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[PATCH] MIPS Linux signals
- From: Michael Eager <eager at eagerm dot com>
- To: "gdb-patches at sourceware dot org" <gdb-patches at sourceware dot org>
- Cc: "Maciej W. Rozycki" <macro at codesourcery dot com>, Pedro Alves <palves at redhat dot com>
- Date: Fri, 01 Jun 2012 13:21:35 -0700
- Subject: [PATCH] MIPS Linux signals
This patch adds a target function to translate MIPS Linux signals
to GDB internal signal numbers.
2012-06-01 Michael Eager <eager@eagercon.com>
* mips-linux-tdep.c (mips_gdb_signal_from_target): New
* mips-linux-tdep.h (mips_signals): New
--
Michael Eager eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306 650-325-8077
Index: gdb/mips-linux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/mips-linux-tdep.c,v
retrieving revision 1.94
diff -r1.94 mips-linux-tdep.c
42a43
> #include "gdb_signals.h"
1332a1334,1428
> /* Translate signals based on MIPS signal values.
> Adapted from gdb/common/signals.c. */
>
> static enum gdb_signal
> mips_gdb_signal_from_target (struct gdbarch *gdbarch, int signo)
> {
> switch (signo)
> {
> case 0:
> return GDB_SIGNAL_0;
> case MIPS_SIGHUP:
> return GDB_SIGNAL_HUP;
> case MIPS_SIGINT:
> return GDB_SIGNAL_INT;
> case MIPS_SIGQUIT:
> return GDB_SIGNAL_QUIT;
> case MIPS_SIGILL:
> return GDB_SIGNAL_ILL;
> case MIPS_SIGTRAP:
> return GDB_SIGNAL_TRAP;
> case MIPS_SIGABRT:
> return GDB_SIGNAL_ABRT;
> case MIPS_SIGEMT:
> return GDB_SIGNAL_EMT;
> case MIPS_SIGFPE:
> return GDB_SIGNAL_FPE;
> case MIPS_SIGKILL:
> return GDB_SIGNAL_KILL;
> case MIPS_SIGBUS:
> return GDB_SIGNAL_BUS;
> case MIPS_SIGSEGV:
> return GDB_SIGNAL_SEGV;
> case MIPS_SIGSYS:
> return GDB_SIGNAL_SYS;
> case MIPS_SIGPIPE:
> return GDB_SIGNAL_PIPE;
> case MIPS_SIGALRM:
> return GDB_SIGNAL_ALRM;
> case MIPS_SIGTERM:
> return GDB_SIGNAL_TERM;
> case MIPS_SIGUSR1:
> return GDB_SIGNAL_USR1;
> case MIPS_SIGUSR2:
> return GDB_SIGNAL_USR2;
> case MIPS_SIGCHLD:
> return GDB_SIGNAL_CHLD;
> case MIPS_SIGPWR:
> return GDB_SIGNAL_PWR;
> case MIPS_SIGWINCH:
> return GDB_SIGNAL_WINCH;
> case MIPS_SIGURG:
> return GDB_SIGNAL_URG;
> case MIPS_SIGPOLL:
> return GDB_SIGNAL_POLL;
> case MIPS_SIGSTOP:
> return GDB_SIGNAL_STOP;
> case MIPS_SIGTSTP:
> return GDB_SIGNAL_TSTP;
> case MIPS_SIGCONT:
> return GDB_SIGNAL_CONT;
> case MIPS_SIGTTIN:
> return GDB_SIGNAL_TTIN;
> case MIPS_SIGTTOU:
> return GDB_SIGNAL_TTOU;
> case MIPS_SIGVTALRM:
> return GDB_SIGNAL_VTALRM;
> case MIPS_SIGPROF:
> return GDB_SIGNAL_PROF;
> case MIPS_SIGXCPU:
> return GDB_SIGNAL_XCPU;
> case MIPS_SIGXFSZ:
> return GDB_SIGNAL_XFSZ;
> }
>
> #if defined (REALTIME_LO)
> if (signo >= REALTIME_LO && signo < REALTIME_HI)
> {
> /* This block of GDB_SIGNAL_REALTIME value is in order. */
> if (33 <= signo && signo <= 63)
> return (enum gdb_signal)
> (signo - 33 + (int) GDB_SIGNAL_REALTIME_33);
> else if (signo == 32)
> return GDB_SIGNAL_REALTIME_32;
> else if (64 <= signo && signo <= 127)
> return (enum gdb_signal)
> (signo - 64 + (int) GDB_SIGNAL_REALTIME_64);
> else
> error ("GDB bug: unrecognized real-time signal");
> }
> #endif
>
>
> return GDB_SIGNAL_UNKNOWN;
> }
>
1416a1513,1515
> set_gdbarch_gdb_signal_from_target (gdbarch,
> mips_gdb_signal_from_target);
>
Index: gdb/mips-linux-tdep.h
===================================================================
RCS file: /cvs/src/src/gdb/mips-linux-tdep.h,v
retrieving revision 1.13
diff -r1.13 mips-linux-tdep.h
107a108,152
>
> /* 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. */
> };
>
> #define REALTIME_LO MIPS_SIGRTMIN
> #define REALTIME_HI MIPS_SIGRTMAX