From 071ea11e85eb9d529cc5eb3d35f6247466a21b99 Mon Sep 17 00:00:00 2001 From: Stan Shebs Date: Fri, 16 Apr 1999 01:34:07 +0000 Subject: Initial creation of sourceware repository --- gdb/target.c | 2630 ---------------------------------------------------------- 1 file changed, 2630 deletions(-) delete mode 100644 gdb/target.c (limited to 'gdb/target.c') diff --git a/gdb/target.c b/gdb/target.c deleted file mode 100644 index 4d9f3e9..0000000 --- a/gdb/target.c +++ /dev/null @@ -1,2630 +0,0 @@ -/* Select target systems and architectures at runtime for GDB. - Copyright 1990, 1992, 1993, 1994, 1995, 1998 Free Software Foundation, Inc. - Contributed by Cygnus Support. - -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 2 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, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "defs.h" -#include -#include -#include "gdb_string.h" -#include "target.h" -#include "gdbcmd.h" -#include "symtab.h" -#include "inferior.h" -#include "bfd.h" -#include "symfile.h" -#include "objfiles.h" -#include "wait.h" -#include - -extern int errno; - -static void -target_info PARAMS ((char *, int)); - -static void -cleanup_target PARAMS ((struct target_ops *)); - -static void -maybe_kill_then_create_inferior PARAMS ((char *, char *, char **)); - -static void -default_clone_and_follow_inferior PARAMS ((int, int *)); - -static void -maybe_kill_then_attach PARAMS ((char *, int)); - -static void -kill_or_be_killed PARAMS ((int)); - -static void -default_terminal_info PARAMS ((char *, int)); - -static int -nosymbol PARAMS ((char *, CORE_ADDR *)); - -static void -tcomplain PARAMS ((void)); - -static int -nomemory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *)); - -static int -return_zero PARAMS ((void)); - -static int -return_one PARAMS ((void)); - -void -target_ignore PARAMS ((void)); - -static void -target_command PARAMS ((char *, int)); - -static struct target_ops * -find_default_run_target PARAMS ((char *)); - -static void -update_current_target PARAMS ((void)); - -/* Transfer LEN bytes between target address MEMADDR and GDB address MYADDR. - Returns 0 for success, errno code for failure (which includes partial - transfers--if you want a more useful response to partial transfers, try - target_read_memory_partial). */ - -static int -target_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len, - int write, asection *bfd_section)); - -static void -debug_to_open PARAMS ((char *, int)); - -static void -debug_to_close PARAMS ((int)); - -static void -debug_to_attach PARAMS ((char *, int)); - -static void -debug_to_detach PARAMS ((char *, int)); - -static void -debug_to_resume PARAMS ((int, int, enum target_signal)); - -static int -debug_to_wait PARAMS ((int, struct target_waitstatus *)); - -static void -debug_to_fetch_registers PARAMS ((int)); - -static void -debug_to_store_registers PARAMS ((int)); - -static void -debug_to_prepare_to_store PARAMS ((void)); - -static int -debug_to_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *)); - -static void -debug_to_files_info PARAMS ((struct target_ops *)); - -static int -debug_to_insert_breakpoint PARAMS ((CORE_ADDR, char *)); - -static int -debug_to_remove_breakpoint PARAMS ((CORE_ADDR, char *)); - -static void -debug_to_terminal_init PARAMS ((void)); - -static void -debug_to_terminal_inferior PARAMS ((void)); - -static void -debug_to_terminal_ours_for_output PARAMS ((void)); - -static void -debug_to_terminal_ours PARAMS ((void)); - -static void -debug_to_terminal_info PARAMS ((char *, int)); - -static void -debug_to_kill PARAMS ((void)); - -static void -debug_to_load PARAMS ((char *, int)); - -static int -debug_to_lookup_symbol PARAMS ((char *, CORE_ADDR *)); - -static void -debug_to_create_inferior PARAMS ((char *, char *, char **)); - -static void -debug_to_mourn_inferior PARAMS ((void)); - -static int -debug_to_can_run PARAMS ((void)); - -static void -debug_to_notice_signals PARAMS ((int)); - -static int -debug_to_thread_alive PARAMS ((int)); - -static void -debug_to_stop PARAMS ((void)); - -static int -debug_to_query PARAMS ((char, char *, char *, int *)); - -/* Pointer to array of target architecture structures; the size of the - array; the current index into the array; the allocated size of the - array. */ -struct target_ops **target_structs; -unsigned target_struct_size; -unsigned target_struct_index; -unsigned target_struct_allocsize; -#define DEFAULT_ALLOCSIZE 10 - -/* The initial current target, so that there is always a semi-valid - current target. */ - -struct target_ops dummy_target = { - "None", /* to_shortname */ - "None", /* to_longname */ - "", /* to_doc */ - 0, /* to_open */ - 0, /* to_close */ - find_default_attach, /* to_attach */ - NULL, /* to_post_attach */ - find_default_require_attach, /* to_require_attach */ - 0, /* to_detach */ - find_default_require_detach, /* to_require_detach */ - 0, /* to_resume */ - 0, /* to_wait */ - NULL, /* to_post_wait */ - 0, /* to_fetch_registers */ - 0, /* to_store_registers */ - 0, /* to_prepare_to_store */ - 0, /* to_xfer_memory */ - 0, /* to_files_info */ - 0, /* to_insert_breakpoint */ - 0, /* to_remove_breakpoint */ - 0, /* to_terminal_init */ - 0, /* to_terminal_inferior */ - 0, /* to_terminal_ours_for_output */ - 0, /* to_terminal_ours */ - 0, /* to_terminal_info */ - 0, /* to_kill */ - 0, /* to_load */ - 0, /* to_lookup_symbol */ - find_default_create_inferior, /* to_create_inferior */ - NULL, /* to_post_startup_inferior */ - NULL, /* to_acknowledge_created_inferior */ - find_default_clone_and_follow_inferior, /* to_clone_and_follow_inferior */ - NULL, /* to_post_follow_inferior_by_clone */ - NULL, /* to_insert_fork_catchpoint */ - NULL, /* to_remove_fork_catchpoint */ - NULL, /* to_insert_vfork_catchpoint */ - NULL, /* to_remove_vfork_catchpoint */ - NULL, /* to_has_forked */ - NULL, /* to_has_vforked */ - NULL, /* to_can_follow_vfork_prior_to_exec */ - NULL, /* to_post_follow_vfork */ - NULL, /* to_insert_exec_catchpoint */ - NULL, /* to_remove_exec_catchpoint */ - NULL, /* to_has_execd */ - NULL, /* to_reported_exec_events_per_exec_call */ - NULL, /* to_has_syscall_event */ - NULL, /* to_has_exited */ - 0, /* to_mourn_inferior */ - 0, /* to_can_run */ - 0, /* to_notice_signals */ - 0, /* to_thread_alive */ - 0, /* to_stop */ - 0, /* to_query */ - NULL, /* to_enable_exception_callback */ - NULL, /* to_get_current_exception_event */ - NULL, /* to_pid_to_exec_file */ - NULL, /* to_core_file_to_sym_file */ - dummy_stratum, /* to_stratum */ - 0, /* to_next */ - 0, /* to_has_all_memory */ - 0, /* to_has_memory */ - 0, /* to_has_stack */ - 0, /* to_has_registers */ - 0, /* to_has_execution */ - tc_none, /* to_has_thread_control */ - 0, /* to_sections */ - 0, /* to_sections_end */ - OPS_MAGIC, /* to_magic */ -}; - -/* Top of target stack. */ - -struct target_stack_item *target_stack; - -/* The target structure we are currently using to talk to a process - or file or whatever "inferior" we have. */ - -struct target_ops current_target; - -/* Command list for target. */ - -static struct cmd_list_element *targetlist = NULL; - -/* Nonzero if we are debugging an attached outside process - rather than an inferior. */ - -int attach_flag; - -#ifdef MAINTENANCE_CMDS -/* Non-zero if we want to see trace of target level stuff. */ - -static int targetdebug = 0; - -static void setup_target_debug PARAMS ((void)); - -#endif - -/* The user just typed 'target' without the name of a target. */ - -/* ARGSUSED */ -static void -target_command (arg, from_tty) - char *arg; - int from_tty; -{ - fputs_filtered ("Argument required (target name). Try `help target'\n", - gdb_stdout); -} - -/* Add a possible target architecture to the list. */ - -void -add_target (t) - struct target_ops *t; -{ - if (!target_structs) - { - target_struct_allocsize = DEFAULT_ALLOCSIZE; - target_structs = (struct target_ops **) xmalloc - (target_struct_allocsize * sizeof (*target_structs)); - } - if (target_struct_size >= target_struct_allocsize) - { - target_struct_allocsize *= 2; - target_structs = (struct target_ops **) - xrealloc ((char *) target_structs, - target_struct_allocsize * sizeof (*target_structs)); - } - target_structs[target_struct_size++] = t; -/* cleanup_target (t);*/ - - if (targetlist == NULL) - add_prefix_cmd ("target", class_run, target_command, - "Connect to a target machine or process.\n\ -The first argument is the type or protocol of the target machine.\n\ -Remaining arguments are interpreted by the target protocol. For more\n\ -information on the arguments for a particular protocol, type\n\ -`help target ' followed by the protocol name.", - &targetlist, "target ", 0, &cmdlist); - add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); -} - -/* Stub functions */ - -void -target_ignore () -{ -} - -/* ARGSUSED */ -static int -nomemory (memaddr, myaddr, len, write, t) - CORE_ADDR memaddr; - char *myaddr; - int len; - int write; - struct target_ops *t; -{ - errno = EIO; /* Can't read/write this location */ - return 0; /* No bytes handled */ -} - -static void -tcomplain () -{ - error ("You can't do that when your target is `%s'", - current_target.to_shortname); -} - -void -noprocess () -{ - error ("You can't do that without a process to debug."); -} - -/* ARGSUSED */ -static int -nosymbol (name, addrp) - char *name; - CORE_ADDR *addrp; -{ - return 1; /* Symbol does not exist in target env */ -} - -/* ARGSUSED */ -void -nosupport_runtime () -{ - if (!inferior_pid) - noprocess (); - else - error ("No run-time support for this"); -} - - -/* ARGSUSED */ -static void -default_terminal_info (args, from_tty) - char *args; - int from_tty; -{ - printf_unfiltered("No saved terminal information.\n"); -} - -/* This is the default target_create_inferior and target_attach function. - If the current target is executing, it asks whether to kill it off. - If this function returns without calling error(), it has killed off - the target, and the operation should be attempted. */ - -static void -kill_or_be_killed (from_tty) - int from_tty; -{ - if (target_has_execution) - { - printf_unfiltered ("You are already running a program:\n"); - target_files_info (); - if (query ("Kill it? ")) { - target_kill (); - if (target_has_execution) - error ("Killing the program did not help."); - return; - } else { - error ("Program not killed."); - } - } - tcomplain(); -} - -static void -maybe_kill_then_attach (args, from_tty) - char *args; - int from_tty; -{ - kill_or_be_killed (from_tty); - target_attach (args, from_tty); -} - -static void -maybe_kill_then_create_inferior (exec, args, env) - char *exec; - char *args; - char **env; -{ - kill_or_be_killed (0); - target_create_inferior (exec, args, env); -} - -static void -default_clone_and_follow_inferior (child_pid, followed_child) - int child_pid; - int *followed_child; -{ - target_clone_and_follow_inferior (child_pid, followed_child); -} - -/* Clean up a target struct so it no longer has any zero pointers in it. - We default entries, at least to stubs that print error messages. */ - -static void -cleanup_target (t) - struct target_ops *t; -{ - -#define de_fault(field, value) \ - if (!t->field) t->field = value - - /* FIELD DEFAULT VALUE */ - - de_fault (to_open, (void (*) PARAMS((char *, int))) tcomplain); - de_fault (to_close, (void (*) PARAMS((int))) target_ignore); - de_fault (to_attach, maybe_kill_then_attach); - de_fault (to_post_attach, (void (*) PARAMS ((int))) target_ignore); - de_fault (to_require_attach, maybe_kill_then_attach); - de_fault (to_detach, (void (*) PARAMS((char *, int))) target_ignore); - de_fault (to_require_detach, (void (*) PARAMS((int, char *, int))) target_ignore); - de_fault (to_resume, (void (*) PARAMS((int, int, enum target_signal))) noprocess); - de_fault (to_wait, (int (*) PARAMS((int, struct target_waitstatus *))) noprocess); - de_fault (to_post_wait, (void (*) PARAMS ((int, int))) target_ignore); - de_fault (to_fetch_registers, (void (*) PARAMS((int))) target_ignore); - de_fault (to_store_registers, (void (*) PARAMS((int))) noprocess); - de_fault (to_prepare_to_store, (void (*) PARAMS((void))) noprocess); - de_fault (to_xfer_memory, (int (*) PARAMS((CORE_ADDR, char *, int, int, struct target_ops *))) nomemory); - de_fault (to_files_info, (void (*) PARAMS((struct target_ops *))) target_ignore); - de_fault (to_insert_breakpoint, memory_insert_breakpoint); - de_fault (to_remove_breakpoint, memory_remove_breakpoint); - de_fault (to_terminal_init, (void (*) PARAMS((void))) target_ignore); - de_fault (to_terminal_inferior, (void (*) PARAMS ((void))) target_ignore); - de_fault (to_terminal_ours_for_output,(void (*) PARAMS ((void))) target_ignore); - de_fault (to_terminal_ours, (void (*) PARAMS ((void))) target_ignore); - de_fault (to_terminal_info, default_terminal_info); - de_fault (to_kill, (void (*) PARAMS((void))) noprocess); - de_fault (to_load, (void (*) PARAMS((char *, int))) tcomplain); - de_fault (to_lookup_symbol, (int (*) PARAMS ((char *, CORE_ADDR *))) nosymbol); - de_fault (to_create_inferior, maybe_kill_then_create_inferior); - de_fault (to_post_startup_inferior, (void (*) PARAMS ((int))) target_ignore); - de_fault (to_acknowledge_created_inferior, (void (*) PARAMS((int))) target_ignore); - de_fault (to_clone_and_follow_inferior, default_clone_and_follow_inferior); - de_fault (to_post_follow_inferior_by_clone, (void (*) PARAMS ((void))) target_ignore); - de_fault (to_insert_fork_catchpoint, (int (*) PARAMS ((int))) tcomplain); - de_fault (to_remove_fork_catchpoint, (int (*) PARAMS ((int))) tcomplain); - de_fault (to_insert_vfork_catchpoint, (int (*) PARAMS ((int))) tcomplain); - de_fault (to_remove_vfork_catchpoint, (int (*) PARAMS ((int))) tcomplain); - de_fault (to_has_forked, (int (*) PARAMS ((int, int *))) return_zero); - de_fault (to_has_vforked, (int (*) PARAMS ((int, int *))) return_zero); - de_fault (to_can_follow_vfork_prior_to_exec, (int (*) PARAMS ((void ))) return_zero); - de_fault (to_post_follow_vfork, (void (*) PARAMS ((int, int, int, int))) target_ignore); - de_fault (to_insert_exec_catchpoint, (int (*) PARAMS ((int))) tcomplain); - de_fault (to_remove_exec_catchpoint, (int (*) PARAMS ((int))) tcomplain); - de_fault (to_has_execd, (int (*) PARAMS ((int, char **))) return_zero); - de_fault (to_reported_exec_events_per_exec_call, (int (*) PARAMS ((void))) return_one); - de_fault (to_has_syscall_event, (int (*) PARAMS ((int, enum target_waitkind *, int *))) return_zero); - de_fault (to_has_exited, (int (*) PARAMS ((int, int, int *))) return_zero); - de_fault (to_mourn_inferior, (void (*) PARAMS ((void))) noprocess); - de_fault (to_can_run, return_zero); - de_fault (to_notice_signals, (void (*) PARAMS((int))) target_ignore); - de_fault (to_thread_alive, (int (*) PARAMS((int))) target_ignore); - de_fault (to_stop, (void (*) PARAMS((void))) target_ignore); - de_fault (to_query, (int (*) PARAMS((char, char*, char *, int *))) target_ignore); - de_fault (to_enable_exception_callback, (struct symtab_and_line * (*) PARAMS((enum exception_event_kind, int))) nosupport_runtime); - de_fault (to_get_current_exception_event, (struct exception_event_record * (*) PARAMS((void))) nosupport_runtime); - - de_fault (to_pid_to_exec_file, (char* (*) PARAMS((int))) return_zero); - de_fault (to_core_file_to_sym_file, (char* (*) PARAMS ((char *))) return_zero); -#undef de_fault -} - -/* Go through the target stack from top to bottom, copying over zero entries in - current_target. In effect, we are doing class inheritance through the - pushed target vectors. */ - -static void -update_current_target () -{ - struct target_stack_item *item; - struct target_ops *t; - - /* First, reset current_target */ - memset (¤t_target, 0, sizeof current_target); - - for (item = target_stack; item; item = item->next) - { - t = item->target_ops; - -#define INHERIT(FIELD, TARGET) \ - if (!current_target.FIELD) \ - current_target.FIELD = TARGET->FIELD - - INHERIT (to_shortname, t); - INHERIT (to_longname, t); - INHERIT (to_doc, t); - INHERIT (to_open, t); - INHERIT (to_close, t); - INHERIT (to_attach, t); - INHERIT (to_post_attach, t); - INHERIT (to_require_attach, t); - INHERIT (to_detach, t); - INHERIT (to_require_detach, t); - INHERIT (to_resume, t); - INHERIT (to_wait, t); - INHERIT (to_post_wait, t); - INHERIT (to_fetch_registers, t); - INHERIT (to_store_registers, t); - INHERIT (to_prepare_to_store, t); - INHERIT (to_xfer_memory, t); - INHERIT (to_files_info, t); - INHERIT (to_insert_breakpoint, t); - INHERIT (to_remove_breakpoint, t); - INHERIT (to_terminal_init, t); - INHERIT (to_terminal_inferior, t); - INHERIT (to_terminal_ours_for_output, t); - INHERIT (to_terminal_ours, t); - INHERIT (to_terminal_info, t); - INHERIT (to_kill, t); - INHERIT (to_load, t); - INHERIT (to_lookup_symbol, t); - INHERIT (to_create_inferior, t); - INHERIT (to_post_startup_inferior, t); - INHERIT (to_acknowledge_created_inferior, t); - INHERIT (to_clone_and_follow_inferior, t); - INHERIT (to_post_follow_inferior_by_clone, t); - INHERIT (to_insert_fork_catchpoint, t); - INHERIT (to_remove_fork_catchpoint, t); - INHERIT (to_insert_vfork_catchpoint, t); - INHERIT (to_remove_vfork_catchpoint, t); - INHERIT (to_has_forked, t); - INHERIT (to_has_vforked, t); - INHERIT (to_can_follow_vfork_prior_to_exec, t); - INHERIT (to_post_follow_vfork, t); - INHERIT (to_insert_exec_catchpoint, t); - INHERIT (to_remove_exec_catchpoint, t); - INHERIT (to_has_execd, t); - INHERIT (to_reported_exec_events_per_exec_call, t); - INHERIT (to_has_syscall_event, t); - INHERIT (to_has_exited, t); - INHERIT (to_mourn_inferior, t); - INHERIT (to_can_run, t); - INHERIT (to_notice_signals, t); - INHERIT (to_thread_alive, t); - INHERIT (to_stop, t); - INHERIT (to_query, t); - INHERIT (to_enable_exception_callback, t); - INHERIT (to_get_current_exception_event, t); - INHERIT (to_pid_to_exec_file, t); - INHERIT (to_core_file_to_sym_file, t); - INHERIT (to_stratum, t); - INHERIT (DONT_USE, t); - INHERIT (to_has_all_memory, t); - INHERIT (to_has_memory, t); - INHERIT (to_has_stack, t); - INHERIT (to_has_registers, t); - INHERIT (to_has_execution, t); - INHERIT (to_has_thread_control, t); - INHERIT (to_sections, t); - INHERIT (to_sections_end, t); - INHERIT (to_magic, t); - -#undef INHERIT - } -} - -/* Push a new target type into the stack of the existing target accessors, - possibly superseding some of the existing accessors. - - Result is zero if the pushed target ended up on top of the stack, - nonzero if at least one target is on top of it. - - Rather than allow an empty stack, we always have the dummy target at - the bottom stratum, so we can call the function vectors without - checking them. */ - -int -push_target (t) - struct target_ops *t; -{ - struct target_stack_item *cur, *prev, *tmp; - - /* Check magic number. If wrong, it probably means someone changed - the struct definition, but not all the places that initialize one. */ - if (t->to_magic != OPS_MAGIC) - { - fprintf_unfiltered(gdb_stderr, - "Magic number of %s target struct wrong\n", - t->to_shortname); - abort(); - } - - /* Find the proper stratum to install this target in. */ - - for (prev = NULL, cur = target_stack; cur; prev = cur, cur = cur->next) - { - if ((int)(t->to_stratum) >= (int)(cur->target_ops->to_stratum)) - break; - } - - /* If there's already targets at this stratum, remove them. */ - - if (cur) - while (t->to_stratum == cur->target_ops->to_stratum) - { - /* There's already something on this stratum. Close it off. */ - if (cur->target_ops->to_close) - (cur->target_ops->to_close) (0); - if (prev) - prev->next = cur->next; /* Unchain old target_ops */ - else - target_stack = cur->next; /* Unchain first on list */ - tmp = cur->next; - free (cur); - cur = tmp; - } - - /* We have removed all targets in our stratum, now add the new one. */ - - tmp = (struct target_stack_item *) - xmalloc (sizeof (struct target_stack_item)); - tmp->next = cur; - tmp->target_ops = t; - - if (prev) - prev->next = tmp; - else - target_stack = tmp; - - update_current_target (); - - cleanup_target (¤t_target); /* Fill in the gaps */ - -#ifdef MAINTENANCE_CMDS - if (targetdebug) - setup_target_debug (); -#endif - - return prev != 0; -} - -/* Remove a target_ops vector from the stack, wherever it may be. - Return how many times it was removed (0 or 1). */ - -int -unpush_target (t) - struct target_ops *t; -{ - struct target_stack_item *cur, *prev; - - if (t->to_close) - t->to_close (0); /* Let it clean up */ - - /* Look for the specified target. Note that we assume that a target - can only occur once in the target stack. */ - - for (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next) - if (cur->target_ops == t) - break; - - if (!cur) - return 0; /* Didn't find target_ops, quit now */ - - /* Unchain the target */ - - if (!prev) - target_stack = cur->next; - else - prev->next = cur->next; - - free (cur); /* Release the target_stack_item */ - - update_current_target (); - cleanup_target (¤t_target); - - return 1; -} - -void -pop_target () -{ - (current_target.to_close)(0); /* Let it clean up */ - if (unpush_target (target_stack->target_ops) == 1) - return; - - fprintf_unfiltered(gdb_stderr, - "pop_target couldn't find target %s\n", - current_target.to_shortname); - abort(); -} - -#undef MIN -#define MIN(A, B) (((A) <= (B)) ? (A) : (B)) - -/* target_read_string -- read a null terminated string, up to LEN bytes, - from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. - Set *STRING to a pointer to malloc'd memory containing the data; the caller - is responsible for freeing it. Return the number of bytes successfully - read. */ - -int -target_read_string (memaddr, string, len, errnop) - CORE_ADDR memaddr; - char **string; - int len; - int *errnop; -{ - int tlen, origlen, offset, i; - char buf[4]; - int errcode = 0; - char *buffer; - int buffer_allocated; - char *bufptr; - unsigned int nbytes_read = 0; - - /* Small for testing. */ - buffer_allocated = 4; - buffer = xmalloc (buffer_allocated); - bufptr = buffer; - - origlen = len; - - while (len > 0) - { - tlen = MIN (len, 4 - (memaddr & 3)); - offset = memaddr & 3; - - errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0, NULL); - if (errcode != 0) - { - /* The transfer request might have crossed the boundary to an - unallocated region of memory. Retry the transfer, requesting - a single byte. */ - tlen = 1; - offset = 0; - errcode = target_xfer_memory (memaddr, buf, 1, 0, NULL); - if (errcode != 0) - goto done; - } - - if (bufptr - buffer + tlen > buffer_allocated) - { - unsigned int bytes; - bytes = bufptr - buffer; - buffer_allocated *= 2; - buffer = xrealloc (buffer, buffer_allocated); - bufptr = buffer + bytes; - } - - for (i = 0; i < tlen; i++) - { - *bufptr++ = buf[i + offset]; - if (buf[i + offset] == '\000') - { - nbytes_read += i + 1; - goto done; - } - } - - memaddr += tlen; - len -= tlen; - nbytes_read += tlen; - } - done: - if (errnop != NULL) - *errnop = errcode; - if (string != NULL) - *string = buffer; - return nbytes_read; -} - -/* Read LEN bytes of target memory at address MEMADDR, placing the results in - GDB's memory at MYADDR. Returns either 0 for success or an errno value - if any error occurs. - - If an error occurs, no guarantee is made about the contents of the data at - MYADDR. In particular, the caller should not depend upon partial reads - filling the buffer with good data. There is no way for the caller to know - how much good data might have been transfered anyway. Callers that can - deal with partial reads should call target_read_memory_partial. */ - -int -target_read_memory (memaddr, myaddr, len) - CORE_ADDR memaddr; - char *myaddr; - int len; -{ - return target_xfer_memory (memaddr, myaddr, len, 0, NULL); -} - -int -target_read_memory_section (memaddr, myaddr, len, bfd_section) - CORE_ADDR memaddr; - char *myaddr; - int len; - asection *bfd_section; -{ - return target_xfer_memory (memaddr, myaddr, len, 0, bfd_section); -} - -/* Read LEN bytes of target memory at address MEMADDR, placing the results - in GDB's memory at MYADDR. Returns a count of the bytes actually read, - and optionally an errno value in the location pointed to by ERRNOPTR - if ERRNOPTR is non-null. */ - -int -target_read_memory_partial (memaddr, myaddr, len, errnoptr) - CORE_ADDR memaddr; - char *myaddr; - int len; - int *errnoptr; -{ - int nread; /* Number of bytes actually read. */ - int errcode; /* Error from last read. */ - - /* First try a complete read. */ - errcode = target_xfer_memory (memaddr, myaddr, len, 0, NULL); - if (errcode == 0) - { - /* Got it all. */ - nread = len; - } - else - { - /* Loop, reading one byte at a time until we get as much as we can. */ - for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) - { - errcode = target_xfer_memory (memaddr++, myaddr++, 1, 0, NULL); - } - /* If an error, the last read was unsuccessful, so adjust count. */ - if (errcode != 0) - { - nread--; - } - } - if (errnoptr != NULL) - { - *errnoptr = errcode; - } - return (nread); -} - -int -target_write_memory (memaddr, myaddr, len) - CORE_ADDR memaddr; - char *myaddr; - int len; -{ - return target_xfer_memory (memaddr, myaddr, len, 1, NULL); -} - -/* This variable is used to pass section information down to targets. This - *should* be done by adding an argument to the target_xfer_memory function - of all the targets, but I didn't feel like changing 50+ files. */ - -asection *target_memory_bfd_section = NULL; - -/* Move memory to or from the targets. Iterate until all of it has - been moved, if necessary. The top target gets priority; anything - it doesn't want, is offered to the next one down, etc. Note the - business with curlen: if an early target says "no, but I have a - boundary overlapping this xfer" then we shorten what we offer to - the subsequent targets so the early guy will get a chance at the - tail before the subsequent ones do. - - Result is 0 or errno value. */ - -static int -target_xfer_memory (memaddr, myaddr, len, write, bfd_section) - CORE_ADDR memaddr; - char *myaddr; - int len; - int write; - asection *bfd_section; -{ - int curlen; - int res; - struct target_ops *t; - struct target_stack_item *item; - - /* Zero length requests are ok and require no work. */ - if (len == 0) - return 0; - - target_memory_bfd_section = bfd_section; - - /* to_xfer_memory is not guaranteed to set errno, even when it returns - 0. */ - errno = 0; - - /* The quick case is that the top target does it all. */ - res = current_target.to_xfer_memory - (memaddr, myaddr, len, write, ¤t_target); - if (res == len) - return 0; - - if (res > 0) - goto bump; - /* If res <= 0 then we call it again in the loop. Ah well. */ - - for (; len > 0;) - { - curlen = len; /* Want to do it all */ - for (item = target_stack; item; item = item->next) - { - t = item->target_ops; - if (!t->to_has_memory) - continue; - - res = t->to_xfer_memory (memaddr, myaddr, curlen, write, t); - if (res > 0) - break; /* Handled all or part of xfer */ - if (t->to_has_all_memory) - break; - } - - if (res <= 0) - { - /* If this address is for nonexistent memory, - read zeros if reading, or do nothing if writing. Return error. */ - if (!write) - memset (myaddr, 0, len); - if (errno == 0) - return EIO; - else - return errno; - } -bump: - memaddr += res; - myaddr += res; - len -= res; - } - return 0; /* We managed to cover it all somehow. */ -} - - -/* ARGSUSED */ -static void -target_info (args, from_tty) - char *args; - int from_tty; -{ - struct target_ops *t; - struct target_stack_item *item; - int has_all_mem = 0; - - if (symfile_objfile != NULL) - printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name); - -#ifdef FILES_INFO_HOOK - if (FILES_INFO_HOOK ()) - return; -#endif - - for (item = target_stack; item; item = item->next) - { - t = item->target_ops; - - if (!t->to_has_memory) - continue; - - if ((int)(t->to_stratum) <= (int)dummy_stratum) - continue; - if (has_all_mem) - printf_unfiltered("\tWhile running this, GDB does not access memory from...\n"); - printf_unfiltered("%s:\n", t->to_longname); - (t->to_files_info)(t); - has_all_mem = t->to_has_all_memory; - } -} - -/* This is to be called by the open routine before it does - anything. */ - -void -target_preopen (from_tty) - int from_tty; -{ - dont_repeat(); - - if (target_has_execution) - { - if (query ("A program is being debugged already. Kill it? ")) - target_kill (); - else - error ("Program not killed."); - } - - /* Calling target_kill may remove the target from the stack. But if - it doesn't (which seems like a win for UDI), remove it now. */ - - if (target_has_execution) - pop_target (); -} - -/* Detach a target after doing deferred register stores. */ - -void -target_detach (args, from_tty) - char *args; - int from_tty; -{ - /* Handle any optimized stores to the inferior. */ -#ifdef DO_DEFERRED_STORES - DO_DEFERRED_STORES; -#endif - (current_target.to_detach) (args, from_tty); -} - -void -target_link (modname, t_reloc) - char *modname; - CORE_ADDR *t_reloc; -{ - if (STREQ(current_target.to_shortname, "rombug")) - { - (current_target.to_lookup_symbol) (modname, t_reloc); - if (*t_reloc == 0) - error("Unable to link to %s and get relocation in rombug", modname); - } - else - *t_reloc = (CORE_ADDR)-1; -} - -/* Look through the list of possible targets for a target that can - execute a run or attach command without any other data. This is - used to locate the default process stratum. - - Result is always valid (error() is called for errors). */ - -static struct target_ops * -find_default_run_target (do_mesg) - char *do_mesg; -{ - struct target_ops **t; - struct target_ops *runable = NULL; - int count; - - count = 0; - - for (t = target_structs; t < target_structs + target_struct_size; - ++t) - { - if ((*t)->to_can_run && target_can_run(*t)) - { - runable = *t; - ++count; - } - } - - if (count != 1) - error ("Don't know how to %s. Try \"help target\".", do_mesg); - - return runable; -} - -void -find_default_attach (args, from_tty) - char *args; - int from_tty; -{ - struct target_ops *t; - - t = find_default_run_target("attach"); - (t->to_attach) (args, from_tty); - return; -} - -void -find_default_require_attach (args, from_tty) - char *args; - int from_tty; -{ - struct target_ops *t; - - t = find_default_run_target("require_attach"); - (t->to_require_attach) (args, from_tty); - return; -} - -void -find_default_require_detach (pid, args, from_tty) - int pid; - char * args; - int from_tty; -{ - struct target_ops *t; - - t = find_default_run_target("require_detach"); - (t->to_require_detach) (pid, args, from_tty); - return; -} - -void -find_default_create_inferior (exec_file, allargs, env) - char *exec_file; - char *allargs; - char **env; -{ - struct target_ops *t; - - t = find_default_run_target("run"); - (t->to_create_inferior) (exec_file, allargs, env); - return; -} - -void -find_default_clone_and_follow_inferior (child_pid, followed_child) - int child_pid; - int *followed_child; -{ - struct target_ops *t; - - t = find_default_run_target("run"); - (t->to_clone_and_follow_inferior) (child_pid, followed_child); - return; -} - -static int -return_zero () -{ - return 0; -} - -static int -return_one () -{ - return 1; -} - -struct target_ops * -find_core_target () -{ - struct target_ops **t; - struct target_ops *runable = NULL; - int count; - - count = 0; - - for (t = target_structs; t < target_structs + target_struct_size; - ++t) - { - if ((*t)->to_stratum == core_stratum) - { - runable = *t; - ++count; - } - } - - return(count == 1 ? runable : NULL); -} - -/* The inferior process has died. Long live the inferior! */ - -void -generic_mourn_inferior () -{ - extern int show_breakpoint_hit_counts; - - inferior_pid = 0; - attach_flag = 0; - breakpoint_init_inferior (inf_exited); - registers_changed (); - -#ifdef CLEAR_DEFERRED_STORES - /* Delete any pending stores to the inferior... */ - CLEAR_DEFERRED_STORES; -#endif - - reopen_exec_file (); - reinit_frame_cache (); - - /* It is confusing to the user for ignore counts to stick around - from previous runs of the inferior. So clear them. */ - /* However, it is more confusing for the ignore counts to disappear when - using hit counts. So don't clear them if we're counting hits. */ - if (!show_breakpoint_hit_counts) - breakpoint_clear_ignore_counts (); -} - -/* This table must match in order and size the signals in enum target_signal - in target.h. */ -static struct { - char *name; - char *string; - } signals [] = -{ - {"0", "Signal 0"}, - {"SIGHUP", "Hangup"}, - {"SIGINT", "Interrupt"}, - {"SIGQUIT", "Quit"}, - {"SIGILL", "Illegal instruction"}, - {"SIGTRAP", "Trace/breakpoint trap"}, - {"SIGABRT", "Aborted"}, - {"SIGEMT", "Emulation trap"}, - {"SIGFPE", "Arithmetic exception"}, - {"SIGKILL", "Killed"}, - {"SIGBUS", "Bus error"}, - {"SIGSEGV", "Segmentation fault"}, - {"SIGSYS", "Bad system call"}, - {"SIGPIPE", "Broken pipe"}, - {"SIGALRM", "Alarm clock"}, - {"SIGTERM", "Terminated"}, - {"SIGURG", "Urgent I/O condition"}, - {"SIGSTOP", "Stopped (signal)"}, - {"SIGTSTP", "Stopped (user)"}, - {"SIGCONT", "Continued"}, - {"SIGCHLD", "Child status changed"}, - {"SIGTTIN", "Stopped (tty input)"}, - {"SIGTTOU", "Stopped (tty output)"}, - {"SIGIO", "I/O possible"}, - {"SIGXCPU", "CPU time limit exceeded"}, - {"SIGXFSZ", "File size limit exceeded"}, - {"SIGVTALRM", "Virtual timer expired"}, - {"SIGPROF", "Profiling timer expired"}, - {"SIGWINCH", "Window size changed"}, - {"SIGLOST", "Resource lost"}, - {"SIGUSR1", "User defined signal 1"}, - {"SIGUSR2", "User defined signal 2"}, - {"SIGPWR", "Power fail/restart"}, - {"SIGPOLL", "Pollable event occurred"}, - {"SIGWIND", "SIGWIND"}, - {"SIGPHONE", "SIGPHONE"}, - {"SIGWAITING", "Process's LWPs are blocked"}, - {"SIGLWP", "Signal LWP"}, - {"SIGDANGER", "Swap space dangerously low"}, - {"SIGGRANT", "Monitor mode granted"}, - {"SIGRETRACT", "Need to relinquish monitor mode"}, - {"SIGMSG", "Monitor mode data available"}, - {"SIGSOUND", "Sound completed"}, - {"SIGSAK", "Secure attention"}, - {"SIGPRIO", "SIGPRIO"}, - {"SIG33", "Real-time event 33"}, - {"SIG34", "Real-time event 34"}, - {"SIG35", "Real-time event 35"}, - {"SIG36", "Real-time event 36"}, - {"SIG37", "Real-time event 37"}, - {"SIG38", "Real-time event 38"}, - {"SIG39", "Real-time event 39"}, - {"SIG40", "Real-time event 40"}, - {"SIG41", "Real-time event 41"}, - {"SIG42", "Real-time event 42"}, - {"SIG43", "Real-time event 43"}, - {"SIG44", "Real-time event 44"}, - {"SIG45", "Real-time event 45"}, - {"SIG46", "Real-time event 46"}, - {"SIG47", "Real-time event 47"}, - {"SIG48", "Real-time event 48"}, - {"SIG49", "Real-time event 49"}, - {"SIG50", "Real-time event 50"}, - {"SIG51", "Real-time event 51"}, - {"SIG52", "Real-time event 52"}, - {"SIG53", "Real-time event 53"}, - {"SIG54", "Real-time event 54"}, - {"SIG55", "Real-time event 55"}, - {"SIG56", "Real-time event 56"}, - {"SIG57", "Real-time event 57"}, - {"SIG58", "Real-time event 58"}, - {"SIG59", "Real-time event 59"}, - {"SIG60", "Real-time event 60"}, - {"SIG61", "Real-time event 61"}, - {"SIG62", "Real-time event 62"}, - {"SIG63", "Real-time event 63"}, - -#if defined(MACH) || defined(__MACH__) - /* Mach exceptions */ - {"EXC_BAD_ACCESS", "Could not access memory"}, - {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"}, - {"EXC_ARITHMETIC", "Arithmetic exception"}, - {"EXC_EMULATION", "Emulation instruction"}, - {"EXC_SOFTWARE", "Software generated exception"}, - {"EXC_BREAKPOINT", "Breakpoint"}, -#endif - {NULL, "Unknown signal"}, - {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"}, - - /* Last entry, used to check whether the table is the right size. */ - {NULL, "TARGET_SIGNAL_MAGIC"} -}; - -/* Return the string for a signal. */ -char * -target_signal_to_string (sig) - enum target_signal sig; -{ - return signals[sig].string; -} - -/* Return the name for a signal. */ -char * -target_signal_to_name (sig) - enum target_signal sig; -{ - if (sig == TARGET_SIGNAL_UNKNOWN) - /* I think the code which prints this will always print it along with - the string, so no need to be verbose. */ - return "?"; - return signals[sig].name; -} - -/* Given a name, return its signal. */ -enum target_signal -target_signal_from_name (name) - char *name; -{ - enum target_signal sig; - - /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD" - for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more - questionable; seems like by now people should call it SIGABRT - instead. */ - - /* This ugly cast brought to you by the native VAX compiler. */ - for (sig = TARGET_SIGNAL_HUP; - signals[sig].name != NULL; - sig = (enum target_signal)((int)sig + 1)) - if (STREQ (name, signals[sig].name)) - return sig; - return TARGET_SIGNAL_UNKNOWN; -} - -/* The following functions are to help certain targets deal - with the signal/waitstatus stuff. They could just as well be in - a file called native-utils.c or unixwaitstatus-utils.c or whatever. */ - -/* Convert host signal to our signals. */ -enum target_signal -target_signal_from_host (hostsig) - int hostsig; -{ - /* A switch statement would make sense but would require special kludges - to deal with the cases where more than one signal has the same number. */ - - if (hostsig == 0) return TARGET_SIGNAL_0; - -#if defined (SIGHUP) - if (hostsig == SIGHUP) return TARGET_SIGNAL_HUP; -#endif -#if defined (SIGINT) - if (hostsig == SIGINT) return TARGET_SIGNAL_INT; -#endif -#if defined (SIGQUIT) - if (hostsig == SIGQUIT) return TARGET_SIGNAL_QUIT; -#endif -#if defined (SIGILL) - if (hostsig == SIGILL) return TARGET_SIGNAL_ILL; -#endif -#if defined (SIGTRAP) - if (hostsig == SIGTRAP) return TARGET_SIGNAL_TRAP; -#endif -#if defined (SIGABRT) - if (hostsig == SIGABRT) return TARGET_SIGNAL_ABRT; -#endif -#if defined (SIGEMT) - if (hostsig == SIGEMT) return TARGET_SIGNAL_EMT; -#endif -#if defined (SIGFPE) - if (hostsig == SIGFPE) return TARGET_SIGNAL_FPE; -#endif -#if defined (SIGKILL) - if (hostsig == SIGKILL) return TARGET_SIGNAL_KILL; -#endif -#if defined (SIGBUS) - if (hostsig == SIGBUS) return TARGET_SIGNAL_BUS; -#endif -#if defined (SIGSEGV) - if (hostsig == SIGSEGV) return TARGET_SIGNAL_SEGV; -#endif -#if defined (SIGSYS) - if (hostsig == SIGSYS) return TARGET_SIGNAL_SYS; -#endif -#if defined (SIGPIPE) - if (hostsig == SIGPIPE) return TARGET_SIGNAL_PIPE; -#endif -#if defined (SIGALRM) - if (hostsig == SIGALRM) return TARGET_SIGNAL_ALRM; -#endif -#if defined (SIGTERM) - if (hostsig == SIGTERM) return TARGET_SIGNAL_TERM; -#endif -#if defined (SIGUSR1) - if (hostsig == SIGUSR1) return TARGET_SIGNAL_USR1; -#endif -#if defined (SIGUSR2) - if (hostsig == SIGUSR2) return TARGET_SIGNAL_USR2; -#endif -#if defined (SIGCLD) - if (hostsig == SIGCLD) return TARGET_SIGNAL_CHLD; -#endif -#if defined (SIGCHLD) - if (hostsig == SIGCHLD) return TARGET_SIGNAL_CHLD; -#endif -#if defined (SIGPWR) - if (hostsig == SIGPWR) return TARGET_SIGNAL_PWR; -#endif -#if defined (SIGWINCH) - if (hostsig == SIGWINCH) return TARGET_SIGNAL_WINCH; -#endif -#if defined (SIGURG) - if (hostsig == SIGURG) return TARGET_SIGNAL_URG; -#endif -#if defined (SIGIO) - if (hostsig == SIGIO) return TARGET_SIGNAL_IO; -#endif -#if defined (SIGPOLL) - if (hostsig == SIGPOLL) return TARGET_SIGNAL_POLL; -#endif -#if defined (SIGSTOP) - if (hostsig == SIGSTOP) return TARGET_SIGNAL_STOP; -#endif -#if defined (SIGTSTP) - if (hostsig == SIGTSTP) return TARGET_SIGNAL_TSTP; -#endif -#if defined (SIGCONT) - if (hostsig == SIGCONT) return TARGET_SIGNAL_CONT; -#endif -#if defined (SIGTTIN) - if (hostsig == SIGTTIN) return TARGET_SIGNAL_TTIN; -#endif -#if defined (SIGTTOU) - if (hostsig == SIGTTOU) return TARGET_SIGNAL_TTOU; -#endif -#if defined (SIGVTALRM) - if (hostsig == SIGVTALRM) return TARGET_SIGNAL_VTALRM; -#endif -#if defined (SIGPROF) - if (hostsig == SIGPROF) return TARGET_SIGNAL_PROF; -#endif -#if defined (SIGXCPU) - if (hostsig == SIGXCPU) return TARGET_SIGNAL_XCPU; -#endif -#if defined (SIGXFSZ) - if (hostsig == SIGXFSZ) return TARGET_SIGNAL_XFSZ; -#endif -#if defined (SIGWIND) - if (hostsig == SIGWIND) return TARGET_SIGNAL_WIND; -#endif -#if defined (SIGPHONE) - if (hostsig == SIGPHONE) return TARGET_SIGNAL_PHONE; -#endif -#if defined (SIGLOST) - if (hostsig == SIGLOST) return TARGET_SIGNAL_LOST; -#endif -#if defined (SIGWAITING) - if (hostsig == SIGWAITING) return TARGET_SIGNAL_WAITING; -#endif -#if defined (SIGLWP) - if (hostsig == SIGLWP) return TARGET_SIGNAL_LWP; -#endif -#if defined (SIGDANGER) - if (hostsig == SIGDANGER) return TARGET_SIGNAL_DANGER; -#endif -#if defined (SIGGRANT) - if (hostsig == SIGGRANT) return TARGET_SIGNAL_GRANT; -#endif -#if defined (SIGRETRACT) - if (hostsig == SIGRETRACT) return TARGET_SIGNAL_RETRACT; -#endif -#if defined (SIGMSG) - if (hostsig == SIGMSG) return TARGET_SIGNAL_MSG; -#endif -#if defined (SIGSOUND) - if (hostsig == SIGSOUND) return TARGET_SIGNAL_SOUND; -#endif -#if defined (SIGSAK) - if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK; -#endif -#if defined (SIGPRIO) - if (hostsig == SIGPRIO) return TARGET_SIGNAL_PRIO; -#endif - - /* Mach exceptions. Assumes that the values for EXC_ are positive! */ -#if defined (EXC_BAD_ACCESS) && defined (_NSIG) - if (hostsig == _NSIG + EXC_BAD_ACCESS) return TARGET_EXC_BAD_ACCESS; -#endif -#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG) - if (hostsig == _NSIG + EXC_BAD_INSTRUCTION) return TARGET_EXC_BAD_INSTRUCTION; -#endif -#if defined (EXC_ARITHMETIC) && defined (_NSIG) - if (hostsig == _NSIG + EXC_ARITHMETIC) return TARGET_EXC_ARITHMETIC; -#endif -#if defined (EXC_EMULATION) && defined (_NSIG) - if (hostsig == _NSIG + EXC_EMULATION) return TARGET_EXC_EMULATION; -#endif -#if defined (EXC_SOFTWARE) && defined (_NSIG) - if (hostsig == _NSIG + EXC_SOFTWARE) return TARGET_EXC_SOFTWARE; -#endif -#if defined (EXC_BREAKPOINT) && defined (_NSIG) - if (hostsig == _NSIG + EXC_BREAKPOINT) return TARGET_EXC_BREAKPOINT; -#endif - -#if defined (REALTIME_LO) - if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI) - return (enum target_signal) - (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33); -#endif - return TARGET_SIGNAL_UNKNOWN; -} - -int -target_signal_to_host (oursig) - enum target_signal oursig; -{ - switch (oursig) - { - case TARGET_SIGNAL_0: return 0; - -#if defined (SIGHUP) - case TARGET_SIGNAL_HUP: return SIGHUP; -#endif -#if defined (SIGINT) - case TARGET_SIGNAL_INT: return SIGINT; -#endif -#if defined (SIGQUIT) - case TARGET_SIGNAL_QUIT: return SIGQUIT; -#endif -#if defined (SIGILL) - case TARGET_SIGNAL_ILL: return SIGILL; -#endif -#if defined (SIGTRAP) - case TARGET_SIGNAL_TRAP: return SIGTRAP; -#endif -#if defined (SIGABRT) - case TARGET_SIGNAL_ABRT: return SIGABRT; -#endif -#if defined (SIGEMT) - case TARGET_SIGNAL_EMT: return SIGEMT; -#endif -#if defined (SIGFPE) - case TARGET_SIGNAL_FPE: return SIGFPE; -#endif -#if defined (SIGKILL) - case TARGET_SIGNAL_KILL: return SIGKILL; -#endif -#if defined (SIGBUS) - case TARGET_SIGNAL_BUS: return SIGBUS; -#endif -#if defined (SIGSEGV) - case TARGET_SIGNAL_SEGV: return SIGSEGV; -#endif -#if defined (SIGSYS) - case TARGET_SIGNAL_SYS: return SIGSYS; -#endif -#if defined (SIGPIPE) - case TARGET_SIGNAL_PIPE: return SIGPIPE; -#endif -#if defined (SIGALRM) - case TARGET_SIGNAL_ALRM: return SIGALRM; -#endif -#if defined (SIGTERM) - case TARGET_SIGNAL_TERM: return SIGTERM; -#endif -#if defined (SIGUSR1) - case TARGET_SIGNAL_USR1: return SIGUSR1; -#endif -#if defined (SIGUSR2) - case TARGET_SIGNAL_USR2: return SIGUSR2; -#endif -#if defined (SIGCHLD) || defined (SIGCLD) - case TARGET_SIGNAL_CHLD: -#if defined (SIGCHLD) - return SIGCHLD; -#else - return SIGCLD; -#endif -#endif /* SIGCLD or SIGCHLD */ -#if defined (SIGPWR) - case TARGET_SIGNAL_PWR: return SIGPWR; -#endif -#if defined (SIGWINCH) - case TARGET_SIGNAL_WINCH: return SIGWINCH; -#endif -#if defined (SIGURG) - case TARGET_SIGNAL_URG: return SIGURG; -#endif -#if defined (SIGIO) - case TARGET_SIGNAL_IO: return SIGIO; -#endif -#if defined (SIGPOLL) - case TARGET_SIGNAL_POLL: return SIGPOLL; -#endif -#if defined (SIGSTOP) - case TARGET_SIGNAL_STOP: return SIGSTOP; -#endif -#if defined (SIGTSTP) - case TARGET_SIGNAL_TSTP: return SIGTSTP; -#endif -#if defined (SIGCONT) - case TARGET_SIGNAL_CONT: return SIGCONT; -#endif -#if defined (SIGTTIN) - case TARGET_SIGNAL_TTIN: return SIGTTIN; -#endif -#if defined (SIGTTOU) - case TARGET_SIGNAL_TTOU: return SIGTTOU; -#endif -#if defined (SIGVTALRM) - case TARGET_SIGNAL_VTALRM: return SIGVTALRM; -#endif -#if defined (SIGPROF) - case TARGET_SIGNAL_PROF: return SIGPROF; -#endif -#if defined (SIGXCPU) - case TARGET_SIGNAL_XCPU: return SIGXCPU; -#endif -#if defined (SIGXFSZ) - case TARGET_SIGNAL_XFSZ: return SIGXFSZ; -#endif -#if defined (SIGWIND) - case TARGET_SIGNAL_WIND: return SIGWIND; -#endif -#if defined (SIGPHONE) - case TARGET_SIGNAL_PHONE: return SIGPHONE; -#endif -#if defined (SIGLOST) - case TARGET_SIGNAL_LOST: return SIGLOST; -#endif -#if defined (SIGWAITING) - case TARGET_SIGNAL_WAITING: return SIGWAITING; -#endif -#if defined (SIGLWP) - case TARGET_SIGNAL_LWP: return SIGLWP; -#endif -#if defined (SIGDANGER) - case TARGET_SIGNAL_DANGER: return SIGDANGER; -#endif -#if defined (SIGGRANT) - case TARGET_SIGNAL_GRANT: return SIGGRANT; -#endif -#if defined (SIGRETRACT) - case TARGET_SIGNAL_RETRACT: return SIGRETRACT; -#endif -#if defined (SIGMSG) - case TARGET_SIGNAL_MSG: return SIGMSG; -#endif -#if defined (SIGSOUND) - case TARGET_SIGNAL_SOUND: return SIGSOUND; -#endif -#if defined (SIGSAK) - case TARGET_SIGNAL_SAK: return SIGSAK; -#endif -#if defined (SIGPRIO) - case TARGET_SIGNAL_PRIO: return SIGPRIO; -#endif - - /* Mach exceptions. Assumes that the values for EXC_ are positive! */ -#if defined (EXC_BAD_ACCESS) && defined (_NSIG) - case TARGET_EXC_BAD_ACCESS: return _NSIG + EXC_BAD_ACCESS; -#endif -#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG) - case TARGET_EXC_BAD_INSTRUCTION: return _NSIG + EXC_BAD_INSTRUCTION; -#endif -#if defined (EXC_ARITHMETIC) && defined (_NSIG) - case TARGET_EXC_ARITHMETIC: return _NSIG + EXC_ARITHMETIC; -#endif -#if defined (EXC_EMULATION) && defined (_NSIG) - case TARGET_EXC_EMULATION: return _NSIG + EXC_EMULATION; -#endif -#if defined (EXC_SOFTWARE) && defined (_NSIG) - case TARGET_EXC_SOFTWARE: return _NSIG + EXC_SOFTWARE; -#endif -#if defined (EXC_BREAKPOINT) && defined (_NSIG) - case TARGET_EXC_BREAKPOINT: return _NSIG + EXC_BREAKPOINT; -#endif - - default: -#if defined (REALTIME_LO) - if (oursig >= TARGET_SIGNAL_REALTIME_33 - && oursig <= TARGET_SIGNAL_REALTIME_63) - { - int retsig = - (int)oursig - (int)TARGET_SIGNAL_REALTIME_33 + REALTIME_LO; - if (retsig < REALTIME_HI) - return retsig; - } -#endif - /* The user might be trying to do "signal SIGSAK" where this system - doesn't have SIGSAK. */ - warning ("Signal %s does not exist on this system.\n", - target_signal_to_name (oursig)); - return 0; - } -} - -/* Helper function for child_wait and the Lynx derivatives of child_wait. - HOSTSTATUS is the waitstatus from wait() or the equivalent; store our - translation of that in OURSTATUS. */ -void -store_waitstatus (ourstatus, hoststatus) - struct target_waitstatus *ourstatus; - int hoststatus; -{ -#ifdef CHILD_SPECIAL_WAITSTATUS - /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS - if it wants to deal with hoststatus. */ - if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) - return; -#endif - - if (WIFEXITED (hoststatus)) - { - ourstatus->kind = TARGET_WAITKIND_EXITED; - ourstatus->value.integer = WEXITSTATUS (hoststatus); - } - else if (!WIFSTOPPED (hoststatus)) - { - ourstatus->kind = TARGET_WAITKIND_SIGNALLED; - ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); - } - else - { - ourstatus->kind = TARGET_WAITKIND_STOPPED; - ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); - } -} - -/* In some circumstances we allow a command to specify a numeric - signal. The idea is to keep these circumstances limited so that - users (and scripts) develop portable habits. For comparison, - POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a - numeric signal at all is obscelescent. We are slightly more - lenient and allow 1-15 which should match host signal numbers on - most systems. Use of symbolic signal names is strongly encouraged. */ - -enum target_signal -target_signal_from_command (num) - int num; -{ - if (num >= 1 && num <= 15) - return (enum target_signal)num; - error ("Only signals 1-15 are valid as numeric signals.\n\ -Use \"info signals\" for a list of symbolic signals."); -} - -/* Returns zero to leave the inferior alone, one to interrupt it. */ -int (*target_activity_function) PARAMS ((void)); -int target_activity_fd; - -/* Convert a normal process ID to a string. Returns the string in a static - buffer. */ - -char * -normal_pid_to_str (pid) - int pid; -{ - static char buf[30]; - - if (STREQ (current_target.to_shortname, "remote")) - sprintf (buf, "thread %d\0", pid); - else - sprintf (buf, "process %d\0", pid); - - return buf; -} - -/* Some targets (such as ttrace-based HPUX) don't allow us to request - notification of inferior events such as fork and vork immediately - after the inferior is created. (This because of how gdb gets an - inferior created via invoking a shell to do it. In such a scenario, - if the shell init file has commands in it, the shell will fork and - exec for each of those commands, and we will see each such fork - event. Very bad.) - - This function is used by all targets that allow us to request - notification of forks, etc at inferior creation time; e.g., in - target_acknowledge_forked_child. - */ -void -normal_target_post_startup_inferior (pid) - int pid; -{ - /* This space intentionally left blank. */ -} - - -#ifdef MAINTENANCE_CMDS -static struct target_ops debug_target; - -static void -debug_to_open (args, from_tty) - char *args; - int from_tty; -{ - debug_target.to_open (args, from_tty); - - fprintf_unfiltered (gdb_stderr, "target_open (%s, %d)\n", args, from_tty); -} - -static void -debug_to_close (quitting) - int quitting; -{ - debug_target.to_close (quitting); - - fprintf_unfiltered (gdb_stderr, "target_close (%d)\n", quitting); -} - -static void -debug_to_attach (args, from_tty) - char *args; - int from_tty; -{ - debug_target.to_attach (args, from_tty); - - fprintf_unfiltered (gdb_stderr, "target_attach (%s, %d)\n", args, from_tty); -} - - -static void -debug_to_post_attach (pid) - int pid; -{ - debug_target.to_post_attach (pid); - - fprintf_unfiltered (gdb_stderr, "target_post_attach (%d)\n", pid); -} - -static void -debug_to_require_attach (args, from_tty) - char *args; - int from_tty; -{ - debug_target.to_require_attach (args, from_tty); - - fprintf_unfiltered (gdb_stderr, - "target_require_attach (%s, %d)\n", args, from_tty); -} - -static void -debug_to_detach (args, from_tty) - char *args; - int from_tty; -{ - debug_target.to_detach (args, from_tty); - - fprintf_unfiltered (gdb_stderr, "target_detach (%s, %d)\n", args, from_tty); -} - -static void -debug_to_require_detach (pid, args, from_tty) - int pid; - char * args; - int from_tty; -{ - debug_target.to_require_detach (pid, args, from_tty); - - fprintf_unfiltered (gdb_stderr, - "target_require_detach (%d, %s, %d)\n", pid, args, from_tty); -} - -static void -debug_to_resume (pid, step, siggnal) - int pid; - int step; - enum target_signal siggnal; -{ - debug_target.to_resume (pid, step, siggnal); - - fprintf_unfiltered (gdb_stderr, "target_resume (%d, %s, %s)\n", pid, - step ? "step" : "continue", - target_signal_to_name (siggnal)); -} - -static int -debug_to_wait (pid, status) - int pid; - struct target_waitstatus *status; -{ - int retval; - - retval = debug_target.to_wait (pid, status); - - fprintf_unfiltered (gdb_stderr, - "target_wait (%d, status) = %d, ", pid, retval); - fprintf_unfiltered (gdb_stderr, "status->kind = "); - switch (status->kind) - { - case TARGET_WAITKIND_EXITED: - fprintf_unfiltered (gdb_stderr, "exited, status = %d\n", - status->value.integer); - break; - case TARGET_WAITKIND_STOPPED: - fprintf_unfiltered (gdb_stderr, "stopped, signal = %s\n", - target_signal_to_name (status->value.sig)); - break; - case TARGET_WAITKIND_SIGNALLED: - fprintf_unfiltered (gdb_stderr, "signalled, signal = %s\n", - target_signal_to_name (status->value.sig)); - break; - case TARGET_WAITKIND_LOADED: - fprintf_unfiltered (gdb_stderr, "loaded\n"); - break; - case TARGET_WAITKIND_FORKED: - fprintf_unfiltered (gdb_stderr, "forked\n"); - break; - case TARGET_WAITKIND_VFORKED: - fprintf_unfiltered (gdb_stderr, "vforked\n"); - break; - case TARGET_WAITKIND_EXECD: - fprintf_unfiltered (gdb_stderr, "execd\n"); - break; - case TARGET_WAITKIND_SPURIOUS: - fprintf_unfiltered (gdb_stderr, "spurious\n"); - break; - default: - fprintf_unfiltered (gdb_stderr, "unknown???\n"); - break; - } - - return retval; -} - -static void -debug_to_post_wait (pid, status) - int pid; - int status; -{ - debug_target.to_post_wait (pid, status); - - fprintf_unfiltered (gdb_stderr, "target_post_wait (%d, %d)\n", - pid, status); -} - -static void -debug_to_fetch_registers (regno) - int regno; -{ - debug_target.to_fetch_registers (regno); - - fprintf_unfiltered (gdb_stderr, "target_fetch_registers (%s)", - regno != -1 ? REGISTER_NAME (regno) : "-1"); - if (regno != -1) - fprintf_unfiltered (gdb_stderr, " = 0x%x %d", - (unsigned long) read_register (regno), - read_register (regno)); - fprintf_unfiltered (gdb_stderr, "\n"); -} - -static void -debug_to_store_registers (regno) - int regno; -{ - debug_target.to_store_registers (regno); - - if (regno >= 0 && regno < NUM_REGS) - fprintf_unfiltered (gdb_stderr, "target_store_registers (%s) = 0x%x %d\n", - REGISTER_NAME (regno), - (unsigned long) read_register (regno), - (unsigned long) read_register (regno)); - else - fprintf_unfiltered (gdb_stderr, "target_store_registers (%d)\n", regno); -} - -static void -debug_to_prepare_to_store () -{ - debug_target.to_prepare_to_store (); - - fprintf_unfiltered (gdb_stderr, "target_prepare_to_store ()\n"); -} - -static int -debug_to_xfer_memory (memaddr, myaddr, len, write, target) - CORE_ADDR memaddr; - char *myaddr; - int len; - int write; - struct target_ops *target; -{ - int retval; - - retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, target); - - fprintf_unfiltered (gdb_stderr, - "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", - (unsigned int) memaddr, /* possable truncate long long */ - len, write ? "write" : "read", retval); - - - - if (retval > 0) - { - int i; - - fputs_unfiltered (", bytes =", gdb_stderr); - for (i = 0; i < retval; i++) - { - if ((((long) &(myaddr[i])) & 0xf) == 0) - fprintf_unfiltered (gdb_stderr, "\n"); - fprintf_unfiltered (gdb_stderr, " %02x", myaddr[i] & 0xff); - } - } - - fputc_unfiltered ('\n', gdb_stderr); - - return retval; -} - -static void -debug_to_files_info (target) - struct target_ops *target; -{ - debug_target.to_files_info (target); - - fprintf_unfiltered (gdb_stderr, "target_files_info (xxx)\n"); -} - -static int -debug_to_insert_breakpoint (addr, save) - CORE_ADDR addr; - char *save; -{ - int retval; - - retval = debug_target.to_insert_breakpoint (addr, save); - - fprintf_unfiltered (gdb_stderr, - "target_insert_breakpoint (0x%x, xxx) = %d\n", - (unsigned long) addr, retval); - return retval; -} - -static int -debug_to_remove_breakpoint (addr, save) - CORE_ADDR addr; - char *save; -{ - int retval; - - retval = debug_target.to_remove_breakpoint (addr, save); - - fprintf_unfiltered (gdb_stderr, - "target_remove_breakpoint (0x%x, xxx) = %d\n", - (unsigned long)addr, retval); - return retval; -} - -static void -debug_to_terminal_init () -{ - debug_target.to_terminal_init (); - - fprintf_unfiltered (gdb_stderr, "target_terminal_init ()\n"); -} - -static void -debug_to_terminal_inferior () -{ - debug_target.to_terminal_inferior (); - - fprintf_unfiltered (gdb_stderr, "target_terminal_inferior ()\n"); -} - -static void -debug_to_terminal_ours_for_output () -{ - debug_target.to_terminal_ours_for_output (); - - fprintf_unfiltered (gdb_stderr, "target_terminal_ours_for_output ()\n"); -} - -static void -debug_to_terminal_ours () -{ - debug_target.to_terminal_ours (); - - fprintf_unfiltered (gdb_stderr, "target_terminal_ours ()\n"); -} - -static void -debug_to_terminal_info (arg, from_tty) - char *arg; - int from_tty; -{ - debug_target.to_terminal_info (arg, from_tty); - - fprintf_unfiltered (gdb_stderr, "target_terminal_info (%s, %d)\n", arg, - from_tty); -} - -static void -debug_to_kill () -{ - debug_target.to_kill (); - - fprintf_unfiltered (gdb_stderr, "target_kill ()\n"); -} - -static void -debug_to_load (args, from_tty) - char *args; - int from_tty; -{ - debug_target.to_load (args, from_tty); - - fprintf_unfiltered (gdb_stderr, "target_load (%s, %d)\n", args, from_tty); -} - -static int -debug_to_lookup_symbol (name, addrp) - char *name; - CORE_ADDR *addrp; -{ - int retval; - - retval = debug_target.to_lookup_symbol (name, addrp); - - fprintf_unfiltered (gdb_stderr, "target_lookup_symbol (%s, xxx)\n", name); - - return retval; -} - -static void -debug_to_create_inferior (exec_file, args, env) - char *exec_file; - char *args; - char **env; -{ - debug_target.to_create_inferior (exec_file, args, env); - - fprintf_unfiltered (gdb_stderr, "target_create_inferior (%s, %s, xxx)\n", - exec_file, args); -} - -static void -debug_to_post_startup_inferior (pid) - int pid; -{ - debug_target.to_post_startup_inferior (pid); - - fprintf_unfiltered (gdb_stderr, "target_post_startup_inferior (%d)\n", - pid); -} - -static void -debug_to_acknowledge_created_inferior (pid) - int pid; -{ - debug_target.to_acknowledge_created_inferior (pid); - - fprintf_unfiltered (gdb_stderr, "target_acknowledge_created_inferior (%d)\n", - pid); -} - -static void -debug_to_clone_and_follow_inferior (child_pid, followed_child) - int child_pid; - int *followed_child; -{ - debug_target.to_clone_and_follow_inferior (child_pid, followed_child); - - fprintf_unfiltered (gdb_stderr, - "target_clone_and_follow_inferior (%d, %d)\n", - child_pid, *followed_child); -} - -static void -debug_to_post_follow_inferior_by_clone () -{ - debug_target.to_post_follow_inferior_by_clone (); - - fprintf_unfiltered (gdb_stderr, "target_post_follow_inferior_by_clone ()\n"); -} - -static int -debug_to_insert_fork_catchpoint (pid) - int pid; -{ - int retval; - - retval = debug_target.to_insert_fork_catchpoint (pid); - - fprintf_unfiltered (gdb_stderr, "target_insert_fork_catchpoint (%d) = %d\n", - pid, retval); - - return retval; -} - -static int -debug_to_remove_fork_catchpoint (pid) - int pid; -{ - int retval; - - retval = debug_target.to_remove_fork_catchpoint (pid); - - fprintf_unfiltered (gdb_stderr, "target_remove_fork_catchpoint (%d) = %d\n", - pid, retval); - - return retval; -} - -static int -debug_to_insert_vfork_catchpoint (pid) - int pid; -{ - int retval; - - retval = debug_target.to_insert_vfork_catchpoint (pid); - - fprintf_unfiltered (gdb_stderr, "target_insert_vfork_catchpoint (%d)= %d\n", - pid, retval); - - return retval; -} - -static int -debug_to_remove_vfork_catchpoint (pid) - int pid; -{ - int retval; - - retval = debug_target.to_remove_vfork_catchpoint (pid); - - fprintf_unfiltered (gdb_stderr, "target_remove_vfork_catchpoint (%d) = %d\n", - pid, retval); - - return retval; -} - -static int -debug_to_has_forked (pid, child_pid) - int pid; - int * child_pid; -{ - int has_forked; - - has_forked = debug_target.to_has_forked (pid, child_pid); - - fprintf_unfiltered (gdb_stderr, "target_has_forked (%d, %d) = %d\n", - pid, *child_pid, has_forked); - - return has_forked; -} - -static int -debug_to_has_vforked (pid, child_pid) - int pid; - int * child_pid; -{ - int has_vforked; - - has_vforked = debug_target.to_has_vforked (pid, child_pid); - - fprintf_unfiltered (gdb_stderr, "target_has_vforked (%d, %d) = %d\n", - pid, *child_pid, has_vforked); - - return has_vforked; -} - -static int -debug_to_can_follow_vfork_prior_to_exec () -{ - int can_immediately_follow_vfork; - - can_immediately_follow_vfork = debug_target.to_can_follow_vfork_prior_to_exec (); - - fprintf_unfiltered (gdb_stderr, "target_can_follow_vfork_prior_to_exec () = %d\n", - can_immediately_follow_vfork); - - return can_immediately_follow_vfork; -} - -static void -debug_to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child) - int parent_pid; - int followed_parent; - int child_pid; - int followed_child; -{ - debug_target.to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child); - - fprintf_unfiltered (gdb_stderr, - "target_post_follow_vfork (%d, %d, %d, %d)\n", - parent_pid, followed_parent, child_pid, followed_child); -} - -static int -debug_to_insert_exec_catchpoint (pid) - int pid; -{ - int retval; - - retval = debug_target.to_insert_exec_catchpoint (pid); - - fprintf_unfiltered (gdb_stderr, "target_insert_exec_catchpoint (%d) = %d\n", - pid, retval); - - return retval; -} - -static int -debug_to_remove_exec_catchpoint (pid) - int pid; -{ - int retval; - - retval = debug_target.to_remove_exec_catchpoint (pid); - - fprintf_unfiltered (gdb_stderr, "target_remove_exec_catchpoint (%d) = %d\n", - pid, retval); - - return retval; -} - -static int -debug_to_has_execd (pid, execd_pathname) - int pid; - char ** execd_pathname; -{ - int has_execd; - - has_execd = debug_target.to_has_execd (pid, execd_pathname); - - fprintf_unfiltered (gdb_stderr, "target_has_execd (%d, %s) = %d\n", - pid, *execd_pathname, has_execd); - - return has_execd; -} - -static int -debug_to_reported_exec_events_per_exec_call () -{ - int reported_exec_events; - - reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); - - fprintf_unfiltered (gdb_stderr, - "target_reported_exec_events_per_exec_call () = %d\n", - reported_exec_events); - - return reported_exec_events; -} - -static int -debug_to_has_syscall_event (pid, kind, syscall_id) - int pid; - enum target_waitkind * kind; - int * syscall_id; -{ - int has_syscall_event; - char * kind_spelling = "??"; - - has_syscall_event = debug_target.to_has_syscall_event (pid, kind, syscall_id); - if (has_syscall_event) - { - switch (*kind) - { - case TARGET_WAITKIND_SYSCALL_ENTRY: - kind_spelling = "SYSCALL_ENTRY"; - break; - case TARGET_WAITKIND_SYSCALL_RETURN: - kind_spelling = "SYSCALL_RETURN"; - break; - default: - break; - } - } - - fprintf_unfiltered (gdb_stderr, - "target_has_syscall_event (%d, %s, %d) = %d\n", - pid, kind_spelling, *syscall_id, has_syscall_event); - - return has_syscall_event; -} - -static int -debug_to_has_exited (pid, wait_status, exit_status) - int pid; - int wait_status; - int * exit_status; -{ - int has_exited; - - has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); - - fprintf_unfiltered (gdb_stderr, "target_has_exited (%d, %d, %d) = %d\n", - pid, wait_status, *exit_status, has_exited); - - return has_exited; -} - -static void -debug_to_mourn_inferior () -{ - debug_target.to_mourn_inferior (); - - fprintf_unfiltered (gdb_stderr, "target_mourn_inferior ()\n"); -} - -static int -debug_to_can_run () -{ - int retval; - - retval = debug_target.to_can_run (); - - fprintf_unfiltered (gdb_stderr, "target_can_run () = %d\n", retval); - - return retval; -} - -static void -debug_to_notice_signals (pid) - int pid; -{ - debug_target.to_notice_signals (pid); - - fprintf_unfiltered (gdb_stderr, "target_notice_signals (%d)\n", pid); -} - -static int -debug_to_thread_alive (pid) - int pid; -{ - int retval; - - retval = debug_target.to_thread_alive (pid); - - fprintf_unfiltered (gdb_stderr, "target_thread_alive (%d) = %d\n", - pid, retval); - - return retval; -} - -static void -debug_to_stop () -{ - debug_target.to_stop (); - - fprintf_unfiltered (gdb_stderr, "target_stop ()\n"); -} - -static int -debug_to_query (type, req, resp, siz) - char type; - char *req; - char *resp; - int *siz; -{ - int retval; - - retval = debug_target.to_query (type, req, resp, siz); - - fprintf_unfiltered (gdb_stderr, "target_query (%c, %s, %s, %d) = %d\n", type, req, resp, *siz, retval); - - return retval; -} - -static struct symtab_and_line * -debug_to_enable_exception_callback (kind, enable) - enum exception_event_kind kind; - int enable; -{ - debug_target.to_enable_exception_callback (kind, enable); - - fprintf_unfiltered (gdb_stderr, - "target get_exception_callback_sal (%d, %d)\n", - kind, enable); -} - -static struct exception_event_record * -debug_to_get_current_exception_event () -{ - debug_target.to_get_current_exception_event(); - - fprintf_unfiltered (gdb_stderr, "target get_current_exception_event ()\n"); -} - -static char * -debug_to_pid_to_exec_file (pid) - int pid; -{ - char * exec_file; - - exec_file = debug_target.to_pid_to_exec_file (pid); - - fprintf_unfiltered (gdb_stderr, "target_pid_to_exec_file (%d) = %s\n", - pid, exec_file); - - return exec_file; -} - -static char * -debug_to_core_file_to_sym_file (core) - char * core; -{ - char * sym_file; - - sym_file = debug_target.to_core_file_to_sym_file (core); - - fprintf_unfiltered (gdb_stderr, "target_core_file_to_sym_file (%s) = %s\n", - core, sym_file); - - return sym_file; -} - -static void -setup_target_debug () -{ - memcpy (&debug_target, ¤t_target, sizeof debug_target); - - current_target.to_open = debug_to_open; - current_target.to_close = debug_to_close; - current_target.to_attach = debug_to_attach; - current_target.to_post_attach = debug_to_post_attach; - current_target.to_require_attach = debug_to_require_attach; - current_target.to_detach = debug_to_detach; - current_target.to_require_detach = debug_to_require_detach; - current_target.to_resume = debug_to_resume; - current_target.to_wait = debug_to_wait; - current_target.to_post_wait = debug_to_post_wait; - current_target.to_fetch_registers = debug_to_fetch_registers; - current_target.to_store_registers = debug_to_store_registers; - current_target.to_prepare_to_store = debug_to_prepare_to_store; - current_target.to_xfer_memory = debug_to_xfer_memory; - current_target.to_files_info = debug_to_files_info; - current_target.to_insert_breakpoint = debug_to_insert_breakpoint; - current_target.to_remove_breakpoint = debug_to_remove_breakpoint; - current_target.to_terminal_init = debug_to_terminal_init; - current_target.to_terminal_inferior = debug_to_terminal_inferior; - current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; - current_target.to_terminal_ours = debug_to_terminal_ours; - current_target.to_terminal_info = debug_to_terminal_info; - current_target.to_kill = debug_to_kill; - current_target.to_load = debug_to_load; - current_target.to_lookup_symbol = debug_to_lookup_symbol; - current_target.to_create_inferior = debug_to_create_inferior; - current_target.to_post_startup_inferior = debug_to_post_startup_inferior; - current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; - current_target.to_clone_and_follow_inferior = debug_to_clone_and_follow_inferior; - current_target.to_post_follow_inferior_by_clone = debug_to_post_follow_inferior_by_clone; - current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; - current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; - current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; - current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; - current_target.to_has_forked = debug_to_has_forked; - current_target.to_has_vforked = debug_to_has_vforked; - current_target.to_can_follow_vfork_prior_to_exec = debug_to_can_follow_vfork_prior_to_exec; - current_target.to_post_follow_vfork = debug_to_post_follow_vfork; - current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; - current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; - current_target.to_has_execd = debug_to_has_execd; - current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; - current_target.to_has_syscall_event = debug_to_has_syscall_event; - current_target.to_has_exited = debug_to_has_exited; - current_target.to_mourn_inferior = debug_to_mourn_inferior; - current_target.to_can_run = debug_to_can_run; - current_target.to_notice_signals = debug_to_notice_signals; - current_target.to_thread_alive = debug_to_thread_alive; - current_target.to_stop = debug_to_stop; - current_target.to_query = debug_to_query; - current_target.to_enable_exception_callback = debug_to_enable_exception_callback; - current_target.to_get_current_exception_event = debug_to_get_current_exception_event; - current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; - current_target.to_core_file_to_sym_file = debug_to_core_file_to_sym_file; - -} -#endif /* MAINTENANCE_CMDS */ - -static char targ_desc[] = - "Names of targets and files being debugged.\n\ -Shows the entire stack of targets currently in use (including the exec-file,\n\ -core-file, and process, if any), as well as the symbol file name."; - -void -initialize_targets () -{ - push_target (&dummy_target); - - add_info ("target", target_info, targ_desc); - add_info ("files", target_info, targ_desc); - -#ifdef MAINTENANCE_CMDS - add_show_from_set ( - add_set_cmd ("targetdebug", class_maintenance, var_zinteger, - (char *)&targetdebug, - "Set target debugging.\n\ -When non-zero, target debugging is enabled.", &setlist), - &showlist); -#endif - - if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC")) - abort (); -} -- cgit v1.1