/* Variables that describe the inferior process running under GDB:
Where it is, why it stopped, and how to step it.
- Copyright 1986, 1989, 1992, 1996 Free Software Foundation, Inc.
+ Copyright 1986, 1989, 1992, 1996, 1998 Free Software Foundation, Inc.
This file is part of GDB.
int stop_after_trap;
int stop_soon_quietly;
CORE_ADDR selected_frame_address;
- int selected_level;
char stop_registers[REGISTER_BYTES];
/* These are here because if call_function_by_hand has written some
any registers. */
char registers[REGISTER_BYTES];
+ int selected_level;
int breakpoint_proceeded;
int restore_stack_info;
int proceed_to_finish;
extern int inferior_pid;
+/* This is only valid when inferior_pid is non-zero.
+
+ If this is 0, then exec events should be noticed and responded to
+ by the debugger (i.e., be reported to the user).
+
+ If this is > 0, then that many subsequent exec events should be
+ ignored (i.e., not be reported to the user).
+ */
+extern int inferior_ignoring_startup_exec_events;
+
+/* This is only valid when inferior_ignoring_startup_exec_events is
+ zero.
+
+ Some targets (stupidly) report more than one exec event per actual
+ call to an event() system call. If only the last such exec event
+ need actually be noticed and responded to by the debugger (i.e.,
+ be reported to the user), then this is the number of "leading"
+ exec events which should be ignored.
+ */
+extern int inferior_ignoring_leading_exec_events;
+
/* Inferior environment. */
extern struct environ *inferior_environ;
extern char registers[];
/* Array of validity bits (one per register). Nonzero at position XXX_REGNUM
- means that `registers' contains a valid copy of inferior register XXX. */
+ means that `registers' contains a valid copy of inferior register XXX.
+ -1 if register value is not available. */
-extern char register_valid[NUM_REGS];
+extern SIGNED char register_valid[NUM_REGS];
extern void clear_proceed_status PARAMS ((void));
extern void write_pc PARAMS ((CORE_ADDR));
+extern void write_pc_pid PARAMS ((CORE_ADDR, int));
+
extern CORE_ADDR read_sp PARAMS ((void));
extern void write_sp PARAMS ((CORE_ADDR));
extern void terminal_init_inferior PARAMS ((void));
-#ifdef PROCESS_GROUP_TYPE
-extern void terminal_init_inferior_with_pgrp PARAMS ((PROCESS_GROUP_TYPE pgrp));
-#endif
+extern void terminal_init_inferior_with_pgrp PARAMS ((int pgrp));
-/* From infptrace.c */
+/* From infptrace.c or infttrace.c */
extern int attach PARAMS ((int));
-void detach PARAMS ((int));
+#if !defined(REQUIRE_ATTACH)
+#define REQUIRE_ATTACH attach
+#endif
+
+#if !defined(REQUIRE_DETACH)
+#define REQUIRE_DETACH(pid,siggnal) detach (siggnal)
+#endif
+
+extern void detach PARAMS ((int));
+
+int proc_wait PARAMS ((int, int *));
extern void child_resume PARAMS ((int, int, enum target_signal));
extern int call_ptrace PARAMS ((int, int, PTRACE_ARG3_TYPE, int));
+extern void pre_fork_inferior PARAMS ((void));
+
/* From procfs.c */
extern int proc_iterate_over_mappings PARAMS ((int (*) (int, CORE_ADDR)));
+extern int procfs_first_available PARAMS ((void));
+
+extern int procfs_get_pid_fd PARAMS ((int));
+
/* From fork-child.c */
extern void fork_inferior PARAMS ((char *, char *, char **,
- void (*) (void),
- int (*) (int), char *));
+ void (*) (void),
+ void (*) (int),
+ void (*) (void),
+ char *));
+
+
+extern void
+clone_and_follow_inferior PARAMS ((int, int *));
extern void startup_inferior PARAMS ((int));
#if !defined (IN_SIGTRAMP)
# if defined (SIGTRAMP_START)
# define IN_SIGTRAMP(pc, name) \
- ((pc) >= SIGTRAMP_START \
- && (pc) < SIGTRAMP_END \
+ ((pc) >= SIGTRAMP_START(pc) \
+ && (pc) < SIGTRAMP_END(pc) \
)
# else
# define IN_SIGTRAMP(pc, name) \
allocate other kinds of code on the stack. */
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
- ((sp) INNER_THAN (pc) && (frame_address != 0) && (pc) INNER_THAN (frame_address))
+ (INNER_THAN ((sp), (pc)) && (frame_address != 0) && INNER_THAN ((pc), (frame_address)))
#endif /* On stack. */
#if CALL_DUMMY_LOCATION == AT_ENTRY_POINT
#endif /* At entry point. */
#endif /* No PC_IN_CALL_DUMMY. */
+/* It's often not enough for our clients to know whether the PC is merely
+ somewhere within the call dummy. They may need to know whether the
+ call dummy has actually completed. (For example, wait_for_inferior
+ wants to know when it should truly stop because the call dummy has
+ completed. If we're single-stepping because of slow watchpoints,
+ then we may find ourselves stopped at the entry of the call dummy,
+ and want to continue stepping until we reach the end.)
+
+ Note that this macro is intended for targets (like HP-UX) which
+ require more than a single breakpoint in their call dummies, and
+ therefore cannot use the CALL_DUMMY_BREAKPOINT_OFFSET mechanism.
+
+ If a target does define CALL_DUMMY_BREAKPOINT_OFFSET, then this
+ default implementation of CALL_DUMMY_HAS_COMPLETED is sufficient.
+ Else, a target may wish to supply an implementation that works in
+ the presense of multiple breakpoints in its call dummy.
+ */
+#if !defined(CALL_DUMMY_HAS_COMPLETED)
+#define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \
+ PC_IN_CALL_DUMMY((pc), (sp), (frame_address))
+#endif
+
+/* If STARTUP_WITH_SHELL is set, GDB's "run"
+ will attempts to start up the debugee under a shell.
+ This is in order for argument-expansion to occur. E.g.,
+ (gdb) run *
+ The "*" gets expanded by the shell into a list of files.
+ While this is a nice feature, it turns out to interact badly
+ with some of the catch-fork/catch-exec features we have added.
+ In particular, if the shell does any fork/exec's before
+ the exec of the target program, that can confuse GDB.
+ To disable this feature, set STARTUP_WITH_SHELL to 0.
+ To enable this feature, set STARTUP_WITH_SHELL to 1.
+ The catch-exec traps expected during start-up will
+ be 1 if target is not started up with a shell, 2 if it is.
+ - RT
+ If you disable this, you need to decrement
+ START_INFERIOR_TRAPS_EXPECTED in tm.h. */
+#define STARTUP_WITH_SHELL 1
+
#endif /* !defined (INFERIOR_H) */
+
projects / deliverable / binutils-gdb.git / blobdiff