Normalize names of some source files

Most tdep/nat files are named: <cpu>-<os>-tdep.c <cpu>-<os>-nat.c A few files do not respect this scheme. This patch renames them so that they are consistent with the rest of the files. It builds fine with --enable-targets=all, but that doesn't test the nat files. I can only hope that my grep skill is good enough. gdb/ChangeLog: * Makefile.in (ALL_64_TARGET_OBS, ALL_TARGET_OBS, HFILES_NO_SRCDIR, ALLDEPFILES): Rename files. * alphabsd-nat.c: Rename to ... * alpha-bsd-nat.c: ... this, adjust include. * alphabsd-tdep.c: Rename to ... * alpha-bsd-tdep.c: ... this, adjust include. * alphabsd-tdep.h: Rename to ... * alpha-bsd-tdep.h: ... this, adjust include barrier and comment. * alphafbsd-tdep.c: Rename to ... * alpha-fbsd-tdep.c: ... this. * alphanbsd-tdep.c: Rename to ... * alpha-nbsd-tdep.c: ... this, adjust include. * alphaobsd-tdep.c: Rename to ... * alpha-obsd-tdep.c: ... this, adjust include. * amd64bsd-nat.c: Rename to ... * amd64-bsd-nat.c: ... this, adjust include. * amd64fbsd-nat.c: Rename to ... * amd64-fbsd-nat.c: ... this, adjust include. * amd64fbsd-tdep.c: Rename to ... * amd64-fbsd-tdep.c: ... this, adjust include. * amd64nbsd-nat.c: Rename to ... * amd64-nbsd-nat.c: ... this. * amd64nbsd-tdep.c: Rename to ... * amd64-nbsd-tdep.c: ... this. * amd64obsd-nat.c: Rename to ... * amd64-obsd-nat.c: ... this. * amd64obsd-tdep.c: Rename to ... * amd64-obsd-tdep.c: ... this. * amd64-tdep.h: Update comments. * armbsd-tdep.c: Rename to ... * arm-bsd-tdep.c: ... this. * armnbsd-nat.c: Rename to ... * arm-nbsd-nat.c: ... this. * armnbsd-tdep.c: Rename to ... * arm-nbsd-tdep.c: ... this. * armobsd-tdep.c: Rename to ... * arm-obsd-tdep.c: ... this. * arm-tdep.h: Update comments. * hppabsd-tdep.c: Rename to ... * hppa-bsd-tdep.c: ... this, adjust include. * hppabsd-tdep.h: Rename to ... * hppa-bsd-tdep.h: ... this, adjust include barrier and comment. * hppanbsd-nat.c: Rename to ... * hppa-nbsd-nat.c: ... this. * hppanbsd-tdep.c: Rename to ... * hppa-nbsd-tdep.c: ... this, adjust include. * hppaobsd-nat.c: Rename to ... * hppa-obsd-nat.c: ... this. * hppaobsd-tdep.c: Rename to ... * hppa-obsd-tdep.c: ... this, adjust include. * i386bsd-nat.c: Rename to ... * i386-bsd-nat.c: ... this, adjust include. * i386bsd-nat.h: Rename to ... * i386-bsd-nat.h: ... this, adjust include barrier and comment. * i386bsd-tdep.c: Rename to ... * i386-bsd-tdep.c: ... this. * i386fbsd-nat.c: Rename to ... * i386-fbsd-nat.c: ... this, adjust include. * i386fbsd-tdep.c: Rename to ... * i386-fbsd-tdep.c: ... this, adjust include. * i386fbsd-tdep.h: Rename to ... * i386-fbsd-tdep.h: ... this, adjust include barrier and comment. * i386gnu-nat.c: Rename to ... * i386-gnu-nat.c: ... this. * i386gnu-tdep.c: Rename to ... * i386-gnu-tdep.c: ... this. * i386nbsd-nat.c: Rename to ... * i386-nbsd-nat.c: ... this, adjust include. * i386nbsd-tdep.c: Rename to ... * i386-nbsd-tdep.c: ... this. * i386obsd-nat.c: Rename to ... * i386-obsd-nat.c: ... this, adjust include. * i386obsd-tdep.c: Rename to ... * i386-obsd-tdep.c: ... this. * i386v4-nat.c: Rename to ... * i386-v4-nat.c: ... this. * i386-tdep.h: Update comments. * m68k-tdep.h: Update comments. * m68kbsd-nat.c: Rename to ... * m68k-bsd-nat.c: ... this. * m68kbsd-tdep.c: Rename to ... * m68k-bsd-tdep.c: ... this. * m68klinux-nat.c: Rename to ... * m68k-linux-nat.c: ... this. * m68klinux-tdep.c: Rename to ... * m68k-linux-tdep.c: ... this. * m88kbsd-nat.c: Rename to ... * m88k-bsd-nat.c: ... this. * mipsnbsd-nat.c: Rename to ... * mips-nbsd-nat.c: ... this, adjust include. * mipsnbsd-tdep.c: Rename to ... * mips-nbsd-tdep.c: ... this, adjust include. * mipsnbsd-tdep.h: Rename to ... * mips-nbsd-tdep.h: ... this, adjust include barrier and comment. * mips64obsd-nat.c: Rename to ... * mips64-obsd-nat.c: ... this. * mips64obsd-tdep.c: Rename to ... * mips64-obsd-tdep.c: ... this. * ppcfbsd-nat.c: Rename to ... * ppc-fbsd-nat.c: ... this, adjust include. * ppcfbsd-tdep.c: Rename to ... * ppc-fbsd-tdep.c: ... this, adjust include. * ppcfbsd-tdep.h: Rename to ... * ppc-fbsd-tdep.h: ... this, adjust include barrier and comment. * ppcnbsd-nat.c: Rename to ... * ppc-nbsd-nat.c: ... this, adjust include. * ppcnbsd-tdep.c: Rename to ... * ppc-nbsd-tdep.c: ... this, adjust include. * ppcnbsd-tdep.h: Rename to ... * ppc-nbsd-tdep.h: ... this, adjust include barrier and comment. * ppcobsd-nat.c: Rename to ... * ppc-obsd-nat.c: ... this, adjust include. * ppcobsd-tdep.c: Rename to ... * ppc-obsd-tdep.c: ... this, adjust include. * ppcobsd-tdep.h: Rename to ... * ppc-obsd-tdep.h: ... this, adjust include barrier and comment. * shnbsd-nat.c: Rename to ... * sh-nbsd-nat.c: ... this. * shnbsd-tdep.c: Rename to ... * sh-nbsd-tdep.c: ... this. * sparcnbsd-nat.c: Rename to ... * sparc-nbsd-nat.c: ... this. * sparcnbsd-tdep.c: Rename to ... * sparc-nbsd-tdep.c: ... this. * sparcobsd-tdep.c: Rename to ... * sparc-obsd-tdep.c: ... this. * sparc64fbsd-nat.c: Rename to ... * sparc64-fbsd-nat.c: ... this. * sparc64fbsd-tdep.c: Rename to ... * sparc64-fbsd-tdep.c: ... this. * sparc64nbsd-nat.c: Rename to ... * sparc64-nbsd-nat.c: ... this. * sparc64nbsd-tdep.c: Rename to ... * sparc64-nbsd-tdep.c: ... this. * sparc64obsd-nat.c: Rename to ... * sparc64-obsd-nat.c: ... this. * sparc64obsd-tdep.c: Rename to ... * sparc64-obsd-tdep.c: ... this. * sparc64-tdep.h: Update comments. * vaxbsd-nat.c: Rename to ... * vax-bsd-nat.c: ... this. * vaxnbsd-tdep.c: Rename to ... * vax-nbsd-tdep.c: ... this. * vaxobsd-tdep.c: Rename to ... * vax-obsd-tdep.c: ... this. * x86bsd-nat.h: Rename to ... * x86-bsd-nat.h: ... this, adjust include barrier and comment. * x86bsd-nat.c: Rename to ... * x86-bsd-nat.c: ... this, adjust include. * configure.tgt: Update renamed files. * config/alpha/fbsd.mh: Update renamed files. * config/alpha/nbsd.mh: Update renamed files. * config/arm/nbsdelf.mh: Update renamed files. * config/djgpp/fnchange.lst: Update renamed files. * config/i386/fbsd.mh: Update renamed files. * config/i386/fbsd64.mh: Update renamed files. * config/i386/i386gnu.mh: Update renamed files. * config/i386/i386sol2.mh: Update renamed files. * config/i386/nbsd64.mh: Update renamed files. * config/i386/nbsdelf.mh: Update renamed files. * config/i386/obsd.mh: Update renamed files. * config/i386/obsd64.mh: Update renamed files. * config/i386/sol2-64.mh: Update renamed files. * config/m68k/linux.mh: Update renamed files. * config/m68k/nbsdelf.mh: Update renamed files. * config/m68k/obsd.mh: Update renamed files. * config/m88k/obsd.mh: Update renamed files. * config/mips/nbsd.mh: Update renamed files. * config/mips/obsd64.mh: Update renamed files. * config/pa/nbsd.mh: Update renamed files. * config/pa/obsd.mh: Update renamed files. * config/powerpc/fbsd.mh: Update renamed files. * config/powerpc/nbsd.mh: Update renamed files. * config/powerpc/obsd.mh: Update renamed files. * config/sh/nbsd.mh: Update renamed files. * config/sparc/fbsd.mh: Update renamed files. * config/sparc/nbsd64.mh: Update renamed files. * config/sparc/nbsdelf.mh: Update renamed files. * config/sparc/obsd64.mh: Update renamed files. * config/vax/nbsdelf.mh: Update renamed files. * config/vax/obsd.mh: Update renamed files.
author: Simon Marchi <simon.marchi@polymtl.ca> 2016-11-22 16:14:24 -0500
committer: Simon Marchi <simon.marchi@ericsson.com> 2016-11-23 09:45:23 -0500
commit: 03b62bbbce3dc5f15131d9e78f77d035cd1cffb3 (patch)
tree: 5f5262a7b5dde10272613aca647f92f563a0e573 /gdb/ppc-obsd-tdep.c
parent: b593ecca856860a8b38deb808493bba4beef3aee (diff)
1 files changed, 327 insertions, 0 deletions
diff --git a/gdb/ppc-obsd-tdep.c b/gdb/ppc-obsd-tdep.c
new file mode 100644
index 0000000000..f61dd24b96
--- /dev/null
+++ b/gdb/ppc-obsd-tdep.c
@@ -0,0 +1,327 @@
+/* Target-dependent code for OpenBSD/powerpc.
+
+   Copyright (C) 2004-2016 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 "arch-utils.h"
+#include "frame.h"
+#include "frame-unwind.h"
+#include "gdbtypes.h"
+#include "osabi.h"
+#include "regcache.h"
+#include "regset.h"
+#include "symtab.h"
+#include "trad-frame.h"
+
+#include "ppc-tdep.h"
+#include "ppc-obsd-tdep.h"
+#include "solib-svr4.h"
+
+/* Register offsets from <machine/reg.h>.  */
+struct ppc_reg_offsets ppcobsd_reg_offsets;
+struct ppc_reg_offsets ppcobsd_fpreg_offsets;
+
+
+/* Core file support.  */
+
+/* Supply register REGNUM in the general-purpose register set REGSET
+   from the buffer specified by GREGS and LEN to register cache
+   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */
+
+void
+ppcobsd_supply_gregset (const struct regset *regset,
+			struct regcache *regcache, int regnum,
+			const void *gregs, size_t len)
+{
+  ppc_supply_gregset (regset, regcache, regnum, gregs, len);
+  ppc_supply_fpregset (regset, regcache, regnum, gregs, len);
+}
+
+/* Collect register REGNUM in the general-purpose register set
+   REGSET, from register cache REGCACHE into the buffer specified by
+   GREGS and LEN.  If REGNUM is -1, do this for all registers in
+   REGSET.  */
+
+void
+ppcobsd_collect_gregset (const struct regset *regset,
+			 const struct regcache *regcache, int regnum,
+			 void *gregs, size_t len)
+{
+  ppc_collect_gregset (regset, regcache, regnum, gregs, len);
+  ppc_collect_fpregset (regset, regcache, regnum, gregs, len);
+}
+
+/* OpenBSD/powerpc register set.  */
+
+const struct regset ppcobsd_gregset =
+{
+  &ppcobsd_reg_offsets,
+  ppcobsd_supply_gregset
+};
+
+const struct regset ppcobsd_fpregset =
+{
+  &ppcobsd_fpreg_offsets,
+  ppc_supply_fpregset
+};
+
+/* Iterate over core file register note sections.  */
+
+static void
+ppcobsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
+				      iterate_over_regset_sections_cb *cb,
+				      void *cb_data,
+				      const struct regcache *regcache)
+{
+  cb (".reg", 412, &ppcobsd_gregset, NULL, cb_data);
+}
+
+
+/* Signal trampolines.  */
+
+/* Since OpenBSD 3.2, the sigtramp routine is mapped at a random page
+   in virtual memory.  The randomness makes it somewhat tricky to
+   detect it, but fortunately we can rely on the fact that the start
+   of the sigtramp routine is page-aligned.  We recognize the
+   trampoline by looking for the code that invokes the sigreturn
+   system call.  The offset where we can find that code varies from
+   release to release.
+
+   By the way, the mapping mentioned above is read-only, so you cannot
+   place a breakpoint in the signal trampoline.  */
+
+/* Default page size.  */
+static const int ppcobsd_page_size = 4096;
+
+/* Offset for sigreturn(2).  */
+static const int ppcobsd_sigreturn_offset[] = {
+  0x98,				/* OpenBSD 3.8 */
+  0x0c,				/* OpenBSD 3.2 */
+  -1
+};
+
+static int
+ppcobsd_sigtramp_frame_sniffer (const struct frame_unwind *self,
+				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);
+  CORE_ADDR pc = get_frame_pc (this_frame);
+  CORE_ADDR start_pc = (pc & ~(ppcobsd_page_size - 1));
+  const int *offset;
+  const char *name;
+
+  find_pc_partial_function (pc, &name, NULL, NULL);
+  if (name)
+    return 0;
+
+  for (offset = ppcobsd_sigreturn_offset; *offset != -1; offset++)
+    {
+      gdb_byte buf[2 * PPC_INSN_SIZE];
+      unsigned long insn;
+
+      if (!safe_frame_unwind_memory (this_frame, start_pc + *offset,
+				     buf, sizeof buf))
+	continue;
+
+      /* Check for "li r0,SYS_sigreturn".  */
+      insn = extract_unsigned_integer (buf, PPC_INSN_SIZE, byte_order);
+      if (insn != 0x38000067)
+	continue;
+
+      /* Check for "sc".  */
+      insn = extract_unsigned_integer (buf + PPC_INSN_SIZE,
+				       PPC_INSN_SIZE, byte_order);
+      if (insn != 0x44000002)
+	continue;
+
+      return 1;
+    }
+
+  return 0;
+}
+
+static struct trad_frame_cache *
+ppcobsd_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
+{
+  struct gdbarch *gdbarch = get_frame_arch (this_frame);
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  struct trad_frame_cache *cache;
+  CORE_ADDR addr, base, func;
+  gdb_byte buf[PPC_INSN_SIZE];
+  unsigned long insn, sigcontext_offset;
+  int i;
+
+  if (*this_cache)
+    return (struct trad_frame_cache *) *this_cache;
+
+  cache = trad_frame_cache_zalloc (this_frame);
+  *this_cache = cache;
+
+  func = get_frame_pc (this_frame);
+  func &= ~(ppcobsd_page_size - 1);
+  if (!safe_frame_unwind_memory (this_frame, func, buf, sizeof buf))
+    return cache;
+
+  /* Calculate the offset where we can find `struct sigcontext'.  We
+     base our calculation on the amount of stack space reserved by the
+     first instruction of the signal trampoline.  */
+  insn = extract_unsigned_integer (buf, PPC_INSN_SIZE, byte_order);
+  sigcontext_offset = (0x10000 - (insn & 0x0000ffff)) + 8;
+
+  base = get_frame_register_unsigned (this_frame, gdbarch_sp_regnum (gdbarch));
+  addr = base + sigcontext_offset + 2 * tdep->wordsize;
+  for (i = 0; i < ppc_num_gprs; i++, addr += tdep->wordsize)
+    {
+      int regnum = i + tdep->ppc_gp0_regnum;
+      trad_frame_set_reg_addr (cache, regnum, addr);
+    }
+  trad_frame_set_reg_addr (cache, tdep->ppc_lr_regnum, addr);
+  addr += tdep->wordsize;
+  trad_frame_set_reg_addr (cache, tdep->ppc_cr_regnum, addr);
+  addr += tdep->wordsize;
+  trad_frame_set_reg_addr (cache, tdep->ppc_xer_regnum, addr);
+  addr += tdep->wordsize;
+  trad_frame_set_reg_addr (cache, tdep->ppc_ctr_regnum, addr);
+  addr += tdep->wordsize;
+  trad_frame_set_reg_addr (cache, gdbarch_pc_regnum (gdbarch), addr);
+  /* SRR0?  */
+  addr += tdep->wordsize;
+
+  /* Construct the frame ID using the function start.  */
+  trad_frame_set_id (cache, frame_id_build (base, func));
+
+  return cache;
+}
+
+static void
+ppcobsd_sigtramp_frame_this_id (struct frame_info *this_frame,
+				void **this_cache, struct frame_id *this_id)
+{
+  struct trad_frame_cache *cache =
+    ppcobsd_sigtramp_frame_cache (this_frame, this_cache);
+
+  trad_frame_get_id (cache, this_id);
+}
+
+static struct value *
+ppcobsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
+				      void **this_cache, int regnum)
+{
+  struct trad_frame_cache *cache =
+    ppcobsd_sigtramp_frame_cache (this_frame, this_cache);
+
+  return trad_frame_get_register (cache, this_frame, regnum);
+}
+
+static const struct frame_unwind ppcobsd_sigtramp_frame_unwind = {
+  SIGTRAMP_FRAME,
+  default_frame_unwind_stop_reason,
+  ppcobsd_sigtramp_frame_this_id,
+  ppcobsd_sigtramp_frame_prev_register,
+  NULL,
+  ppcobsd_sigtramp_frame_sniffer
+};
+
+
+static void
+ppcobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  /* OpenBSD doesn't support the 128-bit `long double' from the psABI.  */
+  set_gdbarch_long_double_bit (gdbarch, 64);
+  set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
+
+  /* OpenBSD currently uses a broken GCC.  */
+  set_gdbarch_return_value (gdbarch, ppc_sysv_abi_broken_return_value);
+
+  /* OpenBSD uses SVR4-style shared libraries.  */
+  set_solib_svr4_fetch_link_map_offsets
+    (gdbarch, svr4_ilp32_fetch_link_map_offsets);
+
+  set_gdbarch_iterate_over_regset_sections
+    (gdbarch, ppcobsd_iterate_over_regset_sections);
+
+  frame_unwind_append_unwinder (gdbarch, &ppcobsd_sigtramp_frame_unwind);
+}
+
+
+/* OpenBSD uses uses the traditional NetBSD core file format, even for
+   ports that use ELF.  */
+#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
+
+static enum gdb_osabi
+ppcobsd_core_osabi_sniffer (bfd *abfd)
+{
+  if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
+    return GDB_OSABI_NETBSD_CORE;
+
+  return GDB_OSABI_UNKNOWN;
+}
+
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_ppcobsd_tdep (void);
+
+void
+_initialize_ppcobsd_tdep (void)
+{
+  /* BFD doesn't set a flavour for NetBSD style a.out core files.  */
+  gdbarch_register_osabi_sniffer (bfd_arch_powerpc, bfd_target_unknown_flavour,
+                                  ppcobsd_core_osabi_sniffer);
+
+  gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_OPENBSD_ELF,
+			  ppcobsd_init_abi);
+  gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_OPENBSD_ELF,
+			  ppcobsd_init_abi);
+
+  /* Avoid initializing the register offsets again if they were
+     already initialized by ppcobsd-nat.c.  */
+  if (ppcobsd_reg_offsets.pc_offset == 0)
+    {
+      /* General-purpose registers.  */
+      ppcobsd_reg_offsets.r0_offset = 0;
+      ppcobsd_reg_offsets.gpr_size = 4;
+      ppcobsd_reg_offsets.xr_size = 4;
+      ppcobsd_reg_offsets.pc_offset = 384;
+      ppcobsd_reg_offsets.ps_offset = 388;
+      ppcobsd_reg_offsets.cr_offset = 392;
+      ppcobsd_reg_offsets.lr_offset = 396;
+      ppcobsd_reg_offsets.ctr_offset = 400;
+      ppcobsd_reg_offsets.xer_offset = 404;
+      ppcobsd_reg_offsets.mq_offset = 408;
+
+      /* Floating-point registers.  */
+      ppcobsd_reg_offsets.f0_offset = 128;
+      ppcobsd_reg_offsets.fpscr_offset = -1;
+
+      /* AltiVec registers.  */
+      ppcobsd_reg_offsets.vr0_offset = 0;
+      ppcobsd_reg_offsets.vscr_offset = 512;
+      ppcobsd_reg_offsets.vrsave_offset = 520;
+    }
+
+  if (ppcobsd_fpreg_offsets.fpscr_offset == 0)
+    {
+      /* Floating-point registers.  */
+      ppcobsd_reg_offsets.f0_offset = 0;
+      ppcobsd_reg_offsets.fpscr_offset = 256;
+      ppcobsd_reg_offsets.fpscr_size = 4;
+    }
+}
author	Simon Marchi <simon.marchi@polymtl.ca>	2016-11-22 16:14:24 -0500
committer	Simon Marchi <simon.marchi@ericsson.com>	2016-11-23 09:45:23 -0500
commit	03b62bbbce3dc5f15131d9e78f77d035cd1cffb3 (patch)
tree	5f5262a7b5dde10272613aca647f92f563a0e573 /gdb/ppc-obsd-tdep.c
parent	b593ecca856860a8b38deb808493bba4beef3aee (diff)