X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fgdbserver%2Ftarget.h;h=2df135a7696c0800f483365add1973203d086f97;hb=cf950fd4dd4581849a445a76b57514d72074927d;hp=126c861a68169c9a6a38611c634448c17ee15e6d;hpb=1ec68e26c982a256df03d22dce072b88ab117a73;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/gdbserver/target.h b/gdb/gdbserver/target.h
index 126c861a68..2df135a769 100644
--- a/gdb/gdbserver/target.h
+++ b/gdb/gdbserver/target.h
@@ -1,5 +1,5 @@
/* Target operations for the remote server for GDB.
- Copyright (C) 2002-2015 Free Software Foundation, Inc.
+ Copyright (C) 2002-2019 Free Software Foundation, Inc.
Contributed by MontaVista Software.
@@ -18,15 +18,17 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see . */
-#ifndef TARGET_H
-#define TARGET_H
+#ifndef GDBSERVER_TARGET_H
+#define GDBSERVER_TARGET_H
+#include /* for mode_t */
#include "target/target.h"
#include "target/resume.h"
#include "target/wait.h"
#include "target/waitstatus.h"
#include "mem-break.h"
-#include "btrace-common.h"
+#include "gdbsupport/btrace-common.h"
+#include
struct emit_ops;
struct buffer;
@@ -66,13 +68,17 @@ struct target_ops
/* Start a new process.
PROGRAM is a path to the program to execute.
- ARGS is a standard NULL-terminated array of arguments,
- to be passed to the inferior as ``argv''.
+ PROGRAM_ARGS is a standard NULL-terminated array of arguments,
+ to be passed to the inferior as ``argv'' (along with PROGRAM).
Returns the new PID on success, -1 on failure. Registers the new
process with the process list. */
+ int (*create_inferior) (const char *program,
+ const std::vector &program_args);
- int (*create_inferior) (char *program, char **args);
+ /* Do additional setup after a new process is created, including
+ exec-wrapper completion. */
+ void (*post_create_inferior) (void);
/* Attach to a running process.
@@ -84,20 +90,21 @@ struct target_ops
int (*attach) (unsigned long pid);
- /* Kill inferior PID. Return -1 on failure, and 0 on success. */
+ /* Kill process PROC. Return -1 on failure, and 0 on success. */
- int (*kill) (int pid);
+ int (*kill) (process_info *proc);
- /* Detach from inferior PID. Return -1 on failure, and 0 on
+ /* Detach from process PROC. Return -1 on failure, and 0 on
success. */
- int (*detach) (int pid);
+ int (*detach) (process_info *proc);
/* The inferior process has died. Do what is right. */
void (*mourn) (struct process_info *proc);
- /* Wait for inferior PID to exit. */
+ /* Wait for process PID to exit. */
+
void (*join) (int pid);
/* Return 1 iff the thread with process ID PID is alive. */
@@ -160,7 +167,7 @@ struct target_ops
int (*read_memory) (CORE_ADDR memaddr, unsigned char *myaddr, int len);
/* Write memory to the inferior process. This should generally be
- called through write_inferior_memory, which handles breakpoint shadowing.
+ called through target_write_memory, which handles breakpoint shadowing.
Write LEN bytes from the buffer at MYADDR to MEMADDR.
@@ -222,6 +229,9 @@ struct target_ops
HW breakpoint triggering. */
int (*supports_stopped_by_hw_breakpoint) (void);
+ /* Returns true if the target can do hardware single step. */
+ int (*supports_hardware_single_step) (void);
+
/* Returns 1 if target was stopped due to a watchpoint hit, 0 otherwise. */
int (*stopped_by_watchpoint) (void);
@@ -246,10 +256,6 @@ struct target_ops
int (*get_tls_address) (struct thread_info *thread, CORE_ADDR offset,
CORE_ADDR load_module, CORE_ADDR *address);
- /* Read/Write from/to spufs using qXfer packets. */
- int (*qxfer_spu) (const char *annex, unsigned char *readbuf,
- unsigned const char *writebuf, CORE_ADDR offset, int len);
-
/* Fill BUF with an hostio error packet representing the last hostio
error. */
void (*hostio_last_error) (char *buf);
@@ -277,6 +283,18 @@ struct target_ops
/* Returns true if the target supports multi-process debugging. */
int (*supports_multi_process) (void);
+ /* Returns true if fork events are supported. */
+ int (*supports_fork_events) (void);
+
+ /* Returns true if vfork events are supported. */
+ int (*supports_vfork_events) (void);
+
+ /* Returns true if exec events are supported. */
+ int (*supports_exec_events) (void);
+
+ /* Allows target to re-initialize connection-specific settings. */
+ void (*handle_new_gdb_connection) (void);
+
/* If not NULL, target-specific routine to process monitor command.
Returns 1 if handled, or 0 to perform default processing. */
int (*handle_monitor_command) (char *);
@@ -288,8 +306,9 @@ struct target_ops
int (*read_loadmap) (const char *annex, CORE_ADDR offset,
unsigned char *myaddr, unsigned int len);
- /* Target specific qSupported support. */
- void (*process_qsupported) (const char *);
+ /* Target specific qSupported support. FEATURES is an array of
+ features with COUNT elements. */
+ void (*process_qsupported) (char **features, int count);
/* Return 1 if the target supports tracepoints, 0 (or leave the
callback NULL) otherwise. */
@@ -369,9 +388,6 @@ struct target_ops
/* Return true if target supports debugging agent. */
int (*supports_agent) (void);
- /* Check whether the target supports branch tracing. */
- int (*supports_btrace) (struct target_ops *, enum btrace_format);
-
/* Enable branch tracing for PTID based on CONF and allocate a branch trace
target information struct for reading and for disabling branch trace. */
struct btrace_target_info *(*enable_btrace)
@@ -381,11 +397,11 @@ struct target_ops
Returns zero on success, non-zero otherwise. */
int (*disable_btrace) (struct btrace_target_info *tinfo);
- /* Read branch trace data into buffer. We use an int to specify the type
- to break a cyclic dependency.
+ /* Read branch trace data into buffer.
Return 0 on success; print an error message into BUFFER and return -1,
otherwise. */
- int (*read_btrace) (struct btrace_target_info *, struct buffer *, int type);
+ int (*read_btrace) (struct btrace_target_info *, struct buffer *,
+ enum btrace_read_type type);
/* Read the branch trace configuration into BUFFER.
Return 0 on success; print an error message into BUFFER and return -1
@@ -394,25 +410,112 @@ struct target_ops
/* Return true if target supports range stepping. */
int (*supports_range_stepping) (void);
+
+ /* Return the full absolute name of the executable file that was
+ run to create the process PID. If the executable file cannot
+ be determined, NULL is returned. Otherwise, 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. */
+ char *(*pid_to_exec_file) (int pid);
+
+ /* Multiple-filesystem-aware open. Like open(2), but operating in
+ the filesystem as it appears to process PID. Systems where all
+ processes share a common filesystem should set this to NULL.
+ If NULL, the caller should fall back to open(2). */
+ int (*multifs_open) (int pid, const char *filename,
+ int flags, mode_t mode);
+
+ /* Multiple-filesystem-aware unlink. Like unlink(2), but operates
+ in the filesystem as it appears to process PID. Systems where
+ all processes share a common filesystem should set this to NULL.
+ If NULL, the caller should fall back to unlink(2). */
+ int (*multifs_unlink) (int pid, const char *filename);
+
+ /* Multiple-filesystem-aware readlink. Like readlink(2), but
+ operating in the filesystem as it appears to process PID.
+ Systems where all processes share a common filesystem should
+ set this to NULL. If NULL, the caller should fall back to
+ readlink(2). */
+ ssize_t (*multifs_readlink) (int pid, const char *filename,
+ char *buf, size_t bufsiz);
+
+ /* Return the breakpoint kind for this target based on PC. The PCPTR is
+ adjusted to the real memory location in case a flag (e.g., the Thumb bit on
+ ARM) was present in the PC. */
+ int (*breakpoint_kind_from_pc) (CORE_ADDR *pcptr);
+
+ /* Return the software breakpoint from KIND. KIND can have target
+ specific meaning like the Z0 kind parameter.
+ SIZE is set to the software breakpoint's length in memory. */
+ const gdb_byte *(*sw_breakpoint_from_kind) (int kind, int *size);
+
+ /* Return the thread's name, or NULL if the target is unable to determine it.
+ The returned value must not be freed by the caller. */
+ const char *(*thread_name) (ptid_t thread);
+
+ /* Return the breakpoint kind for this target based on the current
+ processor state (e.g. the current instruction mode on ARM) and the
+ PC. The PCPTR is adjusted to the real memory location in case a flag
+ (e.g., the Thumb bit on ARM) is present in the PC. */
+ int (*breakpoint_kind_from_current_state) (CORE_ADDR *pcptr);
+
+ /* Returns true if the target can software single step. */
+ int (*supports_software_single_step) (void);
+
+ /* Return 1 if the target supports catch syscall, 0 (or leave the
+ callback NULL) otherwise. */
+ int (*supports_catch_syscall) (void);
+
+ /* Return tdesc index for IPA. */
+ int (*get_ipa_tdesc_idx) (void);
+
+ /* Thread ID to (numeric) thread handle: Return true on success and
+ false for failure. Return pointer to thread handle via HANDLE
+ and the handle's length via HANDLE_LEN. */
+ bool (*thread_handle) (ptid_t ptid, gdb_byte **handle, int *handle_len);
};
extern struct target_ops *the_target;
void set_target_ops (struct target_ops *);
-#define create_inferior(program, args) \
- (*the_target->create_inferior) (program, args)
+#define create_inferior(program, program_args) \
+ (*the_target->create_inferior) (program, program_args)
+
+#define target_post_create_inferior() \
+ do \
+ { \
+ if (the_target->post_create_inferior != NULL) \
+ (*the_target->post_create_inferior) (); \
+ } while (0)
#define myattach(pid) \
(*the_target->attach) (pid)
-int kill_inferior (int);
+int kill_inferior (process_info *proc);
+
+#define target_supports_fork_events() \
+ (the_target->supports_fork_events ? \
+ (*the_target->supports_fork_events) () : 0)
-#define detach_inferior(pid) \
- (*the_target->detach) (pid)
+#define target_supports_vfork_events() \
+ (the_target->supports_vfork_events ? \
+ (*the_target->supports_vfork_events) () : 0)
-#define mourn_inferior(PROC) \
- (*the_target->mourn) (PROC)
+#define target_supports_exec_events() \
+ (the_target->supports_exec_events ? \
+ (*the_target->supports_exec_events) () : 0)
+
+#define target_handle_new_gdb_connection() \
+ do \
+ { \
+ if (the_target->handle_new_gdb_connection != NULL) \
+ (*the_target->handle_new_gdb_connection) (); \
+ } while (0)
+
+#define detach_inferior(proc) \
+ (*the_target->detach) (proc)
#define mythread_alive(pid) \
(*the_target->thread_alive) (pid)
@@ -432,17 +535,21 @@ int kill_inferior (int);
#define target_async(enable) \
(the_target->async ? (*the_target->async) (enable) : 0)
-#define target_supports_multi_process() \
- (the_target->supports_multi_process ? \
- (*the_target->supports_multi_process) () : 0)
-
-#define target_process_qsupported(query) \
+#define target_process_qsupported(features, count) \
do \
{ \
if (the_target->process_qsupported) \
- the_target->process_qsupported (query); \
+ the_target->process_qsupported (features, count); \
} while (0)
+#define target_supports_catch_syscall() \
+ (the_target->supports_catch_syscall ? \
+ (*the_target->supports_catch_syscall) () : 0)
+
+#define target_get_ipa_tdesc_idx() \
+ (the_target->get_ipa_tdesc_idx \
+ ? (*the_target->get_ipa_tdesc_idx) () : 0)
+
#define target_supports_tracepoints() \
(the_target->supports_tracepoints \
? (*the_target->supports_tracepoints) () : 0)
@@ -510,21 +617,44 @@ int kill_inferior (int);
(the_target->supports_agent ? \
(*the_target->supports_agent) () : 0)
-#define target_supports_btrace(format) \
- (the_target->supports_btrace \
- ? (*the_target->supports_btrace) (the_target, format) : 0)
+static inline struct btrace_target_info *
+target_enable_btrace (ptid_t ptid, const struct btrace_config *conf)
+{
+ if (the_target->enable_btrace == nullptr)
+ error (_("Target does not support branch tracing."));
+
+ return (*the_target->enable_btrace) (ptid, conf);
+}
+
+static inline int
+target_disable_btrace (struct btrace_target_info *tinfo)
+{
+ if (the_target->disable_btrace == nullptr)
+ error (_("Target does not support branch tracing."));
+
+ return (*the_target->disable_btrace) (tinfo);
+}
-#define target_enable_btrace(ptid, conf) \
- (*the_target->enable_btrace) (ptid, conf)
+static inline int
+target_read_btrace (struct btrace_target_info *tinfo,
+ struct buffer *buffer,
+ enum btrace_read_type type)
+{
+ if (the_target->read_btrace == nullptr)
+ error (_("Target does not support branch tracing."));
-#define target_disable_btrace(tinfo) \
- (*the_target->disable_btrace) (tinfo)
+ return (*the_target->read_btrace) (tinfo, buffer, type);
+}
-#define target_read_btrace(tinfo, buffer, type) \
- (*the_target->read_btrace) (tinfo, buffer, type)
+static inline int
+target_read_btrace_conf (struct btrace_target_info *tinfo,
+ struct buffer *buffer)
+{
+ if (the_target->read_btrace_conf == nullptr)
+ error (_("Target does not support branch tracing."));
-#define target_read_btrace_conf(tinfo, buffer) \
- (*the_target->read_btrace_conf) (tinfo, buffer)
+ return (*the_target->read_btrace_conf) (tinfo, buffer);
+}
#define target_supports_range_stepping() \
(the_target->supports_range_stepping ? \
@@ -542,10 +672,28 @@ int kill_inferior (int);
(the_target->supports_stopped_by_hw_breakpoint ? \
(*the_target->supports_stopped_by_hw_breakpoint) () : 0)
+#define target_supports_hardware_single_step() \
+ (the_target->supports_hardware_single_step ? \
+ (*the_target->supports_hardware_single_step) () : 0)
+
#define target_stopped_by_hw_breakpoint() \
(the_target->stopped_by_hw_breakpoint ? \
(*the_target->stopped_by_hw_breakpoint) () : 0)
+#define target_breakpoint_kind_from_pc(pcptr) \
+ (the_target->breakpoint_kind_from_pc \
+ ? (*the_target->breakpoint_kind_from_pc) (pcptr) \
+ : default_breakpoint_kind_from_pc (pcptr))
+
+#define target_breakpoint_kind_from_current_state(pcptr) \
+ (the_target->breakpoint_kind_from_current_state \
+ ? (*the_target->breakpoint_kind_from_current_state) (pcptr) \
+ : target_breakpoint_kind_from_pc (pcptr))
+
+#define target_supports_software_single_step() \
+ (the_target->supports_software_single_step ? \
+ (*the_target->supports_software_single_step) () : 0)
+
/* Start non-stop mode, returns 0 on success, -1 on failure. */
int start_non_stop (int nonstop);
@@ -553,29 +701,33 @@ int start_non_stop (int nonstop);
ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options,
int connected_wait);
-#define prepare_to_access_memory() \
- (the_target->prepare_to_access_memory \
- ? (*the_target->prepare_to_access_memory) () \
- : 0)
+/* Prepare to read or write memory from the inferior process. See the
+ corresponding target_ops methods for more details. */
-#define done_accessing_memory() \
- do \
- { \
- if (the_target->done_accessing_memory) \
- (*the_target->done_accessing_memory) (); \
- } while (0)
+int prepare_to_access_memory (void);
+void done_accessing_memory (void);
#define target_core_of_thread(ptid) \
(the_target->core_of_thread ? (*the_target->core_of_thread) (ptid) \
: -1)
-int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len);
+#define target_thread_name(ptid) \
+ (the_target->thread_name ? (*the_target->thread_name) (ptid) \
+ : NULL)
+
+#define target_thread_handle(ptid, handle, handle_len) \
+ (the_target->thread_handle ? (*the_target->thread_handle) \
+ (ptid, handle, handle_len) \
+ : false)
-int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
- int len);
+int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len);
-void set_desired_thread (int id);
+int set_desired_thread ();
const char *target_pid_to_str (ptid_t);
-#endif /* TARGET_H */
+int target_can_do_hardware_single_step (void);
+
+int default_breakpoint_kind_from_pc (CORE_ADDR *pcptr);
+
+#endif /* GDBSERVER_TARGET_H */