NOFREGS /* FPU register set not available for given LWP. */ |
| 84 | } ps_err_e; |
| 85 | |
| 86 | #ifndef HAVE_LWPID_T |
| 87 | typedef unsigned int lwpid_t; |
| 88 | #endif |
| 89 | |
| 90 | #ifndef HAVE_PSADDR_T |
| 91 | typedef void *psaddr_t; |
| 92 | #endif |
| 93 | |
| 94 | #ifndef HAVE_PRGREGSET_T |
| 95 | typedef elf_gregset_t prgregset_t; |
| 96 | #endif |
| 97 | |
| 98 | #ifndef HAVE_PRFPREGSET_T |
| 99 | typedef elf_fpregset_t prfpregset_t; |
| 100 | #endif |
| 101 | |
| 102 | /* This type is opaque in this interface. It's defined by the user of |
| 103 | libthread_db. GDB's version is defined below. */ |
| 104 | struct ps_prochandle; |
| 105 | |
| 106 | |
| 107 | /* Read or write process memory at the given address. */ |
| 108 | extern ps_err_e ps_pdread (struct ps_prochandle *, |
| 109 | psaddr_t, void *, size_t); |
| 110 | extern ps_err_e ps_pdwrite (struct ps_prochandle *, |
| 111 | psaddr_t, const void *, size_t); |
| 112 | extern ps_err_e ps_ptread (struct ps_prochandle *, |
| 113 | psaddr_t, void *, size_t); |
| 114 | extern ps_err_e ps_ptwrite (struct ps_prochandle *, |
| 115 | psaddr_t, const void *, size_t); |
| 116 | |
| 117 | |
| 118 | /* Get and set the given LWP's general or FPU register set. */ |
| 119 | extern ps_err_e ps_lgetregs (struct ps_prochandle *, |
| 120 | lwpid_t, prgregset_t); |
| 121 | extern ps_err_e ps_lsetregs (struct ps_prochandle *, |
| 122 | lwpid_t, const prgregset_t); |
| 123 | extern ps_err_e ps_lgetfpregs (struct ps_prochandle *, |
| 124 | lwpid_t, prfpregset_t *); |
| 125 | extern ps_err_e ps_lsetfpregs (struct ps_prochandle *, |
| 126 | lwpid_t, const prfpregset_t *); |
| 127 | |
| 128 | /* Return the PID of the process. */ |
| 129 | extern pid_t ps_getpid (struct ps_prochandle *); |
| 130 | |
| 131 | /* Fetch the special per-thread address associated with the given LWP. |
| 132 | This call is only used on a few platforms (most use a normal register). |
| 133 | The meaning of the `int' parameter is machine-dependent. */ |
| 134 | extern ps_err_e ps_get_thread_area (struct ps_prochandle *, |
| 135 | lwpid_t, int, psaddr_t *); |
| 136 | |
| 137 | |
| 138 | /* Look up the named symbol in the named DSO in the symbol tables |
| 139 | associated with the process being debugged, filling in *SYM_ADDR |
| 140 | with the corresponding run-time address. */ |
| 141 | extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *, |
| 142 | const char *object_name, |
| 143 | const char *sym_name, |
| 144 | psaddr_t *sym_addr); |
| 145 | |
| 146 | |
| 147 | /* Stop or continue the entire process. */ |
| 148 | extern ps_err_e ps_pstop (struct ps_prochandle *); |
| 149 | extern ps_err_e ps_pcontinue (struct ps_prochandle *); |
| 150 | |
| 151 | /* Stop or continue the given LWP alone. */ |
| 152 | extern ps_err_e ps_lstop (struct ps_prochandle *, lwpid_t); |
| 153 | extern ps_err_e ps_lcontinue (struct ps_prochandle *, lwpid_t); |
| 154 | |
| 155 | /* The following are only defined in/called by Solaris. */ |
| 156 | |
| 157 | /* Get size of extra register set. */ |
| 158 | extern ps_err_e ps_lgetxregsize (struct ps_prochandle *ph, |
| 159 | lwpid_t lwpid, int *xregsize); |
| 160 | /* Get extra register set. */ |
| 161 | extern ps_err_e ps_lgetxregs (struct ps_prochandle *ph, lwpid_t lwpid, |
| 162 | caddr_t xregset); |
| 163 | extern ps_err_e ps_lsetxregs (struct ps_prochandle *ph, lwpid_t lwpid, |
| 164 | caddr_t xregset); |
| 165 | |
| 166 | /* Log a message (sends to gdb_stderr). */ |
| 167 | extern void ps_plog (const char *fmt, ...); |
| 168 | |
| 169 | EXTERN_C_POP |
| 170 | |
| 171 | #endif /* HAVE_PROC_SERVICE_H */ |
| 172 | |
| 173 | /* Make sure we export the needed symbols, in case GDB is built with |
| 174 | -fvisibility=hidden. */ |
| 175 | |
| 176 | #define PS_EXPORT(SYM) \ |
| 177 | __attribute__((visibility ("default"))) typeof (SYM) SYM |
| 178 | |
| 179 | PS_EXPORT (ps_get_thread_area); |
| 180 | PS_EXPORT (ps_getpid); |
| 181 | PS_EXPORT (ps_lcontinue); |
| 182 | PS_EXPORT (ps_lgetfpregs); |
| 183 | PS_EXPORT (ps_lgetregs); |
| 184 | PS_EXPORT (ps_lsetfpregs); |
| 185 | PS_EXPORT (ps_lsetregs); |
| 186 | PS_EXPORT (ps_lstop); |
| 187 | PS_EXPORT (ps_pcontinue); |
| 188 | PS_EXPORT (ps_pdread); |
| 189 | PS_EXPORT (ps_pdwrite); |
| 190 | PS_EXPORT (ps_pglobal_lookup); |
| 191 | PS_EXPORT (ps_pstop); |
| 192 | PS_EXPORT (ps_ptread); |
| 193 | PS_EXPORT (ps_ptwrite); |
| 194 | |
| 195 | #ifdef __sun__ |
| 196 | PS_EXPORT (ps_lgetxregs); |
| 197 | PS_EXPORT (ps_lgetxregsize); |
| 198 | PS_EXPORT (ps_lsetxregs); |
| 199 | PS_EXPORT (ps_plog); |
| 200 | #endif |
| 201 | |
| 202 | #endif /* COMMON_GDB_PROC_SERVICE_H */ |