| /* libthread_db helper functions for the remote server for GDB. |
| Copyright (C) 2002-2024 Free Software Foundation, Inc. |
| |
| Contributed by MontaVista Software. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| |
| /* This file is currently tied to GNU/Linux. It should scale well to |
| another libthread_db implementation, with the appropriate gdbserver |
| hooks, but for now this means we can use GNU/Linux's target data. */ |
| |
| #include "linux-low.h" |
| |
| #include "gdb_proc_service.h" |
| |
| typedef struct ps_prochandle *gdb_ps_prochandle_t; |
| typedef void *gdb_ps_read_buf_t; |
| typedef const void *gdb_ps_write_buf_t; |
| typedef size_t gdb_ps_size_t; |
| |
| #ifdef HAVE_LINUX_REGSETS |
| #define HAVE_REGSETS |
| #endif |
| |
| #ifdef HAVE_REGSETS |
| static struct regset_info * |
| gregset_info (void) |
| { |
| int i = 0; |
| const regs_info *regs_info = the_linux_target->get_regs_info (); |
| struct regsets_info *regsets_info = regs_info->regsets_info; |
| |
| while (regsets_info->regsets[i].size != -1) |
| { |
| if (regsets_info->regsets[i].type == GENERAL_REGS) |
| break; |
| i++; |
| } |
| |
| return ®sets_info->regsets[i]; |
| } |
| #endif |
| |
| /* Search for the symbol named NAME within the object named OBJ within |
| the target process PH. If the symbol is found the address of the |
| symbol is stored in SYM_ADDR. */ |
| |
| ps_err_e |
| ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *obj, |
| const char *name, psaddr_t *sym_addr) |
| { |
| CORE_ADDR addr; |
| |
| if (thread_db_look_up_one_symbol (name, &addr) == 0) |
| return PS_NOSYM; |
| |
| *sym_addr = (psaddr_t) (unsigned long) addr; |
| return PS_OK; |
| } |
| |
| /* Read SIZE bytes from the target process PH at address ADDR and copy |
| them into BUF. */ |
| |
| ps_err_e |
| ps_pdread (gdb_ps_prochandle_t ph, psaddr_t addr, |
| gdb_ps_read_buf_t buf, gdb_ps_size_t size) |
| { |
| if (read_inferior_memory ((uintptr_t) addr, (gdb_byte *) buf, size) != 0) |
| return PS_ERR; |
| return PS_OK; |
| } |
| |
| /* Write SIZE bytes from BUF into the target process PH at address ADDR. */ |
| |
| ps_err_e |
| ps_pdwrite (gdb_ps_prochandle_t ph, psaddr_t addr, |
| gdb_ps_write_buf_t buf, gdb_ps_size_t size) |
| { |
| if (target_write_memory ((uintptr_t) addr, (const gdb_byte *) buf, size) |
| != 0) |
| return PS_ERR; |
| return PS_OK; |
| } |
| |
| /* Get the general registers of LWP LWPID within the target process PH |
| and store them in GREGSET. */ |
| |
| ps_err_e |
| ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset) |
| { |
| #ifdef HAVE_REGSETS |
| struct lwp_info *lwp; |
| struct regcache *regcache; |
| |
| lwp = find_lwp_pid (ptid_t (lwpid)); |
| if (lwp == NULL) |
| return PS_ERR; |
| |
| scoped_restore_current_thread restore_thread; |
| switch_to_thread (get_lwp_thread (lwp)); |
| regcache = get_thread_regcache (current_thread, 1); |
| gregset_info ()->fill_function (regcache, gregset); |
| |
| return PS_OK; |
| #else |
| return PS_ERR; |
| #endif |
| } |
| |
| /* Set the general registers of LWP LWPID within the target process PH |
| from GREGSET. */ |
| |
| ps_err_e |
| ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prgregset_t gregset) |
| { |
| /* Unneeded. */ |
| return PS_ERR; |
| } |
| |
| /* Get the floating-point registers of LWP LWPID within the target |
| process PH and store them in FPREGSET. */ |
| |
| ps_err_e |
| ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prfpregset_t *fpregset) |
| { |
| /* Unneeded. */ |
| return PS_ERR; |
| } |
| |
| /* Set the floating-point registers of LWP LWPID within the target |
| process PH from FPREGSET. */ |
| |
| ps_err_e |
| ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prfpregset_t *fpregset) |
| { |
| /* Unneeded. */ |
| return PS_ERR; |
| } |
| |
| /* Return overall process id of the target PH. Special for GNU/Linux |
| -- not used on Solaris. */ |
| |
| pid_t |
| ps_getpid (gdb_ps_prochandle_t ph) |
| { |
| return current_process ()->pid; |
| } |