1 /* Callback interface for libthread_db, functions users must define. 2 Copyright (C) 1999-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #ifndef _PROC_SERVICE_H 20 #define _PROC_SERVICE_H 1 21 22 /* The definitions in this file must correspond to those in the debugger. */ 23 #include <sys/procfs.h> 24 25 __BEGIN_DECLS 26 27 /* Functions in this interface return one of these status codes. */ 28 typedef enum 29 { 30 PS_OK, /* Generic "call succeeded". */ 31 PS_ERR, /* Generic error. */ 32 PS_BADPID, /* Bad process handle. */ 33 PS_BADLID, /* Bad LWP identifier. */ 34 PS_BADADDR, /* Bad address. */ 35 PS_NOSYM, /* Could not find given symbol. */ 36 PS_NOFREGS /* FPU register set not available for given LWP. */ 37 } ps_err_e; 38 39 40 /* This type is opaque in this interface. 41 It's defined by the user of libthread_db. */ 42 struct ps_prochandle; 43 44 45 /* Read or write process memory at the given address. */ 46 extern ps_err_e ps_pdread (struct ps_prochandle *, 47 psaddr_t, void *, size_t); 48 extern ps_err_e ps_pdwrite (struct ps_prochandle *, 49 psaddr_t, const void *, size_t); 50 extern ps_err_e ps_ptread (struct ps_prochandle *, 51 psaddr_t, void *, size_t); 52 extern ps_err_e ps_ptwrite (struct ps_prochandle *, 53 psaddr_t, const void *, size_t); 54 55 56 /* Get and set the given LWP's general or FPU register set. */ 57 extern ps_err_e ps_lgetregs (struct ps_prochandle *, 58 lwpid_t, prgregset_t); 59 extern ps_err_e ps_lsetregs (struct ps_prochandle *, 60 lwpid_t, const prgregset_t); 61 extern ps_err_e ps_lgetfpregs (struct ps_prochandle *, 62 lwpid_t, prfpregset_t *); 63 extern ps_err_e ps_lsetfpregs (struct ps_prochandle *, 64 lwpid_t, const prfpregset_t *); 65 66 /* Return the PID of the process. */ 67 extern pid_t ps_getpid (struct ps_prochandle *); 68 69 /* Fetch the special per-thread address associated with the given LWP. 70 This call is only used on a few platforms (most use a normal register). 71 The meaning of the `int' parameter is machine-dependent. */ 72 extern ps_err_e ps_get_thread_area (struct ps_prochandle *, 73 lwpid_t, int, psaddr_t *); 74 75 76 /* Look up the named symbol in the named DSO in the symbol tables 77 associated with the process being debugged, filling in *SYM_ADDR 78 with the corresponding run-time address. */ 79 extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *, 80 const char *object_name, 81 const char *sym_name, 82 psaddr_t *sym_addr); 83 84 85 /* Stop or continue the entire process. */ 86 extern ps_err_e ps_pstop (struct ps_prochandle *); 87 extern ps_err_e ps_pcontinue (struct ps_prochandle *); 88 89 /* Stop or continue the given LWP alone. */ 90 extern ps_err_e ps_lstop (struct ps_prochandle *, lwpid_t); 91 extern ps_err_e ps_lcontinue (struct ps_prochandle *, lwpid_t); 92 93 __END_DECLS 94 95 #endif /* proc_service.h */ 96