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Enable rthreads supports on OpenBSD/sparc64.

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gdb/ChangeLog:

        * configure.host (sparc64-*-openbsd*): Set gdb_host to obsd64.
        * config/sparc/obsd64.mh: New file.
        * sparc64obsd-nat.c: New file.
This commit is contained in:
Mark Kettenis 2014-02-28 23:06:14 +01:00
parent ab4756af55
commit 1ed586ce1d
4 changed files with 141 additions and 1 deletions
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4
gdb/ChangeLog
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@ -1,5 +1,9 @@
2014-02-28 Mark Kettenis <kettenis@gnu.org>
* configure.host (sparc64-*-openbsd*): Set gdb_host to obsd64.
* config/sparc/obsd64.mh: New file.
* sparc64obsd-nat.c: New file.
* obsd-nat.h: New file.
* obsd-nat.c: New file.
* Makefile.in (HFILES_NO_SRCDIR): Add obsd-nat.h.

5
gdb/config/sparc/obsd64.mh Normal file
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@ -0,0 +1,5 @@
# Host: OpenBSD/sparc64
NATDEPFILES= fork-child.o inf-ptrace.o obsd-nat.o \
sparc64obsd-nat.o sparc-nat.o bsd-kvm.o
LOADLIBES= -lkvm

2
gdb/configure.host
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@ -164,7 +164,7 @@ sparc-*-netbsdelf* | sparc-*-knetbsd*-gnu)
sparc64-*-netbsd* | sparc64-*-knetbsd*-gnu)
gdb_host=nbsd64 ;;
sparc-*-openbsd*) gdb_host=nbsdelf ;;
sparc64-*-openbsd*) gdb_host=nbsd64 ;;
sparc64-*-openbsd*) gdb_host=obsd64 ;;
sparc-*-solaris2* | sparcv9-*-solaris2* | sparc64-*-solaris2*)
gdb_host=sol2
;;

131
gdb/sparc64obsd-nat.c Normal file
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@ -0,0 +1,131 @@
/* Native-dependent code for OpenBSD/sparc64.
Copyright (C) 2003-2014 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 "gdbcore.h"
#include "regcache.h"
#include "target.h"
#include "sparc64-tdep.h"
#include "sparc-nat.h"
#include "obsd-nat.h"
/* Determine whether `gregset_t' contains register REGNUM. */
static int
sparc64obsd_gregset_supplies_p (struct gdbarch *gdbarch, int regnum)
{
/* Integer registers. */
if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_G7_REGNUM)
|| (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM)
|| (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_L7_REGNUM)
|| (regnum >= SPARC_I0_REGNUM && regnum <= SPARC_I7_REGNUM))
return 1;
/* Control registers. */
if (regnum == SPARC64_PC_REGNUM
|| regnum == SPARC64_NPC_REGNUM
|| regnum == SPARC64_STATE_REGNUM
|| regnum == SPARC64_Y_REGNUM)
return 1;
return 0;
}
/* Determine whether `fpregset_t' contains register REGNUM. */
static int
sparc64obsd_fpregset_supplies_p (struct gdbarch *gdbarch, int regnum)
{
/* Floating-point registers. */
if ((regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM)
|| (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM))
return 1;
/* Control registers. */
if (regnum == SPARC64_FSR_REGNUM)
return 1;
return 0;
}
/* Support for debugging kernel virtual memory images. */
#include <sys/types.h>
#include <machine/pcb.h>
#include "bsd-kvm.h"
static int
sparc64obsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
{
u_int64_t state;
int regnum;
/* The following is true for OpenBSD 3.0:
The pcb contains %sp and %pc, %pstate and %cwp. From this
information we reconstruct the register state as it would look
when we just returned from cpu_switch(). */
/* The stack pointer shouldn't be zero. */
if (pcb->pcb_sp == 0)
return 0;
/* If the program counter is zero, this is probably a core dump, and
we can get %pc from the stack. */
if (pcb->pcb_pc == 0)
read_memory(pcb->pcb_sp + BIAS - 176 + (11 * 8),
(gdb_byte *)&pcb->pcb_pc, sizeof pcb->pcb_pc);
regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp);
regcache_raw_supply (regcache, SPARC64_PC_REGNUM, &pcb->pcb_pc);
state = pcb->pcb_pstate << 8 | pcb->pcb_cwp;
regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, &state);
sparc_supply_rwindow (regcache, pcb->pcb_sp, -1);
return 1;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_sparc64obsd_nat (void);
void
_initialize_sparc64obsd_nat (void)
{
sparc_supply_gregset = sparc64_supply_gregset;
sparc_collect_gregset = sparc64_collect_gregset;
sparc_supply_fpregset = sparc64_supply_fpregset;
sparc_collect_fpregset = sparc64_collect_fpregset;
sparc_gregset_supplies_p = sparc64obsd_gregset_supplies_p;
sparc_fpregset_supplies_p = sparc64obsd_fpregset_supplies_p;
sparc_gregset = &sparc64nbsd_gregset;
sparc_fpregset = &sparc64_bsd_fpregset;
/* Add some extra features to the generic SPARC target. */
obsd_add_target (sparc_target ());
/* Support debugging kernel virtual memory images. */
bsd_kvm_add_target (sparc64obsd_supply_pcb);
}