Attachment #178528 for bug #215783

View | Details | Raw Unified | Return to bug 215783
Collapse All | Expand All

Lines 3-8 Link Here

(-)Makefile (-1 / +4 lines)
3		3
4	PORTNAME= gdb	4	PORTNAME= gdb
5	PORTVERSION= 7.12	5	PORTVERSION= 7.12
		6	PORTREVISION= 1
6	CATEGORIES= devel	7	CATEGORIES= devel
7	MASTER_SITES= GNU	8	MASTER_SITES= GNU
8		9
Lines 30-41 Link Here
30	CFLAGS+= -DRL_NO_COMPAT -Wno-unused-function -Wno-unused-variable	31	CFLAGS+= -DRL_NO_COMPAT -Wno-unused-function -Wno-unused-variable
31	EXCLUDE= dejagnu expect sim texinfo intl	32	EXCLUDE= dejagnu expect sim texinfo intl
32	EXTRACT_AFTER_ARGS= ${EXCLUDE:S/^/--exclude /}	33	EXTRACT_AFTER_ARGS= ${EXCLUDE:S/^/--exclude /}
		34	EXTRA_PATCHES= ${FILESDIR}/commit-387360daf9 \
		35	${FILESDIR}/commit-b268007c68
33	LIB_DEPENDS+= libexpat.so:textproc/expat2	36	LIB_DEPENDS+= libexpat.so:textproc/expat2
34		37
35	VER= ${PORTVERSION:S/.//g}	38	VER= ${PORTVERSION:S/.//g}
36	PLIST_SUB= VER=${VER}	39	PLIST_SUB= VER=${VER}
37		40
38	ONLY_FOR_ARCHS= i386 amd64 powerpc powerpc64 armv6 # untested elsewhere, might work	41	ONLY_FOR_ARCHS= i386 amd64 powerpc powerpc64 armv6 mips # untested elsewhere, might work
39		42
40	OPTIONS_DEFINE= DEBUG GDB_LINK GUILE KGDB PYTHON TUI	43	OPTIONS_DEFINE= DEBUG GDB_LINK GUILE KGDB PYTHON TUI
41		44




commit 9978d70207d8a6bc7ff3c570814053c68e78b913
Author: John Baldwin <jhb@FreeBSD.org>
Date:   Wed Jan 4 09:41:58 2017 -0800

    Add FreeBSD/mips architecture.
    
    This has been tested for the n64 and o32 ABIs.  Signal frame unwinders for
    both ABIs are provided.  FreeBSD/mips requires custom linkmap offsets since
    it contains an additional l_off member in 'struct link_map' that other
    FreeBSD platforms do not have.  Support for collecting and supplying
    general purpose and floating point register sets are provided.  Common
    routines for working with native format register sets are exported for
    use by the native target.
    
    gdb/ChangeLog:
    
            * Makefile.in (ALL_TARGET_OBS): Add mips-fbsd-tdep.o.
            (ALLDEPFILES): Add mips-fbsd-tdep.c.
            * NEWS: Mention new FreeBSD/mips target.
            * configure.tgt: Add mips*-*-freebsd*.
            * mips-fbsd-tdep.c: New file.
            * mips-fbsd-tdep.h: New file.
    
    gdb/doc/ChangeLog:
    
            * gdb.texinfo (Contributors): Add SRI International and University
            of Cambridge for FreeBSD/mips.

diff --git gdb/Makefile.in gdb/Makefile.in
index 7b2df86878..300c2cb702 100644
--- gdb/Makefile.in
+++ gdb/Makefile.in
@@ -685,6 +685,7 @@ ALL_TARGET_OBS = \
 	m88k-tdep.o \
 	mep-tdep.o \
 	microblaze-tdep.o microblaze-linux-tdep.o \
+	mips-fbsd-tdep.o \
 	mips-linux-tdep.o mips-sde-tdep.o \
 	mipsnbsd-tdep.o mips-tdep.o \
 	mn10300-linux-tdep.o mn10300-tdep.o \
@@ -1724,6 +1725,7 @@ ALLDEPFILES = \
 	m88k-tdep.c m88kbsd-nat.c \
 	microblaze-tdep.c microblaze-linux-tdep.c \
 	mingw-hdep.c common/mingw-strerror.c \
+	mips-fbsd-tdep.c \
 	mips-linux-nat.c mips-linux-tdep.c \
 	mips-sde-tdep.c \
 	mips-tdep.c \
diff --git gdb/configure.tgt gdb/configure.tgt
index 7f1aac3742..9ee9f7a799 100644
--- gdb/configure.tgt
+++ gdb/configure.tgt
@@ -358,6 +358,11 @@ mips*-*-netbsd* | mips*-*-knetbsd*-gnu)
 	gdb_target_obs="mips-tdep.o mipsnbsd-tdep.o solib-svr4.o nbsd-tdep.o"
 	gdb_sim=../sim/mips/libsim.a
 	;;
+mips*-*-freebsd*)
+	# Target: MIPS running FreeBSD
+	gdb_target_obs="mips-tdep.o mips-fbsd-tdep.o solib-svr4.o fbsd-tdep.o"
+	gdb_sim=../sim/mips/libsim.a
+	;;
 mips64*-*-openbsd*)
 	# Target: OpenBSD/mips64
 	gdb_target_obs="mips-tdep.o mips64obsd-tdep.o obsd-tdep.o solib-svr4.o"
diff --git gdb/doc/gdb.texinfo gdb/doc/gdb.texinfo
index 067a45b2de..179da5cdb3 100644
--- gdb/doc/gdb.texinfo
+++ gdb/doc/gdb.texinfo
@@ -541,6 +541,11 @@ Steve Tjiang, John Newlin, and Scott Foehner.
 Michael Eager and staff of Xilinx, Inc., contributed support for the
 Xilinx MicroBlaze architecture.
 
+Initial support for the FreeBSD/mips target and native configuration
+was developed by SRI International and the University of Cambridge
+Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
+("CTSRD"), as part of the DARPA CRASH research programme.
+
 @node Sample Session
 @chapter A Sample @value{GDBN} Session
 
diff --git gdb/mips-fbsd-tdep.c gdb/mips-fbsd-tdep.c
new file mode 100644
index 0000000000..733534ddac
--- /dev/null
+++ gdb/mips-fbsd-tdep.c
@@ -0,0 +1,560 @@
+/* Target-dependent code for FreeBSD/mips.
+
+   Copyright (C) 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 "osabi.h"
+#include "regset.h"
+#include "trad-frame.h"
+#include "tramp-frame.h"
+
+#include "fbsd-tdep.h"
+#include "mips-tdep.h"
+#include "mips-fbsd-tdep.h"
+
+#include "solib-svr4.h"
+
+/* Shorthand for some register numbers used below.  */
+#define MIPS_PC_REGNUM  MIPS_EMBED_PC_REGNUM
+#define MIPS_FP0_REGNUM MIPS_EMBED_FP0_REGNUM
+#define MIPS_FSR_REGNUM MIPS_EMBED_FP0_REGNUM + 32
+
+/* Core file support. */
+
+/* Number of registers in `struct reg' from <machine/reg.h>.  The
+   first 38 follow the standard MIPS layout.  The 39th holds
+   IC_INT_REG on RM7K and RM9K processors.  The 40th is a dummy for
+   padding.  */
+#define MIPS_FBSD_NUM_GREGS	40
+
+/* Number of registers in `struct fpreg' from <machine/reg.h>.  The
+   first 32 hold floating point registers.  33 holds the FSR.  The
+   34th is a dummy for padding.  */
+#define MIPS_FBSD_NUM_FPREGS	34
+
+/* Supply a single register.  If the source register size matches the
+   size the regcache expects, this can use regcache_raw_supply().  If
+   they are different, this copies the source register into a buffer
+   that can be passed to regcache_raw_supply().  */
+
+static void
+mips_fbsd_supply_reg (struct regcache *regcache, int regnum, const void *addr,
+		      size_t len)
+{
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+
+  if (register_size (gdbarch, regnum) == len)
+    regcache_raw_supply (regcache, regnum, addr);
+  else
+    {
+      enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+      gdb_byte buf[MAX_REGISTER_SIZE];
+      LONGEST val;
+
+      val = extract_signed_integer ((const gdb_byte *) addr, len, byte_order);
+      store_signed_integer (buf, register_size (gdbarch, regnum), byte_order,
+			    val);
+      regcache_raw_supply (regcache, regnum, buf);
+    }
+}
+
+/* Collect a single register.  If the destination register size
+   matches the size the regcache expects, this can use
+   regcache_raw_supply().  If they are different, this fetches the
+   register via regcache_raw_supply() into a buffer and then copies it
+   into the final destination.  */
+
+static void
+mips_fbsd_collect_reg (const struct regcache *regcache, int regnum, void *addr,
+		       size_t len)
+{
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+
+  if (register_size (gdbarch, regnum) == len)
+    regcache_raw_collect (regcache, regnum, addr);
+  else
+    {
+      enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+      gdb_byte buf[MAX_REGISTER_SIZE];
+      LONGEST val;
+
+      regcache_raw_collect (regcache, regnum, buf);
+      val = extract_signed_integer (buf, register_size (gdbarch, regnum),
+				    byte_order);
+      store_signed_integer ((gdb_byte *) addr, len, byte_order, val);
+    }
+}
+
+/* Supply the floating-point registers stored in FPREGS to REGCACHE.
+   Each floating-point register in FPREGS is REGSIZE bytes in
+   length.  */
+
+void
+mips_fbsd_supply_fpregs (struct regcache *regcache, int regnum,
+			 const void *fpregs, size_t regsize)
+{
+  const gdb_byte *regs = (const gdb_byte *) fpregs;
+  int i;
+
+  for (i = MIPS_FP0_REGNUM; i <= MIPS_FSR_REGNUM; i++)
+    if (regnum == i || regnum == -1)
+      mips_fbsd_supply_reg (regcache, i,
+			    regs + (i - MIPS_FP0_REGNUM) * regsize, regsize);
+}
+
+/* Supply the general-purpose registers stored in GREGS to REGCACHE.
+   Each general-purpose register in GREGS is REGSIZE bytes in
+   length.  */
+
+void
+mips_fbsd_supply_gregs (struct regcache *regcache, int regnum,
+			const void *gregs, size_t regsize)
+{
+  const gdb_byte *regs = (const gdb_byte *) gregs;
+  int i;
+
+  for (i = 0; i <= MIPS_PC_REGNUM; i++)
+    if (regnum == i || regnum == -1)
+      mips_fbsd_supply_reg (regcache, i, regs + i * regsize, regsize);
+}
+
+/* Collect the floating-point registers from REGCACHE and store them
+   in FPREGS.  Each floating-point register in FPREGS is REGSIZE bytes
+   in length.  */
+
+void
+mips_fbsd_collect_fpregs (const struct regcache *regcache, int regnum,
+			  void *fpregs, size_t regsize)
+{
+  gdb_byte *regs = (gdb_byte *) fpregs;
+  int i;
+
+  for (i = MIPS_FP0_REGNUM; i <= MIPS_FSR_REGNUM; i++)
+    if (regnum == i || regnum == -1)
+      mips_fbsd_collect_reg (regcache, i,
+			     regs + (i - MIPS_FP0_REGNUM) * regsize, regsize);
+}
+
+/* Collect the general-purpose registers from REGCACHE and store them
+   in GREGS.  Each general-purpose register in GREGS is REGSIZE bytes
+   in length.  */
+
+void
+mips_fbsd_collect_gregs (const struct regcache *regcache, int regnum,
+			 void *gregs, size_t regsize)
+{
+  gdb_byte *regs = (gdb_byte *) gregs;
+  int i;
+
+  for (i = 0; i <= MIPS_PC_REGNUM; i++)
+    if (regnum == i || regnum == -1)
+      mips_fbsd_collect_reg (regcache, i, regs + i * regsize, regsize);
+}
+
+/* Supply register REGNUM from the buffer specified by FPREGS and LEN
+   in the floating-point register set REGSET to register cache
+   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */
+
+static void
+mips_fbsd_supply_fpregset (const struct regset *regset,
+			   struct regcache *regcache,
+			   int regnum, const void *fpregs, size_t len)
+{
+  size_t regsize = mips_abi_regsize (get_regcache_arch (regcache));
+
+  gdb_assert (len >= MIPS_FBSD_NUM_FPREGS * regsize);
+
+  mips_fbsd_supply_fpregs (regcache, regnum, fpregs, regsize);
+}
+
+/* Collect register REGNUM from the register cache REGCACHE and store
+   it in the buffer specified by FPREGS and LEN in the floating-point
+   register set REGSET.  If REGNUM is -1, do this for all registers in
+   REGSET.  */
+
+static void
+mips_fbsd_collect_fpregset (const struct regset *regset,
+			    const struct regcache *regcache,
+			    int regnum, void *fpregs, size_t len)
+{
+  size_t regsize = mips_abi_regsize (get_regcache_arch (regcache));
+
+  gdb_assert (len >= MIPS_FBSD_NUM_FPREGS * regsize);
+
+  mips_fbsd_collect_fpregs (regcache, regnum, fpregs, regsize);
+}
+
+/* Supply register REGNUM from the buffer specified by GREGS and LEN
+   in the general-purpose register set REGSET to register cache
+   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */
+
+static void
+mips_fbsd_supply_gregset (const struct regset *regset,
+			  struct regcache *regcache, int regnum,
+			  const void *gregs, size_t len)
+{
+  size_t regsize = mips_abi_regsize (get_regcache_arch (regcache));
+
+  gdb_assert (len >= MIPS_FBSD_NUM_GREGS * regsize);
+
+  mips_fbsd_supply_gregs (regcache, regnum, gregs, regsize);
+}
+
+/* Collect register REGNUM from the register cache REGCACHE and store
+   it in the buffer specified by GREGS and LEN in the general-purpose
+   register set REGSET.  If REGNUM is -1, do this for all registers in
+   REGSET.  */
+
+static void
+mips_fbsd_collect_gregset (const struct regset *regset,
+			   const struct regcache *regcache,
+			   int regnum, void *gregs, size_t len)
+{
+  size_t regsize = mips_abi_regsize (get_regcache_arch (regcache));
+
+  gdb_assert (len >= MIPS_FBSD_NUM_GREGS * regsize);
+
+  mips_fbsd_collect_gregs (regcache, regnum, gregs, regsize);
+}
+
+/* FreeBSD/mips register sets.  */
+
+static const struct regset mips_fbsd_gregset =
+{
+  NULL,
+  mips_fbsd_supply_gregset,
+  mips_fbsd_collect_gregset,
+};
+
+static const struct regset mips_fbsd_fpregset =
+{
+  NULL,
+  mips_fbsd_supply_fpregset,
+  mips_fbsd_collect_fpregset,
+};
+
+/* Iterate over core file register note sections.  */
+
+static void
+mips_fbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
+					iterate_over_regset_sections_cb *cb,
+					void *cb_data,
+					const struct regcache *regcache)
+{
+  size_t regsize = mips_abi_regsize (gdbarch);
+
+  cb (".reg", MIPS_FBSD_NUM_GREGS * regsize, &mips_fbsd_gregset,
+      NULL, cb_data);
+  cb (".reg2", MIPS_FBSD_NUM_FPREGS * regsize, &mips_fbsd_fpregset,
+      NULL, cb_data);
+}
+
+/* Signal trampoline support.  */
+
+#define FBSD_SYS_sigreturn	417
+
+#define MIPS_INST_LI_V0_SIGRETURN 0x24020000 + FBSD_SYS_sigreturn
+#define MIPS_INST_SYSCALL	0x0000000c
+#define MIPS_INST_BREAK		0x0000000d
+
+#define O32_SIGFRAME_UCONTEXT_OFFSET	(16)
+#define O32_SIGSET_T_SIZE	(16)
+
+#define O32_UCONTEXT_ONSTACK	(O32_SIGSET_T_SIZE)
+#define O32_UCONTEXT_PC		(O32_UCONTEXT_ONSTACK + 4)
+#define O32_UCONTEXT_REGS	(O32_UCONTEXT_PC + 4)
+#define O32_UCONTEXT_SR		(O32_UCONTEXT_REGS + 4 * 32)
+#define O32_UCONTEXT_LO		(O32_UCONTEXT_SR + 4)
+#define O32_UCONTEXT_HI		(O32_UCONTEXT_LO + 4)
+#define O32_UCONTEXT_FPUSED	(O32_UCONTEXT_HI + 4)
+#define O32_UCONTEXT_FPREGS	(O32_UCONTEXT_FPUSED + 4)
+
+#define O32_UCONTEXT_REG_SIZE	4
+
+static void
+mips_fbsd_sigframe_init (const struct tramp_frame *self,
+			 struct frame_info *this_frame,
+			 struct trad_frame_cache *cache,
+			 CORE_ADDR func)
+{
+  struct gdbarch *gdbarch = get_frame_arch (this_frame);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  CORE_ADDR sp, ucontext_addr, addr;
+  int regnum;
+  gdb_byte buf[4];
+
+  /* We find the appropriate instance of `ucontext_t' at a
+     fixed offset in the signal frame.  */
+  sp = get_frame_register_signed (this_frame,
+				  MIPS_SP_REGNUM + gdbarch_num_regs (gdbarch));
+  ucontext_addr = sp + O32_SIGFRAME_UCONTEXT_OFFSET;
+
+  /* PC.  */
+  regnum = mips_regnum (gdbarch)->pc;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + O32_UCONTEXT_PC);
+
+  /* GPRs.  */
+  for (regnum = MIPS_ZERO_REGNUM, addr = ucontext_addr + O32_UCONTEXT_REGS;
+       regnum <= MIPS_RA_REGNUM; regnum++, addr += O32_UCONTEXT_REG_SIZE)
+    trad_frame_set_reg_addr (cache,
+			     regnum + gdbarch_num_regs (gdbarch),
+			     addr);
+
+  regnum = MIPS_PS_REGNUM;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + O32_UCONTEXT_SR);
+
+  /* HI and LO.  */
+  regnum = mips_regnum (gdbarch)->lo;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + O32_UCONTEXT_LO);
+  regnum = mips_regnum (gdbarch)->hi;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + O32_UCONTEXT_HI);
+
+  if (target_read_memory (ucontext_addr + O32_UCONTEXT_FPUSED, buf, 4) == 0 &&
+      extract_unsigned_integer (buf, 4, byte_order) != 0)
+    {
+      for (regnum = 0, addr = ucontext_addr + O32_UCONTEXT_FPREGS;
+	   regnum < 32; regnum++, addr += O32_UCONTEXT_REG_SIZE)
+	trad_frame_set_reg_addr (cache,
+				 regnum + gdbarch_fp0_regnum (gdbarch),
+				 addr);
+      trad_frame_set_reg_addr (cache, mips_regnum (gdbarch)->fp_control_status,
+			       addr);
+    }
+
+  trad_frame_set_id (cache, frame_id_build (sp, func));
+}
+
+#define MIPS_INST_ADDIU_A0_SP_O32 (0x27a40000 \
+				   + O32_SIGFRAME_UCONTEXT_OFFSET)
+
+static const struct tramp_frame mips_fbsd_sigframe =
+{
+  SIGTRAMP_FRAME,
+  MIPS_INSN32_SIZE,
+  {
+    { MIPS_INST_ADDIU_A0_SP_O32, -1 },	/* addiu   a0, sp, SIGF_UC */
+    { MIPS_INST_LI_V0_SIGRETURN, -1 },	/* li      v0, SYS_sigreturn */
+    { MIPS_INST_SYSCALL, -1 },		/* syscall */
+    { MIPS_INST_BREAK, -1 },		/* break */
+    { TRAMP_SENTINEL_INSN, -1 }
+  },
+  mips_fbsd_sigframe_init
+};
+
+#define N64_SIGFRAME_UCONTEXT_OFFSET	(32)
+#define N64_SIGSET_T_SIZE	(16)
+
+#define N64_UCONTEXT_ONSTACK	(N64_SIGSET_T_SIZE)
+#define N64_UCONTEXT_PC		(N64_UCONTEXT_ONSTACK + 8)
+#define N64_UCONTEXT_REGS	(N64_UCONTEXT_PC + 8)
+#define N64_UCONTEXT_SR		(N64_UCONTEXT_REGS + 8 * 32)
+#define N64_UCONTEXT_LO		(N64_UCONTEXT_SR + 8)
+#define N64_UCONTEXT_HI		(N64_UCONTEXT_LO + 8)
+#define N64_UCONTEXT_FPUSED	(N64_UCONTEXT_HI + 8)
+#define N64_UCONTEXT_FPREGS	(N64_UCONTEXT_FPUSED + 8)
+
+#define N64_UCONTEXT_REG_SIZE	8
+
+static void
+mips64_fbsd_sigframe_init (const struct tramp_frame *self,
+			   struct frame_info *this_frame,
+			   struct trad_frame_cache *cache,
+			   CORE_ADDR func)
+{
+  struct gdbarch *gdbarch = get_frame_arch (this_frame);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  CORE_ADDR sp, ucontext_addr, addr;
+  int regnum;
+  gdb_byte buf[4];
+
+  /* We find the appropriate instance of `ucontext_t' at a
+     fixed offset in the signal frame.  */
+  sp = get_frame_register_signed (this_frame,
+				  MIPS_SP_REGNUM + gdbarch_num_regs (gdbarch));
+  ucontext_addr = sp + N64_SIGFRAME_UCONTEXT_OFFSET;
+
+  /* PC.  */
+  regnum = mips_regnum (gdbarch)->pc;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + N64_UCONTEXT_PC);
+
+  /* GPRs.  */
+  for (regnum = MIPS_ZERO_REGNUM, addr = ucontext_addr + N64_UCONTEXT_REGS;
+       regnum <= MIPS_RA_REGNUM; regnum++, addr += N64_UCONTEXT_REG_SIZE)
+    trad_frame_set_reg_addr (cache,
+			     regnum + gdbarch_num_regs (gdbarch),
+			     addr);
+
+  regnum = MIPS_PS_REGNUM;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + N64_UCONTEXT_SR);
+
+  /* HI and LO.  */
+  regnum = mips_regnum (gdbarch)->lo;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + N64_UCONTEXT_LO);
+  regnum = mips_regnum (gdbarch)->hi;
+  trad_frame_set_reg_addr (cache,
+			   regnum + gdbarch_num_regs (gdbarch),
+			   ucontext_addr + N64_UCONTEXT_HI);
+
+  if (target_read_memory (ucontext_addr + N64_UCONTEXT_FPUSED, buf, 4) == 0 &&
+      extract_unsigned_integer (buf, 4, byte_order) != 0)
+    {
+      for (regnum = 0, addr = ucontext_addr + N64_UCONTEXT_FPREGS;
+	   regnum < 32; regnum++, addr += N64_UCONTEXT_REG_SIZE)
+	trad_frame_set_reg_addr (cache,
+				 regnum + gdbarch_fp0_regnum (gdbarch),
+				 addr);
+      trad_frame_set_reg_addr (cache, mips_regnum (gdbarch)->fp_control_status,
+			       addr);
+    }
+
+  trad_frame_set_id (cache, frame_id_build (sp, func));
+}
+
+#define MIPS_INST_DADDIU_A0_SP_N64 (0x67a40000 \
+				    + N64_SIGFRAME_UCONTEXT_OFFSET)
+
+static const struct tramp_frame mips64_fbsd_sigframe =
+{
+  SIGTRAMP_FRAME,
+  MIPS_INSN32_SIZE,
+  {
+    { MIPS_INST_DADDIU_A0_SP_N64, -1 },	/* daddiu  a0, sp, SIGF_UC */
+    { MIPS_INST_LI_V0_SIGRETURN, -1 },	/* li      v0, SYS_sigreturn */
+    { MIPS_INST_SYSCALL, -1 },		/* syscall */
+    { MIPS_INST_BREAK, -1 },		/* break */
+    { TRAMP_SENTINEL_INSN, -1 }
+  },
+  mips64_fbsd_sigframe_init
+};
+
+/* Shared library support.  */
+
+/* FreeBSD/mips uses a slightly different `struct link_map' than the
+   other FreeBSD platforms as it includes an additional `l_off'
+   member.  */
+
+static struct link_map_offsets *
+mips_fbsd_ilp32_fetch_link_map_offsets (void)
+{
+  static struct link_map_offsets lmo;
+  static struct link_map_offsets *lmp = NULL;
+
+  if (lmp == NULL)
+    {
+      lmp = &lmo;
+
+      lmo.r_version_offset = 0;
+      lmo.r_version_size = 4;
+      lmo.r_map_offset = 4;
+      lmo.r_brk_offset = 8;
+      lmo.r_ldsomap_offset = -1;
+
+      lmo.link_map_size = 24;
+      lmo.l_addr_offset = 0;
+      lmo.l_name_offset = 8;
+      lmo.l_ld_offset = 12;
+      lmo.l_next_offset = 16;
+      lmo.l_prev_offset = 20;
+    }
+
+  return lmp;
+}
+
+static struct link_map_offsets *
+mips_fbsd_lp64_fetch_link_map_offsets (void)
+{
+  static struct link_map_offsets lmo;
+  static struct link_map_offsets *lmp = NULL;
+
+  if (lmp == NULL)
+    {
+      lmp = &lmo;
+
+      lmo.r_version_offset = 0;
+      lmo.r_version_size = 4;
+      lmo.r_map_offset = 8;
+      lmo.r_brk_offset = 16;
+      lmo.r_ldsomap_offset = -1;
+
+      lmo.link_map_size = 48;
+      lmo.l_addr_offset = 0;
+      lmo.l_name_offset = 16;
+      lmo.l_ld_offset = 24;
+      lmo.l_next_offset = 32;
+      lmo.l_prev_offset = 40;
+    }
+
+  return lmp;
+}
+
+static void
+mips_fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  enum mips_abi abi = mips_abi (gdbarch);
+
+  /* Generic FreeBSD support.  */
+  fbsd_init_abi (info, gdbarch);
+
+  set_gdbarch_software_single_step (gdbarch, mips_software_single_step);
+
+  switch (abi)
+    {
+      case MIPS_ABI_O32:
+	tramp_frame_prepend_unwinder (gdbarch, &mips_fbsd_sigframe);
+	break;
+      case MIPS_ABI_N32:
+	break;
+      case MIPS_ABI_N64:
+	tramp_frame_prepend_unwinder (gdbarch, &mips64_fbsd_sigframe);
+	break;
+    }
+
+  set_gdbarch_iterate_over_regset_sections
+    (gdbarch, mips_fbsd_iterate_over_regset_sections);
+
+  /* FreeBSD/mips has SVR4-style shared libraries.  */
+  set_solib_svr4_fetch_link_map_offsets
+    (gdbarch, (gdbarch_ptr_bit (gdbarch) == 32 ?
+	       mips_fbsd_ilp32_fetch_link_map_offsets :
+	       mips_fbsd_lp64_fetch_link_map_offsets));
+}
+
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_mips_fbsd_tdep (void);
+
+void
+_initialize_mips_fbsd_tdep (void)
+{
+  gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_FREEBSD_ELF,
+			  mips_fbsd_init_abi);
+}
diff --git gdb/mips-fbsd-tdep.h gdb/mips-fbsd-tdep.h
new file mode 100644
index 0000000000..8a197e6325
--- /dev/null
+++ gdb/mips-fbsd-tdep.h
@@ -0,0 +1,28 @@
+/* Common target dependent code for GDB on MIPS systems running FreeBSD.
+
+   Copyright (C) 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/>.  */
+
+#ifndef MIPS_FBSD_TDEP_H
+#define MIPS_FBSD_TDEP_H
+
+void mips_fbsd_supply_fpregs (struct regcache *, int, const void *, size_t);
+void mips_fbsd_supply_gregs (struct regcache *, int, const void *, size_t);
+void mips_fbsd_collect_fpregs (const struct regcache *, int, void *, size_t);
+void mips_fbsd_collect_gregs (const struct regcache *, int, void *, size_t);
+
+#endif /* MIPS_FBSD_TDEP_H */




commit acde9e8dc95a053909e137c1fcda94c719eb8cc1
Author: John Baldwin <jhb@FreeBSD.org>
Date:   Wed Jan 4 09:41:58 2017 -0800

    Add native target for FreeBSD/mips.
    
    This supports the o32 and n64 ABIs.
    
    gdb/ChangeLog:
    
            * Makefile.in (ALLDEPFILES): Add mips-fbsd-nat.c.
            * NEWS: Mention new FreeBSD/mips native configuration.
            * config/mips/fbsd.mh: New file.
            * configure.host: Add mips*-*-freebsd*.
            * mips-fbsd-nat.c: New file.

diff --git gdb/Makefile.in gdb/Makefile.in
index 300c2cb702..433dd1203a 100644
--- gdb/Makefile.in
+++ gdb/Makefile.in
@@ -1725,6 +1725,7 @@ ALLDEPFILES = \
 	m88k-tdep.c m88kbsd-nat.c \
 	microblaze-tdep.c microblaze-linux-tdep.c \
 	mingw-hdep.c common/mingw-strerror.c \
+	mips-fbsd-nat.c \
 	mips-fbsd-tdep.c \
 	mips-linux-nat.c mips-linux-tdep.c \
 	mips-sde-tdep.c \
diff --git gdb/config/mips/fbsd.mh gdb/config/mips/fbsd.mh
new file mode 100644
index 0000000000..f433347a20
--- /dev/null
+++ gdb/config/mips/fbsd.mh
@@ -0,0 +1,3 @@
+# Host: FreeBSD/mips
+NATDEPFILES= fork-child.o inf-ptrace.o fbsd-nat.o mips-fbsd-nat.o
+HAVE_NATIVE_GCORE_HOST = 1
diff --git gdb/configure.host gdb/configure.host
index ef265ebe29..c45f61dbba 100644
--- gdb/configure.host
+++ gdb/configure.host
@@ -129,6 +129,7 @@ m88*-*-openbsd*)	gdb_host=obsd ;;
 mips*-*-linux*)		gdb_host=linux ;;
 mips*-*-netbsd* | mips*-*-knetbsd*-gnu)
 			gdb_host=nbsd ;;
+mips*-*-freebsd*)	gdb_host=fbsd ;;
 mips64*-*-openbsd*)	gdb_host=obsd64 ;;
 
 powerpc-*-aix* | rs6000-*-* | powerpc64-*-aix*)
diff --git gdb/mips-fbsd-nat.c gdb/mips-fbsd-nat.c
new file mode 100644
index 0000000000..0472df88f4
--- /dev/null
+++ gdb/mips-fbsd-nat.c
@@ -0,0 +1,136 @@
+/* Native-dependent code for FreeBSD/mips.
+
+   Copyright (C) 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 "inferior.h"
+#include "regcache.h"
+#include "target.h"
+
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+
+#include "fbsd-nat.h"
+#include "mips-tdep.h"
+#include "mips-fbsd-tdep.h"
+#include "inf-ptrace.h"
+
+/* Determine if PT_GETREGS fetches this register.  */
+
+static bool
+getregs_supplies (struct gdbarch *gdbarch, int regnum)
+{
+  return (regnum >= MIPS_ZERO_REGNUM
+	  && regnum <= gdbarch_pc_regnum (gdbarch));
+}
+
+/* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
+   for all registers.  */
+
+static void
+mips_fbsd_fetch_inferior_registers (struct target_ops *ops,
+				    struct regcache *regcache, int regnum)
+{
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  if (regnum == -1 || getregs_supplies (gdbarch, regnum))
+    {
+      struct reg regs;
+
+      if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
+		  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+	perror_with_name (_("Couldn't get registers"));
+
+      mips_fbsd_supply_gregs (regcache, regnum, &regs, sizeof (register_t));
+      if (regnum != -1)
+	return;
+    }
+
+  if (regnum == -1
+      || regnum >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
+    {
+      struct fpreg fpregs;
+
+      if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
+		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+	perror_with_name (_("Couldn't get floating point status"));
+
+      mips_fbsd_supply_fpregs (regcache, regnum, &fpregs,
+			       sizeof (f_register_t));
+    }
+}
+
+/* Store register REGNUM back into the inferior.  If REGNUM is -1, do
+   this for all registers.  */
+
+static void
+mips_fbsd_store_inferior_registers (struct target_ops *ops,
+				    struct regcache *regcache, int regnum)
+{
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  if (regnum == -1 || getregs_supplies (gdbarch, regnum))
+    {
+      struct reg regs;
+
+      if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
+		  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+	perror_with_name (_("Couldn't get registers"));
+
+      mips_fbsd_collect_gregs (regcache, regnum, (char *) &regs,
+			       sizeof (register_t));
+
+      if (ptrace (PT_SETREGS, get_ptrace_pid (inferior_ptid),
+		  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+	perror_with_name (_("Couldn't write registers"));
+
+      if (regnum != -1)
+	return;
+    }
+
+  if (regnum == -1
+      || regnum >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
+    {
+      struct fpreg fpregs;
+
+      if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
+		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+	perror_with_name (_("Couldn't get floating point status"));
+
+      mips_fbsd_collect_fpregs (regcache, regnum, (char *) &fpregs,
+				sizeof (f_register_t));
+
+      if (ptrace (PT_SETFPREGS, get_ptrace_pid (inferior_ptid),
+		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+	perror_with_name (_("Couldn't write floating point status"));
+    }
+}
+
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_mips_fbsd_nat (void);
+
+void
+_initialize_mips_fbsd_nat (void)
+{
+  struct target_ops *t;
+
+  t = inf_ptrace_target ();
+  t->to_fetch_registers = mips_fbsd_fetch_inferior_registers;
+  t->to_store_registers = mips_fbsd_store_inferior_registers;
+  fbsd_nat_add_target (t);
+}




diff --git gdb/Makefile.in gdb/Makefile.in
index 5b6ccea764..f501cf29d1 100644
--- gdb/Makefile.in
+++ gdb/Makefile.in
@@ -212,7 +212,8 @@ INCGNU = -I$(srcdir)/gnulib/import -I$(GNULIB_BUILDDIR)/import
 
 # Generated headers in the gnulib directory.  These must be listed
 # so that they are generated before other files are compiled.

 
 #
 # CLI sub directory definitons
@@ -653,7 +654,8 @@ ALL_64_TARGET_OBS = \
 	ia64-linux-tdep.o ia64-vms-tdep.o ia64-tdep.o \
 	mips64obsd-tdep.o \
 	sparc64fbsd-tdep.o sparc64-linux-tdep.o sparc64nbsd-tdep.o \

 
 # All other target-dependent objects files (used with --enable-targets=all).
 ALL_TARGET_OBS = \
@@ -676,6 +678,8 @@ ALL_TARGET_OBS = \
 	i386-sol2-tdep.o i386-tdep.o i387-tdep.o \
 	i386-dicos-tdep.o i386-darwin-tdep.o \
 	iq2000-tdep.o \
+	fbsd-kld.o fbsd-kthr.o fbsd-kvm.o i386fbsd-kern.o ppcfbsd-kern.o \
+	mipsfbsd-kern.o \
 	linux-tdep.o \
 	lm32-tdep.o \
 	m32c-tdep.o \
@@ -1133,7 +1137,7 @@ generated_files = config.h observer.h observer.inc ada-lex.c jit-reader.h \
 	$(COMPILE) $<
 	$(POSTCOMPILE)
 

 	@$(MAKE) $(FLAGS_TO_PASS) DO=all "DODIRS=`echo $(SUBDIRS) | sed 's/testsuite//'`" subdir_do
 
 installcheck:
@@ -1412,6 +1416,12 @@ gdb$(EXEEXT): gdb.o $(LIBGDB_OBS) $(ADD_DEPS) $(CDEPS) $(TDEPLIBS)
 		-o gdb$(EXEEXT) gdb.o $(LIBGDB_OBS) \
 		$(TDEPLIBS) $(TUI_LIBRARY) $(CLIBS) $(LOADLIBES)
 

 # Convenience rule to handle recursion.
 $(LIBGNU) $(GNULIB_H): all-lib
 all-lib: $(GNULIB_BUILDDIR)/Makefile
@@ -1456,7 +1466,7 @@ clean mostlyclean: $(CONFIG_CLEAN)
 	@$(MAKE) $(FLAGS_TO_PASS) DO=clean "DODIRS=$(CLEANDIRS)" subdir_do
 	rm -f *.o *.a $(ADD_FILES) *~ init.c-tmp init.l-tmp version.c-tmp
 	rm -f init.c version.c observer.h observer.inc

 	rm -f gdb[0-9]$(EXEEXT)
 	rm -f test-cp-name-parser$(EXEEXT)
 	rm -f xml-builtin.c stamp-xml
@@ -1688,6 +1698,9 @@ ALLDEPFILES = \
 	core-regset.c \
 	dcache.c dicos-tdep.c darwin-nat.c \
 	exec.c \
+	fbsd-kld.c fbsd-kthr.c fbsd-kvm.c \
+	amd64fbsd-kern.c i386fbsd-kern.c mipsfbsd-kern.c ppcfbsd-kern.c \
+	sparc64fbsd-kern.c \
 	fbsd-nat.c \
 	fbsd-tdep.c \
 	fork-child.c \
@@ -2761,7 +2774,7 @@ py-varobj.o: $(srcdir)/python/py-varobj.c
 
 # A list of all the objects we might care about in this build, for
 # dependency tracking.

 
 # Ensure that generated files are created early.  Use order-only
diff --git gdb/config.in gdb/config.in
index c82a5b4bac..34140b2d59 100644
--- gdb/config.in
+++ gdb/config.in
@@ -219,6 +219,9 @@
 /* Define to 1 if your system has the kinfo_getvmmap function. */
 #undef HAVE_KINFO_GETVMMAP
 

 #undef HAVE_LANGINFO_CODESET
 
diff --git gdb/configure gdb/configure
index b5c045cf10..68299ff16c 100755
--- gdb/configure
+++ gdb/configure
@@ -7112,6 +7112,66 @@ $as_echo "#define HAVE_KINFO_GETVMMAP 1" >>confdefs.h
 fi
 
 

+
+
 
       if test "X$prefix" = "XNONE"; then
     acl_final_prefix="$ac_default_prefix"
diff --git gdb/configure.ac gdb/configure.ac
index f774db7ea6..efccdd3fb1 100644
--- gdb/configure.ac
+++ gdb/configure.ac
@@ -540,6 +540,11 @@ AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
   [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
             [Define to 1 if your system has the kinfo_getvmmap function. ])])
 

 AM_ICONV
 
 # GDB may fork/exec the iconv program to get the list of supported character
diff --git gdb/configure.tgt gdb/configure.tgt
index 9ee9f7a799..fb14b19405 100644
--- gdb/configure.tgt
+++ gdb/configure.tgt
@@ -190,7 +190,13 @@ i[34567]86-*-dicos*)
 i[34567]86-*-freebsd* | i[34567]86-*-kfreebsd*-gnu)
 	# Target: FreeBSD/i386
 	gdb_target_obs="i386-tdep.o i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
-			bsd-uthread.o fbsd-tdep.o solib-svr4.o"
+			bsd-uthread.o fbsd-tdep.o solib-svr4.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o i386fbsd-kern.o"
+	if test "x$enable_64_bit_bfd" = "xyes"; then
+	    # Target: FreeBSD amd64
+	    gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o amd64fbsd-kern.o \
+			    ${gdb_target_obs}"
+	fi
 	;;
 i[34567]86-*-netbsd* | i[34567]86-*-knetbsd*-gnu)
 	# Target: NetBSD/i386
@@ -360,7 +366,8 @@ mips*-*-netbsd* | mips*-*-knetbsd*-gnu)
 	;;
 mips*-*-freebsd*)
 	# Target: MIPS running FreeBSD
-	gdb_target_obs="mips-tdep.o mips-fbsd-tdep.o solib-svr4.o fbsd-tdep.o"
+	gdb_target_obs="mips-tdep.o mips-fbsd-tdep.o solib-svr4.o fbsd-tdep.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o mipsfbsd-kern.o"
 	gdb_sim=../sim/mips/libsim.a
 	;;
 mips64*-*-openbsd*)
@@ -419,7 +426,8 @@ powerpc*-*-freebsd*)
 	# Target: FreeBSD/powerpc
 	gdb_target_obs="rs6000-tdep.o ppc-sysv-tdep.o ppc64-tdep.o \
 		        ppcfbsd-tdep.o fbsd-tdep.o solib-svr4.o \
-			ravenscar-thread.o ppc-ravenscar-thread.o"
+			ravenscar-thread.o ppc-ravenscar-thread.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o ppcfbsd-kern.o"
 	;;
 
 powerpc-*-netbsd* | powerpc-*-knetbsd*-gnu)
@@ -543,7 +551,8 @@ sparc*-*-freebsd* | sparc*-*-kfreebsd*-gnu)
 	# Target: FreeBSD/sparc64
 	gdb_target_obs="sparc-tdep.o sparc64-tdep.o sparc64fbsd-tdep.o \
 			fbsd-tdep.o solib-svr4.o \
-			ravenscar-thread.o sparc-ravenscar-thread.o"
+			ravenscar-thread.o sparc-ravenscar-thread.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o sparc64fbsd-kern.o"
 	;;
 sparc-*-netbsd* | sparc-*-knetbsd*-gnu)
 	# Target: NetBSD/sparc
@@ -674,7 +683,9 @@ x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu)
 	# Target: FreeBSD/amd64
 	gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o i386-tdep.o \
 			i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
-			bsd-uthread.o fbsd-tdep.o solib-svr4.o"
+			bsd-uthread.o fbsd-tdep.o solib-svr4.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o amd64fbsd-kern.o \
+			i386fbsd-kern.o"
 	;;
 x86_64-*-mingw* | x86_64-*-cygwin*)
         # Target: MingW/amd64
diff --git gdb/defs.h gdb/defs.h
index 9b44f44349..f176be1108 100644
--- gdb/defs.h
+++ gdb/defs.h
@@ -598,6 +598,7 @@ enum gdb_osabi
   GDB_OSABI_LINUX,
   GDB_OSABI_FREEBSD_AOUT,
   GDB_OSABI_FREEBSD_ELF,

   GDB_OSABI_NETBSD_ELF,
   GDB_OSABI_OPENBSD_ELF,
diff --git gdb/osabi.c gdb/osabi.c
index f7d4e74239..130ffef37e 100644
--- gdb/osabi.c
+++ gdb/osabi.c
@@ -66,6 +66,7 @@ static const struct osabi_names gdb_osabi_names[] =

   { "NetBSD/ELF", NULL },
   { "OpenBSD/ELF", NULL },
diff --git gdb/regcache.c gdb/regcache.c
index a5c90a6314..05044e5293 100644
--- gdb/regcache.c
+++ gdb/regcache.c
@@ -1083,6 +1083,20 @@ regcache_raw_supply (struct regcache *regcache, int regnum, const void *buf)

 
 void
diff --git gdb/regcache.h gdb/regcache.h
index 1bb0ce0ec8..65783b6355 100644
--- gdb/regcache.h
+++ gdb/regcache.h
@@ -135,6 +135,8 @@ extern void regcache_write_pc (struct regcache *regcache, CORE_ADDR pc);
 
 extern void regcache_raw_supply (struct regcache *regcache,
 				 int regnum, const void *buf);

 extern void regcache_raw_collect (const struct regcache *regcache,
 				  int regnum, void *buf);
 
diff --git gdb/configure.tgt gdb/configure.tgt
index 4e4d6a9..57e4b3a 100644
--- gdb/configure.tgt
+++ gdb/configure.tgt
@@ -185,7 +185,13 @@ i[34567]86-*-dicos*)
 i[34567]86-*-freebsd* | i[34567]86-*-kfreebsd*-gnu)
 	# Target: FreeBSD/i386
 	gdb_target_obs="i386-tdep.o i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
-			bsd-uthread.o fbsd-tdep.o solib-svr4.o"
+			bsd-uthread.o fbsd-tdep.o solib-svr4.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o i386fbsd-kern.o"
+	if test "x$enable_64_bit_bfd" = "xyes"; then
+	    # Target: FreeBSD amd64
+	    gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o amd64fbsd-kern.o \
+			    ${gdb_target_obs}"
+	fi
 	;;
 i[34567]86-*-netbsd* | i[34567]86-*-knetbsd*-gnu)
 	# Target: NetBSD/i386
@@ -405,7 +411,8 @@ powerpc*-*-freebsd*)
 	# Target: FreeBSD/powerpc
 	gdb_target_obs="rs6000-tdep.o ppc-sysv-tdep.o ppc64-tdep.o \
 		        ppcfbsd-tdep.o fbsd-tdep.o solib-svr4.o \
-			ravenscar-thread.o ppc-ravenscar-thread.o"
+			ravenscar-thread.o ppc-ravenscar-thread.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o ppcfbsd-kern.o"
 	;;
 
 powerpc-*-netbsd* | powerpc-*-knetbsd*-gnu)
@@ -534,7 +541,8 @@ sparc*-*-freebsd* | sparc*-*-kfreebsd*-gnu)
 	# Target: FreeBSD/sparc64
 	gdb_target_obs="sparc-tdep.o sparc64-tdep.o sparc64fbsd-tdep.o \
 			fbsd-tdep.o solib-svr4.o \
-			ravenscar-thread.o sparc-ravenscar-thread.o"
+			ravenscar-thread.o sparc-ravenscar-thread.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o sparc64fbsd-kern.o"
 	;;
 sparc-*-netbsd* | sparc-*-knetbsd*-gnu)
 	# Target: NetBSD/sparc
@@ -662,7 +670,9 @@ x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu)
 	# Target: FreeBSD/amd64
 	gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o i386-tdep.o \
 			i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
-			bsd-uthread.o fbsd-tdep.o solib-svr4.o"
+			bsd-uthread.o fbsd-tdep.o solib-svr4.o \
+			fbsd-kld.o fbsd-kthr.o fbsd-kvm.o amd64fbsd-kern.o \
+			i386fbsd-kern.o"
 	;;
 x86_64-*-mingw* | x86_64-*-cygwin*)
         # Target: MingW/amd64




/*
 * Copyright (c) 2007 Juniper Networks, Inc.
 * Copyright (c) 2004 Marcel Moolenaar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * from: src/gnu/usr.bin/gdb/kgdb/trgt_alpha.c,v 1.2.2.1 2005/09/15 05:32:10 marcel
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/types.h>
#ifdef __mips__
#include <machine/asm.h>
#include <machine/pcb.h>
#include <machine/frame.h>
#endif
#include <string.h>

#include <defs.h>
#include <frame-unwind.h>
//#include <target.h>
//#include <gdbthread.h>
//#include <inferior.h>
#include "osabi.h"
#include <regcache.h>
#include "solib.h"
#include "trad-frame.h"
#include <mips-tdep.h>

#include "kgdb.h"

/* Size of struct trapframe in registers. */
#define	TRAPFRAME_WORDS	74

/* From sys/mips/include/pcb.h.  Offsets in the pcb_context[] array. */
#define	FBSD_PCB_REG_S0	0
#define	FBSD_PCB_REG_S1	1
#define	FBSD_PCB_REG_S2	2
#define	FBSD_PCB_REG_S3	3
#define	FBSD_PCB_REG_S4	4
#define	FBSD_PCB_REG_S5	5
#define	FBSD_PCB_REG_S6	6
#define	FBSD_PCB_REG_S7	7
#define	FBSD_PCB_REG_SP	8
#define	FBSD_PCB_REG_S8	9
#define	FBSD_PCB_REG_RA	10
#define	FBSD_PCB_REG_SR	11
#define	FBSD_PCB_REG_GP	12
#define	FBSD_PCB_REG_PC	13

#ifdef __mips__
_Static_assert(TRAPFRAME_WORDS * sizeof(register_t) ==
	       sizeof(struct trapframe), "TRAPFRAME_WORDS mismatch");
_Static_assert(FBSD_PCB_REG_S0 == PCB_REG_S0, "PCB_REG_S0 mismatch");
_Static_assert(FBSD_PCB_REG_S1 == PCB_REG_S1, "PCB_REG_S1 mismatch");
_Static_assert(FBSD_PCB_REG_S2 == PCB_REG_S2, "PCB_REG_S2 mismatch");
_Static_assert(FBSD_PCB_REG_S3 == PCB_REG_S3, "PCB_REG_S3 mismatch");
_Static_assert(FBSD_PCB_REG_S4 == PCB_REG_S4, "PCB_REG_S4 mismatch");
_Static_assert(FBSD_PCB_REG_S5 == PCB_REG_S5, "PCB_REG_S5 mismatch");
_Static_assert(FBSD_PCB_REG_S6 == PCB_REG_S6, "PCB_REG_S6 mismatch");
_Static_assert(FBSD_PCB_REG_S7 == PCB_REG_S7, "PCB_REG_S7 mismatch");
_Static_assert(FBSD_PCB_REG_SP == PCB_REG_SP, "PCB_REG_SP mismatch");
_Static_assert(FBSD_PCB_REG_S8 == PCB_REG_S8, "PCB_REG_S8 mismatch");
_Static_assert(FBSD_PCB_REG_RA == PCB_REG_RA, "PCB_REG_RA mismatch");
_Static_assert(FBSD_PCB_REG_SR == PCB_REG_SR, "PCB_REG_SR mismatch");
_Static_assert(FBSD_PCB_REG_GP == PCB_REG_GP, "PCB_REG_GP mismatch");
_Static_assert(FBSD_PCB_REG_PC == PCB_REG_PC, "PCB_REG_PC mismatch");
#endif

static void
mipsfbsd_supply_pcb(struct regcache *regcache, CORE_ADDR pcb_addr)
{
  struct gdbarch *gdbarch = get_regcache_arch (regcache);
  size_t regsize = mips_isa_regsize (gdbarch);
  gdb_byte buf[regsize * (FBSD_PCB_REG_PC + 1)];

  /* Read the entire pcb_context[] array in one go.  The pcb_context[]
     array is after the pcb_regs member which is a trapframe.  */
  if (target_read_memory (pcb_addr + TRAPFRAME_WORDS * regsize, buf,
			  sizeof(buf)) != 0)
    return;

  regcache_raw_supply_unsigned (regcache, MIPS_ZERO_REGNUM, 0);
  regcache_raw_supply (regcache, MIPS_S2_REGNUM - 2,
		       buf + (regsize * FBSD_PCB_REG_S0));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM - 1,
		       buf + (regsize * FBSD_PCB_REG_S1));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM,
		       buf + (regsize * FBSD_PCB_REG_S2));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM + 1,
		       buf + (regsize * FBSD_PCB_REG_S3));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM + 2,
		       buf + (regsize * FBSD_PCB_REG_S4));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM + 3,
		       buf + (regsize * FBSD_PCB_REG_S5));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM + 4,
		       buf + (regsize * FBSD_PCB_REG_S6));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM + 5,
		       buf + (regsize * FBSD_PCB_REG_S7));
  regcache_raw_supply (regcache, MIPS_SP_REGNUM,
		       buf + (regsize * FBSD_PCB_REG_SP));
  regcache_raw_supply (regcache, MIPS_S2_REGNUM + 6,
		       buf + (regsize * FBSD_PCB_REG_S8));
  regcache_raw_supply (regcache, MIPS_RA_REGNUM,
		       buf + (regsize * FBSD_PCB_REG_RA));
  regcache_raw_supply (regcache, MIPS_PS_REGNUM,
		       buf + (regsize * FBSD_PCB_REG_SR));
  regcache_raw_supply (regcache, MIPS_GP_REGNUM,
		       buf + (regsize * FBSD_PCB_REG_GP));
  regcache_raw_supply (regcache, MIPS_EMBED_PC_REGNUM,
		       buf + (regsize * FBSD_PCB_REG_PC));
}

static struct trad_frame_cache *
mipsfbsd_trapframe_cache (struct frame_info *this_frame, void **this_cache)
{
  struct gdbarch *gdbarch = get_frame_arch (this_frame);
  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
  size_t regsize = mips_isa_regsize (gdbarch);
  struct trad_frame_cache *cache;
  CORE_ADDR addr, func, pc, sp;
  int regnum;

  if (*this_cache != NULL)
    return ((struct trad_frame_cache *)*this_cache);

  cache = trad_frame_cache_zalloc (this_frame);
  *this_cache = cache;

  func = get_frame_func (this_frame);
  sp = get_frame_register_signed (this_frame,
				  MIPS_SP_REGNUM + gdbarch_num_regs (gdbarch));

  /* Skip over CALLFRAME_SIZ.  */
  addr = sp;
  if (regsize == 8)
    addr += regsize * 4;
  else
    addr += regsize * (4 + 2);

  /* GPRs.  Skip zero.  */
  addr += regsize;
  for (regnum = MIPS_AT_REGNUM; regnum <= MIPS_RA_REGNUM; regnum++)
    {
      trad_frame_set_reg_addr (cache,
			       regnum + gdbarch_num_regs (gdbarch),
			       addr);
      addr += regsize;
    }

  regnum = MIPS_PS_REGNUM;
  trad_frame_set_reg_addr (cache,
			   regnum + gdbarch_num_regs (gdbarch),
			   addr);
  addr += regsize;

  /* HI and LO.  */
  regnum = mips_regnum (gdbarch)->lo;
  trad_frame_set_reg_addr (cache,
			   regnum + gdbarch_num_regs (gdbarch),
			   addr);
  addr += regsize;
  regnum = mips_regnum (gdbarch)->hi;
  trad_frame_set_reg_addr (cache,
			   regnum + gdbarch_num_regs (gdbarch),
			   addr);
  addr += regsize;

  /* BADVADDR.  */
  regnum = mips_regnum (gdbarch)->badvaddr;
  trad_frame_set_reg_addr (cache,
			   regnum + gdbarch_num_regs (gdbarch),
			   addr);
  addr += regsize;

  /* CAUSE.  */
  regnum = mips_regnum (gdbarch)->cause;
  trad_frame_set_reg_addr (cache,
			   regnum + gdbarch_num_regs (gdbarch),
			   addr);
  addr += regsize;

  /* PC.  */
  regnum = mips_regnum (gdbarch)->pc;
  trad_frame_set_reg_addr (cache,
			   regnum + gdbarch_num_regs (gdbarch),
			   addr);
  
  trad_frame_set_id (cache, frame_id_build (sp + TRAPFRAME_WORDS * regsize,
					    func));
  return cache;
}

static void
mipsfbsd_trapframe_this_id (struct frame_info *this_frame,
			    void **this_cache, struct frame_id *this_id)
{
  struct trad_frame_cache *cache =
    mipsfbsd_trapframe_cache (this_frame, this_cache);
  
  trad_frame_get_id (cache, this_id);
}

static struct value *
mipsfbsd_trapframe_prev_register (struct frame_info *this_frame,
				  void **this_cache, int regnum)
{
  struct trad_frame_cache *cache =
    mipsfbsd_trapframe_cache (this_frame, this_cache);

  return trad_frame_get_register (cache, this_frame, regnum);
}

static int
mipsfbsd_trapframe_sniffer (const struct frame_unwind *self,
			    struct frame_info *this_frame,
			    void **this_prologue_cache)
{
  const char *name;

  find_pc_partial_function (get_frame_func (this_frame), &name, NULL, NULL);
  return (name && ((strcmp(name, "MipsKernIntr") == 0) ||
		   (strcmp(name, "MipsKernGenException") == 0) ||
		   (strcmp(name, "MipsTLBInvalidException") == 0)));
}

static const struct frame_unwind mipsfbsd_trapframe_unwind = {
  SIGTRAMP_FRAME,
  default_frame_unwind_stop_reason,
  mipsfbsd_trapframe_this_id,
  mipsfbsd_trapframe_prev_register,
  NULL,
  mipsfbsd_trapframe_sniffer
};

static void
mipsfbsd_kernel_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
  enum mips_abi abi = mips_abi (gdbarch);

  set_gdbarch_software_single_step (gdbarch, mips_software_single_step);

  switch (abi)
    {
      case MIPS_ABI_O32:
	break;
      case MIPS_ABI_N32:
	set_gdbarch_long_double_bit (gdbarch, 128);
	/* These floatformats should probably be renamed.  MIPS uses
	   the same 128-bit IEEE floating point format that IA-64 uses,
	   except that the quiet/signalling NaN bit is reversed (GDB
	   does not distinguish between quiet and signalling NaNs).  */
	set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
	break;
      case MIPS_ABI_N64:
	set_gdbarch_long_double_bit (gdbarch, 128);
	/* These floatformats should probably be renamed.  MIPS uses
	   the same 128-bit IEEE floating point format that IA-64 uses,
	   except that the quiet/signalling NaN bit is reversed (GDB
	   does not distinguish between quiet and signalling NaNs).  */
	set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
	break;
    }

  frame_unwind_prepend_unwinder (gdbarch, &mipsfbsd_trapframe_unwind);

  set_solib_ops (gdbarch, &kld_so_ops);

  fbsd_vmcore_set_supply_pcb (gdbarch, mipsfbsd_supply_pcb);
  fbsd_vmcore_set_cpu_pcb_addr (gdbarch, kgdb_trgt_stop_pcb);
}

void _initialize_mips_kgdb_tdep (void);

void
_initialize_mips_kgdb_tdep (void)
{
  gdbarch_register_osabi_sniffer(bfd_arch_mips,
				 bfd_target_elf_flavour,
				 fbsd_kernel_osabi_sniffer);
  gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_FREEBSD_ELF_KERNEL,
			  mipsfbsd_kernel_init_abi);
}

Return to bug 215783

Line 0 Link Here

(-)files/commit-b268007c68 (+191 lines)
		1	commit acde9e8dc95a053909e137c1fcda94c719eb8cc1
		2	Author: John Baldwin <jhb@FreeBSD.org>
		3	Date: Wed Jan 4 09:41:58 2017 -0800
		4
		5	Add native target for FreeBSD/mips.
		6
		7	This supports the o32 and n64 ABIs.
		8
		9	gdb/ChangeLog:
		10
		11	* Makefile.in (ALLDEPFILES): Add mips-fbsd-nat.c.
		12	* NEWS: Mention new FreeBSD/mips native configuration.
		13	* config/mips/fbsd.mh: New file.
		14	* configure.host: Add mips--freebsd*.
		15	* mips-fbsd-nat.c: New file.
		16
		17	diff --git gdb/Makefile.in gdb/Makefile.in
		18	index 300c2cb702..433dd1203a 100644
		19	--- gdb/Makefile.in
		20	+++ gdb/Makefile.in
		21	@@ -1725,6 +1725,7 @@ ALLDEPFILES = \
		22	m88k-tdep.c m88kbsd-nat.c \
		23	microblaze-tdep.c microblaze-linux-tdep.c \
		24	mingw-hdep.c common/mingw-strerror.c \
		25	+ mips-fbsd-nat.c \
		26	mips-fbsd-tdep.c \
		27	mips-linux-nat.c mips-linux-tdep.c \
		28	mips-sde-tdep.c \
		29	diff --git gdb/config/mips/fbsd.mh gdb/config/mips/fbsd.mh
		30	new file mode 100644
		31	index 0000000000..f433347a20
		32	--- /dev/null
		33	+++ gdb/config/mips/fbsd.mh
		34	@@ -0,0 +1,3 @@
		35	+# Host: FreeBSD/mips
		36	+NATDEPFILES= fork-child.o inf-ptrace.o fbsd-nat.o mips-fbsd-nat.o
		37	+HAVE_NATIVE_GCORE_HOST = 1
		38	diff --git gdb/configure.host gdb/configure.host
		39	index ef265ebe29..c45f61dbba 100644
		40	--- gdb/configure.host
		41	+++ gdb/configure.host
		42	@@ -129,6 +129,7 @@ m88--openbsd*) gdb_host=obsd ;;
		43	mips--linux*) gdb_host=linux ;;
		44	mips--netbsd* \| mips--knetbsd*-gnu)
		45	gdb_host=nbsd ;;
		46	+mips--freebsd*) gdb_host=fbsd ;;
		47	mips64--openbsd*) gdb_host=obsd64 ;;
		48
		49	powerpc--aix \| rs6000-- \| powerpc64--aix)
		50	diff --git gdb/mips-fbsd-nat.c gdb/mips-fbsd-nat.c
		51	new file mode 100644
		52	index 0000000000..0472df88f4
		53	--- /dev/null
		54	+++ gdb/mips-fbsd-nat.c
		55	@@ -0,0 +1,136 @@
		56	+/* Native-dependent code for FreeBSD/mips.
		57	+
		58	+ Copyright (C) 2017 Free Software Foundation, Inc.
		59	+
		60	+ This file is part of GDB.
		61	+
		62	+ This program is free software; you can redistribute it and/or modify
		63	+ it under the terms of the GNU General Public License as published by
		64	+ the Free Software Foundation; either version 3 of the License, or
65	+ (at your option) any later version.
66	+
67	+ This program is distributed in the hope that it will be useful,
68	+ but WITHOUT ANY WARRANTY; without even the implied warranty of
69	+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
70	+ GNU General Public License for more details.
71	+
72	+ You should have received a copy of the GNU General Public License
73	+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
74	+
75	+#include "defs.h"
76	+#include "inferior.h"
77	+#include "regcache.h"
78	+#include "target.h"
79	+
80	+#include <sys/types.h>
81	+#include <sys/ptrace.h>
82	+#include <machine/reg.h>
83	+
84	+#include "fbsd-nat.h"
85	+#include "mips-tdep.h"
86	+#include "mips-fbsd-tdep.h"
87	+#include "inf-ptrace.h"
88	+
89	+/* Determine if PT_GETREGS fetches this register. */
90	+
91	+static bool
92	+getregs_supplies (struct gdbarch *gdbarch, int regnum)
93	+{
94	+ return (regnum >= MIPS_ZERO_REGNUM
95	+ && regnum <= gdbarch_pc_regnum (gdbarch));
96	+}
97	+
98	+/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
99	+ for all registers. */
100	+
101	+static void
102	+mips_fbsd_fetch_inferior_registers (struct target_ops *ops,
103	+ struct regcache *regcache, int regnum)
104	+{
105	+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
106	+ if (regnum == -1 \|\| getregs_supplies (gdbarch, regnum))
107	+ {
108	+ struct reg regs;
109	+
110	+ if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
111	+ (PTRACE_TYPE_ARG3) &regs, 0) == -1)
112	+ perror_with_name (_("Couldn't get registers"));
113	+
114	+ mips_fbsd_supply_gregs (regcache, regnum, &regs, sizeof (register_t));
115	+ if (regnum != -1)
116	+ return;
117	+ }
118	+
119	+ if (regnum == -1
120	+ \|\| regnum >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
121	+ {
122	+ struct fpreg fpregs;
123	+
124	+ if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
125	+ (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
126	+ perror_with_name (_("Couldn't get floating point status"));
127	+
128	+ mips_fbsd_supply_fpregs (regcache, regnum, &fpregs,
129	+ sizeof (f_register_t));
130	+ }
131	+}
132	+
133	+/* Store register REGNUM back into the inferior. If REGNUM is -1, do
134	+ this for all registers. */
135	+
136	+static void
137	+mips_fbsd_store_inferior_registers (struct target_ops *ops,
138	+ struct regcache *regcache, int regnum)
139	+{
140	+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
141	+ if (regnum == -1 \|\| getregs_supplies (gdbarch, regnum))
142	+ {
143	+ struct reg regs;
144	+
145	+ if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
146	+ (PTRACE_TYPE_ARG3) &regs, 0) == -1)
147	+ perror_with_name (_("Couldn't get registers"));
148	+
149	+ mips_fbsd_collect_gregs (regcache, regnum, (char *) &regs,
150	+ sizeof (register_t));
151	+
152	+ if (ptrace (PT_SETREGS, get_ptrace_pid (inferior_ptid),
153	+ (PTRACE_TYPE_ARG3) &regs, 0) == -1)
154	+ perror_with_name (_("Couldn't write registers"));
155	+
156	+ if (regnum != -1)
157	+ return;
158	+ }
159	+
160	+ if (regnum == -1
161	+ \|\| regnum >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
162	+ {
163	+ struct fpreg fpregs;
164	+
165	+ if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
166	+ (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
167	+ perror_with_name (_("Couldn't get floating point status"));
168	+
169	+ mips_fbsd_collect_fpregs (regcache, regnum, (char *) &fpregs,
170	+ sizeof (f_register_t));
171	+
172	+ if (ptrace (PT_SETFPREGS, get_ptrace_pid (inferior_ptid),
173	+ (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
174	+ perror_with_name (_("Couldn't write floating point status"));
175	+ }
176	+}
177	+
178	+
179	+/* Provide a prototype to silence -Wmissing-prototypes. */
180	+void _initialize_mips_fbsd_nat (void);
181	+
182	+void
183	+_initialize_mips_fbsd_nat (void)
184	+{
185	+ struct target_ops *t;
186	+
187	+ t = inf_ptrace_target ();
188	+ t->to_fetch_registers = mips_fbsd_fetch_inferior_registers;
189	+ t->to_store_registers = mips_fbsd_store_inferior_registers;
190	+ fbsd_nat_add_target (t);
191	+}

Lines 1-8 Link Here

(-)files/extrapatch-kgdb (-74 / +85 lines)
1	diff --git gdb/Makefile.in gdb/Makefile.in	1	diff --git gdb/Makefile.in gdb/Makefile.in
2	index dfaa8a3..182d875 100644	2	index 5b6ccea764..f501cf29d1 100644
3	--- gdb/Makefile.in	3	--- gdb/Makefile.in
4	+++ gdb/Makefile.in	4	+++ gdb/Makefile.in
5	@@ -207,7 +207,8 @@	5	@@ -212,7 +212,8 @@ INCGNU = -I$(srcdir)/gnulib/import -I$(GNULIB_BUILDDIR)/import
6		6
7	# Generated headers in the gnulib directory. These must be listed	7	# Generated headers in the gnulib directory. These must be listed
8	# so that they are generated before other files are compiled.	8	# so that they are generated before other files are compiled.
Lines 12-18 Link Here
12		12
13	#	13	#
14	# CLI sub directory definitons	14	# CLI sub directory definitons
15	@@ -650,7 +650,8 @@ ALL_64_TARGET_OBS = \	15	@@ -653,7 +654,8 @@ ALL_64_TARGET_OBS = \
16	ia64-linux-tdep.o ia64-vms-tdep.o ia64-tdep.o \	16	ia64-linux-tdep.o ia64-vms-tdep.o ia64-tdep.o \
17	mips64obsd-tdep.o \	17	mips64obsd-tdep.o \
18	sparc64fbsd-tdep.o sparc64-linux-tdep.o sparc64nbsd-tdep.o \	18	sparc64fbsd-tdep.o sparc64-linux-tdep.o sparc64nbsd-tdep.o \
Lines 22-36 Link Here
22		22
23	# All other target-dependent objects files (used with --enable-targets=all).	23	# All other target-dependent objects files (used with --enable-targets=all).
24	ALL_TARGET_OBS = \	24	ALL_TARGET_OBS = \
25	@@ -672,6 +673,7 @@ ALL_TARGET_OBS = \	25	@@ -676,6 +678,8 @@ ALL_TARGET_OBS = \
26	i386-sol2-tdep.o i386-tdep.o i387-tdep.o \	26	i386-sol2-tdep.o i386-tdep.o i387-tdep.o \
27	i386-dicos-tdep.o i386-darwin-tdep.o \	27	i386-dicos-tdep.o i386-darwin-tdep.o \
28	iq2000-tdep.o \	28	iq2000-tdep.o \
29	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o i386fbsd-kern.o ppcfbsd-kern.o \	29	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o i386fbsd-kern.o ppcfbsd-kern.o \
		30	+ mipsfbsd-kern.o \
30	linux-tdep.o \	31	linux-tdep.o \
31	lm32-tdep.o \	32	lm32-tdep.o \
32	m32c-tdep.o \	33	m32c-tdep.o \
33	@@ -1123,7 +1125,7 @@ generated_files = config.h observer.h observer.inc ada-lex.c jit-reader.h \	34	@@ -1133,7 +1137,7 @@ generated_files = config.h observer.h observer.inc ada-lex.c jit-reader.h \
34	$(COMPILE) $<	35	$(COMPILE) $<
35	$(POSTCOMPILE)	36	$(POSTCOMPILE)
36		37
Lines 39-45 Link Here
39	@$(MAKE) $(FLAGS_TO_PASS) DO=all "DODIRS=`echo $(SUBDIRS) \| sed 's/testsuite//'`" subdir_do	40	@$(MAKE) $(FLAGS_TO_PASS) DO=all "DODIRS=`echo $(SUBDIRS) \| sed 's/testsuite//'`" subdir_do
40		41
41	installcheck:	42	installcheck:
42	@@ -1393,6 +1395,12 @@ gdb$(EXEEXT): gdb.o $(LIBGDB_OBS) $(ADD_DEPS) $(CDEPS) $(TDEPLIBS)	43	@@ -1412,6 +1416,12 @@ gdb$(EXEEXT): gdb.o $(LIBGDB_OBS) $(ADD_DEPS) $(CDEPS) $(TDEPLIBS)
43	-o gdb$(EXEEXT) gdb.o $(LIBGDB_OBS) \	44	-o gdb$(EXEEXT) gdb.o $(LIBGDB_OBS) \
44	$(TDEPLIBS) $(TUI_LIBRARY) $(CLIBS) $(LOADLIBES)	45	$(TDEPLIBS) $(TUI_LIBRARY) $(CLIBS) $(LOADLIBES)
45		46
Lines 52-58 Link Here
52	# Convenience rule to handle recursion.	53	# Convenience rule to handle recursion.
53	$(LIBGNU) $(GNULIB_H): all-lib	54	$(LIBGNU) $(GNULIB_H): all-lib
54	all-lib: $(GNULIB_BUILDDIR)/Makefile	55	all-lib: $(GNULIB_BUILDDIR)/Makefile
55	@@ -1437,7 +1445,7 @@ clean mostlyclean: $(CONFIG_CLEAN)	56	@@ -1456,7 +1466,7 @@ clean mostlyclean: $(CONFIG_CLEAN)
56	@$(MAKE) $(FLAGS_TO_PASS) DO=clean "DODIRS=$(CLEANDIRS)" subdir_do	57	@$(MAKE) $(FLAGS_TO_PASS) DO=clean "DODIRS=$(CLEANDIRS)" subdir_do
57	rm -f .o .a $(ADD_FILES) *~ init.c-tmp init.l-tmp version.c-tmp	58	rm -f .o .a $(ADD_FILES) *~ init.c-tmp init.l-tmp version.c-tmp
58	rm -f init.c version.c observer.h observer.inc	59	rm -f init.c version.c observer.h observer.inc
Lines 61-77 Link Here
61	rm -f gdb[0-9]$(EXEEXT)	62	rm -f gdb[0-9]$(EXEEXT)
62	rm -f test-cp-name-parser$(EXEEXT)	63	rm -f test-cp-name-parser$(EXEEXT)
63	rm -f xml-builtin.c stamp-xml	64	rm -f xml-builtin.c stamp-xml
64	@@ -1667,6 +1675,9 @@ ALLDEPFILES = \	65	@@ -1688,6 +1698,9 @@ ALLDEPFILES = \
65	core-regset.c \	66	core-regset.c \
66	dcache.c dicos-tdep.c darwin-nat.c \	67	dcache.c dicos-tdep.c darwin-nat.c \
67	exec.c \	68	exec.c \
68	+ fbsd-kld.c fbsd-kthr.c fbsd-kvm.c \	69	+ fbsd-kld.c fbsd-kthr.c fbsd-kvm.c \
69	+ amd64fbsd-kern.c i386fbsd-kern.c ppcfbsd-kern.c \	70	+ amd64fbsd-kern.c i386fbsd-kern.c mipsfbsd-kern.c ppcfbsd-kern.c \
70	+ sparc64fbsd-kern.c \	71	+ sparc64fbsd-kern.c \
71	fbsd-nat.c \	72	fbsd-nat.c \
72	fbsd-tdep.c \	73	fbsd-tdep.c \
73	fork-child.c \	74	fork-child.c \
74	@@ -2740,7 +2752,7 @@	75	@@ -2761,7 +2774,7 @@ py-varobj.o: $(srcdir)/python/py-varobj.c
75		76
76	# A list of all the objects we might care about in this build, for	77	# A list of all the objects we might care about in this build, for
77	# dependency tracking.	78	# dependency tracking.
Lines 81-90 Link Here
81		82
82	# Ensure that generated files are created early. Use order-only	83	# Ensure that generated files are created early. Use order-only
83	diff --git gdb/config.in gdb/config.in	84	diff --git gdb/config.in gdb/config.in
84	index 9ef53b3..c55c01b 100644	85	index c82a5b4bac..34140b2d59 100644
85	--- gdb/config.in	86	--- gdb/config.in
86	+++ gdb/config.in	87	+++ gdb/config.in
87	@@ -216,6 +216,9 @@	88	@@ -219,6 +219,9 @@
88	/* Define to 1 if your system has the kinfo_getvmmap function. */	89	/* Define to 1 if your system has the kinfo_getvmmap function. */
89	#undef HAVE_KINFO_GETVMMAP	90	#undef HAVE_KINFO_GETVMMAP
90		91
Lines 95-104 Link Here
95	#undef HAVE_LANGINFO_CODESET	96	#undef HAVE_LANGINFO_CODESET
96		97
97	diff --git gdb/configure gdb/configure	98	diff --git gdb/configure gdb/configure
98	index 48acfe5..f0cd958 100755	99	index b5c045cf10..68299ff16c 100755
99	--- gdb/configure	100	--- gdb/configure
100	+++ gdb/configure	101	+++ gdb/configure
101	@@ -7104,6 +7104,66 @@ $as_echo "#define HAVE_KINFO_GETVMMAP 1" >>confdefs.h	102	@@ -7112,6 +7112,66 @@ $as_echo "#define HAVE_KINFO_GETVMMAP 1" >>confdefs.h
102	fi	103	fi
103		104
104		105
Lines 163-175 Link Here
163	+	164	+
164	+	165	+
165		166
166		167	if test "X$prefix" = "XNONE"; then
167		168	acl_final_prefix="$ac_default_prefix"
168	diff --git gdb/configure.ac gdb/configure.ac	169	diff --git gdb/configure.ac gdb/configure.ac
169	index a40860a..9035d48 100644	170	index f774db7ea6..efccdd3fb1 100644
170	--- gdb/configure.ac	171	--- gdb/configure.ac
171	+++ gdb/configure.ac	172	+++ gdb/configure.ac
172	@@ -539,6 +539,11 @@ AC_SEARCH_LIBS(kinfo_getvmmap, util,	173	@@ -540,6 +540,11 @@ AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
173	[AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,	174	[AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
174	[Define to 1 if your system has the kinfo_getvmmap function. ])])	175	[Define to 1 if your system has the kinfo_getvmmap function. ])])
175		176
Lines 181-191 Link Here
181	AM_ICONV	182	AM_ICONV
182		183
183	# GDB may fork/exec the iconv program to get the list of supported character	184	# GDB may fork/exec the iconv program to get the list of supported character
		185	diff --git gdb/configure.tgt gdb/configure.tgt
		186	index 9ee9f7a799..fb14b19405 100644
		187	--- gdb/configure.tgt
		188	+++ gdb/configure.tgt
		189	@@ -190,7 +190,13 @@ i[34567]86--dicos)
		190	i[34567]86--freebsd \| i[34567]86--kfreebsd-gnu)
		191	# Target: FreeBSD/i386
		192	gdb_target_obs="i386-tdep.o i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
		193	- bsd-uthread.o fbsd-tdep.o solib-svr4.o"
		194	+ bsd-uthread.o fbsd-tdep.o solib-svr4.o \
		195	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o i386fbsd-kern.o"
		196	+ if test "x$enable_64_bit_bfd" = "xyes"; then
		197	+ # Target: FreeBSD amd64
		198	+ gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o amd64fbsd-kern.o \
		199	+ ${gdb_target_obs}"
		200	+ fi
		201	;;
		202	i[34567]86--netbsd \| i[34567]86--knetbsd-gnu)
		203	# Target: NetBSD/i386
		204	@@ -360,7 +366,8 @@ mips--netbsd* \| mips--knetbsd*-gnu)
		205	;;
		206	mips--freebsd*)
		207	# Target: MIPS running FreeBSD
		208	- gdb_target_obs="mips-tdep.o mips-fbsd-tdep.o solib-svr4.o fbsd-tdep.o"
		209	+ gdb_target_obs="mips-tdep.o mips-fbsd-tdep.o solib-svr4.o fbsd-tdep.o \
		210	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o mipsfbsd-kern.o"
		211	gdb_sim=../sim/mips/libsim.a
		212	;;
		213	mips64--openbsd*)
		214	@@ -419,7 +426,8 @@ powerpc--freebsd*)
		215	# Target: FreeBSD/powerpc
		216	gdb_target_obs="rs6000-tdep.o ppc-sysv-tdep.o ppc64-tdep.o \
		217	ppcfbsd-tdep.o fbsd-tdep.o solib-svr4.o \
		218	- ravenscar-thread.o ppc-ravenscar-thread.o"
		219	+ ravenscar-thread.o ppc-ravenscar-thread.o \
		220	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o ppcfbsd-kern.o"
		221	;;
		222
		223	powerpc--netbsd \| powerpc--knetbsd-gnu)
		224	@@ -543,7 +551,8 @@ sparc--freebsd* \| sparc--kfreebsd*-gnu)
		225	# Target: FreeBSD/sparc64
		226	gdb_target_obs="sparc-tdep.o sparc64-tdep.o sparc64fbsd-tdep.o \
		227	fbsd-tdep.o solib-svr4.o \
		228	- ravenscar-thread.o sparc-ravenscar-thread.o"
		229	+ ravenscar-thread.o sparc-ravenscar-thread.o \
		230	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o sparc64fbsd-kern.o"
		231	;;
		232	sparc--netbsd \| sparc--knetbsd-gnu)
		233	# Target: NetBSD/sparc
		234	@@ -674,7 +683,9 @@ x86_64--freebsd \| x86_64--kfreebsd-gnu)
		235	# Target: FreeBSD/amd64
		236	gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o i386-tdep.o \
		237	i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
		238	- bsd-uthread.o fbsd-tdep.o solib-svr4.o"
		239	+ bsd-uthread.o fbsd-tdep.o solib-svr4.o \
		240	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o amd64fbsd-kern.o \
		241	+ i386fbsd-kern.o"
		242	;;
		243	x86_64--mingw \| x86_64--cygwin)
		244	# Target: MingW/amd64
184	diff --git gdb/defs.h gdb/defs.h	245	diff --git gdb/defs.h gdb/defs.h
185	index ccdab18..499944f 100644	246	index 9b44f44349..f176be1108 100644
186	--- gdb/defs.h	247	--- gdb/defs.h
187	+++ gdb/defs.h	248	+++ gdb/defs.h
188	@@ -549,6 +549,7 @@ enum gdb_osabi	249	@@ -598,6 +598,7 @@ enum gdb_osabi
189	GDB_OSABI_LINUX,	250	GDB_OSABI_LINUX,
190	GDB_OSABI_FREEBSD_AOUT,	251	GDB_OSABI_FREEBSD_AOUT,
191	GDB_OSABI_FREEBSD_ELF,	252	GDB_OSABI_FREEBSD_ELF,
Lines 194-200 Link Here
194	GDB_OSABI_NETBSD_ELF,	255	GDB_OSABI_NETBSD_ELF,
195	GDB_OSABI_OPENBSD_ELF,	256	GDB_OSABI_OPENBSD_ELF,
196	diff --git gdb/osabi.c gdb/osabi.c	257	diff --git gdb/osabi.c gdb/osabi.c
197	index f7d4e74..130ffef 100644	258	index f7d4e74239..130ffef37e 100644
198	--- gdb/osabi.c	259	--- gdb/osabi.c
199	+++ gdb/osabi.c	260	+++ gdb/osabi.c
200	@@ -66,6 +66,7 @@ static const struct osabi_names gdb_osabi_names[] =	261	@@ -66,6 +66,7 @@ static const struct osabi_names gdb_osabi_names[] =
Lines 206-212 Link Here
206	{ "NetBSD/ELF", NULL },	267	{ "NetBSD/ELF", NULL },
207	{ "OpenBSD/ELF", NULL },	268	{ "OpenBSD/ELF", NULL },
208	diff --git gdb/regcache.c gdb/regcache.c	269	diff --git gdb/regcache.c gdb/regcache.c
209	index a5c90a6..05044e5 100644	270	index a5c90a6314..05044e5293 100644
210	--- gdb/regcache.c	271	--- gdb/regcache.c
211	+++ gdb/regcache.c	272	+++ gdb/regcache.c
212	@@ -1083,6 +1083,20 @@ regcache_raw_supply (struct regcache regcache, int regnum, const void buf)	273	@@ -1083,6 +1083,20 @@ regcache_raw_supply (struct regcache regcache, int regnum, const void buf)
Lines 231-240 Link Here
231		292
232	void	293	void
233	diff --git gdb/regcache.h gdb/regcache.h	294	diff --git gdb/regcache.h gdb/regcache.h
234	index a9fb44b..a156918 100644	295	index 1bb0ce0ec8..65783b6355 100644
235	--- gdb/regcache.h	296	--- gdb/regcache.h
236	+++ gdb/regcache.h	297	+++ gdb/regcache.h
237	@@ -147,6 +147,8 @@ extern void regcache_write_pc (struct regcache *regcache, CORE_ADDR pc);	298	@@ -135,6 +135,8 @@ extern void regcache_write_pc (struct regcache *regcache, CORE_ADDR pc);
238		299
239	extern void regcache_raw_supply (struct regcache *regcache,	300	extern void regcache_raw_supply (struct regcache *regcache,
240	int regnum, const void *buf);	301	int regnum, const void *buf);
Lines 243-295 Link Here
243	extern void regcache_raw_collect (const struct regcache *regcache,	304	extern void regcache_raw_collect (const struct regcache *regcache,
244	int regnum, void *buf);	305	int regnum, void *buf);
245		306
246	diff --git gdb/configure.tgt gdb/configure.tgt
247	index 4e4d6a9..57e4b3a 100644
248	--- gdb/configure.tgt
249	+++ gdb/configure.tgt
250	@@ -185,7 +185,13 @@ i[34567]86--dicos)
251	i[34567]86--freebsd \| i[34567]86--kfreebsd-gnu)
252	# Target: FreeBSD/i386
253	gdb_target_obs="i386-tdep.o i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
254	- bsd-uthread.o fbsd-tdep.o solib-svr4.o"
255	+ bsd-uthread.o fbsd-tdep.o solib-svr4.o \
256	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o i386fbsd-kern.o"
257	+ if test "x$enable_64_bit_bfd" = "xyes"; then
258	+ # Target: FreeBSD amd64
259	+ gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o amd64fbsd-kern.o \
260	+ ${gdb_target_obs}"
261	+ fi
262	;;
263	i[34567]86--netbsd \| i[34567]86--knetbsd-gnu)
264	# Target: NetBSD/i386
265	@@ -405,7 +411,8 @@ powerpc--freebsd*)
266	# Target: FreeBSD/powerpc
267	gdb_target_obs="rs6000-tdep.o ppc-sysv-tdep.o ppc64-tdep.o \
268	ppcfbsd-tdep.o fbsd-tdep.o solib-svr4.o \
269	- ravenscar-thread.o ppc-ravenscar-thread.o"
270	+ ravenscar-thread.o ppc-ravenscar-thread.o \
271	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o ppcfbsd-kern.o"
272	;;
273
274	powerpc--netbsd \| powerpc--knetbsd-gnu)
275	@@ -534,7 +541,8 @@ sparc--freebsd* \| sparc--kfreebsd*-gnu)
276	# Target: FreeBSD/sparc64
277	gdb_target_obs="sparc-tdep.o sparc64-tdep.o sparc64fbsd-tdep.o \
278	fbsd-tdep.o solib-svr4.o \
279	- ravenscar-thread.o sparc-ravenscar-thread.o"
280	+ ravenscar-thread.o sparc-ravenscar-thread.o \
281	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o sparc64fbsd-kern.o"
282	;;
283	sparc--netbsd \| sparc--knetbsd-gnu)
284	# Target: NetBSD/sparc
285	@@ -662,7 +670,9 @@ x86_64--freebsd \| x86_64--kfreebsd-gnu)
286	# Target: FreeBSD/amd64
287	gdb_target_obs="amd64-tdep.o amd64fbsd-tdep.o i386-tdep.o \
288	i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
289	- bsd-uthread.o fbsd-tdep.o solib-svr4.o"
290	+ bsd-uthread.o fbsd-tdep.o solib-svr4.o \
291	+ fbsd-kld.o fbsd-kthr.o fbsd-kvm.o amd64fbsd-kern.o \
292	+ i386fbsd-kern.o"
293	;;
294	x86_64--mingw \| x86_64--cygwin)
295	# Target: MingW/amd64

Line 0 Link Here

(-)files/kgdb/mipsfbsd-kern.c (+305 lines)
		1	/*
		2	* Copyright (c) 2007 Juniper Networks, Inc.
		3	* Copyright (c) 2004 Marcel Moolenaar
		4	* All rights reserved.
		5	*
		6	* Redistribution and use in source and binary forms, with or without
		7	* modification, are permitted provided that the following conditions
		8	* are met:
		9	*
		10	* 1. Redistributions of source code must retain the above copyright
		11	* notice, this list of conditions and the following disclaimer.
		12	* 2. Redistributions in binary form must reproduce the above copyright
		13	* notice, this list of conditions and the following disclaimer in the
		14	* documentation and/or other materials provided with the distribution.
		15	*
		16	* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
		17	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		18	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		19	* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
		20	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		21	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		22	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		23	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		24	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		25	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		26	*
		27	* from: src/gnu/usr.bin/gdb/kgdb/trgt_alpha.c,v 1.2.2.1 2005/09/15 05:32:10 marcel
		28	*/
		29
		30	#include <sys/cdefs.h>
		31	__FBSDID("$FreeBSD$");
		32
		33	#include <sys/types.h>
		34	#ifdef __mips__
		35	#include <machine/asm.h>
		36	#include <machine/pcb.h>
		37	#include <machine/frame.h>
		38	#endif
		39	#include <string.h>
		40
		41	#include <defs.h>
		42	#include <frame-unwind.h>
		43	//#include <target.h>
		44	//#include <gdbthread.h>
		45	//#include <inferior.h>
		46	#include "osabi.h"
		47	#include <regcache.h>
		48	#include "solib.h"
		49	#include "trad-frame.h"
		50	#include <mips-tdep.h>
		51
		52	#include "kgdb.h"
		53
		54	/* Size of struct trapframe in registers. */
		55	#define TRAPFRAME_WORDS 74
		56
		57	/* From sys/mips/include/pcb.h. Offsets in the pcb_context[] array. */
		58	#define FBSD_PCB_REG_S0 0
		59	#define FBSD_PCB_REG_S1 1
		60	#define FBSD_PCB_REG_S2 2
		61	#define FBSD_PCB_REG_S3 3
		62	#define FBSD_PCB_REG_S4 4
		63	#define FBSD_PCB_REG_S5 5
		64	#define FBSD_PCB_REG_S6 6
65	#define FBSD_PCB_REG_S7 7
66	#define FBSD_PCB_REG_SP 8
67	#define FBSD_PCB_REG_S8 9
68	#define FBSD_PCB_REG_RA 10
69	#define FBSD_PCB_REG_SR 11
70	#define FBSD_PCB_REG_GP 12
71	#define FBSD_PCB_REG_PC 13
72
73	#ifdef __mips__
74	_Static_assert(TRAPFRAME_WORDS * sizeof(register_t) ==
75	sizeof(struct trapframe), "TRAPFRAME_WORDS mismatch");
76	_Static_assert(FBSD_PCB_REG_S0 == PCB_REG_S0, "PCB_REG_S0 mismatch");
77	_Static_assert(FBSD_PCB_REG_S1 == PCB_REG_S1, "PCB_REG_S1 mismatch");
78	_Static_assert(FBSD_PCB_REG_S2 == PCB_REG_S2, "PCB_REG_S2 mismatch");
79	_Static_assert(FBSD_PCB_REG_S3 == PCB_REG_S3, "PCB_REG_S3 mismatch");
80	_Static_assert(FBSD_PCB_REG_S4 == PCB_REG_S4, "PCB_REG_S4 mismatch");
81	_Static_assert(FBSD_PCB_REG_S5 == PCB_REG_S5, "PCB_REG_S5 mismatch");
82	_Static_assert(FBSD_PCB_REG_S6 == PCB_REG_S6, "PCB_REG_S6 mismatch");
83	_Static_assert(FBSD_PCB_REG_S7 == PCB_REG_S7, "PCB_REG_S7 mismatch");
84	_Static_assert(FBSD_PCB_REG_SP == PCB_REG_SP, "PCB_REG_SP mismatch");
85	_Static_assert(FBSD_PCB_REG_S8 == PCB_REG_S8, "PCB_REG_S8 mismatch");
86	_Static_assert(FBSD_PCB_REG_RA == PCB_REG_RA, "PCB_REG_RA mismatch");
87	_Static_assert(FBSD_PCB_REG_SR == PCB_REG_SR, "PCB_REG_SR mismatch");
88	_Static_assert(FBSD_PCB_REG_GP == PCB_REG_GP, "PCB_REG_GP mismatch");
89	_Static_assert(FBSD_PCB_REG_PC == PCB_REG_PC, "PCB_REG_PC mismatch");
90	#endif
91
92	static void
93	mipsfbsd_supply_pcb(struct regcache *regcache, CORE_ADDR pcb_addr)
94	{
95	struct gdbarch *gdbarch = get_regcache_arch (regcache);
96	size_t regsize = mips_isa_regsize (gdbarch);
97	gdb_byte buf[regsize * (FBSD_PCB_REG_PC + 1)];
98
99	/* Read the entire pcb_context[] array in one go. The pcb_context[]
100	array is after the pcb_regs member which is a trapframe. */
101	if (target_read_memory (pcb_addr + TRAPFRAME_WORDS * regsize, buf,
102	sizeof(buf)) != 0)
103	return;
104
105	regcache_raw_supply_unsigned (regcache, MIPS_ZERO_REGNUM, 0);
106	regcache_raw_supply (regcache, MIPS_S2_REGNUM - 2,
107	buf + (regsize * FBSD_PCB_REG_S0));
108	regcache_raw_supply (regcache, MIPS_S2_REGNUM - 1,
109	buf + (regsize * FBSD_PCB_REG_S1));
110	regcache_raw_supply (regcache, MIPS_S2_REGNUM,
111	buf + (regsize * FBSD_PCB_REG_S2));
112	regcache_raw_supply (regcache, MIPS_S2_REGNUM + 1,
113	buf + (regsize * FBSD_PCB_REG_S3));
114	regcache_raw_supply (regcache, MIPS_S2_REGNUM + 2,
115	buf + (regsize * FBSD_PCB_REG_S4));
116	regcache_raw_supply (regcache, MIPS_S2_REGNUM + 3,
117	buf + (regsize * FBSD_PCB_REG_S5));
118	regcache_raw_supply (regcache, MIPS_S2_REGNUM + 4,
119	buf + (regsize * FBSD_PCB_REG_S6));
120	regcache_raw_supply (regcache, MIPS_S2_REGNUM + 5,
121	buf + (regsize * FBSD_PCB_REG_S7));
122	regcache_raw_supply (regcache, MIPS_SP_REGNUM,
123	buf + (regsize * FBSD_PCB_REG_SP));
124	regcache_raw_supply (regcache, MIPS_S2_REGNUM + 6,
125	buf + (regsize * FBSD_PCB_REG_S8));
126	regcache_raw_supply (regcache, MIPS_RA_REGNUM,
127	buf + (regsize * FBSD_PCB_REG_RA));
128	regcache_raw_supply (regcache, MIPS_PS_REGNUM,
129	buf + (regsize * FBSD_PCB_REG_SR));
130	regcache_raw_supply (regcache, MIPS_GP_REGNUM,
131	buf + (regsize * FBSD_PCB_REG_GP));
132	regcache_raw_supply (regcache, MIPS_EMBED_PC_REGNUM,
133	buf + (regsize * FBSD_PCB_REG_PC));
134	}
135
136	static struct trad_frame_cache *
137	mipsfbsd_trapframe_cache (struct frame_info this_frame, void *this_cache)
138	{
139	struct gdbarch *gdbarch = get_frame_arch (this_frame);
140	enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
141	size_t regsize = mips_isa_regsize (gdbarch);
142	struct trad_frame_cache *cache;
143	CORE_ADDR addr, func, pc, sp;
144	int regnum;
145
146	if (*this_cache != NULL)
147	return ((struct trad_frame_cache )this_cache);
148
149	cache = trad_frame_cache_zalloc (this_frame);
150	*this_cache = cache;
151
152	func = get_frame_func (this_frame);
153	sp = get_frame_register_signed (this_frame,
154	MIPS_SP_REGNUM + gdbarch_num_regs (gdbarch));
155
156	/* Skip over CALLFRAME_SIZ. */
157	addr = sp;
158	if (regsize == 8)
159	addr += regsize * 4;
160	else
161	addr += regsize * (4 + 2);
162
163	/* GPRs. Skip zero. */
164	addr += regsize;
165	for (regnum = MIPS_AT_REGNUM; regnum <= MIPS_RA_REGNUM; regnum++)
166	{
167	trad_frame_set_reg_addr (cache,
168	regnum + gdbarch_num_regs (gdbarch),
169	addr);
170	addr += regsize;
171	}
172
173	regnum = MIPS_PS_REGNUM;
174	trad_frame_set_reg_addr (cache,
175	regnum + gdbarch_num_regs (gdbarch),
176	addr);
177	addr += regsize;
178
179	/* HI and LO. */
180	regnum = mips_regnum (gdbarch)->lo;
181	trad_frame_set_reg_addr (cache,
182	regnum + gdbarch_num_regs (gdbarch),
183	addr);
184	addr += regsize;
185	regnum = mips_regnum (gdbarch)->hi;
186	trad_frame_set_reg_addr (cache,
187	regnum + gdbarch_num_regs (gdbarch),
188	addr);
189	addr += regsize;
190
191	/* BADVADDR. */
192	regnum = mips_regnum (gdbarch)->badvaddr;
193	trad_frame_set_reg_addr (cache,
194	regnum + gdbarch_num_regs (gdbarch),
195	addr);
196	addr += regsize;
197
198	/* CAUSE. */
199	regnum = mips_regnum (gdbarch)->cause;
200	trad_frame_set_reg_addr (cache,
201	regnum + gdbarch_num_regs (gdbarch),
202	addr);
203	addr += regsize;
204
205	/* PC. */
206	regnum = mips_regnum (gdbarch)->pc;
207	trad_frame_set_reg_addr (cache,
208	regnum + gdbarch_num_regs (gdbarch),
209	addr);
210
211	trad_frame_set_id (cache, frame_id_build (sp + TRAPFRAME_WORDS * regsize,
212	func));
213	return cache;
214	}
215
216	static void
217	mipsfbsd_trapframe_this_id (struct frame_info *this_frame,
218	void *this_cache, struct frame_id this_id)
219	{
220	struct trad_frame_cache *cache =
221	mipsfbsd_trapframe_cache (this_frame, this_cache);
222
223	trad_frame_get_id (cache, this_id);
224	}
225
226	static struct value *
227	mipsfbsd_trapframe_prev_register (struct frame_info *this_frame,
228	void **this_cache, int regnum)
229	{
230	struct trad_frame_cache *cache =
231	mipsfbsd_trapframe_cache (this_frame, this_cache);
232
233	return trad_frame_get_register (cache, this_frame, regnum);
234	}
235
236	static int
237	mipsfbsd_trapframe_sniffer (const struct frame_unwind *self,
238	struct frame_info *this_frame,
239	void **this_prologue_cache)
240	{
241	const char *name;
242
243	find_pc_partial_function (get_frame_func (this_frame), &name, NULL, NULL);
244	return (name && ((strcmp(name, "MipsKernIntr") == 0) \|\|
245	(strcmp(name, "MipsKernGenException") == 0) \|\|
246	(strcmp(name, "MipsTLBInvalidException") == 0)));
247	}
248
249	static const struct frame_unwind mipsfbsd_trapframe_unwind = {
250	SIGTRAMP_FRAME,
251	default_frame_unwind_stop_reason,
252	mipsfbsd_trapframe_this_id,
253	mipsfbsd_trapframe_prev_register,
254	NULL,
255	mipsfbsd_trapframe_sniffer
256	};
257
258	static void
259	mipsfbsd_kernel_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
260	{
261	enum mips_abi abi = mips_abi (gdbarch);
262
263	set_gdbarch_software_single_step (gdbarch, mips_software_single_step);
264
265	switch (abi)
266	{
267	case MIPS_ABI_O32:
268	break;
269	case MIPS_ABI_N32:
270	set_gdbarch_long_double_bit (gdbarch, 128);
271	/* These floatformats should probably be renamed. MIPS uses
272	the same 128-bit IEEE floating point format that IA-64 uses,
273	except that the quiet/signalling NaN bit is reversed (GDB
274	does not distinguish between quiet and signalling NaNs). */
275	set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
276	break;
277	case MIPS_ABI_N64:
278	set_gdbarch_long_double_bit (gdbarch, 128);
279	/* These floatformats should probably be renamed. MIPS uses
280	the same 128-bit IEEE floating point format that IA-64 uses,
281	except that the quiet/signalling NaN bit is reversed (GDB
282	does not distinguish between quiet and signalling NaNs). */
283	set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
284	break;
285	}
286
287	frame_unwind_prepend_unwinder (gdbarch, &mipsfbsd_trapframe_unwind);
288
289	set_solib_ops (gdbarch, &kld_so_ops);
290
291	fbsd_vmcore_set_supply_pcb (gdbarch, mipsfbsd_supply_pcb);
292	fbsd_vmcore_set_cpu_pcb_addr (gdbarch, kgdb_trgt_stop_pcb);
293	}
294
295	void _initialize_mips_kgdb_tdep (void);
296
297	void
298	_initialize_mips_kgdb_tdep (void)
299	{
300	gdbarch_register_osabi_sniffer(bfd_arch_mips,
301	bfd_target_elf_flavour,
302	fbsd_kernel_osabi_sniffer);
303	gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_FREEBSD_ELF_KERNEL,
304	mipsfbsd_kernel_init_abi);
305	}