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822b65708d
* features/mips-linux.xml, features/mips64-linux.xml: New files. * mips-linux-nat.c (mips_linux_register_addr): Handle MIPS_RESTART_REGNUM. (mips64_linux_register_addr): Likewise. (super_xfer_partial, mips_linux_xfer_partial): New. (_initialize_mips_linux_nat): Add them to the target_ops. * mips-linux-tdep.c (mips_supply_gregset): Handle MIPS_RESTART_REGNUM. (mips_fill_gregset, mips64_supply_gregset, mips64_fill_gregset) (mips_linux_o32_sigframe_init) (mips_linux_n32n64_sigframe_init): Likewise. (mips_linux_write_pc, mips_linux_restart_reg_p): New. (mips_linux_init_abi): Use mips_linux_write_pc. Check for the "org.gnu.gdb.mips.linux" feature. * mips-linux-tdep.h (MIPS_RESTART_REGNUM): New constant. (mips_linux_restart_reg_p): New prototype. * mips-tdep.c (mips_gdbarch_init): Pass tdesc_data to the OS/ABI initialization routine. * Makefile.in (mips-linux-tdep.o, mips-linux-nat.o): Update. * gdb.texinfo (MIPS Features): Document org.gnu.gdb.mips.linux.
105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
/* Target-dependent code for GNU/Linux on MIPS processors.
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Copyright 2006, 2007 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Copied from <asm/elf.h>. */
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#define ELF_NGREG 45
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#define ELF_NFPREG 33
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typedef unsigned char mips_elf_greg_t[4];
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typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG];
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typedef unsigned char mips_elf_fpreg_t[8];
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typedef mips_elf_fpreg_t mips_elf_fpregset_t[ELF_NFPREG];
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/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
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#define FPR_BASE 32
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#define PC 64
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#define CAUSE 65
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#define BADVADDR 66
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#define MMHI 67
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#define MMLO 68
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#define FPC_CSR 69
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#define FPC_EIR 70
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#define EF_REG0 6
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#define EF_REG31 37
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#define EF_LO 38
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#define EF_HI 39
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#define EF_CP0_EPC 40
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#define EF_CP0_BADVADDR 41
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#define EF_CP0_STATUS 42
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#define EF_CP0_CAUSE 43
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#define EF_SIZE 180
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void mips_supply_gregset (struct regcache *, const mips_elf_gregset_t *);
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void mips_fill_gregset (const struct regcache *, mips_elf_gregset_t *, int);
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void mips_supply_fpregset (struct regcache *, const mips_elf_fpregset_t *);
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void mips_fill_fpregset (const struct regcache *, mips_elf_fpregset_t *, int);
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/* 64-bit support. */
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/* Copied from <asm/elf.h>. */
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#define MIPS64_ELF_NGREG 45
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#define MIPS64_ELF_NFPREG 33
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typedef unsigned char mips64_elf_greg_t[8];
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typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
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typedef unsigned char mips64_elf_fpreg_t[8];
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typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
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/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
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#define MIPS64_FPR_BASE 32
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#define MIPS64_PC 64
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#define MIPS64_CAUSE 65
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#define MIPS64_BADVADDR 66
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#define MIPS64_MMHI 67
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#define MIPS64_MMLO 68
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#define MIPS64_FPC_CSR 69
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#define MIPS64_FPC_EIR 70
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#define MIPS64_EF_REG0 0
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#define MIPS64_EF_REG31 31
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#define MIPS64_EF_LO 32
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#define MIPS64_EF_HI 33
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#define MIPS64_EF_CP0_EPC 34
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#define MIPS64_EF_CP0_BADVADDR 35
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#define MIPS64_EF_CP0_STATUS 36
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#define MIPS64_EF_CP0_CAUSE 37
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#define MIPS64_EF_SIZE 304
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void mips64_supply_gregset (struct regcache *, const mips64_elf_gregset_t *);
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void mips64_fill_gregset (const struct regcache *, mips64_elf_gregset_t *, int);
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void mips64_supply_fpregset (struct regcache *, const mips64_elf_fpregset_t *);
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void mips64_fill_fpregset (const struct regcache *, mips64_elf_fpregset_t *, int);
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enum {
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/* The Linux kernel stores an error code from any interrupted
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syscall in a "register" (in $0's save slot). */
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MIPS_RESTART_REGNUM = MIPS_LAST_EMBED_REGNUM + 1
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};
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/* Return 1 if MIPS_RESTART_REGNUM is usable. */
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int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
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