This patch implements the new gdbarch method gdbarch_gdb_signal_to_target.

It will be used when one wants to convert between the internal GDB signal
representation (enum gdb_signal) and the target's representation.

The idea of this patch came from a chat between Pedro and I on IRC, plus
the discussion of my patches to add the new $_exitsignal convenience
variable:

	<http://sourceware.org/ml/gdb-patches/2013-06/msg00452.html>
	<http://sourceware.org/ml/gdb-patches/2013-06/msg00352.html>

What I did was to investigate, on the Linux kernel, which targets shared
the signal numbers definition with the generic definition, present at
<include/uapi/asm-generic/signal.h>.  For the record, I used linux-3.10-rc7
as the main source of information, always looking at
<arch/<ARCH_NAME>/include/uapi/asm/signal.h>.  For SIGRTMAX (which defaults
to _NSIG in most cases), I had to look at different signal-related
files, but most of them (except MIPS) were defined to 64 anyway.

Then, with all the differences in hand, I implemented the bits on each
target.

2013-08-09  Sergio Durigan Junior  <sergiodj@redhat.com>

	* linux-tdep.c: Define enum with generic signal numbers.
	(linux_gdb_signal_from_target): New function.
	(linux_gdb_signal_to_target): Likewise.
	(linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target
	methods to the functions above.
	* linux-tdep.h (linux_gdb_signal_from_target): New prototype.
	(linux_gdb_signal_to_target): Likewise.
	* alpha-linux-tdep.c: Define new enum with signals different
	from generic Linux kernel.
	(alpha_linux_gdb_signal_from_target): New function.
	(alpha_linux_gdb_signal_to_target): Likewise.
	(alpha_linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target
	with the functions mentioned above.
	* avr-tdep.c: Define enum with differences between Linux kernel
	and AVR signals.
	(avr_linux_gdb_signal_from_target): New function.
	(avr_linux_gdb_signal_to_target): Likewise.
	(avr_gdbarch_init): Set gdbarch_gdb_signal_{to,from}_target to
	the functions mentioned above.
	* sparc-linux-tdep.c: Define enum with differences between SPARC
	and generic Linux kernel signal numbers.
	(sparc32_linux_gdb_signal_from_target): New function.
	(sparc32_linux_gdb_signal_to_target): Likewise.
	(sparc32_linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target
	to the functions defined above.
	* xtensa-linux-tdep.c: Define enum with differences between
	Xtensa and Linux kernel generic signals.
	(xtensa_linux_gdb_signal_from_target): New function.
	(xtensa_linux_gdb_signal_to_target): Likewise.
	(xtensa_linux_init_abi): Set gdbarch_gdb_signal_to_target
	to the functions defined above.
	* mips-linux-tdep.c: Define enum with differences between
	signals in MIPS and Linux kernel generic ones.
	(mips_gdb_signal_to_target): New function.
	(mips_gdb_signal_from_target): Redefine to use new enum, handle
	only different signals from the Linux kernel generic.
	(mips_linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target
	the functions defined above.
	* mips-linux-tdep.h (enum mips_signals): Remove.

1 files changed, 0 insertions, 42 deletions

diff --git a/gdb/mips-linux-tdep.h b/gdb/mips-linux-tdep.h
index 09cbc13114..482d3c5329 100644
--- a/gdb/mips-linux-tdep.h
+++ b/gdb/mips-linux-tdep.h
@@ -105,45 +105,3 @@ enum {
 /* Return 1 if MIPS_RESTART_REGNUM is usable.  */
 
 int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
-
-/* MIPS Signals -- adapted from linux/arch/mips/include/asm/signal.h.  */
-
-enum mips_signals 
-  {
-    MIPS_SIGHUP    =  1,	/* Hangup (POSIX).  */
-    MIPS_SIGINT    =  2,	/* Interrupt (ANSI).  */
-    MIPS_SIGQUIT   =  3,	/* Quit (POSIX).  */
-    MIPS_SIGILL    =  4,	/* Illegal instruction (ANSI).  */
-    MIPS_SIGTRAP   =  5,	/* Trace trap (POSIX).  */
-    MIPS_SIGIOT    =  6,	/* IOT trap (4.2 BSD).  */
-    MIPS_SIGABRT   =  MIPS_SIGIOT, /* Abort (ANSI).  */
-    MIPS_SIGEMT    =  7,
-    MIPS_SIGFPE    =  8,	/* Floating-point exception (ANSI).  */
-    MIPS_SIGKILL   =  9,	/* Kill, unblockable (POSIX).  */
-    MIPS_SIGBUS    = 10,	/* BUS error (4.2 BSD).  */
-    MIPS_SIGSEGV   = 11,	/* Segmentation violation (ANSI).  */
-    MIPS_SIGSYS    = 12,
-    MIPS_SIGPIPE   = 13,	/* Broken pipe (POSIX).  */
-    MIPS_SIGALRM   = 14,	/* Alarm clock (POSIX).  */
-    MIPS_SIGTERM   = 15,	/* Termination (ANSI).  */
-    MIPS_SIGUSR1   = 16,	/* User-defined signal 1 (POSIX).  */
-    MIPS_SIGUSR2   = 17,	/* User-defined signal 2 (POSIX).  */
-    MIPS_SIGCHLD   = 18,	/* Child status has changed (POSIX).  */
-    MIPS_SIGCLD    = MIPS_SIGCHLD, /* Same as SIGCHLD (System V).  */
-    MIPS_SIGPWR    = 19,	/* Power failure restart (System V).  */
-    MIPS_SIGWINCH  = 20,	/* Window size change (4.3 BSD, Sun).  */
-    MIPS_SIGURG    = 21,	/* Urgent condition on socket (4.2 BSD).  */
-    MIPS_SIGIO     = 22,	/* I/O now possible (4.2 BSD).  */
-    MIPS_SIGPOLL   = MIPS_SIGIO, /* Pollable event occurred (System V).  */
-    MIPS_SIGSTOP   = 23,	/* Stop, unblockable (POSIX).  */
-    MIPS_SIGTSTP   = 24,	/* Keyboard stop (POSIX).  */
-    MIPS_SIGCONT   = 25,	/* Continue (POSIX).  */
-    MIPS_SIGTTIN   = 26,	/* Background read from tty (POSIX).  */
-    MIPS_SIGTTOU   = 27,	/* Background write to tty (POSIX).  */
-    MIPS_SIGVTALRM = 28,	/* Virtual alarm clock (4.2 BSD).  */
-    MIPS_SIGPROF   = 29,	/* Profiling alarm clock (4.2 BSD).  */
-    MIPS_SIGXCPU   = 30,	/* CPU limit exceeded (4.2 BSD).  */
-    MIPS_SIGXFSZ   = 31,	/* File size limit exceeded (4.2 BSD).  */
-    MIPS_SIGRTMIN  = 32,	/* Minimum RT signal.  */
-    MIPS_SIGRTMAX  = 128 - 1	/* Maximum RT signal.  */
-  };