61baf725ec
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
329 lines
6.8 KiB
C
329 lines
6.8 KiB
C
/* Target-dependent code for OpenBSD.
|
|
|
|
Copyright (C) 2005-2017 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "defs.h"
|
|
#include "frame.h"
|
|
#include "symtab.h"
|
|
#include "objfiles.h"
|
|
|
|
#include "obsd-tdep.h"
|
|
|
|
CORE_ADDR
|
|
obsd_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc)
|
|
{
|
|
struct bound_minimal_symbol msym;
|
|
|
|
msym = lookup_minimal_symbol("_dl_bind", NULL, NULL);
|
|
if (msym.minsym && BMSYMBOL_VALUE_ADDRESS (msym) == pc)
|
|
return frame_unwind_caller_pc (get_current_frame ());
|
|
else
|
|
return find_solib_trampoline_target (get_current_frame (), pc);
|
|
}
|
|
|
|
/* OpenBSD signal numbers. From <sys/signal.h>. */
|
|
|
|
enum
|
|
{
|
|
OBSD_SIGHUP = 1,
|
|
OBSD_SIGINT = 2,
|
|
OBSD_SIGQUIT = 3,
|
|
OBSD_SIGILL = 4,
|
|
OBSD_SIGTRAP = 5,
|
|
OBSD_SIGABRT = 6,
|
|
OBSD_SIGEMT = 7,
|
|
OBSD_SIGFPE = 8,
|
|
OBSD_SIGKILL = 9,
|
|
OBSD_SIGBUS = 10,
|
|
OBSD_SIGSEGV = 11,
|
|
OBSD_SIGSYS = 12,
|
|
OBSD_SIGPIPE = 13,
|
|
OBSD_SIGALRM = 14,
|
|
OBSD_SIGTERM = 15,
|
|
OBSD_SIGURG = 16,
|
|
OBSD_SIGSTOP = 17,
|
|
OBSD_SIGTSTP = 18,
|
|
OBSD_SIGCONT = 19,
|
|
OBSD_SIGCHLD = 20,
|
|
OBSD_SIGTTIN = 21,
|
|
OBSD_SIGTTOU = 22,
|
|
OBSD_SIGIO = 23,
|
|
OBSD_SIGXCPU = 24,
|
|
OBSD_SIGXFSZ = 25,
|
|
OBSD_SIGVTALRM = 26,
|
|
OBSD_SIGPROF = 27,
|
|
OBSD_SIGWINCH = 28,
|
|
OBSD_SIGINFO = 29,
|
|
OBSD_SIGUSR1 = 30,
|
|
OBSD_SIGUSR2 = 31,
|
|
OBSD_SIGTHR = 32,
|
|
};
|
|
|
|
/* Implement the "gdb_signal_from_target" gdbarch method. */
|
|
|
|
static enum gdb_signal
|
|
obsd_gdb_signal_from_target (struct gdbarch *gdbarch, int signal)
|
|
{
|
|
switch (signal)
|
|
{
|
|
case 0:
|
|
return GDB_SIGNAL_0;
|
|
|
|
case OBSD_SIGHUP:
|
|
return GDB_SIGNAL_HUP;
|
|
|
|
case OBSD_SIGINT:
|
|
return GDB_SIGNAL_INT;
|
|
|
|
case OBSD_SIGQUIT:
|
|
return GDB_SIGNAL_QUIT;
|
|
|
|
case OBSD_SIGILL:
|
|
return GDB_SIGNAL_ILL;
|
|
|
|
case OBSD_SIGTRAP:
|
|
return GDB_SIGNAL_TRAP;
|
|
|
|
case OBSD_SIGABRT:
|
|
return GDB_SIGNAL_ABRT;
|
|
|
|
case OBSD_SIGEMT:
|
|
return GDB_SIGNAL_EMT;
|
|
|
|
case OBSD_SIGFPE:
|
|
return GDB_SIGNAL_FPE;
|
|
|
|
case OBSD_SIGKILL:
|
|
return GDB_SIGNAL_KILL;
|
|
|
|
case OBSD_SIGBUS:
|
|
return GDB_SIGNAL_BUS;
|
|
|
|
case OBSD_SIGSEGV:
|
|
return GDB_SIGNAL_SEGV;
|
|
|
|
case OBSD_SIGSYS:
|
|
return GDB_SIGNAL_SYS;
|
|
|
|
case OBSD_SIGPIPE:
|
|
return GDB_SIGNAL_PIPE;
|
|
|
|
case OBSD_SIGALRM:
|
|
return GDB_SIGNAL_ALRM;
|
|
|
|
case OBSD_SIGTERM:
|
|
return GDB_SIGNAL_TERM;
|
|
|
|
case OBSD_SIGURG:
|
|
return GDB_SIGNAL_URG;
|
|
|
|
case OBSD_SIGSTOP:
|
|
return GDB_SIGNAL_STOP;
|
|
|
|
case OBSD_SIGTSTP:
|
|
return GDB_SIGNAL_TSTP;
|
|
|
|
case OBSD_SIGCONT:
|
|
return GDB_SIGNAL_CONT;
|
|
|
|
case OBSD_SIGCHLD:
|
|
return GDB_SIGNAL_CHLD;
|
|
|
|
case OBSD_SIGTTIN:
|
|
return GDB_SIGNAL_TTIN;
|
|
|
|
case OBSD_SIGTTOU:
|
|
return GDB_SIGNAL_TTOU;
|
|
|
|
case OBSD_SIGIO:
|
|
return GDB_SIGNAL_IO;
|
|
|
|
case OBSD_SIGXCPU:
|
|
return GDB_SIGNAL_XCPU;
|
|
|
|
case OBSD_SIGXFSZ:
|
|
return GDB_SIGNAL_XFSZ;
|
|
|
|
case OBSD_SIGVTALRM:
|
|
return GDB_SIGNAL_VTALRM;
|
|
|
|
case OBSD_SIGPROF:
|
|
return GDB_SIGNAL_PROF;
|
|
|
|
case OBSD_SIGWINCH:
|
|
return GDB_SIGNAL_WINCH;
|
|
|
|
case OBSD_SIGINFO:
|
|
return GDB_SIGNAL_INFO;
|
|
|
|
case OBSD_SIGUSR1:
|
|
return GDB_SIGNAL_USR1;
|
|
|
|
case OBSD_SIGUSR2:
|
|
return GDB_SIGNAL_USR2;
|
|
}
|
|
|
|
return GDB_SIGNAL_UNKNOWN;
|
|
}
|
|
|
|
/* Implement the "gdb_signal_to_target" gdbarch method. */
|
|
|
|
static int
|
|
obsd_gdb_signal_to_target (struct gdbarch *gdbarch,
|
|
enum gdb_signal signal)
|
|
{
|
|
switch (signal)
|
|
{
|
|
case GDB_SIGNAL_0:
|
|
return 0;
|
|
|
|
case GDB_SIGNAL_HUP:
|
|
return OBSD_SIGHUP;
|
|
|
|
case GDB_SIGNAL_INT:
|
|
return OBSD_SIGINT;
|
|
|
|
case GDB_SIGNAL_QUIT:
|
|
return OBSD_SIGQUIT;
|
|
|
|
case GDB_SIGNAL_ILL:
|
|
return OBSD_SIGILL;
|
|
|
|
case GDB_SIGNAL_TRAP:
|
|
return OBSD_SIGTRAP;
|
|
|
|
case GDB_SIGNAL_ABRT:
|
|
return OBSD_SIGABRT;
|
|
|
|
case GDB_SIGNAL_EMT:
|
|
return OBSD_SIGEMT;
|
|
|
|
case GDB_SIGNAL_FPE:
|
|
return OBSD_SIGFPE;
|
|
|
|
case GDB_SIGNAL_KILL:
|
|
return OBSD_SIGKILL;
|
|
|
|
case GDB_SIGNAL_BUS:
|
|
return OBSD_SIGBUS;
|
|
|
|
case GDB_SIGNAL_SEGV:
|
|
return OBSD_SIGSEGV;
|
|
|
|
case GDB_SIGNAL_SYS:
|
|
return OBSD_SIGSYS;
|
|
|
|
case GDB_SIGNAL_PIPE:
|
|
return OBSD_SIGPIPE;
|
|
|
|
case GDB_SIGNAL_ALRM:
|
|
return OBSD_SIGALRM;
|
|
|
|
case GDB_SIGNAL_TERM:
|
|
return OBSD_SIGTERM;
|
|
|
|
case GDB_SIGNAL_URG:
|
|
return OBSD_SIGURG;
|
|
|
|
case GDB_SIGNAL_STOP:
|
|
return OBSD_SIGSTOP;
|
|
|
|
case GDB_SIGNAL_TSTP:
|
|
return OBSD_SIGTSTP;
|
|
|
|
case GDB_SIGNAL_CONT:
|
|
return OBSD_SIGCONT;
|
|
|
|
case GDB_SIGNAL_CHLD:
|
|
return OBSD_SIGCHLD;
|
|
|
|
case GDB_SIGNAL_TTIN:
|
|
return OBSD_SIGTTIN;
|
|
|
|
case GDB_SIGNAL_TTOU:
|
|
return OBSD_SIGTTOU;
|
|
|
|
case GDB_SIGNAL_IO:
|
|
return OBSD_SIGIO;
|
|
|
|
case GDB_SIGNAL_XCPU:
|
|
return OBSD_SIGXCPU;
|
|
|
|
case GDB_SIGNAL_XFSZ:
|
|
return OBSD_SIGXFSZ;
|
|
|
|
case GDB_SIGNAL_VTALRM:
|
|
return OBSD_SIGVTALRM;
|
|
|
|
case GDB_SIGNAL_PROF:
|
|
return OBSD_SIGPROF;
|
|
|
|
case GDB_SIGNAL_WINCH:
|
|
return OBSD_SIGWINCH;
|
|
|
|
case GDB_SIGNAL_USR1:
|
|
return OBSD_SIGUSR1;
|
|
|
|
case GDB_SIGNAL_USR2:
|
|
return OBSD_SIGUSR2;
|
|
|
|
case GDB_SIGNAL_INFO:
|
|
return OBSD_SIGINFO;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
obsd_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr,
|
|
gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
|
|
{
|
|
struct type *int_type = builtin_type (gdbarch)->builtin_int;
|
|
struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
|
|
const int sizeof_auxv_type = TYPE_LENGTH (int_type);
|
|
const int sizeof_auxv_val = TYPE_LENGTH (ptr_type);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
gdb_byte *ptr = *readptr;
|
|
|
|
if (endptr == ptr)
|
|
return 0;
|
|
|
|
if (endptr - ptr < 2 * sizeof_auxv_val)
|
|
return -1;
|
|
|
|
*typep = extract_unsigned_integer (ptr, sizeof_auxv_type, byte_order);
|
|
ptr += sizeof_auxv_val; /* Alignment. */
|
|
*valp = extract_unsigned_integer (ptr, sizeof_auxv_val, byte_order);
|
|
ptr += sizeof_auxv_val;
|
|
|
|
*readptr = ptr;
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
set_gdbarch_gdb_signal_from_target (gdbarch,
|
|
obsd_gdb_signal_from_target);
|
|
set_gdbarch_gdb_signal_to_target (gdbarch,
|
|
obsd_gdb_signal_to_target);
|
|
|
|
/* Unlike Linux, OpenBSD actually follows the ELF standard. */
|
|
set_gdbarch_auxv_parse (gdbarch, obsd_auxv_parse);
|
|
}
|