/* Internal interfaces for the GNU/Linux specific target code for gdbserver.
- Copyright (C) 2002, 2004, 2005, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2002, 2004-2005, 2007-2012 Free Software Foundation,
+ Inc.
This file is part of GDB.
#ifdef HAVE_THREAD_DB_H
#include <thread_db.h>
#endif
+#include <signal.h>
#include "gdb_proc_service.h"
extern struct regset_info target_regsets[];
#endif
-struct siginfo;
-
struct process_info_private
{
/* Arch-specific additions. */
/* libthread_db-specific additions. Not NULL if this process has loaded
thread_db, and it is active. */
struct thread_db *thread_db;
+
+ /* &_r_debug. 0 if not yet determined. -1 if no PT_DYNAMIC in Phdrs. */
+ CORE_ADDR r_debug;
};
struct lwp_info;
int num_regs;
int *regmap;
+
+ /* Regset support bitmap: 1 for registers that are transferred as a part
+ of a regset, 0 for ones that need to be handled individually. This
+ can be NULL if all registers are transferred with regsets or regsets
+ are not supported. */
+ unsigned char *regset_bitmap;
int (*cannot_fetch_register) (int);
/* Returns 0 if we can store the register, 1 if we can not
Returns true if any conversion was done; false otherwise.
If DIRECTION is 1, then copy from INF to NATIVE.
If DIRECTION is 0, copy from NATIVE to INF. */
- int (*siginfo_fixup) (struct siginfo *native, void *inf, int direction);
+ int (*siginfo_fixup) (siginfo_t *native, void *inf, int direction);
/* Hook to call when a new process is created or attached to.
If extra per-process architecture-specific data is needed,
/* Returns true if the low target supports tracepoints. */
int (*supports_tracepoints) (void);
+
+ /* Fill ADDRP with the thread area address of LWPID. Returns 0 on
+ success, -1 on failure. */
+ int (*get_thread_area) (int lwpid, CORE_ADDR *addrp);
+
+ /* Install a fast tracepoint jump pad. See target.h for
+ comments. */
+ int (*install_fast_tracepoint_jump_pad) (CORE_ADDR tpoint, CORE_ADDR tpaddr,
+ CORE_ADDR collector,
+ CORE_ADDR lockaddr,
+ ULONGEST orig_size,
+ CORE_ADDR *jump_entry,
+ CORE_ADDR *trampoline,
+ ULONGEST *trampoline_size,
+ unsigned char *jjump_pad_insn,
+ ULONGEST *jjump_pad_insn_size,
+ CORE_ADDR *adjusted_insn_addr,
+ CORE_ADDR *adjusted_insn_addr_end,
+ char *err);
+
+ /* Return the bytecode operations vector for the current inferior.
+ Returns NULL if bytecode compilation is not supported. */
+ struct emit_ops *(*emit_ops) (void);
+
+ /* Return the minimum length of an instruction that can be safely overwritten
+ for use as a fast tracepoint. */
+ int (*get_min_fast_tracepoint_insn_len) (void);
+
};
extern struct linux_target_ops the_low_target;
and then processed and cleared in linux_resume_one_lwp. */
struct thread_resume *resume;
- /* The last resume GDB requested on this thread. */
- enum resume_kind last_resume_kind;
+ /* True if it is known that this lwp is presently collecting a fast
+ tracepoint (it is in the jump pad or in some code that will
+ return to the jump pad. Normally, we won't care about this, but
+ we will if a signal arrives to this lwp while it is
+ collecting. */
+ int collecting_fast_tracepoint;
+
+ /* If this is non-zero, it points to a chain of signals which need
+ to be reported to GDB. These were deferred because the thread
+ was doing a fast tracepoint collect when they arrived. */
+ struct pending_signals *pending_signals_to_report;
+
+ /* When collecting_fast_tracepoint is first found to be 1, we insert
+ a exit-jump-pad-quickly breakpoint. This is it. */
+ struct breakpoint *exit_jump_pad_bkpt;
/* True if the LWP was seen stop at an internal breakpoint and needs
stepping over later when it is resumed. */
extern struct inferior_list all_lwps;
-char *linux_child_pid_to_exec_file (int pid);
-int elf_64_file_p (const char *file);
+int linux_pid_exe_is_elf_64_file (int pid);
void linux_attach_lwp (unsigned long pid);
struct lwp_info *find_lwp_pid (ptid_t ptid);
+void linux_stop_lwp (struct lwp_info *lwp);
/* From thread-db.c */
int thread_db_init (int use_events);
-void thread_db_free (struct process_info *, int detaching);
+void thread_db_detach (struct process_info *);
+void thread_db_mourn (struct process_info *);
int thread_db_handle_monitor_command (char *);
int thread_db_get_tls_address (struct thread_info *thread, CORE_ADDR offset,
CORE_ADDR load_module, CORE_ADDR *address);
+int thread_db_look_up_one_symbol (const char *name, CORE_ADDR *addrp);