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* target.h: Add enum target_waitkind, enum target_signal, and

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struct target_waitstatus.  Change status argument to target_wait to
	be struct target_waitstatus * instead of int *.
	* target.h, infrun.c, all targets: Change type of signal arguments
	to resume(), proceed(), and target_resume() from int to enum
	target_signal.
	* All targets (*_wait, *_resume): Change accordingly.
	* infcmd.c (program_info, signal_command), throughout infrun.c,
	* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
	* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
	signal code stuff right with the new signals would be non-trivial).
	* inferior.h (stop_signal): Make it enum target_signal not int.
	* target.c, target.h (target_signal_to_string, target_signal_to_name,
	target_signal_from_name): New functions.
	* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
	store_waitstatus): New functions.
	* procfs.c (procfs_notice_signals): Use them.
	* i960-tdep.c (i960_fault_to_signal): New function, to replace
	print_fault.
	* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
This commit is contained in:
Jim Kingdon
1994-01-04 21:53:53 +00:00
parent e14316e7fe
commit 67ac975911
32 changed files with 1166 additions and 7959 deletions
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149
gdb/target.h
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@@ -49,6 +49,118 @@ enum strata {
process_stratum /* Executing processes */
};
/* 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 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. */
/* 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_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,
/* Some signal we don't know about. */
TARGET_SIGNAL_UNKNOWN,
/* Last and unused enum value, for sizing arrays, etc. */
TARGET_SIGNAL_LAST
};
struct target_waitstatus {
enum target_waitkind kind;
/* Exit status or signal number. */
union {
int integer;
enum target_signal sig;
} 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 *));
struct target_ops
{
char *to_shortname; /* Name this target type */
@@ -60,8 +172,8 @@ struct target_ops
void (*to_close) PARAMS ((int));
void (*to_attach) PARAMS ((char *, int));
void (*to_detach) PARAMS ((char *, int));
void (*to_resume) PARAMS ((int, int, int));
int (*to_wait) PARAMS ((int *));
void (*to_resume) PARAMS ((int, int, enum target_signal));
int (*to_wait) PARAMS ((int, struct target_waitstatus *));
void (*to_fetch_registers) PARAMS ((int));
void (*to_store_registers) PARAMS ((int));
void (*to_prepare_to_store) PARAMS ((void));
@@ -102,7 +214,7 @@ struct target_ops
void (*to_create_inferior) PARAMS ((char *, char *, char **));
void (*to_mourn_inferior) PARAMS ((void));
int (*to_can_run) PARAMS ((void));
void (*to_notice_signals) PARAMS ((void));
void (*to_notice_signals) PARAMS ((int pid));
enum strata to_stratum;
struct target_ops
*to_next;
@@ -180,11 +292,12 @@ target_detach PARAMS ((char *, int));
#define target_resume(pid, step, siggnal) \
(*current_target->to_resume) (pid, step, siggnal)
/* Wait for inferior process to do something. Return pid of child,
or -1 in case of error; store status through argument pointer STATUS. */
/* 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. */
#define target_wait(status) \
(*current_target->to_wait) (status)
#define target_wait(pid, status) \
(*current_target->to_wait) (pid, status)
/* Fetch register REGNO, or all regs if regno == -1. No result. */
@@ -340,8 +453,8 @@ print_section_info PARAMS ((struct target_ops *, bfd *));
/* post process changes to signal handling in the inferior. */
#define target_notice_signals() \
(*current_target->to_notice_signals) ()
#define target_notice_signals(pid) \
(*current_target->to_notice_signals) (pid)
/* Pointer to next target in the chain, e.g. a core file and an exec file. */
@@ -461,4 +574,22 @@ find_default_create_inferior PARAMS ((char *, char *, char **));
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. */
extern int baud_rate;
/* 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));
#endif /* !defined (TARGET_H) */