From b46a873c9209a464743bf2b4b1cdb4ebc3ba1f85 Mon Sep 17 00:00:00 2001 From: Olivier Cochard Date: Fri, 13 Jan 2017 06:56:50 +0000 Subject: Fix my previous wrong commit by removing duplicate file content. --- devel/gdb/files/commit-387360daf9 | 680 -------------------------------------- 1 file changed, 680 deletions(-) (limited to 'devel/gdb/files/commit-387360daf9') diff --git a/devel/gdb/files/commit-387360daf9 b/devel/gdb/files/commit-387360daf9 index e0a03ad2d786..692e650e2560 100644 --- a/devel/gdb/files/commit-387360daf9 +++ b/devel/gdb/files/commit-387360daf9 @@ -678,683 +678,3 @@ index 0000000000..8a197e6325 +void mips_fbsd_collect_gregs (const struct regcache *, int, void *, size_t); + +#endif /* MIPS_FBSD_TDEP_H */ -commit 9978d70207d8a6bc7ff3c570814053c68e78b913 -Author: John Baldwin -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 . */ -+ -+#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 . 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 . 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 . */ -+ -+#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 */ -- cgit v1.2.3