diff options
Diffstat (limited to 'devel/gdb66/files/patch-ppcfbsd-tdep.c')
| -rw-r--r-- | devel/gdb66/files/patch-ppcfbsd-tdep.c | 347 |
1 files changed, 0 insertions, 347 deletions
diff --git a/devel/gdb66/files/patch-ppcfbsd-tdep.c b/devel/gdb66/files/patch-ppcfbsd-tdep.c deleted file mode 100644 index aea014227c55..000000000000 --- a/devel/gdb66/files/patch-ppcfbsd-tdep.c +++ /dev/null @@ -1,347 +0,0 @@ - -$FreeBSD: /tmp/pcvs/ports/devel/gdb66/files/Attic/patch-ppcfbsd-tdep.c,v 1.1 2006-08-12 20:54:37 obrien Exp $ - ---- /dev/null -+++ gdb/ppcfbsd-tdep.c -@@ -0,0 +1,341 @@ -+/* Target-dependent code for PowerPC systems running FreeBSD. -+ -+ Copyright 2002, 2003, 2004 Free Software Foundation, Inc. -+ -+ Contributed by Wasabi Systems, 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 2 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, write to the Free Software -+ Foundation, Inc., 59 Temple Place - Suite 330, -+ Boston, MA 02111-1307, USA. */ -+ -+#include "defs.h" -+#include "gdbcore.h" -+#include "regcache.h" -+#include "target.h" -+#include "breakpoint.h" -+#include "value.h" -+#include "osabi.h" -+ -+#include "ppc-tdep.h" -+#include "ppcfbsd-tdep.h" -+//#include "fbsd-tdep.h" -+#include "tramp-frame.h" -+#include "trad-frame.h" -+#include "gdb_assert.h" -+#include "solib-svr4.h" -+ -+#define REG_FIXREG_OFFSET(x) ((x) * 4) -+#define REG_LR_OFFSET (32 * 4) -+#define REG_CR_OFFSET (33 * 4) -+#define REG_XER_OFFSET (34 * 4) -+#define REG_CTR_OFFSET (35 * 4) -+#define REG_PC_OFFSET (36 * 4) -+#define SIZEOF_STRUCT_REG (37 * 4) -+ -+#define FPREG_FPR_OFFSET(x) ((x) * 8) -+#define FPREG_FPSCR_OFFSET (32 * 8) -+#define SIZEOF_STRUCT_FPREG (33 * 8) -+ -+void -+ppcfbsd_supply_reg (char *regs, int regno) -+{ -+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); -+ int i; -+ -+ for (i = 0; i < ppc_num_gprs; i++) -+ { -+ if (regno == tdep->ppc_gp0_regnum + i || regno == -1) -+ regcache_raw_supply (current_regcache, tdep->ppc_gp0_regnum + i, -+ regs + REG_FIXREG_OFFSET (i)); -+ } -+ -+ if (regno == tdep->ppc_lr_regnum || regno == -1) -+ regcache_raw_supply (current_regcache, tdep->ppc_lr_regnum, -+ regs + REG_LR_OFFSET); -+ -+ if (regno == tdep->ppc_cr_regnum || regno == -1) -+ regcache_raw_supply (current_regcache, tdep->ppc_cr_regnum, -+ regs + REG_CR_OFFSET); -+ -+ if (regno == tdep->ppc_xer_regnum || regno == -1) -+ regcache_raw_supply (current_regcache, tdep->ppc_xer_regnum, -+ regs + REG_XER_OFFSET); -+ -+ if (regno == tdep->ppc_ctr_regnum || regno == -1) -+ regcache_raw_supply (current_regcache, tdep->ppc_ctr_regnum, -+ regs + REG_CTR_OFFSET); -+ -+ if (regno == PC_REGNUM || regno == -1) -+ regcache_raw_supply (current_regcache, PC_REGNUM, -+ regs + REG_PC_OFFSET); -+} -+ -+void -+ppcfbsd_fill_reg (char *regs, int regno) -+{ -+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); -+ int i; -+ -+ for (i = 0; i < ppc_num_gprs; i++) -+ { -+ if (regno == tdep->ppc_gp0_regnum + i || regno == -1) -+ regcache_raw_collect (current_regcache, tdep->ppc_gp0_regnum + i, -+ regs + REG_FIXREG_OFFSET (i)); -+ } -+ -+ if (regno == tdep->ppc_lr_regnum || regno == -1) -+ regcache_raw_collect (current_regcache, tdep->ppc_lr_regnum, -+ regs + REG_LR_OFFSET); -+ -+ if (regno == tdep->ppc_cr_regnum || regno == -1) -+ regcache_raw_collect (current_regcache, tdep->ppc_cr_regnum, -+ regs + REG_CR_OFFSET); -+ -+ if (regno == tdep->ppc_xer_regnum || regno == -1) -+ regcache_raw_collect (current_regcache, tdep->ppc_xer_regnum, -+ regs + REG_XER_OFFSET); -+ -+ if (regno == tdep->ppc_ctr_regnum || regno == -1) -+ regcache_raw_collect (current_regcache, tdep->ppc_ctr_regnum, -+ regs + REG_CTR_OFFSET); -+ -+ if (regno == PC_REGNUM || regno == -1) -+ regcache_raw_collect (current_regcache, PC_REGNUM, regs + REG_PC_OFFSET); -+} -+ -+void -+ppcfbsd_supply_fpreg (char *fpregs, int regno) -+{ -+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); -+ int i; -+ -+ /* FIXME: jimb/2004-05-05: Some PPC variants don't have floating -+ point registers. Traditionally, GDB's register set has still -+ listed the floating point registers for such machines, so this -+ code is harmless. However, the new E500 port actually omits the -+ floating point registers entirely from the register set --- they -+ don't even have register numbers assigned to them. -+ -+ It's not clear to me how best to update this code, so this assert -+ will alert the first person to encounter the NetBSD/E500 -+ combination to the problem. */ -+ gdb_assert (ppc_floating_point_unit_p (current_gdbarch)); -+ -+ for (i = 0; i < ppc_num_fprs; i++) -+ { -+ if (regno == tdep->ppc_fp0_regnum + i || regno == -1) -+ regcache_raw_supply (current_regcache, tdep->ppc_fp0_regnum + i, -+ fpregs + FPREG_FPR_OFFSET (i)); -+ } -+ -+ if (regno == tdep->ppc_fpscr_regnum || regno == -1) -+ regcache_raw_supply (current_regcache, tdep->ppc_fpscr_regnum, -+ fpregs + FPREG_FPSCR_OFFSET); -+} -+ -+void -+ppcfbsd_fill_fpreg (char *fpregs, int regno) -+{ -+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); -+ int i; -+ -+ /* FIXME: jimb/2004-05-05: Some PPC variants don't have floating -+ point registers. Traditionally, GDB's register set has still -+ listed the floating point registers for such machines, so this -+ code is harmless. However, the new E500 port actually omits the -+ floating point registers entirely from the register set --- they -+ don't even have register numbers assigned to them. -+ -+ It's not clear to me how best to update this code, so this assert -+ will alert the first person to encounter the NetBSD/E500 -+ combination to the problem. */ -+ gdb_assert (ppc_floating_point_unit_p (current_gdbarch)); -+ -+ for (i = 0; i < ppc_num_fprs; i++) -+ { -+ if (regno == tdep->ppc_fp0_regnum + i || regno == -1) -+ regcache_raw_collect (current_regcache, tdep->ppc_fp0_regnum + i, -+ fpregs + FPREG_FPR_OFFSET (i)); -+ } -+ -+ if (regno == tdep->ppc_fpscr_regnum || regno == -1) -+ regcache_raw_collect (current_regcache, tdep->ppc_fpscr_regnum, -+ fpregs + FPREG_FPSCR_OFFSET); -+} -+ -+static void -+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which, -+ CORE_ADDR ignore) -+{ -+ char *regs, *fpregs; -+ -+ /* We get everything from one section. */ -+ if (which != 0) -+ return; -+ -+ regs = core_reg_sect; -+ fpregs = core_reg_sect + SIZEOF_STRUCT_REG; -+ -+ /* Integer registers. */ -+ ppcfbsd_supply_reg (regs, -1); -+ -+ /* Floating point registers. */ -+ ppcfbsd_supply_fpreg (fpregs, -1); -+} -+ -+static void -+fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, int which, -+ CORE_ADDR ignore) -+{ -+ switch (which) -+ { -+ case 0: /* Integer registers. */ -+ if (core_reg_size != SIZEOF_STRUCT_REG) -+ warning (_("Wrong size register set in core file.")); -+ else -+ ppcfbsd_supply_reg (core_reg_sect, -1); -+ break; -+ -+ case 2: /* Floating point registers. */ -+ if (core_reg_size != SIZEOF_STRUCT_FPREG) -+ warning (_("Wrong size FP register set in core file.")); -+ else -+ ppcfbsd_supply_fpreg (core_reg_sect, -1); -+ break; -+ -+ default: -+ /* Don't know what kind of register request this is; just ignore it. */ -+ break; -+ } -+} -+ -+static struct core_fns ppcfbsd_core_fns = -+{ -+ bfd_target_unknown_flavour, /* core_flavour */ -+ default_check_format, /* check_format */ -+ default_core_sniffer, /* core_sniffer */ -+ fetch_core_registers, /* core_read_registers */ -+ NULL /* next */ -+}; -+ -+static struct core_fns ppcfbsd_elfcore_fns = -+{ -+ bfd_target_elf_flavour, /* core_flavour */ -+ default_check_format, /* check_format */ -+ default_core_sniffer, /* core_sniffer */ -+ fetch_elfcore_registers, /* core_read_registers */ -+ NULL /* next */ -+}; -+ -+/* NetBSD is confused. It appears that 1.5 was using the correct SVr4 -+ convention but, 1.6 switched to the below broken convention. For -+ the moment use the broken convention. Ulgh!. */ -+ -+static enum return_value_convention -+ppcfbsd_return_value (struct gdbarch *gdbarch, struct type *valtype, -+ struct regcache *regcache, void *readbuf, -+ const void *writebuf) -+{ -+ if ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT -+ || TYPE_CODE (valtype) == TYPE_CODE_UNION) -+ && !((TYPE_LENGTH (valtype) == 16 || TYPE_LENGTH (valtype) == 8)) -+ && !(TYPE_LENGTH (valtype) == 1 -+ || TYPE_LENGTH (valtype) == 2 -+ || TYPE_LENGTH (valtype) == 4 -+ || TYPE_LENGTH (valtype) == 8)) -+ return RETURN_VALUE_STRUCT_CONVENTION; -+ else -+ return ppc_sysv_abi_broken_return_value (gdbarch, valtype, regcache, -+ readbuf, writebuf); -+} -+ -+static void -+ppcfbsd_sigtramp_cache_init (const struct tramp_frame *self, -+ struct frame_info *next_frame, -+ struct trad_frame_cache *this_cache, -+ CORE_ADDR func) -+{ -+ CORE_ADDR base; -+ CORE_ADDR offset; -+ int i; -+ struct gdbarch *gdbarch = get_frame_arch (next_frame); -+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); -+ -+ base = frame_unwind_register_unsigned (next_frame, SP_REGNUM); -+ offset = base + 0x18 + 2 * tdep->wordsize; -+ for (i = 0; i < ppc_num_gprs; i++) -+ { -+ int regnum = i + tdep->ppc_gp0_regnum; -+ trad_frame_set_reg_addr (this_cache, regnum, offset); -+ offset += tdep->wordsize; -+ } -+ trad_frame_set_reg_addr (this_cache, tdep->ppc_lr_regnum, offset); -+ offset += tdep->wordsize; -+ trad_frame_set_reg_addr (this_cache, tdep->ppc_cr_regnum, offset); -+ offset += tdep->wordsize; -+ trad_frame_set_reg_addr (this_cache, tdep->ppc_xer_regnum, offset); -+ offset += tdep->wordsize; -+ trad_frame_set_reg_addr (this_cache, tdep->ppc_ctr_regnum, offset); -+ offset += tdep->wordsize; -+ trad_frame_set_reg_addr (this_cache, PC_REGNUM, offset); /* SRR0? */ -+ offset += tdep->wordsize; -+ -+ /* Construct the frame ID using the function start. */ -+ trad_frame_set_id (this_cache, frame_id_build (base, func)); -+} -+ -+/* Given the NEXT frame, examine the instructions at and around this -+ frame's resume address (aka PC) to see of they look like a signal -+ trampoline. Return the address of the trampolines first -+ instruction, or zero if it isn't a signal trampoline. */ -+ -+static const struct tramp_frame ppcfbsd_sigtramp = { -+ SIGTRAMP_FRAME, -+ 4, /* insn size */ -+ { /* insn */ -+ { 0x38610018, -1 }, /* addi r3,r1,24 */ -+ { 0x38000127, -1 }, /* li r0,295 */ -+ { 0x44000002, -1 }, /* sc */ -+ { 0x38000001, -1 }, /* li r0,1 */ -+ { 0x44000002, -1 }, /* sc */ -+ { TRAMP_SENTINEL_INSN, -1 } -+ }, -+ ppcfbsd_sigtramp_cache_init -+}; -+ -+static void -+ppcfbsd_init_abi (struct gdbarch_info info, -+ struct gdbarch *gdbarch) -+{ -+ /* For NetBSD, this is an on again, off again thing. Some systems -+ do use the broken struct convention, and some don't. */ -+ set_gdbarch_return_value (gdbarch, ppcfbsd_return_value); -+ set_solib_svr4_fetch_link_map_offsets (gdbarch, -+ svr4_ilp32_fetch_link_map_offsets); -+ tramp_frame_prepend_unwinder (gdbarch, &ppcfbsd_sigtramp); -+} -+ -+void -+_initialize_ppcfbsd_tdep (void) -+{ -+ gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_FREEBSD_ELF, -+ ppcfbsd_init_abi); -+ gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_FREEBSD_ELF, -+ ppcfbsd_init_abi); -+ -+ deprecated_add_core_fns (&ppcfbsd_core_fns); -+ deprecated_add_core_fns (&ppcfbsd_elfcore_fns); -+} |