eb14d40688
It will be used when one wants to convert between the internal GDB signal representation (enum gdb_signal) and the target's representation. The idea of this patch came from a chat between Pedro and I on IRC, plus the discussion of my patches to add the new $_exitsignal convenience variable: <http://sourceware.org/ml/gdb-patches/2013-06/msg00452.html> <http://sourceware.org/ml/gdb-patches/2013-06/msg00352.html> What I did was to investigate, on the Linux kernel, which targets shared the signal numbers definition with the generic definition, present at <include/uapi/asm-generic/signal.h>. For the record, I used linux-3.10-rc7 as the main source of information, always looking at <arch/<ARCH_NAME>/include/uapi/asm/signal.h>. For SIGRTMAX (which defaults to _NSIG in most cases), I had to look at different signal-related files, but most of them (except MIPS) were defined to 64 anyway. Then, with all the differences in hand, I implemented the bits on each target. 2013-08-09 Sergio Durigan Junior <sergiodj@redhat.com> * linux-tdep.c: Define enum with generic signal numbers. (linux_gdb_signal_from_target): New function. (linux_gdb_signal_to_target): Likewise. (linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target methods to the functions above. * linux-tdep.h (linux_gdb_signal_from_target): New prototype. (linux_gdb_signal_to_target): Likewise. * alpha-linux-tdep.c: Define new enum with signals different from generic Linux kernel. (alpha_linux_gdb_signal_from_target): New function. (alpha_linux_gdb_signal_to_target): Likewise. (alpha_linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target with the functions mentioned above. * avr-tdep.c: Define enum with differences between Linux kernel and AVR signals. (avr_linux_gdb_signal_from_target): New function. (avr_linux_gdb_signal_to_target): Likewise. (avr_gdbarch_init): Set gdbarch_gdb_signal_{to,from}_target to the functions mentioned above. * sparc-linux-tdep.c: Define enum with differences between SPARC and generic Linux kernel signal numbers. (sparc32_linux_gdb_signal_from_target): New function. (sparc32_linux_gdb_signal_to_target): Likewise. (sparc32_linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target to the functions defined above. * xtensa-linux-tdep.c: Define enum with differences between Xtensa and Linux kernel generic signals. (xtensa_linux_gdb_signal_from_target): New function. (xtensa_linux_gdb_signal_to_target): Likewise. (xtensa_linux_init_abi): Set gdbarch_gdb_signal_to_target to the functions defined above. * mips-linux-tdep.c: Define enum with differences between signals in MIPS and Linux kernel generic ones. (mips_gdb_signal_to_target): New function. (mips_gdb_signal_from_target): Redefine to use new enum, handle only different signals from the Linux kernel generic. (mips_linux_init_abi): Set gdbarch_gdb_signal_{to,from}_target the functions defined above. * mips-linux-tdep.h (enum mips_signals): Remove.
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/* Target-dependent code for GNU/Linux on MIPS processors.
|
|
|
|
Copyright (C) 2006-2013 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/>. */
|
|
|
|
/* Copied from <asm/elf.h>. */
|
|
#define ELF_NGREG 45
|
|
#define ELF_NFPREG 33
|
|
|
|
typedef unsigned char mips_elf_greg_t[4];
|
|
typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG];
|
|
|
|
typedef unsigned char mips_elf_fpreg_t[8];
|
|
typedef mips_elf_fpreg_t mips_elf_fpregset_t[ELF_NFPREG];
|
|
|
|
/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
|
|
#define FPR_BASE 32
|
|
#define PC 64
|
|
#define CAUSE 65
|
|
#define BADVADDR 66
|
|
#define MMHI 67
|
|
#define MMLO 68
|
|
#define FPC_CSR 69
|
|
#define FPC_EIR 70
|
|
#define DSP_BASE 71
|
|
#define DSP_CONTROL 77
|
|
|
|
#define EF_REG0 6
|
|
#define EF_REG31 37
|
|
#define EF_LO 38
|
|
#define EF_HI 39
|
|
#define EF_CP0_EPC 40
|
|
#define EF_CP0_BADVADDR 41
|
|
#define EF_CP0_STATUS 42
|
|
#define EF_CP0_CAUSE 43
|
|
|
|
#define EF_SIZE 180
|
|
|
|
void mips_supply_gregset (struct regcache *, const mips_elf_gregset_t *);
|
|
void mips_fill_gregset (const struct regcache *, mips_elf_gregset_t *, int);
|
|
void mips_supply_fpregset (struct regcache *, const mips_elf_fpregset_t *);
|
|
void mips_fill_fpregset (const struct regcache *, mips_elf_fpregset_t *, int);
|
|
|
|
/* 64-bit support. */
|
|
|
|
/* Copied from <asm/elf.h>. */
|
|
#define MIPS64_ELF_NGREG 45
|
|
#define MIPS64_ELF_NFPREG 33
|
|
|
|
typedef unsigned char mips64_elf_greg_t[8];
|
|
typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
|
|
|
|
typedef unsigned char mips64_elf_fpreg_t[8];
|
|
typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
|
|
|
|
/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
|
|
#define MIPS64_FPR_BASE 32
|
|
#define MIPS64_PC 64
|
|
#define MIPS64_CAUSE 65
|
|
#define MIPS64_BADVADDR 66
|
|
#define MIPS64_MMHI 67
|
|
#define MIPS64_MMLO 68
|
|
#define MIPS64_FPC_CSR 69
|
|
#define MIPS64_FPC_EIR 70
|
|
|
|
#define MIPS64_EF_REG0 0
|
|
#define MIPS64_EF_REG31 31
|
|
#define MIPS64_EF_LO 32
|
|
#define MIPS64_EF_HI 33
|
|
#define MIPS64_EF_CP0_EPC 34
|
|
#define MIPS64_EF_CP0_BADVADDR 35
|
|
#define MIPS64_EF_CP0_STATUS 36
|
|
#define MIPS64_EF_CP0_CAUSE 37
|
|
|
|
#define MIPS64_EF_SIZE 304
|
|
|
|
void mips64_supply_gregset (struct regcache *, const mips64_elf_gregset_t *);
|
|
void mips64_fill_gregset (const struct regcache *,
|
|
mips64_elf_gregset_t *, int);
|
|
void mips64_supply_fpregset (struct regcache *,
|
|
const mips64_elf_fpregset_t *);
|
|
void mips64_fill_fpregset (const struct regcache *,
|
|
mips64_elf_fpregset_t *, int);
|
|
|
|
enum {
|
|
/* The Linux kernel stores an error code from any interrupted
|
|
syscall in a "register" (in $0's save slot). */
|
|
MIPS_RESTART_REGNUM = 79
|
|
};
|
|
|
|
/* Return 1 if MIPS_RESTART_REGNUM is usable. */
|
|
|
|
int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
|