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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-fbsd-tdep.c | |
parent | b593ecca856860a8b38deb808493bba4beef3aee (diff) | |
download | gdb-03b62bbbce3dc5f15131d9e78f77d035cd1cffb3.zip gdb-03b62bbbce3dc5f15131d9e78f77d035cd1cffb3.tar.gz gdb-03b62bbbce3dc5f15131d9e78f77d035cd1cffb3.tar.bz2 |
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.
Diffstat (limited to 'gdb/ppc-fbsd-tdep.c')
-rw-r--r-- | gdb/ppc-fbsd-tdep.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/gdb/ppc-fbsd-tdep.c b/gdb/ppc-fbsd-tdep.c new file mode 100644 index 0000000..0e5ead6 --- /dev/null +++ b/gdb/ppc-fbsd-tdep.c @@ -0,0 +1,353 @@ +/* Target-dependent code for PowerPC systems running FreeBSD. + + Copyright (C) 2013-2016 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 "gdbcore.h" +#include "frame-unwind.h" +#include "gdbtypes.h" +#include "osabi.h" +#include "regcache.h" +#include "regset.h" +#include "symtab.h" +#include "target.h" +#include "trad-frame.h" + +#include "ppc-tdep.h" +#include "ppc64-tdep.h" +#include "ppc-fbsd-tdep.h" +#include "fbsd-tdep.h" +#include "solib-svr4.h" + + +/* 32-bit regset descriptions. */ + +static const struct ppc_reg_offsets ppc32_fbsd_reg_offsets = + { + /* General-purpose registers. */ + /* .r0_offset = */ 0, + /* .gpr_size = */ 4, + /* .xr_size = */ 4, + /* .pc_offset = */ 144, + /* .ps_offset = */ -1, + /* .cr_offset = */ 132, + /* .lr_offset = */ 128, + /* .ctr_offset = */ 140, + /* .xer_offset = */ 136, + /* .mq_offset = */ -1, + + /* Floating-point registers. */ + /* .f0_offset = */ 0, + /* .fpscr_offset = */ 256, + /* .fpscr_size = */ 8, +#ifdef NOTYET + /* AltiVec registers. */ + /* .vr0_offset = */ 0, + /* .vscr_offset = */ 512 + 12, + /* .vrsave_offset = */ 512 +#endif + }; + +/* 64-bit regset descriptions. */ + +static const struct ppc_reg_offsets ppc64_fbsd_reg_offsets = + { + /* General-purpose registers. */ + /* .r0_offset = */ 0, + /* .gpr_size = */ 8, + /* .xr_size = */ 8, + /* .pc_offset = */ 288, + /* .ps_offset = */ -1, + /* .cr_offset = */ 264, + /* .lr_offset = */ 256, + /* .ctr_offset = */ 280, + /* .xer_offset = */ 272, + /* .mq_offset = */ -1, + + /* Floating-point registers. */ + /* .f0_offset = */ 0, + /* .fpscr_offset = */ 256, + /* .fpscr_size = */ 8, +#ifdef NOYET + /* AltiVec registers. */ + /* .vr0_offset = */ 0, + /* .vscr_offset = */ 512 + 12, + /* .vrsave_offset = */ 528 +#endif + }; + +/* 32-bit general-purpose register set. */ + +static const struct regset ppc32_fbsd_gregset = { + &ppc32_fbsd_reg_offsets, + ppc_supply_gregset, + ppc_collect_gregset +}; + +/* 64-bit general-purpose register set. */ + +static const struct regset ppc64_fbsd_gregset = { + &ppc64_fbsd_reg_offsets, + ppc_supply_gregset, + ppc_collect_gregset +}; + +/* 32-/64-bit floating-point register set. */ + +static const struct regset ppc32_fbsd_fpregset = { + &ppc32_fbsd_reg_offsets, + ppc_supply_fpregset, + ppc_collect_fpregset +}; + +const struct regset * +ppc_fbsd_gregset (int wordsize) +{ + return wordsize == 8 ? &ppc64_fbsd_gregset : &ppc32_fbsd_gregset; +} + +const struct regset * +ppc_fbsd_fpregset (void) +{ + return &ppc32_fbsd_fpregset; +} + +/* Iterate over core file register note sections. */ + +static void +ppcfbsd_iterate_over_regset_sections (struct gdbarch *gdbarch, + iterate_over_regset_sections_cb *cb, + void *cb_data, + const struct regcache *regcache) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + if (tdep->wordsize == 4) + cb (".reg", 148, &ppc32_fbsd_gregset, NULL, cb_data); + else + cb (".reg", 296, &ppc64_fbsd_gregset, NULL, cb_data); + cb (".reg2", 264, &ppc32_fbsd_fpregset, NULL, cb_data); +} + +/* Default page size. */ + +static const int ppcfbsd_page_size = 4096; + +/* Offset for sigreturn(2). */ + +static const int ppcfbsd_sigreturn_offset[] = { + 0xc, /* FreeBSD 32-bit */ + -1 +}; + +/* Signal trampolines. */ + +static int +ppcfbsd_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 & ~(ppcfbsd_page_size - 1)); + const int *offset; + const char *name; + + /* A stack trampoline is detected if no name is associated + to the current pc and if it points inside a trampoline + sequence. */ + + find_pc_partial_function (pc, &name, NULL, NULL); + + /* If we have a name, we have no trampoline, return. */ + if (name) + return 0; + + for (offset = ppcfbsd_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 != 0x380001a1) + 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 * +ppcfbsd_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); + struct trad_frame_cache *cache; + CORE_ADDR addr, base, func; + gdb_byte buf[PPC_INSN_SIZE]; + 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 &= ~(ppcfbsd_page_size - 1); + if (!safe_frame_unwind_memory (this_frame, func, buf, sizeof buf)) + return cache; + + base = get_frame_register_unsigned (this_frame, gdbarch_sp_regnum (gdbarch)); + addr = base + 0x10 + 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 +ppcfbsd_sigtramp_frame_this_id (struct frame_info *this_frame, + void **this_cache, struct frame_id *this_id) +{ + struct trad_frame_cache *cache = + ppcfbsd_sigtramp_frame_cache (this_frame, this_cache); + + trad_frame_get_id (cache, this_id); +} + +static struct value * +ppcfbsd_sigtramp_frame_prev_register (struct frame_info *this_frame, + void **this_cache, int regnum) +{ + struct trad_frame_cache *cache = + ppcfbsd_sigtramp_frame_cache (this_frame, this_cache); + + return trad_frame_get_register (cache, this_frame, regnum); +} + +static const struct frame_unwind ppcfbsd_sigtramp_frame_unwind = { + SIGTRAMP_FRAME, + default_frame_unwind_stop_reason, + ppcfbsd_sigtramp_frame_this_id, + ppcfbsd_sigtramp_frame_prev_register, + NULL, + ppcfbsd_sigtramp_frame_sniffer +}; + +static enum return_value_convention +ppcfbsd_return_value (struct gdbarch *gdbarch, struct value *function, + struct type *valtype, struct regcache *regcache, + gdb_byte *readbuf, const gdb_byte *writebuf) +{ + return ppc_sysv_abi_broken_return_value (gdbarch, function, valtype, + regcache, readbuf, writebuf); +} + + +static void +ppcfbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + /* Generic FreeBSD support. */ + fbsd_init_abi (info, gdbarch); + + /* FreeBSD 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); + + if (tdep->wordsize == 4) + { + set_gdbarch_return_value (gdbarch, ppcfbsd_return_value); + + set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); + set_solib_svr4_fetch_link_map_offsets (gdbarch, + svr4_ilp32_fetch_link_map_offsets); + + frame_unwind_append_unwinder (gdbarch, &ppcfbsd_sigtramp_frame_unwind); + set_gdbarch_gcore_bfd_target (gdbarch, "elf32-powerpc"); + } + + if (tdep->wordsize == 8) + { + set_gdbarch_convert_from_func_ptr_addr + (gdbarch, ppc64_convert_from_func_ptr_addr); + set_gdbarch_elf_make_msymbol_special (gdbarch, + ppc64_elf_make_msymbol_special); + + set_gdbarch_skip_trampoline_code (gdbarch, ppc64_skip_trampoline_code); + set_solib_svr4_fetch_link_map_offsets (gdbarch, + svr4_lp64_fetch_link_map_offsets); + set_gdbarch_gcore_bfd_target (gdbarch, "elf64-powerpc"); + } + + set_gdbarch_iterate_over_regset_sections + (gdbarch, ppcfbsd_iterate_over_regset_sections); + + set_gdbarch_fetch_tls_load_module_address (gdbarch, + svr4_fetch_objfile_link_map); +} + +/* Provide a prototype to silence -Wmissing-prototypes. */ + +void _initialize_ppcfbsd_tdep (void); + +void +_initialize_ppcfbsd_tdep (void) +{ + gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc, GDB_OSABI_FREEBSD_ELF, + ppcfbsd_init_abi); + gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc64, + GDB_OSABI_FREEBSD_ELF, + ppcfbsd_init_abi); + gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_FREEBSD_ELF, + ppcfbsd_init_abi); +} |