| /* Interface between GDB and target environments, including files and processes |
| Copyright 1990, 91, 92, 93, 94, 1999 Free Software Foundation, Inc. |
| Contributed by Cygnus Support. Written by John Gilmore. |
| |
| 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. */ |
| |
| #if !defined (TARGET_H) |
| #define TARGET_H |
| |
| /* This include file defines the interface between the main part |
| of the debugger, and the part which is target-specific, or |
| specific to the communications interface between us and the |
| target. |
| |
| A TARGET is an interface between the debugger and a particular |
| kind of file or process. Targets can be STACKED in STRATA, |
| so that more than one target can potentially respond to a request. |
| In particular, memory accesses will walk down the stack of targets |
| until they find a target that is interested in handling that particular |
| address. STRATA are artificial boundaries on the stack, within |
| which particular kinds of targets live. Strata exist so that |
| people don't get confused by pushing e.g. a process target and then |
| a file target, and wondering why they can't see the current values |
| of variables any more (the file target is handling them and they |
| never get to the process target). So when you push a file target, |
| it goes into the file stratum, which is always below the process |
| stratum. */ |
| |
| #include "bfd.h" |
| #include "symtab.h" |
| |
| enum strata { |
| dummy_stratum, /* The lowest of the low */ |
| file_stratum, /* Executable files, etc */ |
| core_stratum, /* Core dump files */ |
| download_stratum, /* Downloading of remote targets */ |
| process_stratum /* Executing processes */ |
| }; |
| |
| enum thread_control_capabilities { |
| tc_none = 0, /* Default: can't control thread execution. */ |
| tc_schedlock = 1, /* Can lock the thread scheduler. */ |
| tc_switch = 2 /* Can switch the running thread on demand. */ |
| }; |
| |
| /* Stuff for target_wait. */ |
| |
| /* Generally, what has the program done? */ |
| enum target_waitkind { |
| /* The program has exited. The exit status is in value.integer. */ |
| TARGET_WAITKIND_EXITED, |
| |
| /* The program has stopped with a signal. Which signal is in value.sig. */ |
| TARGET_WAITKIND_STOPPED, |
| |
| /* The program has terminated with a signal. Which signal is in |
| value.sig. */ |
| TARGET_WAITKIND_SIGNALLED, |
| |
| /* The program is letting us know that it dynamically loaded something |
| (e.g. it called load(2) on AIX). */ |
| TARGET_WAITKIND_LOADED, |
| |
| /* The program has forked. A "related" process' ID is in value.related_pid. |
| I.e., if the child forks, value.related_pid is the parent's ID. |
| */ |
| TARGET_WAITKIND_FORKED, |
| |
| /* The program has vforked. A "related" process's ID is in value.related_pid. |
| */ |
| TARGET_WAITKIND_VFORKED, |
| |
| /* The program has exec'ed a new executable file. The new file's pathname |
| is pointed to by value.execd_pathname. |
| */ |
| TARGET_WAITKIND_EXECD, |
| |
| /* The program has entered or returned from a system call. On HP-UX, this |
| is used in the hardware watchpoint implementation. The syscall's unique |
| integer ID number is in value.syscall_id; |
| */ |
| TARGET_WAITKIND_SYSCALL_ENTRY, |
| TARGET_WAITKIND_SYSCALL_RETURN, |
| |
| /* Nothing happened, but we stopped anyway. This perhaps should be handled |
| within target_wait, but I'm not sure target_wait should be resuming the |
| inferior. */ |
| TARGET_WAITKIND_SPURIOUS |
| }; |
| |
| /* The numbering of these signals is chosen to match traditional unix |
| signals (insofar as various unices use the same numbers, anyway). |
| It is also the numbering of the GDB remote protocol. Other remote |
| protocols, if they use a different numbering, should make sure to |
| translate appropriately. |
| |
| Since these numbers have actually made it out into other software |
| (stubs, etc.), you mustn't disturb the assigned numbering. If you |
| need to add new signals here, add them to the end of the explicitly |
| numbered signals. |
| |
| This is based strongly on Unix/POSIX signals for several reasons: |
| (1) This set of signals represents a widely-accepted attempt to |
| represent events of this sort in a portable fashion, (2) we want a |
| signal to make it from wait to child_wait to the user intact, (3) many |
| remote protocols use a similar encoding. However, it is |
| recognized that this set of signals has limitations (such as not |
| distinguishing between various kinds of SIGSEGV, or not |
| distinguishing hitting a breakpoint from finishing a single step). |
| So in the future we may get around this either by adding additional |
| signals for breakpoint, single-step, etc., or by adding signal |
| codes; the latter seems more in the spirit of what BSD, System V, |
| etc. are doing to address these issues. */ |
| |
| /* For an explanation of what each signal means, see |
| target_signal_to_string. */ |
| |
| enum target_signal { |
| /* Used some places (e.g. stop_signal) to record the concept that |
| there is no signal. */ |
| TARGET_SIGNAL_0 = 0, |
| TARGET_SIGNAL_FIRST = 0, |
| TARGET_SIGNAL_HUP = 1, |
| TARGET_SIGNAL_INT = 2, |
| TARGET_SIGNAL_QUIT = 3, |
| TARGET_SIGNAL_ILL = 4, |
| TARGET_SIGNAL_TRAP = 5, |
| TARGET_SIGNAL_ABRT = 6, |
| TARGET_SIGNAL_EMT = 7, |
| TARGET_SIGNAL_FPE = 8, |
| TARGET_SIGNAL_KILL = 9, |
| TARGET_SIGNAL_BUS = 10, |
| TARGET_SIGNAL_SEGV = 11, |
| TARGET_SIGNAL_SYS = 12, |
| TARGET_SIGNAL_PIPE = 13, |
| TARGET_SIGNAL_ALRM = 14, |
| TARGET_SIGNAL_TERM = 15, |
| TARGET_SIGNAL_URG = 16, |
| TARGET_SIGNAL_STOP = 17, |
| TARGET_SIGNAL_TSTP = 18, |
| TARGET_SIGNAL_CONT = 19, |
| TARGET_SIGNAL_CHLD = 20, |
| TARGET_SIGNAL_TTIN = 21, |
| TARGET_SIGNAL_TTOU = 22, |
| TARGET_SIGNAL_IO = 23, |
| TARGET_SIGNAL_XCPU = 24, |
| TARGET_SIGNAL_XFSZ = 25, |
| TARGET_SIGNAL_VTALRM = 26, |
| TARGET_SIGNAL_PROF = 27, |
| TARGET_SIGNAL_WINCH = 28, |
| TARGET_SIGNAL_LOST = 29, |
| TARGET_SIGNAL_USR1 = 30, |
| TARGET_SIGNAL_USR2 = 31, |
| TARGET_SIGNAL_PWR = 32, |
| /* Similar to SIGIO. Perhaps they should have the same number. */ |
| TARGET_SIGNAL_POLL = 33, |
| TARGET_SIGNAL_WIND = 34, |
| TARGET_SIGNAL_PHONE = 35, |
| TARGET_SIGNAL_WAITING = 36, |
| TARGET_SIGNAL_LWP = 37, |
| TARGET_SIGNAL_DANGER = 38, |
| TARGET_SIGNAL_GRANT = 39, |
| TARGET_SIGNAL_RETRACT = 40, |
| TARGET_SIGNAL_MSG = 41, |
| TARGET_SIGNAL_SOUND = 42, |
| TARGET_SIGNAL_SAK = 43, |
| TARGET_SIGNAL_PRIO = 44, |
| TARGET_SIGNAL_REALTIME_33 = 45, |
| TARGET_SIGNAL_REALTIME_34 = 46, |
| TARGET_SIGNAL_REALTIME_35 = 47, |
| TARGET_SIGNAL_REALTIME_36 = 48, |
| TARGET_SIGNAL_REALTIME_37 = 49, |
| TARGET_SIGNAL_REALTIME_38 = 50, |
| TARGET_SIGNAL_REALTIME_39 = 51, |
| TARGET_SIGNAL_REALTIME_40 = 52, |
| TARGET_SIGNAL_REALTIME_41 = 53, |
| TARGET_SIGNAL_REALTIME_42 = 54, |
| TARGET_SIGNAL_REALTIME_43 = 55, |
| TARGET_SIGNAL_REALTIME_44 = 56, |
| TARGET_SIGNAL_REALTIME_45 = 57, |
| TARGET_SIGNAL_REALTIME_46 = 58, |
| TARGET_SIGNAL_REALTIME_47 = 59, |
| TARGET_SIGNAL_REALTIME_48 = 60, |
| TARGET_SIGNAL_REALTIME_49 = 61, |
| TARGET_SIGNAL_REALTIME_50 = 62, |
| TARGET_SIGNAL_REALTIME_51 = 63, |
| TARGET_SIGNAL_REALTIME_52 = 64, |
| TARGET_SIGNAL_REALTIME_53 = 65, |
| TARGET_SIGNAL_REALTIME_54 = 66, |
| TARGET_SIGNAL_REALTIME_55 = 67, |
| TARGET_SIGNAL_REALTIME_56 = 68, |
| TARGET_SIGNAL_REALTIME_57 = 69, |
| TARGET_SIGNAL_REALTIME_58 = 70, |
| TARGET_SIGNAL_REALTIME_59 = 71, |
| TARGET_SIGNAL_REALTIME_60 = 72, |
| TARGET_SIGNAL_REALTIME_61 = 73, |
| TARGET_SIGNAL_REALTIME_62 = 74, |
| TARGET_SIGNAL_REALTIME_63 = 75, |
| |
| /* Used internally by Solaris threads. See signal(5) on Solaris. */ |
| TARGET_SIGNAL_CANCEL = 76, |
| |
| #if defined(MACH) || defined(__MACH__) |
| /* Mach exceptions */ |
| TARGET_EXC_BAD_ACCESS, |
| TARGET_EXC_BAD_INSTRUCTION, |
| TARGET_EXC_ARITHMETIC, |
| TARGET_EXC_EMULATION, |
| TARGET_EXC_SOFTWARE, |
| TARGET_EXC_BREAKPOINT, |
| #endif |
| TARGET_SIGNAL_INFO, |
| |
| /* Some signal we don't know about. */ |
| TARGET_SIGNAL_UNKNOWN, |
| |
| /* Use whatever signal we use when one is not specifically specified |
| (for passing to proceed and so on). */ |
| TARGET_SIGNAL_DEFAULT, |
| |
| /* Last and unused enum value, for sizing arrays, etc. */ |
| TARGET_SIGNAL_LAST |
| }; |
| |
| struct target_waitstatus { |
| enum target_waitkind kind; |
| |
| /* Forked child pid, execd pathname, exit status or signal number. */ |
| union { |
| int integer; |
| enum target_signal sig; |
| int related_pid; |
| char * execd_pathname; |
| int syscall_id; |
| } value; |
| }; |
| |
| /* Return the string for a signal. */ |
| extern char *target_signal_to_string PARAMS ((enum target_signal)); |
| |
| /* Return the name (SIGHUP, etc.) for a signal. */ |
| extern char *target_signal_to_name PARAMS ((enum target_signal)); |
| |
| /* Given a name (SIGHUP, etc.), return its signal. */ |
| enum target_signal target_signal_from_name PARAMS ((char *)); |
| |
| |
| /* If certain kinds of activity happen, target_wait should perform |
| callbacks. */ |
| /* Right now we just call (*TARGET_ACTIVITY_FUNCTION) if I/O is possible |
| on TARGET_ACTIVITY_FD. */ |
| extern int target_activity_fd; |
| /* Returns zero to leave the inferior alone, one to interrupt it. */ |
| extern int (*target_activity_function) PARAMS ((void)); |
| |
| struct target_ops |
| { |
| char *to_shortname; /* Name this target type */ |
| char *to_longname; /* Name for printing */ |
| char *to_doc; /* Documentation. Does not include trailing |
| newline, and starts with a one-line descrip- |
| tion (probably similar to to_longname). */ |
| void (*to_open) PARAMS ((char *, int)); |
| void (*to_close) PARAMS ((int)); |
| void (*to_attach) PARAMS ((char *, int)); |
| void (*to_post_attach) PARAMS ((int)); |
| void (*to_require_attach) PARAMS ((char *, int)); |
| void (*to_detach) PARAMS ((char *, int)); |
| void (*to_require_detach) PARAMS ((int, char *, int)); |
| void (*to_resume) PARAMS ((int, int, enum target_signal)); |
| int (*to_wait) PARAMS ((int, struct target_waitstatus *)); |
| void (*to_post_wait) PARAMS ((int, int)); |
| void (*to_fetch_registers) PARAMS ((int)); |
| void (*to_store_registers) PARAMS ((int)); |
| void (*to_prepare_to_store) PARAMS ((void)); |
| |
| /* Transfer LEN bytes of memory between GDB address MYADDR and |
| target address MEMADDR. If WRITE, transfer them to the target, else |
| transfer them from the target. TARGET is the target from which we |
| get this function. |
| |
| Return value, N, is one of the following: |
| |
| 0 means that we can't handle this. If errno has been set, it is the |
| error which prevented us from doing it (FIXME: What about bfd_error?). |
| |
| positive (call it N) means that we have transferred N bytes |
| starting at MEMADDR. We might be able to handle more bytes |
| beyond this length, but no promises. |
| |
| negative (call its absolute value N) means that we cannot |
| transfer right at MEMADDR, but we could transfer at least |
| something at MEMADDR + N. */ |
| |
| int (*to_xfer_memory) PARAMS ((CORE_ADDR memaddr, char *myaddr, |
| int len, int write, |
| struct target_ops * target)); |
| |
| #if 0 |
| /* Enable this after 4.12. */ |
| |
| /* Search target memory. Start at STARTADDR and take LEN bytes of |
| target memory, and them with MASK, and compare to DATA. If they |
| match, set *ADDR_FOUND to the address we found it at, store the data |
| we found at LEN bytes starting at DATA_FOUND, and return. If |
| not, add INCREMENT to the search address and keep trying until |
| the search address is outside of the range [LORANGE,HIRANGE). |
| |
| If we don't find anything, set *ADDR_FOUND to (CORE_ADDR)0 and return. */ |
| void (*to_search) PARAMS ((int len, char *data, char *mask, |
| CORE_ADDR startaddr, int increment, |
| CORE_ADDR lorange, CORE_ADDR hirange, |
| CORE_ADDR *addr_found, char *data_found)); |
| |
| #define target_search(len, data, mask, startaddr, increment, lorange, hirange, addr_found, data_found) \ |
| (*current_target.to_search) (len, data, mask, startaddr, increment, \ |
| lorange, hirange, addr_found, data_found) |
| #endif /* 0 */ |
| |
| void (*to_files_info) PARAMS ((struct target_ops *)); |
| int (*to_insert_breakpoint) PARAMS ((CORE_ADDR, char *)); |
| int (*to_remove_breakpoint) PARAMS ((CORE_ADDR, char *)); |
| void (*to_terminal_init) PARAMS ((void)); |
| void (*to_terminal_inferior) PARAMS ((void)); |
| void (*to_terminal_ours_for_output) PARAMS ((void)); |
| void (*to_terminal_ours) PARAMS ((void)); |
| void (*to_terminal_info) PARAMS ((char *, int)); |
| void (*to_kill) PARAMS ((void)); |
| void (*to_load) PARAMS ((char *, int)); |
| int (*to_lookup_symbol) PARAMS ((char *, CORE_ADDR *)); |
| void (*to_create_inferior) PARAMS ((char *, char *, char **)); |
| void (*to_post_startup_inferior) PARAMS ((int)); |
| void (*to_acknowledge_created_inferior) PARAMS ((int)); |
| void (*to_clone_and_follow_inferior) PARAMS ((int, int *)); |
| void (*to_post_follow_inferior_by_clone) PARAMS ((void)); |
| int (*to_insert_fork_catchpoint) PARAMS ((int)); |
| int (*to_remove_fork_catchpoint) PARAMS ((int)); |
| int (*to_insert_vfork_catchpoint) PARAMS ((int)); |
| int (*to_remove_vfork_catchpoint) PARAMS ((int)); |
| int (*to_has_forked) PARAMS ((int, int *)); |
| int (*to_has_vforked) PARAMS ((int, int *)); |
| int (*to_can_follow_vfork_prior_to_exec) PARAMS ((void)); |
| void (*to_post_follow_vfork) PARAMS ((int, int, int, int)); |
| int (*to_insert_exec_catchpoint) PARAMS ((int)); |
| int (*to_remove_exec_catchpoint) PARAMS ((int)); |
| int (*to_has_execd) PARAMS ((int, char **)); |
| int (*to_reported_exec_events_per_exec_call) PARAMS ((void)); |
| int (*to_has_syscall_event) PARAMS ((int, enum target_waitkind *, int *)); |
| int (*to_has_exited) PARAMS ((int, int, int *)); |
| void (*to_mourn_inferior) PARAMS ((void)); |
| int (*to_can_run) PARAMS ((void)); |
| void (*to_notice_signals) PARAMS ((int pid)); |
| int (*to_thread_alive) PARAMS ((int pid)); |
| void (*to_find_new_threads) PARAMS ((void)); |
| void (*to_stop) PARAMS ((void)); |
| int (*to_query) PARAMS ((int/*char*/, char *, char *, int *)); |
| struct symtab_and_line * (*to_enable_exception_callback) PARAMS ((enum exception_event_kind, int)); |
| struct exception_event_record * (*to_get_current_exception_event) PARAMS ((void)); |
| char * (*to_pid_to_exec_file) PARAMS ((int pid)); |
| char * (*to_core_file_to_sym_file) PARAMS ((char *)); |
| enum strata to_stratum; |
| struct target_ops |
| *DONT_USE; /* formerly to_next */ |
| int to_has_all_memory; |
| int to_has_memory; |
| int to_has_stack; |
| int to_has_registers; |
| int to_has_execution; |
| int to_has_thread_control; /* control thread execution */ |
| int to_has_async_exec; |
| struct section_table |
| *to_sections; |
| struct section_table |
| *to_sections_end; |
| int to_magic; |
| /* Need sub-structure for target machine related rather than comm related? */ |
| }; |
| |
| /* Magic number for checking ops size. If a struct doesn't end with this |
| number, somebody changed the declaration but didn't change all the |
| places that initialize one. */ |
| |
| #define OPS_MAGIC 3840 |
| |
| /* The ops structure for our "current" target process. This should |
| never be NULL. If there is no target, it points to the dummy_target. */ |
| |
| extern struct target_ops current_target; |
| |
| /* An item on the target stack. */ |
| |
| struct target_stack_item |
| { |
| struct target_stack_item *next; |
| struct target_ops *target_ops; |
| }; |
| |
| /* The target stack. */ |
| |
| extern struct target_stack_item *target_stack; |
| |
| /* Define easy words for doing these operations on our current target. */ |
| |
| #define target_shortname (current_target.to_shortname) |
| #define target_longname (current_target.to_longname) |
| |
| /* The open routine takes the rest of the parameters from the command, |
| and (if successful) pushes a new target onto the stack. |
| Targets should supply this routine, if only to provide an error message. */ |
| #define target_open(name, from_tty) \ |
| (*current_target.to_open) (name, from_tty) |
| |
| /* Does whatever cleanup is required for a target that we are no longer |
| going to be calling. Argument says whether we are quitting gdb and |
| should not get hung in case of errors, or whether we want a clean |
| termination even if it takes a while. This routine is automatically |
| always called just before a routine is popped off the target stack. |
| Closing file descriptors and freeing memory are typical things it should |
| do. */ |
| |
| #define target_close(quitting) \ |
| (*current_target.to_close) (quitting) |
| |
| /* Attaches to a process on the target side. Arguments are as passed |
| to the `attach' command by the user. This routine can be called |
| when the target is not on the target-stack, if the target_can_run |
| routine returns 1; in that case, it must push itself onto the stack. |
| Upon exit, the target should be ready for normal operations, and |
| should be ready to deliver the status of the process immediately |
| (without waiting) to an upcoming target_wait call. */ |
| |
| #define target_attach(args, from_tty) \ |
| (*current_target.to_attach) (args, from_tty) |
| |
| /* The target_attach operation places a process under debugger control, |
| and stops the process. |
| |
| This operation provides a target-specific hook that allows the |
| necessary bookkeeping to be performed after an attach completes. |
| */ |
| #define target_post_attach(pid) \ |
| (*current_target.to_post_attach) (pid) |
| |
| /* Attaches to a process on the target side, if not already attached. |
| (If already attached, takes no action.) |
| |
| This operation can be used to follow the child process of a fork. |
| On some targets, such child processes of an original inferior process |
| are automatically under debugger control, and thus do not require an |
| actual attach operation. */ |
| |
| #define target_require_attach(args, from_tty) \ |
| (*current_target.to_require_attach) (args, from_tty) |
| |
| /* Takes a program previously attached to and detaches it. |
| The program may resume execution (some targets do, some don't) and will |
| no longer stop on signals, etc. We better not have left any breakpoints |
| in the program or it'll die when it hits one. ARGS is arguments |
| typed by the user (e.g. a signal to send the process). FROM_TTY |
| says whether to be verbose or not. */ |
| |
| extern void |
| target_detach PARAMS ((char *, int)); |
| |
| /* Detaches from a process on the target side, if not already dettached. |
| (If already detached, takes no action.) |
| |
| This operation can be used to follow the parent process of a fork. |
| On some targets, such child processes of an original inferior process |
| are automatically under debugger control, and thus do require an actual |
| detach operation. |
| |
| PID is the process id of the child to detach from. |
| ARGS is arguments typed by the user (e.g. a signal to send the process). |
| FROM_TTY says whether to be verbose or not. */ |
| |
| #define target_require_detach(pid, args, from_tty) \ |
| (*current_target.to_require_detach) (pid, args, from_tty) |
| |
| /* Resume execution of the target process PID. STEP says whether to |
| single-step or to run free; SIGGNAL is the signal to be given to |
| the target, or TARGET_SIGNAL_0 for no signal. The caller may not |
| pass TARGET_SIGNAL_DEFAULT. */ |
| |
| #define target_resume(pid, step, siggnal) \ |
| (*current_target.to_resume) (pid, step, siggnal) |
| |
| /* Wait for process pid to do something. Pid = -1 to wait for any pid |
| to do something. Return pid of child, or -1 in case of error; |
| store status through argument pointer STATUS. Note that it is |
| *not* OK to return_to_top_level out of target_wait without popping |
| the debugging target from the stack; GDB isn't prepared to get back |
| to the prompt with a debugging target but without the frame cache, |
| stop_pc, etc., set up. */ |
| |
| #define target_wait(pid, status) \ |
| (*current_target.to_wait) (pid, status) |
| |
| /* The target_wait operation waits for a process event to occur, and |
| thereby stop the process. |
| |
| On some targets, certain events may happen in sequences. gdb's |
| correct response to any single event of such a sequence may require |
| knowledge of what earlier events in the sequence have been seen. |
| |
| This operation provides a target-specific hook that allows the |
| necessary bookkeeping to be performed to track such sequences. |
| */ |
| |
| #define target_post_wait(pid, status) \ |
| (*current_target.to_post_wait) (pid, status) |
| |
| /* Fetch register REGNO, or all regs if regno == -1. No result. */ |
| |
| #define target_fetch_registers(regno) \ |
| (*current_target.to_fetch_registers) (regno) |
| |
| /* Store at least register REGNO, or all regs if REGNO == -1. |
| It can store as many registers as it wants to, so target_prepare_to_store |
| must have been previously called. Calls error() if there are problems. */ |
| |
| #define target_store_registers(regs) \ |
| (*current_target.to_store_registers) (regs) |
| |
| /* Get ready to modify the registers array. On machines which store |
| individual registers, this doesn't need to do anything. On machines |
| which store all the registers in one fell swoop, this makes sure |
| that REGISTERS contains all the registers from the program being |
| debugged. */ |
| |
| #define target_prepare_to_store() \ |
| (*current_target.to_prepare_to_store) () |
| |
| extern int target_read_string PARAMS ((CORE_ADDR, char **, int, int *)); |
| |
| extern int |
| target_read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len)); |
| |
| extern int |
| target_read_memory_section PARAMS ((CORE_ADDR memaddr, char *myaddr, int len, |
| asection *bfd_section)); |
| |
| extern int |
| target_read_memory_partial PARAMS ((CORE_ADDR, char *, int, int *)); |
| |
| extern int |
| target_write_memory PARAMS ((CORE_ADDR, char *, int)); |
| |
| extern int |
| xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *)); |
| |
| extern int |
| child_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *)); |
| |
| extern char * |
| child_pid_to_exec_file PARAMS ((int)); |
| |
| extern char * |
| child_core_file_to_sym_file PARAMS ((char *)); |
| |
| #if defined(CHILD_POST_ATTACH) |
| extern void |
| child_post_attach PARAMS ((int)); |
| #endif |
| |
| extern void |
| child_post_wait PARAMS ((int, int)); |
| |
| extern void |
| child_post_startup_inferior PARAMS ((int)); |
| |
| extern void |
| child_acknowledge_created_inferior PARAMS ((int)); |
| |
| extern void |
| child_clone_and_follow_inferior PARAMS ((int, int *)); |
| |
| extern void |
| child_post_follow_inferior_by_clone PARAMS ((void)); |
| |
| extern int |
| child_insert_fork_catchpoint PARAMS ((int)); |
| |
| extern int |
| child_remove_fork_catchpoint PARAMS ((int)); |
| |
| extern int |
| child_insert_vfork_catchpoint PARAMS ((int)); |
| |
| extern int |
| child_remove_vfork_catchpoint PARAMS ((int)); |
| |
| extern int |
| child_has_forked PARAMS ((int, int *)); |
| |
| extern int |
| child_has_vforked PARAMS ((int, int *)); |
| |
| extern void |
| child_acknowledge_created_inferior PARAMS ((int)); |
| |
| extern int |
| child_can_follow_vfork_prior_to_exec PARAMS ((void)); |
| |
| extern void |
| child_post_follow_vfork PARAMS ((int, int, int, int)); |
| |
| extern int |
| child_insert_exec_catchpoint PARAMS ((int)); |
| |
| extern int |
| child_remove_exec_catchpoint PARAMS ((int)); |
| |
| extern int |
| child_has_execd PARAMS ((int, char **)); |
| |
| extern int |
| child_reported_exec_events_per_exec_call PARAMS ((void)); |
| |
| extern int |
| child_has_syscall_event PARAMS ((int, enum target_waitkind *, int *)); |
| |
| extern int |
| child_has_exited PARAMS ((int, int, int *)); |
| |
| extern int |
| child_thread_alive PARAMS ((int)); |
| |
| /* From exec.c */ |
| |
| extern void |
| print_section_info PARAMS ((struct target_ops *, bfd *)); |
| |
| /* Print a line about the current target. */ |
| |
| #define target_files_info() \ |
| (*current_target.to_files_info) (¤t_target) |
| |
| /* Insert a breakpoint at address ADDR in the target machine. |
| SAVE is a pointer to memory allocated for saving the |
| target contents. It is guaranteed by the caller to be long enough |
| to save "sizeof BREAKPOINT" bytes. Result is 0 for success, or |
| an errno value. */ |
| |
| #define target_insert_breakpoint(addr, save) \ |
| (*current_target.to_insert_breakpoint) (addr, save) |
| |
| /* Remove a breakpoint at address ADDR in the target machine. |
| SAVE is a pointer to the same save area |
| that was previously passed to target_insert_breakpoint. |
| Result is 0 for success, or an errno value. */ |
| |
| #define target_remove_breakpoint(addr, save) \ |
| (*current_target.to_remove_breakpoint) (addr, save) |
| |
| /* Initialize the terminal settings we record for the inferior, |
| before we actually run the inferior. */ |
| |
| #define target_terminal_init() \ |
| (*current_target.to_terminal_init) () |
| |
| /* Put the inferior's terminal settings into effect. |
| This is preparation for starting or resuming the inferior. */ |
| |
| #define target_terminal_inferior() \ |
| (*current_target.to_terminal_inferior) () |
| |
| /* Put some of our terminal settings into effect, |
| enough to get proper results from our output, |
| but do not change into or out of RAW mode |
| so that no input is discarded. |
| |
| After doing this, either terminal_ours or terminal_inferior |
| should be called to get back to a normal state of affairs. */ |
| |
| #define target_terminal_ours_for_output() \ |
| (*current_target.to_terminal_ours_for_output) () |
| |
| /* Put our terminal settings into effect. |
| First record the inferior's terminal settings |
| so they can be restored properly later. */ |
| |
| #define target_terminal_ours() \ |
| (*current_target.to_terminal_ours) () |
| |
| /* Print useful information about our terminal status, if such a thing |
| exists. */ |
| |
| #define target_terminal_info(arg, from_tty) \ |
| (*current_target.to_terminal_info) (arg, from_tty) |
| |
| /* Kill the inferior process. Make it go away. */ |
| |
| #define target_kill() \ |
| (*current_target.to_kill) () |
| |
| /* Load an executable file into the target process. This is expected to |
| not only bring new code into the target process, but also to update |
| GDB's symbol tables to match. */ |
| |
| #define target_load(arg, from_tty) \ |
| (*current_target.to_load) (arg, from_tty) |
| |
| /* Look up a symbol in the target's symbol table. NAME is the symbol |
| name. ADDRP is a CORE_ADDR * pointing to where the value of the symbol |
| should be returned. The result is 0 if successful, nonzero if the |
| symbol does not exist in the target environment. This function should |
| not call error() if communication with the target is interrupted, since |
| it is called from symbol reading, but should return nonzero, possibly |
| doing a complain(). */ |
| |
| #define target_lookup_symbol(name, addrp) \ |
| (*current_target.to_lookup_symbol) (name, addrp) |
| |
| /* Start an inferior process and set inferior_pid to its pid. |
| EXEC_FILE is the file to run. |
| ALLARGS is a string containing the arguments to the program. |
| ENV is the environment vector to pass. Errors reported with error(). |
| On VxWorks and various standalone systems, we ignore exec_file. */ |
| |
| #define target_create_inferior(exec_file, args, env) \ |
| (*current_target.to_create_inferior) (exec_file, args, env) |
| |
| |
| /* 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.) |
| |
| Such targets will supply an appropriate definition for this function. |
| */ |
| #define target_post_startup_inferior(pid) \ |
| (*current_target.to_post_startup_inferior) (pid) |
| |
| /* On some targets, the sequence of starting up an inferior requires |
| some synchronization between gdb and the new inferior process, PID. |
| */ |
| #define target_acknowledge_created_inferior(pid) \ |
| (*current_target.to_acknowledge_created_inferior) (pid) |
| |
| /* An inferior process has been created via a fork() or similar |
| system call. This function will clone the debugger, then ensure |
| that CHILD_PID is attached to by that debugger. |
| |
| FOLLOWED_CHILD is set TRUE on return *for the clone debugger only*, |
| and FALSE otherwise. (The original and clone debuggers can use this |
| to determine which they are, if need be.) |
| |
| (This is not a terribly useful feature without a GUI to prevent |
| the two debuggers from competing for shell input.) |
| */ |
| #define target_clone_and_follow_inferior(child_pid,followed_child) \ |
| (*current_target.to_clone_and_follow_inferior) (child_pid, followed_child) |
| |
| /* This operation is intended to be used as the last in a sequence of |
| steps taken when following both parent and child of a fork. This |
| is used by a clone of the debugger, which will follow the child. |
| |
| The original debugger has detached from this process, and the |
| clone has attached to it. |
| |
| On some targets, this requires a bit of cleanup to make it work |
| correctly. |
| */ |
| #define target_post_follow_inferior_by_clone() \ |
| (*current_target.to_post_follow_inferior_by_clone) () |
| |
| /* On some targets, we can catch an inferior fork or vfork event when it |
| occurs. These functions insert/remove an already-created catchpoint for |
| such events. |
| */ |
| #define target_insert_fork_catchpoint(pid) \ |
| (*current_target.to_insert_fork_catchpoint) (pid) |
| |
| #define target_remove_fork_catchpoint(pid) \ |
| (*current_target.to_remove_fork_catchpoint) (pid) |
| |
| #define target_insert_vfork_catchpoint(pid) \ |
| (*current_target.to_insert_vfork_catchpoint) (pid) |
| |
| #define target_remove_vfork_catchpoint(pid) \ |
| (*current_target.to_remove_vfork_catchpoint) (pid) |
| |
| /* Returns TRUE if PID has invoked the fork() system call. And, |
| also sets CHILD_PID to the process id of the other ("child") |
| inferior process that was created by that call. |
| */ |
| #define target_has_forked(pid,child_pid) \ |
| (*current_target.to_has_forked) (pid,child_pid) |
| |
| /* Returns TRUE if PID has invoked the vfork() system call. And, |
| also sets CHILD_PID to the process id of the other ("child") |
| inferior process that was created by that call. |
| */ |
| #define target_has_vforked(pid,child_pid) \ |
| (*current_target.to_has_vforked) (pid,child_pid) |
| |
| /* Some platforms (such as pre-10.20 HP-UX) don't allow us to do |
| anything to a vforked child before it subsequently calls exec(). |
| On such platforms, we say that the debugger cannot "follow" the |
| child until it has vforked. |
| |
| This function should be defined to return 1 by those targets |
| which can allow the debugger to immediately follow a vforked |
| child, and 0 if they cannot. |
| */ |
| #define target_can_follow_vfork_prior_to_exec() \ |
| (*current_target.to_can_follow_vfork_prior_to_exec) () |
| |
| /* An inferior process has been created via a vfork() system call. |
| The debugger has followed the parent, the child, or both. The |
| process of setting up for that follow may have required some |
| target-specific trickery to track the sequence of reported events. |
| If so, this function should be defined by those targets that |
| require the debugger to perform cleanup or initialization after |
| the vfork follow. |
| */ |
| #define target_post_follow_vfork(parent_pid,followed_parent,child_pid,followed_child) \ |
| (*current_target.to_post_follow_vfork) (parent_pid,followed_parent,child_pid,followed_child) |
| |
| /* On some targets, we can catch an inferior exec event when it |
| occurs. These functions insert/remove an already-created catchpoint |
| for such events. |
| */ |
| #define target_insert_exec_catchpoint(pid) \ |
| (*current_target.to_insert_exec_catchpoint) (pid) |
| |
| #define target_remove_exec_catchpoint(pid) \ |
| (*current_target.to_remove_exec_catchpoint) (pid) |
| |
| /* Returns TRUE if PID has invoked a flavor of the exec() system call. |
| And, also sets EXECD_PATHNAME to the pathname of the executable file |
| that was passed to exec(), and is now being executed. |
| */ |
| #define target_has_execd(pid,execd_pathname) \ |
| (*current_target.to_has_execd) (pid,execd_pathname) |
| |
| /* Returns the number of exec events that are reported when a process |
| invokes a flavor of the exec() system call on this target, if exec |
| events are being reported. |
| */ |
| #define target_reported_exec_events_per_exec_call() \ |
| (*current_target.to_reported_exec_events_per_exec_call) () |
| |
| /* Returns TRUE if PID has reported a syscall event. And, also sets |
| KIND to the appropriate TARGET_WAITKIND_, and sets SYSCALL_ID to |
| the unique integer ID of the syscall. |
| */ |
| #define target_has_syscall_event(pid,kind,syscall_id) \ |
| (*current_target.to_has_syscall_event) (pid,kind,syscall_id) |
| |
| /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the |
| exit code of PID, if any. |
| */ |
| #define target_has_exited(pid,wait_status,exit_status) \ |
| (*current_target.to_has_exited) (pid,wait_status,exit_status) |
| |
| /* The debugger has completed a blocking wait() call. There is now |
| some process event that must be processed. This function should |
| be defined by those targets that require the debugger to perform |
| cleanup or internal state changes in response to the process event. |
| */ |
| |
| /* The inferior process has died. Do what is right. */ |
| |
| #define target_mourn_inferior() \ |
| (*current_target.to_mourn_inferior) () |
| |
| /* Does target have enough data to do a run or attach command? */ |
| |
| #define target_can_run(t) \ |
| ((t)->to_can_run) () |
| |
| /* post process changes to signal handling in the inferior. */ |
| |
| #define target_notice_signals(pid) \ |
| (*current_target.to_notice_signals) (pid) |
| |
| /* Check to see if a thread is still alive. */ |
| |
| #define target_thread_alive(pid) \ |
| (*current_target.to_thread_alive) (pid) |
| |
| /* Query for new threads and add them to the thread list. */ |
| |
| #define target_find_new_threads() \ |
| do { \ |
| if (current_target.to_find_new_threads) \ |
| (*current_target.to_find_new_threads) (); \ |
| } while (0); |
| |
| /* Make target stop in a continuable fashion. (For instance, under Unix, this |
| should act like SIGSTOP). This function is normally used by GUIs to |
| implement a stop button. */ |
| |
| #define target_stop current_target.to_stop |
| |
| /* Queries the target side for some information. The first argument is a |
| letter specifying the type of the query, which is used to determine who |
| should process it. The second argument is a string that specifies which |
| information is desired and the third is a buffer that carries back the |
| response from the target side. The fourth parameter is the size of the |
| output buffer supplied. */ |
| |
| #define target_query(query_type, query, resp_buffer, bufffer_size) \ |
| (*current_target.to_query) (query_type, query, resp_buffer, bufffer_size) |
| |
| /* Get the symbol information for a breakpointable routine called when |
| an exception event occurs. |
| Intended mainly for C++, and for those |
| platforms/implementations where such a callback mechanism is available, |
| e.g. HP-UX with ANSI C++ (aCC). Some compilers (e.g. g++) support |
| different mechanisms for debugging exceptions. */ |
| |
| #define target_enable_exception_callback(kind, enable) \ |
| (*current_target.to_enable_exception_callback) (kind, enable) |
| |
| /* Get the current exception event kind -- throw or catch, etc. */ |
| |
| #define target_get_current_exception_event() \ |
| (*current_target.to_get_current_exception_event) () |
| |
| /* Pointer to next target in the chain, e.g. a core file and an exec file. */ |
| |
| #define target_next \ |
| (current_target.to_next) |
| |
| /* Does the target include all of memory, or only part of it? This |
| determines whether we look up the target chain for other parts of |
| memory if this target can't satisfy a request. */ |
| |
| #define target_has_all_memory \ |
| (current_target.to_has_all_memory) |
| |
| /* Does the target include memory? (Dummy targets don't.) */ |
| |
| #define target_has_memory \ |
| (current_target.to_has_memory) |
| |
| /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until |
| we start a process.) */ |
| |
| #define target_has_stack \ |
| (current_target.to_has_stack) |
| |
| /* Does the target have registers? (Exec files don't.) */ |
| |
| #define target_has_registers \ |
| (current_target.to_has_registers) |
| |
| /* Does the target have execution? Can we make it jump (through |
| hoops), or pop its stack a few times? FIXME: If this is to work that |
| way, it needs to check whether an inferior actually exists. |
| remote-udi.c and probably other targets can be the current target |
| when the inferior doesn't actually exist at the moment. Right now |
| this just tells us whether this target is *capable* of execution. */ |
| |
| #define target_has_execution \ |
| (current_target.to_has_execution) |
| |
| /* Can the target support the debugger control of thread execution? |
| a) Can it lock the thread scheduler? |
| b) Can it switch the currently running thread? */ |
| |
| #define target_can_lock_scheduler \ |
| (current_target.to_has_thread_control & tc_schedlock) |
| |
| #define target_can_switch_threads \ |
| (current_target.to_has_thread_control & tc_switch) |
| |
| /* Does the target support asynchronous execution? */ |
| #define target_has_async \ |
| (current_target.to_has_async_exec) |
| |
| extern void target_link PARAMS ((char *, CORE_ADDR *)); |
| |
| /* Converts a process id to a string. Usually, the string just contains |
| `process xyz', but on some systems it may contain |
| `process xyz thread abc'. */ |
| |
| #ifndef target_pid_to_str |
| #define target_pid_to_str(PID) \ |
| normal_pid_to_str (PID) |
| extern char *normal_pid_to_str PARAMS ((int pid)); |
| #endif |
| |
| #ifndef target_tid_to_str |
| #define target_tid_to_str(PID) \ |
| normal_pid_to_str (PID) |
| extern char *normal_pid_to_str PARAMS ((int pid)); |
| #endif |
| |
| |
| #ifndef target_new_objfile |
| #define target_new_objfile(OBJFILE) |
| #endif |
| |
| #ifndef target_pid_or_tid_to_str |
| #define target_pid_or_tid_to_str(ID) \ |
| normal_pid_to_str (ID) |
| #endif |
| |
| /* Attempts to find the pathname of the executable file |
| that was run to create a specified process. |
| |
| The process PID must be stopped when this operation is used. |
| |
| If the executable file cannot be determined, NULL is returned. |
| |
| Else, a pointer to a character string containing the pathname |
| is returned. This string should be copied into a buffer by |
| the client if the string will not be immediately used, or if |
| it must persist. |
| */ |
| |
| #define target_pid_to_exec_file(pid) \ |
| (current_target.to_pid_to_exec_file) (pid) |
| |
| /* Hook to call target-dependant code after reading in a new symbol table. */ |
| |
| #ifndef TARGET_SYMFILE_POSTREAD |
| #define TARGET_SYMFILE_POSTREAD(OBJFILE) |
| #endif |
| |
| /* Hook to call target dependant code just after inferior target process has |
| started. */ |
| |
| #ifndef TARGET_CREATE_INFERIOR_HOOK |
| #define TARGET_CREATE_INFERIOR_HOOK(PID) |
| #endif |
| |
| /* Hardware watchpoint interfaces. */ |
| |
| /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or |
| write). */ |
| |
| #ifndef STOPPED_BY_WATCHPOINT |
| #define STOPPED_BY_WATCHPOINT(w) 0 |
| #endif |
| |
| /* HP-UX supplies these operations, which respectively disable and enable |
| the memory page-protections that are used to implement hardware watchpoints |
| on that platform. See wait_for_inferior's use of these. |
| */ |
| #if !defined(TARGET_DISABLE_HW_WATCHPOINTS) |
| #define TARGET_DISABLE_HW_WATCHPOINTS(pid) |
| #endif |
| |
| #if !defined(TARGET_ENABLE_HW_WATCHPOINTS) |
| #define TARGET_ENABLE_HW_WATCHPOINTS(pid) |
| #endif |
| |
| /* Provide defaults for systems that don't support hardware watchpoints. */ |
| |
| #ifndef TARGET_HAS_HARDWARE_WATCHPOINTS |
| |
| /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is |
| one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or |
| bp_hardware_breakpoint. CNT is the number of such watchpoints used so far |
| (including this one?). OTHERTYPE is who knows what... */ |
| |
| #define TARGET_CAN_USE_HARDWARE_WATCHPOINT(TYPE,CNT,OTHERTYPE) 0 |
| |
| #if !defined(TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT) |
| #define TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT(byte_count) \ |
| (LONGEST)(byte_count) <= REGISTER_SIZE |
| #endif |
| |
| /* However, some addresses may not be profitable to use hardware to watch, |
| or may be difficult to understand when the addressed object is out of |
| scope, and hence should be unwatched. On some targets, this may have |
| severe performance penalties, such that we might as well use regular |
| watchpoints, and save (possibly precious) hardware watchpoints for other |
| locations. |
| */ |
| #if !defined(TARGET_RANGE_PROFITABLE_FOR_HW_WATCHPOINT) |
| #define TARGET_RANGE_PROFITABLE_FOR_HW_WATCHPOINT(pid,start,len) 0 |
| #endif |
| |
| |
| /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. TYPE is 0 |
| for write, 1 for read, and 2 for read/write accesses. Returns 0 for |
| success, non-zero for failure. */ |
| |
| #define target_remove_watchpoint(ADDR,LEN,TYPE) -1 |
| #define target_insert_watchpoint(ADDR,LEN,TYPE) -1 |
| |
| #endif /* TARGET_HAS_HARDWARE_WATCHPOINTS */ |
| |
| #ifndef target_insert_hw_breakpoint |
| #define target_remove_hw_breakpoint(ADDR,SHADOW) -1 |
| #define target_insert_hw_breakpoint(ADDR,SHADOW) -1 |
| #endif |
| |
| #ifndef target_stopped_data_address |
| #define target_stopped_data_address() 0 |
| #endif |
| |
| /* If defined, then we need to decr pc by this much after a hardware break- |
| point. Presumably this overrides DECR_PC_AFTER_BREAK... */ |
| |
| #ifndef DECR_PC_AFTER_HW_BREAK |
| #define DECR_PC_AFTER_HW_BREAK 0 |
| #endif |
| |
| /* Sometimes gdb may pick up what appears to be a valid target address |
| from a minimal symbol, but the value really means, essentially, |
| "This is an index into a table which is populated when the inferior |
| is run. Therefore, do not attempt to use this as a PC." |
| */ |
| #if !defined(PC_REQUIRES_RUN_BEFORE_USE) |
| #define PC_REQUIRES_RUN_BEFORE_USE(pc) (0) |
| #endif |
| |
| /* This will only be defined by a target that supports catching vfork events, |
| such as HP-UX. |
| |
| On some targets (such as HP-UX 10.20 and earlier), resuming a newly vforked |
| child process after it has exec'd, causes the parent process to resume as |
| well. To prevent the parent from running spontaneously, such targets should |
| define this to a function that prevents that from happening. |
| */ |
| #if !defined(ENSURE_VFORKING_PARENT_REMAINS_STOPPED) |
| #define ENSURE_VFORKING_PARENT_REMAINS_STOPPED(PID) (0) |
| #endif |
| |
| /* This will only be defined by a target that supports catching vfork events, |
| such as HP-UX. |
| |
| On some targets (such as HP-UX 10.20 and earlier), a newly vforked child |
| process must be resumed when it delivers its exec event, before the parent |
| vfork event will be delivered to us. |
| */ |
| #if !defined(RESUME_EXECD_VFORKING_CHILD_TO_GET_PARENT_VFORK) |
| #define RESUME_EXECD_VFORKING_CHILD_TO_GET_PARENT_VFORK() (0) |
| #endif |
| |
| /* Routines for maintenance of the target structures... |
| |
| add_target: Add a target to the list of all possible targets. |
| |
| push_target: Make this target the top of the stack of currently used |
| targets, within its particular stratum of the stack. Result |
| is 0 if now atop the stack, nonzero if not on top (maybe |
| should warn user). |
| |
| unpush_target: Remove this from the stack of currently used targets, |
| no matter where it is on the list. Returns 0 if no |
| change, 1 if removed from stack. |
| |
| pop_target: Remove the top thing on the stack of current targets. */ |
| |
| extern void |
| add_target PARAMS ((struct target_ops *)); |
| |
| extern int |
| push_target PARAMS ((struct target_ops *)); |
| |
| extern int |
| unpush_target PARAMS ((struct target_ops *)); |
| |
| extern void |
| target_preopen PARAMS ((int)); |
| |
| extern void |
| pop_target PARAMS ((void)); |
| |
| /* Struct section_table maps address ranges to file sections. It is |
| mostly used with BFD files, but can be used without (e.g. for handling |
| raw disks, or files not in formats handled by BFD). */ |
| |
| struct section_table { |
| CORE_ADDR addr; /* Lowest address in section */ |
| CORE_ADDR endaddr; /* 1+highest address in section */ |
| |
| sec_ptr the_bfd_section; |
| |
| bfd *bfd; /* BFD file pointer */ |
| }; |
| |
| /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
| Returns 0 if OK, 1 on error. */ |
| |
| extern int |
| build_section_table PARAMS ((bfd *, struct section_table **, |
| struct section_table **)); |
| |
| /* From mem-break.c */ |
| |
| extern int memory_remove_breakpoint PARAMS ((CORE_ADDR, char *)); |
| |
| extern int memory_insert_breakpoint PARAMS ((CORE_ADDR, char *)); |
| |
| extern breakpoint_from_pc_fn memory_breakpoint_from_pc; |
| #ifndef BREAKPOINT_FROM_PC |
| #define BREAKPOINT_FROM_PC(pcptr, lenptr) memory_breakpoint_from_pc (pcptr, lenptr) |
| #endif |
| |
| |
| /* From target.c */ |
| |
| extern void |
| initialize_targets PARAMS ((void)); |
| |
| extern void |
| noprocess PARAMS ((void)); |
| |
| extern void |
| find_default_attach PARAMS ((char *, int)); |
| |
| void |
| find_default_require_attach PARAMS ((char *, int)); |
| |
| void |
| find_default_require_detach PARAMS ((int, char *, int)); |
| |
| extern void |
| find_default_create_inferior PARAMS ((char *, char *, char **)); |
| |
| void |
| find_default_clone_and_follow_inferior PARAMS ((int, int *)); |
| |
| extern struct target_ops *find_run_target PARAMS ((void)); |
| |
| extern struct target_ops * |
| find_core_target PARAMS ((void)); |
| |
| /* Stuff that should be shared among the various remote targets. */ |
| |
| /* Debugging level. 0 is off, and non-zero values mean to print some debug |
| information (higher values, more information). */ |
| extern int remote_debug; |
| |
| /* Speed in bits per second, or -1 which means don't mess with the speed. */ |
| extern int baud_rate; |
| /* Timeout limit for response from target. */ |
| extern int remote_timeout; |
| |
| extern asection *target_memory_bfd_section; |
| |
| /* Functions for helping to write a native target. */ |
| |
| /* This is for native targets which use a unix/POSIX-style waitstatus. */ |
| extern void store_waitstatus PARAMS ((struct target_waitstatus *, int)); |
| |
| /* Convert between host signal numbers and enum target_signal's. */ |
| extern enum target_signal target_signal_from_host PARAMS ((int)); |
| extern int target_signal_to_host PARAMS ((enum target_signal)); |
| |
| /* Convert from a number used in a GDB command to an enum target_signal. */ |
| extern enum target_signal target_signal_from_command PARAMS ((int)); |
| |
| /* Any target can call this to switch to remote protocol (in remote.c). */ |
| extern void push_remote_target PARAMS ((char *name, int from_tty)); |
| |
| /* Imported from machine dependent code */ |
| |
| #ifndef SOFTWARE_SINGLE_STEP_P |
| #define SOFTWARE_SINGLE_STEP_P 0 |
| #define SOFTWARE_SINGLE_STEP(sig,bp_p) abort () |
| #endif /* SOFTWARE_SINGLE_STEP_P */ |
| |
| /* Blank target vector entries are initialized to target_ignore. */ |
| void target_ignore PARAMS ((void)); |
| |
| /* Macro for getting target's idea of a frame pointer. |
| FIXME: GDB's whole scheme for dealing with "frames" and |
| "frame pointers" needs a serious shakedown. */ |
| #ifndef TARGET_VIRTUAL_FRAME_POINTER |
| #define TARGET_VIRTUAL_FRAME_POINTER(ADDR, REGP, OFFP) \ |
| do { *(REGP) = FP_REGNUM; *(OFFP) = 0; } while (0) |
| #endif /* TARGET_VIRTUAL_FRAME_POINTER */ |
| |
| #endif /* !defined (TARGET_H) */ |