gdbserver: Rename some functions, thread -> inferior

[deliverable/binutils-gdb.git] / gdb / gdbserver / linux-low.h

diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
index 24ea2d35fbfe11c1f68b782de37753e3668dd51a..91061447cc6c055f2e86f9b5baed7bedac758e05 100644 (file)
--- a/gdb/gdbserver/linux-low.h
+++ b/gdb/gdbserver/linux-low.h
@@ -1,5 +1,5 @@
 /* Internal interfaces for the GNU/Linux specific target code for gdbserver.
-   Copyright (C) 2002-2015 Free Software Foundation, Inc.
+   Copyright (C) 2002-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,6 +26,7 @@
 /* Included for ptrace type definitions.  */
 #include "nat/linux-ptrace.h"
 #include "target/waitstatus.h" /* For enum target_stop_reason.  */
+#include "tracepoint.h"
 
 #define PTRACE_XFER_TYPE long
 
@@ -153,7 +154,8 @@ struct linux_target_ops
   /* See target.h for details.  */
   const gdb_byte *(*sw_breakpoint_from_kind) (int kind, int *size);
 
-  CORE_ADDR (*breakpoint_reinsert_addr) (void);
+  /* Find the next possible PCs after the current instruction executes.  */
+  std::vector<CORE_ADDR> (*get_next_pcs) (struct regcache *regcache);
 
   int decr_pc_after_break;
   int (*breakpoint_at) (CORE_ADDR pc);
@@ -180,7 +182,7 @@ struct linux_target_ops
      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) (siginfo_t *native, void *inf, int direction);
+  int (*siginfo_fixup) (siginfo_t *native, gdb_byte *inf, int direction);
 
   /* Hook to call when a new process is created or attached to.
      If extra per-process architecture-specific data is needed,
@@ -239,11 +241,18 @@ struct linux_target_ops
 
   /* See target.h.  */
   int (*supports_hardware_single_step) (void);
+
+  /* Fill *SYSNO with the syscall nr trapped.  Only to be called when
+     inferior is stopped due to SYSCALL_SIGTRAP.  */
+  void (*get_syscall_trapinfo) (struct regcache *regcache, int *sysno);
+
+  /* See target.h.  */
+  int (*get_ipa_tdesc_idx) (void);
 };
 
 extern struct linux_target_ops the_low_target;
 
-#define get_thread_lwp(thr) ((struct lwp_info *) (inferior_target_data (thr)))
+#define get_thread_lwp(thr) ((struct lwp_info *) (thread_target_data (thr)))
 #define get_lwp_thread(lwp) ((lwp)->thread)
 
 /* This struct is recorded in the target_data field of struct thread_info.
@@ -277,6 +286,13 @@ struct lwp_info
      event already received in a wait()).  */
   int stopped;
 
+  /* Signal whether we are in a SYSCALL_ENTRY or
+     in a SYSCALL_RETURN event.
+     Values:
+     - TARGET_WAITKIND_SYSCALL_ENTRY
+     - TARGET_WAITKIND_SYSCALL_RETURN */
+  enum target_waitkind syscall_state;
+
   /* When stopped is set, the last wait status recorded for this lwp.  */
   int last_status;
 
@@ -286,6 +302,12 @@ struct lwp_info
      information or exit status until it can be reported to GDB.  */
   struct target_waitstatus waitstatus;
 
+  /* A pointer to the fork child/parent relative.  Valid only while
+     the parent fork event is not reported to higher layers.  Used to
+     avoid wildcard vCont actions resuming a fork child before GDB is
+     notified about the parent's fork event.  */
+  struct lwp_info *fork_relative;
+
   /* When stopped is set, this is where the lwp last stopped, with
      decr_pc_after_break already accounted for.  If the LWP is
      running, this is the address at which the lwp was resumed.  */
@@ -332,12 +354,11 @@ struct lwp_info
      and then processed and cleared in linux_resume_one_lwp.  */
   struct thread_resume *resume;
 
-  /* 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;
+  /* Information bout this lwp's fast tracepoint collection status (is it
+     currently stopped in the jump pad, and if so, before or at/after the
+     relocated instruction).  Normally, we won't care about this, but we will
+     if a signal arrives to this lwp while it is collecting.  */
+  fast_tpoint_collect_result 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
@@ -348,10 +369,6 @@ struct lwp_info
      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.  */
-  int need_step_over;
-
 #ifdef USE_THREAD_DB
   int thread_known;
   /* The thread handle, used for e.g. TLS access.  Only valid if
@@ -378,8 +395,14 @@ void initialize_regsets_info (struct regsets_info *regsets_info);
 
 void initialize_low_arch (void);
 
+void linux_set_pc_32bit (struct regcache *regcache, CORE_ADDR pc);
+CORE_ADDR linux_get_pc_32bit (struct regcache *regcache);
+
+void linux_set_pc_64bit (struct regcache *regcache, CORE_ADDR pc);
+CORE_ADDR linux_get_pc_64bit (struct regcache *regcache);
+
 /* From thread-db.c  */
-int thread_db_init (int use_events);
+int thread_db_init (void);
 void thread_db_detach (struct process_info *);
 void thread_db_mourn (struct process_info *);
 int thread_db_handle_monitor_command (char *);