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Implement the "gdb_signal_to/from_target" gdbarch methods for FreeBSD.

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This fixes failures in the gdb.base/exitsignal.exp test.

gdb/ChangeLog:

	PR gdb/23093
	* gdb/fbsd-tdep.c (fbsd_gdb_signal_from_target)
	(fbsd_gdb_signal_to_target): New.
	(fbsd_init_abi): Install gdbarch "signal_from_target" and
	"signal_to_target" methods.
This commit is contained in:
Rajendra SY 2018-11-29 13:26:31 -08:00 committed by John Baldwin
parent 12951a2f08
commit e61667ef14
2 changed files with 293 additions and 0 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2018-11-29 Rajendra SY <rajendra.sy@gmail.com>
PR gdb/23093
* gdb/fbsd-tdep.c (fbsd_gdb_signal_from_target)
(fbsd_gdb_signal_to_target): New.
(fbsd_init_abi): Install gdbarch "signal_from_target" and
"signal_to_target" methods.
2018-11-29 Tom Tromey <tom@tromey.com>
* valarith.c (value_x_unop): Don't set argvec[3].

285
gdb/fbsd-tdep.c
View File

@ -31,6 +31,46 @@
#include "elf-bfd.h"
#include "fbsd-tdep.h"
/* This enum is derived from FreeBSD's <sys/signal.h>. */
enum
{
FREEBSD_SIGHUP = 1,
FREEBSD_SIGINT = 2,
FREEBSD_SIGQUIT = 3,
FREEBSD_SIGILL = 4,
FREEBSD_SIGTRAP = 5,
FREEBSD_SIGABRT = 6,
FREEBSD_SIGEMT = 7,
FREEBSD_SIGFPE = 8,
FREEBSD_SIGKILL = 9,
FREEBSD_SIGBUS = 10,
FREEBSD_SIGSEGV = 11,
FREEBSD_SIGSYS = 12,
FREEBSD_SIGPIPE = 13,
FREEBSD_SIGALRM = 14,
FREEBSD_SIGTERM = 15,
FREEBSD_SIGURG = 16,
FREEBSD_SIGSTOP = 17,
FREEBSD_SIGTSTP = 18,
FREEBSD_SIGCONT = 19,
FREEBSD_SIGCHLD = 20,
FREEBSD_SIGTTIN = 21,
FREEBSD_SIGTTOU = 22,
FREEBSD_SIGIO = 23,
FREEBSD_SIGXCPU = 24,
FREEBSD_SIGXFSZ = 25,
FREEBSD_SIGVTALRM = 26,
FREEBSD_SIGPROF = 27,
FREEBSD_SIGWINCH = 28,
FREEBSD_SIGINFO = 29,
FREEBSD_SIGUSR1 = 30,
FREEBSD_SIGUSR2 = 31,
FREEBSD_SIGTHR = 32,
FREEBSD_SIGLIBRT = 33,
FREEBSD_SIGRTMIN = 65,
FREEBSD_SIGRTMAX = 126,
};
/* FreeBSD kernels 12.0 and later include a copy of the
'ptrace_lwpinfo' structure returned by the PT_LWPINFO ptrace
@ -1634,6 +1674,249 @@ fbsd_get_siginfo_type (struct gdbarch *gdbarch)
return siginfo_type;
}
/* Implement the "gdb_signal_from_target" gdbarch method. */
static enum gdb_signal
fbsd_gdb_signal_from_target (struct gdbarch *gdbarch, int signal)
{
switch (signal)
{
case 0:
return GDB_SIGNAL_0;
case FREEBSD_SIGHUP:
return GDB_SIGNAL_HUP;
case FREEBSD_SIGINT:
return GDB_SIGNAL_INT;
case FREEBSD_SIGQUIT:
return GDB_SIGNAL_QUIT;
case FREEBSD_SIGILL:
return GDB_SIGNAL_ILL;
case FREEBSD_SIGTRAP:
return GDB_SIGNAL_TRAP;
case FREEBSD_SIGABRT:
return GDB_SIGNAL_ABRT;
case FREEBSD_SIGEMT:
return GDB_SIGNAL_EMT;
case FREEBSD_SIGFPE:
return GDB_SIGNAL_FPE;
case FREEBSD_SIGKILL:
return GDB_SIGNAL_KILL;
case FREEBSD_SIGBUS:
return GDB_SIGNAL_BUS;
case FREEBSD_SIGSEGV:
return GDB_SIGNAL_SEGV;
case FREEBSD_SIGSYS:
return GDB_SIGNAL_SYS;
case FREEBSD_SIGPIPE:
return GDB_SIGNAL_PIPE;
case FREEBSD_SIGALRM:
return GDB_SIGNAL_ALRM;
case FREEBSD_SIGTERM:
return GDB_SIGNAL_TERM;
case FREEBSD_SIGURG:
return GDB_SIGNAL_URG;
case FREEBSD_SIGSTOP:
return GDB_SIGNAL_STOP;
case FREEBSD_SIGTSTP:
return GDB_SIGNAL_TSTP;
case FREEBSD_SIGCONT:
return GDB_SIGNAL_CONT;
case FREEBSD_SIGCHLD:
return GDB_SIGNAL_CHLD;
case FREEBSD_SIGTTIN:
return GDB_SIGNAL_TTIN;
case FREEBSD_SIGTTOU:
return GDB_SIGNAL_TTOU;
case FREEBSD_SIGIO:
return GDB_SIGNAL_IO;
case FREEBSD_SIGXCPU:
return GDB_SIGNAL_XCPU;
case FREEBSD_SIGXFSZ:
return GDB_SIGNAL_XFSZ;
case FREEBSD_SIGVTALRM:
return GDB_SIGNAL_VTALRM;
case FREEBSD_SIGPROF:
return GDB_SIGNAL_PROF;
case FREEBSD_SIGWINCH:
return GDB_SIGNAL_WINCH;
case FREEBSD_SIGINFO:
return GDB_SIGNAL_INFO;
case FREEBSD_SIGUSR1:
return GDB_SIGNAL_USR1;
case FREEBSD_SIGUSR2:
return GDB_SIGNAL_USR2;
/* SIGTHR is the same as SIGLWP on FreeBSD. */
case FREEBSD_SIGTHR:
return GDB_SIGNAL_LWP;
case FREEBSD_SIGLIBRT:
return GDB_SIGNAL_LIBRT;
}
if (signal >= FREEBSD_SIGRTMIN && signal <= FREEBSD_SIGRTMAX)
{
int offset = signal - FREEBSD_SIGRTMIN;
return (enum gdb_signal) ((int) GDB_SIGNAL_REALTIME_65 + offset);
}
return GDB_SIGNAL_UNKNOWN;
}
/* Implement the "gdb_signal_to_target" gdbarch method. */
static int
fbsd_gdb_signal_to_target (struct gdbarch *gdbarch,
enum gdb_signal signal)
{
switch (signal)
{
case GDB_SIGNAL_0:
return 0;
case GDB_SIGNAL_HUP:
return FREEBSD_SIGHUP;
case GDB_SIGNAL_INT:
return FREEBSD_SIGINT;
case GDB_SIGNAL_QUIT:
return FREEBSD_SIGQUIT;
case GDB_SIGNAL_ILL:
return FREEBSD_SIGILL;
case GDB_SIGNAL_TRAP:
return FREEBSD_SIGTRAP;
case GDB_SIGNAL_ABRT:
return FREEBSD_SIGABRT;
case GDB_SIGNAL_EMT:
return FREEBSD_SIGEMT;
case GDB_SIGNAL_FPE:
return FREEBSD_SIGFPE;
case GDB_SIGNAL_KILL:
return FREEBSD_SIGKILL;
case GDB_SIGNAL_BUS:
return FREEBSD_SIGBUS;
case GDB_SIGNAL_SEGV:
return FREEBSD_SIGSEGV;
case GDB_SIGNAL_SYS:
return FREEBSD_SIGSYS;
case GDB_SIGNAL_PIPE:
return FREEBSD_SIGPIPE;
case GDB_SIGNAL_ALRM:
return FREEBSD_SIGALRM;
case GDB_SIGNAL_TERM:
return FREEBSD_SIGTERM;
case GDB_SIGNAL_URG:
return FREEBSD_SIGURG;
case GDB_SIGNAL_STOP:
return FREEBSD_SIGSTOP;
case GDB_SIGNAL_TSTP:
return FREEBSD_SIGTSTP;
case GDB_SIGNAL_CONT:
return FREEBSD_SIGCONT;
case GDB_SIGNAL_CHLD:
return FREEBSD_SIGCHLD;
case GDB_SIGNAL_TTIN:
return FREEBSD_SIGTTIN;
case GDB_SIGNAL_TTOU:
return FREEBSD_SIGTTOU;
case GDB_SIGNAL_IO:
return FREEBSD_SIGIO;
case GDB_SIGNAL_XCPU:
return FREEBSD_SIGXCPU;
case GDB_SIGNAL_XFSZ:
return FREEBSD_SIGXFSZ;
case GDB_SIGNAL_VTALRM:
return FREEBSD_SIGVTALRM;
case GDB_SIGNAL_PROF:
return FREEBSD_SIGPROF;
case GDB_SIGNAL_WINCH:
return FREEBSD_SIGWINCH;
case GDB_SIGNAL_INFO:
return FREEBSD_SIGINFO;
case GDB_SIGNAL_USR1:
return FREEBSD_SIGUSR1;
case GDB_SIGNAL_USR2:
return FREEBSD_SIGUSR2;
case GDB_SIGNAL_LWP:
return FREEBSD_SIGTHR;
case GDB_SIGNAL_LIBRT:
return FREEBSD_SIGLIBRT;
}
if (signal >= GDB_SIGNAL_REALTIME_65
&& signal <= GDB_SIGNAL_REALTIME_126)
{
int offset = signal - GDB_SIGNAL_REALTIME_65;
return FREEBSD_SIGRTMIN + offset;
}
return -1;
}
/* Implement the "get_syscall_number" gdbarch method. */
static LONGEST
@ -1661,6 +1944,8 @@ fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_core_info_proc (gdbarch, fbsd_core_info_proc);
set_gdbarch_print_auxv_entry (gdbarch, fbsd_print_auxv_entry);
set_gdbarch_get_siginfo_type (gdbarch, fbsd_get_siginfo_type);
set_gdbarch_gdb_signal_from_target (gdbarch, fbsd_gdb_signal_from_target);
set_gdbarch_gdb_signal_to_target (gdbarch, fbsd_gdb_signal_to_target);
/* `catch syscall' */
set_xml_syscall_file_name (gdbarch, "syscalls/freebsd.xml");