* Makefile.in (mips_linux_tdep_h): New.
(mpis-linux-nat.o, mips-linux-tdep.o): Update. * mips-linux-nat.c: Include "inferior.h", "mips-linux-tdep.h", and <sys/ptrace.h>. (have_ptrace_regsets, super_fetch_registers, super_store_registers) (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers, mips64_linux_fetch_registers) (mips64_linux_store_registers): New. (_initialize_mips_linux_nat): Override to_fetch_registers and to_store_registers. * mips-linux-tdep.h: New file. * mips-linux-tdep.c: Include "mips-linux-tdep.c". (ELF_NGREG, ELF_NFPREG, elf_greg_t, elf_gregset_t, elf_fpreg_t) (elf_fpregset_t, FPR_BASE, PC, CAUSE, BADVADDR, MMHI, MMLO) (FPC_CSR, FPC_EIR, EF_REG0, EF_REG31, EF_LO, EF_HI, EF_CP0_EPC) (EF_CP0_BADVADDR, EF_CP0_STATUS, EF_CP0_CAUSE, EF_SIZE) (MIPS64_ELF_NGREG, MIPS64_ELF_NFPREG, mips64_elf_greg_t) (mips64_elf_gregset_t, mips64_elf_fpreg_t, mips64_elf_fpregset_t) (MIPS64_FPR_BASE, MIPS64_PC, MIPS64_CAUSE, MIPS64_BADVADDR) (MIPS64_MMHI, MIPS64_MMLO, MIPS64_FPC_CSR, MIPS64_FPC_EIR) (MIPS64_EF_REG0, MIPS64_EF_REG31, MIPS64_EF_LO, MIPS64_EF_HI) (MIPS64_EF_CP0_EPC, MIPS64_EF_CP0_BADVADDR, MIPS64_EF_CP0_STATUS) (MIPS64_EF_CP0_CAUSE, MIPS64_EF_SIZE): Delete. (supply_32bit_reg): Use gdb_byte. (supply_64bit_reg): New. (mips_supply_gregset, mips_fill_gregset, mips_supply_fpregset) (mips_fill_fpregset, fetch_core_registers, supply_gregset) (fill_gregset, supply_fpregset): Update for renamed types. (mips64_supply_gregset): Use gdb_byte and supply_64bit_reg. (mips64_fill_gregset): Make global. Handle 32-bit register sizes. (mips64_fill_fpregset): Make global. Use gdb_byte. Handle FP regsets properly.
This commit is contained in:
Daniel Jacobowitz
parent
9f62d0e212
commit
d37eb719b8
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@ -1,3 +1,39 @@
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2006-03-15 Daniel Jacobowitz <dan@codesourcery.com>
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* Makefile.in (mips_linux_tdep_h): New.
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(mpis-linux-nat.o, mips-linux-tdep.o): Update.
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* mips-linux-nat.c: Include "inferior.h", "mips-linux-tdep.h", and
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<sys/ptrace.h>.
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(have_ptrace_regsets, super_fetch_registers, super_store_registers)
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(mips64_linux_regsets_fetch_registers)
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(mips64_linux_regsets_store_registers, mips64_linux_fetch_registers)
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(mips64_linux_store_registers): New.
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(_initialize_mips_linux_nat): Override to_fetch_registers and
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to_store_registers.
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* mips-linux-tdep.h: New file.
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* mips-linux-tdep.c: Include "mips-linux-tdep.c".
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(ELF_NGREG, ELF_NFPREG, elf_greg_t, elf_gregset_t, elf_fpreg_t)
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(elf_fpregset_t, FPR_BASE, PC, CAUSE, BADVADDR, MMHI, MMLO)
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(FPC_CSR, FPC_EIR, EF_REG0, EF_REG31, EF_LO, EF_HI, EF_CP0_EPC)
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(EF_CP0_BADVADDR, EF_CP0_STATUS, EF_CP0_CAUSE, EF_SIZE)
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(MIPS64_ELF_NGREG, MIPS64_ELF_NFPREG, mips64_elf_greg_t)
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(mips64_elf_gregset_t, mips64_elf_fpreg_t, mips64_elf_fpregset_t)
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(MIPS64_FPR_BASE, MIPS64_PC, MIPS64_CAUSE, MIPS64_BADVADDR)
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(MIPS64_MMHI, MIPS64_MMLO, MIPS64_FPC_CSR, MIPS64_FPC_EIR)
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(MIPS64_EF_REG0, MIPS64_EF_REG31, MIPS64_EF_LO, MIPS64_EF_HI)
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(MIPS64_EF_CP0_EPC, MIPS64_EF_CP0_BADVADDR, MIPS64_EF_CP0_STATUS)
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(MIPS64_EF_CP0_CAUSE, MIPS64_EF_SIZE): Delete.
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(supply_32bit_reg): Use gdb_byte.
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(supply_64bit_reg): New.
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(mips_supply_gregset, mips_fill_gregset, mips_supply_fpregset)
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(mips_fill_fpregset, fetch_core_registers, supply_gregset)
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(fill_gregset, supply_fpregset): Update for renamed types.
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(mips64_supply_gregset): Use gdb_byte and supply_64bit_reg.
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(mips64_fill_gregset): Make global. Handle 32-bit register
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sizes.
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(mips64_fill_fpregset): Make global. Use gdb_byte. Handle
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FP regsets properly.
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2006-03-15 Daniel Jacobowitz <dan@codesourcery.com>
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* mips-linux-tdep.c (mips_supply_gregset): Renamed from supply_gregset.
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@ -737,6 +737,7 @@ macrotab_h = macrotab.h
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main_h = main.h
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mdebugread_h = mdebugread.h $(coff_sym_h) $(coff_symconst_h)
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memattr_h = memattr.h
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mips_linux_tdep_h = mips-linux-tdep.h
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mips_mdebug_tdep_h = mips-mdebug-tdep.h
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mipsnbsd_tdep_h = mipsnbsd-tdep.h
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mips_tdep_h = mips-tdep.h
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@ -2295,11 +2296,12 @@ mips64obsd-tdep.o: mips64obsd-tdep.c $(defs_h) $(osabi_h) $(regcache_h) \
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$(gdb_string_h) $(mips_tdep_h) $(solib_svr4_h)
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mips-irix-tdep.o: mips-irix-tdep.c $(defs_h) $(osabi_h) $(elf_bfd_h)
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mips-linux-nat.o: mips-linux-nat.c $(defs_h) $(mips_tdep_h) $(target_h) \
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$(linux_nat_h) $(gdb_proc_service_h)
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$(linux_nat_h) $(gdb_proc_service_h) $(mips_linux_tdep_h) \
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$(inferior_h)
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mips-linux-tdep.o: mips-linux-tdep.c $(defs_h) $(gdbcore_h) $(target_h) \
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$(solib_svr4_h) $(osabi_h) $(mips_tdep_h) $(gdb_string_h) \
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$(gdb_assert_h) $(frame_h) $(regcache_h) $(trad_frame_h) \
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$(tramp_frame_h) $(floatformat_h)
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$(tramp_frame_h) $(floatformat_h) $(mips_linux_tdep_h)
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mips-mdebug-tdep.o: mips-mdebug-tdep.c $(defs_h) $(frame_h) $(mips_tdep_h) \
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$(trad_frame_h) $(block_h) $(symtab_h) $(objfiles_h) $(elf_mips_h) \
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$(elf_bfd_h) $(gdb_assert_h) $(frame_unwind_h) $(frame_base_h) \
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@ -21,16 +21,30 @@
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Boston, MA 02110-1301, USA. */
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#include "defs.h"
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#include "inferior.h"
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#include "mips-tdep.h"
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#include "target.h"
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#include "linux-nat.h"
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#include "mips-linux-tdep.h"
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#include "gdb_proc_service.h"
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#include <sys/ptrace.h>
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#ifndef PTRACE_GET_THREAD_AREA
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#define PTRACE_GET_THREAD_AREA 25
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#endif
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/* Assume that we have PTRACE_GETREGS et al. support. If we do not,
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we'll clear this and use PTRACE_PEEKUSER instead. */
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static int have_ptrace_regsets = 1;
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/* Saved function pointers to fetch and store a single register using
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PTRACE_PEEKUSER and PTRACE_POKEUSER. */
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void (*super_fetch_registers) (int);
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void (*super_store_registers) (int);
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/* Pseudo registers can not be read. ptrace does not provide a way to
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read (or set) MIPS_PS_REGNUM, and there's no point in reading or
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setting MIPS_ZERO_REGNUM. We also can not set BADVADDR, CAUSE, or
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@ -89,10 +103,161 @@ ps_get_thread_area (const struct ps_prochandle *ph,
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return PS_OK;
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}
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/* Fetch REGNO (or all registers if REGNO == -1) from the target
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using PTRACE_GETREGS et al. */
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static void
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mips64_linux_regsets_fetch_registers (int regno)
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{
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int is_fp;
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int tid;
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if (regno >= mips_regnum (current_gdbarch)->fp0
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&& regno <= mips_regnum (current_gdbarch)->fp0 + 32)
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is_fp = 1;
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else if (regno == mips_regnum (current_gdbarch)->fp_control_status)
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is_fp = 1;
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else if (regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
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is_fp = 1;
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else
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is_fp = 0;
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tid = ptid_get_lwp (inferior_ptid);
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if (tid == 0)
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tid = ptid_get_pid (inferior_ptid);
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if (regno == -1 || !is_fp)
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{
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mips64_elf_gregset_t regs;
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if (ptrace (PTRACE_GETREGS, tid, 0L, (PTRACE_TYPE_ARG3) ®s) == -1)
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{
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if (errno == EIO)
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{
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have_ptrace_regsets = 0;
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return;
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}
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perror_with_name (_("Couldn't get registers"));
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}
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mips64_supply_gregset (®s);
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}
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if (regno == -1 || is_fp)
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{
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mips64_elf_fpregset_t fp_regs;
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if (ptrace (PTRACE_GETFPREGS, tid, 0L,
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(PTRACE_TYPE_ARG3) &fp_regs) == -1)
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{
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if (errno == EIO)
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{
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have_ptrace_regsets = 0;
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return;
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}
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perror_with_name (_("Couldn't get FP registers"));
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}
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mips64_supply_fpregset (&fp_regs);
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}
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}
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/* Store REGNO (or all registers if REGNO == -1) to the target
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using PTRACE_SETREGS et al. */
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static void
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mips64_linux_regsets_store_registers (int regno)
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{
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int is_fp;
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int tid;
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if (regno >= mips_regnum (current_gdbarch)->fp0
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&& regno <= mips_regnum (current_gdbarch)->fp0 + 32)
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is_fp = 1;
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else if (regno == mips_regnum (current_gdbarch)->fp_control_status)
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is_fp = 1;
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else if (regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
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is_fp = 1;
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else
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is_fp = 0;
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tid = ptid_get_lwp (inferior_ptid);
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if (tid == 0)
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tid = ptid_get_pid (inferior_ptid);
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if (regno == -1 || !is_fp)
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{
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mips64_elf_gregset_t regs;
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if (ptrace (PTRACE_GETREGS, tid, 0L, (PTRACE_TYPE_ARG3) ®s) == -1)
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perror_with_name (_("Couldn't get registers"));
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mips64_fill_gregset (®s, regno);
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if (ptrace (PTRACE_SETREGS, tid, 0L, (PTRACE_TYPE_ARG3) ®s) == -1)
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perror_with_name (_("Couldn't set registers"));
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}
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if (regno == -1 || is_fp)
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{
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mips64_elf_fpregset_t fp_regs;
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if (ptrace (PTRACE_GETFPREGS, tid, 0L,
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(PTRACE_TYPE_ARG3) &fp_regs) == -1)
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perror_with_name (_("Couldn't get FP registers"));
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mips64_fill_fpregset (&fp_regs, regno);
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if (ptrace (PTRACE_SETFPREGS, tid, 0L,
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(PTRACE_TYPE_ARG3) &fp_regs) == -1)
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perror_with_name (_("Couldn't set FP registers"));
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}
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}
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/* Fetch REGNO (or all registers if REGNO == -1) from the target
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using any working method. */
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static void
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mips64_linux_fetch_registers (int regnum)
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{
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/* Unless we already know that PTRACE_GETREGS does not work, try it. */
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if (have_ptrace_regsets)
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mips64_linux_regsets_fetch_registers (regnum);
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/* If we know, or just found out, that PTRACE_GETREGS does not work, fall
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back to PTRACE_PEEKUSER. */
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if (!have_ptrace_regsets)
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super_fetch_registers (regnum);
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}
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/* Store REGNO (or all registers if REGNO == -1) to the target
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using any working method. */
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static void
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mips64_linux_store_registers (int regnum)
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{
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/* Unless we already know that PTRACE_GETREGS does not work, try it. */
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if (have_ptrace_regsets)
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mips64_linux_regsets_store_registers (regnum);
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/* If we know, or just found out, that PTRACE_GETREGS does not work, fall
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back to PTRACE_PEEKUSER. */
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if (!have_ptrace_regsets)
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super_store_registers (regnum);
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}
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void _initialize_mips_linux_nat (void);
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void
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_initialize_mips_linux_nat (void)
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{
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add_target (linux_target ());
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struct target_ops *t = linux_target ();
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super_fetch_registers = t->to_fetch_registers;
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super_store_registers = t->to_store_registers;
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t->to_fetch_registers = mips64_linux_fetch_registers;
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t->to_store_registers = mips64_linux_store_registers;
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add_target (t);
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}
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@ -33,37 +33,7 @@
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#include "trad-frame.h"
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#include "tramp-frame.h"
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#include "floatformat.h"
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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 elf_greg_t[4];
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef unsigned char elf_fpreg_t[8];
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typedef elf_fpreg_t 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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#include "mips-linux-tdep.h"
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/* Figure out where the longjmp will land.
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We expect the first arg to be a pointer to the jmp_buf structure
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@ -99,7 +69,7 @@ mips_linux_get_longjmp_target (CORE_ADDR *pc)
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static void
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supply_32bit_reg (int regnum, const void *addr)
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{
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char buf[MAX_REGISTER_SIZE];
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gdb_byte buf[MAX_REGISTER_SIZE];
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store_signed_integer (buf, register_size (current_gdbarch, regnum),
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extract_signed_integer (addr, 4));
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regcache_raw_supply (current_regcache, regnum, buf);
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@ -107,11 +77,11 @@ supply_32bit_reg (int regnum, const void *addr)
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/* Unpack an elf_gregset_t into GDB's register cache. */
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static void
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mips_supply_gregset (elf_gregset_t *gregsetp)
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void
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mips_supply_gregset (mips_elf_gregset_t *gregsetp)
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{
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int regi;
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elf_greg_t *regp = *gregsetp;
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mips_elf_greg_t *regp = *gregsetp;
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char zerobuf[MAX_REGISTER_SIZE];
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memset (zerobuf, 0, MAX_REGISTER_SIZE);
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@ -142,16 +112,16 @@ mips_supply_gregset (elf_gregset_t *gregsetp)
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/* Pack our registers (or one register) into an elf_gregset_t. */
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static void
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mips_fill_gregset (elf_gregset_t *gregsetp, int regno)
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void
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mips_fill_gregset (mips_elf_gregset_t *gregsetp, int regno)
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{
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int regaddr, regi;
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elf_greg_t *regp = *gregsetp;
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mips_elf_greg_t *regp = *gregsetp;
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void *dst;
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if (regno == -1)
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{
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memset (regp, 0, sizeof (elf_gregset_t));
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memset (regp, 0, sizeof (mips_elf_gregset_t));
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for (regi = 0; regi < 32; regi++)
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mips_fill_gregset (gregsetp, regi);
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mips_fill_gregset (gregsetp, mips_regnum (current_gdbarch)->lo);
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@ -195,8 +165,8 @@ mips_fill_gregset (elf_gregset_t *gregsetp, int regno)
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/* Likewise, unpack an elf_fpregset_t. */
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|
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static void
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mips_supply_fpregset (elf_fpregset_t *fpregsetp)
|
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void
|
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mips_supply_fpregset (mips_elf_fpregset_t *fpregsetp)
|
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{
|
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int regi;
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char zerobuf[MAX_REGISTER_SIZE];
|
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|
|
@ -220,8 +190,8 @@ mips_supply_fpregset (elf_fpregset_t *fpregsetp)
|
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/* Likewise, pack one or all floating point registers into an
|
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elf_fpregset_t. */
|
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|
||||
static void
|
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mips_fill_fpregset (elf_fpregset_t *fpregsetp, int regno)
|
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void
|
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mips_fill_fpregset (mips_elf_fpregset_t *fpregsetp, int regno)
|
||||
{
|
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char *from, *to;
|
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|
||||
|
|
@ -284,37 +254,6 @@ mips_linux_register_addr (int regno, CORE_ADDR blockend)
|
|||
|
||||
/* Support for 64-bit ABIs. */
|
||||
|
||||
/* 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
|
||||
|
||||
/* Figure out where the longjmp will land.
|
||||
We expect the first arg to be a pointer to the jmp_buf structure
|
||||
from which we extract the pc (MIPS_LINUX_JB_PC) that we will land
|
||||
|
|
@ -343,39 +282,49 @@ mips64_linux_get_longjmp_target (CORE_ADDR *pc)
|
|||
return 1;
|
||||
}
|
||||
|
||||
/* Unpack an elf_gregset_t into GDB's register cache. */
|
||||
/* Register set support functions. These operate on standard 64-bit
|
||||
regsets, but work whether the target is 32-bit or 64-bit. A 32-bit
|
||||
target will still use the 64-bit format for PTRACE_GETREGS. */
|
||||
|
||||
static void
|
||||
/* Supply a 64-bit register. */
|
||||
|
||||
void
|
||||
supply_64bit_reg (int regnum, const gdb_byte *buf)
|
||||
{
|
||||
if (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG
|
||||
&& register_size (current_gdbarch, regnum) == 4)
|
||||
regcache_raw_supply (current_regcache, regnum, buf + 4);
|
||||
else
|
||||
regcache_raw_supply (current_regcache, regnum, buf);
|
||||
}
|
||||
|
||||
/* Unpack a 64-bit elf_gregset_t into GDB's register cache. */
|
||||
|
||||
void
|
||||
mips64_supply_gregset (mips64_elf_gregset_t *gregsetp)
|
||||
{
|
||||
int regi;
|
||||
mips64_elf_greg_t *regp = *gregsetp;
|
||||
char zerobuf[MAX_REGISTER_SIZE];
|
||||
gdb_byte zerobuf[MAX_REGISTER_SIZE];
|
||||
|
||||
memset (zerobuf, 0, MAX_REGISTER_SIZE);
|
||||
|
||||
for (regi = MIPS64_EF_REG0; regi <= MIPS64_EF_REG31; regi++)
|
||||
regcache_raw_supply (current_regcache, (regi - MIPS64_EF_REG0),
|
||||
(char *)(regp + regi));
|
||||
supply_64bit_reg (regi - MIPS64_EF_REG0, (gdb_byte *)(regp + regi));
|
||||
|
||||
regcache_raw_supply (current_regcache,
|
||||
mips_regnum (current_gdbarch)->lo,
|
||||
(char *) (regp + MIPS64_EF_LO));
|
||||
regcache_raw_supply (current_regcache,
|
||||
mips_regnum (current_gdbarch)->hi,
|
||||
(char *) (regp + MIPS64_EF_HI));
|
||||
supply_64bit_reg (mips_regnum (current_gdbarch)->lo,
|
||||
(gdb_byte *) (regp + MIPS64_EF_LO));
|
||||
supply_64bit_reg (mips_regnum (current_gdbarch)->hi,
|
||||
(gdb_byte *) (regp + MIPS64_EF_HI));
|
||||
|
||||
regcache_raw_supply (current_regcache,
|
||||
mips_regnum (current_gdbarch)->pc,
|
||||
(char *) (regp + MIPS64_EF_CP0_EPC));
|
||||
regcache_raw_supply (current_regcache,
|
||||
mips_regnum (current_gdbarch)->badvaddr,
|
||||
(char *) (regp + MIPS64_EF_CP0_BADVADDR));
|
||||
regcache_raw_supply (current_regcache, MIPS_PS_REGNUM,
|
||||
(char *) (regp + MIPS64_EF_CP0_STATUS));
|
||||
regcache_raw_supply (current_regcache,
|
||||
mips_regnum (current_gdbarch)->cause,
|
||||
(char *) (regp + MIPS64_EF_CP0_CAUSE));
|
||||
supply_64bit_reg (mips_regnum (current_gdbarch)->pc,
|
||||
(gdb_byte *) (regp + MIPS64_EF_CP0_EPC));
|
||||
supply_64bit_reg (mips_regnum (current_gdbarch)->badvaddr,
|
||||
(gdb_byte *) (regp + MIPS64_EF_CP0_BADVADDR));
|
||||
supply_64bit_reg (MIPS_PS_REGNUM,
|
||||
(gdb_byte *) (regp + MIPS64_EF_CP0_STATUS));
|
||||
supply_64bit_reg (mips_regnum (current_gdbarch)->cause,
|
||||
(gdb_byte *) (regp + MIPS64_EF_CP0_CAUSE));
|
||||
|
||||
/* Fill inaccessible registers with zero. */
|
||||
regcache_raw_supply (current_regcache, MIPS_UNUSED_REGNUM, zerobuf);
|
||||
|
|
@ -385,9 +334,9 @@ mips64_supply_gregset (mips64_elf_gregset_t *gregsetp)
|
|||
regcache_raw_supply (current_regcache, regi, zerobuf);
|
||||
}
|
||||
|
||||
/* Pack our registers (or one register) into an elf_gregset_t. */
|
||||
/* Pack our registers (or one register) into a 64-bit elf_gregset_t. */
|
||||
|
||||
static void
|
||||
void
|
||||
mips64_fill_gregset (mips64_elf_gregset_t *gregsetp, int regno)
|
||||
{
|
||||
int regaddr, regi;
|
||||
|
|
@ -412,13 +361,8 @@ mips64_fill_gregset (mips64_elf_gregset_t *gregsetp, int regno)
|
|||
}
|
||||
|
||||
if (regno < 32)
|
||||
{
|
||||
dst = regp + regno + MIPS64_EF_REG0;
|
||||
regcache_raw_collect (current_regcache, regno, dst);
|
||||
return;
|
||||
}
|
||||
|
||||
if (regno == mips_regnum (current_gdbarch)->lo)
|
||||
regaddr = regno + MIPS64_EF_REG0;
|
||||
else if (regno == mips_regnum (current_gdbarch)->lo)
|
||||
regaddr = MIPS64_EF_LO;
|
||||
else if (regno == mips_regnum (current_gdbarch)->hi)
|
||||
regaddr = MIPS64_EF_HI;
|
||||
|
|
@ -435,52 +379,97 @@ mips64_fill_gregset (mips64_elf_gregset_t *gregsetp, int regno)
|
|||
|
||||
if (regaddr != -1)
|
||||
{
|
||||
gdb_byte buf[MAX_REGISTER_SIZE];
|
||||
LONGEST val;
|
||||
|
||||
regcache_raw_collect (current_regcache, regno, buf);
|
||||
val = extract_signed_integer (buf,
|
||||
register_size (current_gdbarch, regno));
|
||||
dst = regp + regaddr;
|
||||
regcache_raw_collect (current_regcache, regno, dst);
|
||||
store_signed_integer (dst, 8, val);
|
||||
}
|
||||
}
|
||||
|
||||
/* Likewise, unpack an elf_fpregset_t. */
|
||||
|
||||
static void
|
||||
void
|
||||
mips64_supply_fpregset (mips64_elf_fpregset_t *fpregsetp)
|
||||
{
|
||||
int regi;
|
||||
char zerobuf[MAX_REGISTER_SIZE];
|
||||
|
||||
memset (zerobuf, 0, MAX_REGISTER_SIZE);
|
||||
/* See mips_linux_o32_sigframe_init for a description of the
|
||||
peculiar FP register layout. */
|
||||
if (register_size (current_gdbarch, FP0_REGNUM) == 4)
|
||||
for (regi = 0; regi < 32; regi++)
|
||||
{
|
||||
gdb_byte *reg_ptr = (gdb_byte *) (*fpregsetp + (regi & ~1));
|
||||
if ((TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) != (regi & 1))
|
||||
reg_ptr += 4;
|
||||
regcache_raw_supply (current_regcache, FP0_REGNUM + regi, reg_ptr);
|
||||
}
|
||||
else
|
||||
for (regi = 0; regi < 32; regi++)
|
||||
regcache_raw_supply (current_regcache, FP0_REGNUM + regi,
|
||||
(char *)(*fpregsetp + regi));
|
||||
|
||||
for (regi = 0; regi < 32; regi++)
|
||||
regcache_raw_supply (current_regcache, FP0_REGNUM + regi,
|
||||
(char *)(*fpregsetp + regi));
|
||||
supply_32bit_reg (mips_regnum (current_gdbarch)->fp_control_status,
|
||||
(gdb_byte *)(*fpregsetp + 32));
|
||||
|
||||
regcache_raw_supply (current_regcache,
|
||||
mips_regnum (current_gdbarch)->fp_control_status,
|
||||
(char *)(*fpregsetp + 32));
|
||||
|
||||
/* FIXME: how can we supply FCRIR? The ABI doesn't tell us. */
|
||||
regcache_raw_supply (current_regcache,
|
||||
mips_regnum (current_gdbarch)->fp_implementation_revision,
|
||||
zerobuf);
|
||||
/* The ABI doesn't tell us how to supply FCRIR, and core dumps don't
|
||||
include it - but the result of PTRACE_GETFPREGS does. The best we
|
||||
can do is to assume that its value is present. */
|
||||
supply_32bit_reg (mips_regnum (current_gdbarch)->fp_implementation_revision,
|
||||
(gdb_byte *)(*fpregsetp + 32) + 4);
|
||||
}
|
||||
|
||||
/* Likewise, pack one or all floating point registers into an
|
||||
elf_fpregset_t. */
|
||||
|
||||
static void
|
||||
void
|
||||
mips64_fill_fpregset (mips64_elf_fpregset_t *fpregsetp, int regno)
|
||||
{
|
||||
char *from, *to;
|
||||
gdb_byte *to;
|
||||
|
||||
if ((regno >= FP0_REGNUM) && (regno < FP0_REGNUM + 32))
|
||||
{
|
||||
to = (char *) (*fpregsetp + regno - FP0_REGNUM);
|
||||
regcache_raw_collect (current_regcache, regno, to);
|
||||
/* See mips_linux_o32_sigframe_init for a description of the
|
||||
peculiar FP register layout. */
|
||||
if (register_size (current_gdbarch, regno) == 4)
|
||||
{
|
||||
int regi = regno - FP0_REGNUM;
|
||||
|
||||
to = (gdb_byte *) (*fpregsetp + (regi & ~1));
|
||||
if ((TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) != (regi & 1))
|
||||
to += 4;
|
||||
regcache_raw_collect (current_regcache, regno, to);
|
||||
}
|
||||
else
|
||||
{
|
||||
to = (gdb_byte *) (*fpregsetp + regno - FP0_REGNUM);
|
||||
regcache_raw_collect (current_regcache, regno, to);
|
||||
}
|
||||
}
|
||||
else if (regno == mips_regnum (current_gdbarch)->fp_control_status)
|
||||
{
|
||||
to = (char *) (*fpregsetp + 32);
|
||||
regcache_raw_collect (current_regcache, regno, to);
|
||||
gdb_byte buf[MAX_REGISTER_SIZE];
|
||||
LONGEST val;
|
||||
|
||||
regcache_raw_collect (current_regcache, regno, buf);
|
||||
val = extract_signed_integer (buf,
|
||||
register_size (current_gdbarch, regno));
|
||||
to = (gdb_byte *) (*fpregsetp + 32);
|
||||
store_signed_integer (to, 4, val);
|
||||
}
|
||||
else if (regno == mips_regnum (current_gdbarch)->fp_implementation_revision)
|
||||
{
|
||||
gdb_byte buf[MAX_REGISTER_SIZE];
|
||||
LONGEST val;
|
||||
|
||||
regcache_raw_collect (current_regcache, regno, buf);
|
||||
val = extract_signed_integer (buf,
|
||||
register_size (current_gdbarch, regno));
|
||||
to = (gdb_byte *) (*fpregsetp + 32) + 4;
|
||||
store_signed_integer (to, 4, val);
|
||||
}
|
||||
else if (regno == -1)
|
||||
{
|
||||
|
|
@ -488,8 +477,10 @@ mips64_fill_fpregset (mips64_elf_fpregset_t *fpregsetp, int regno)
|
|||
|
||||
for (regi = 0; regi < 32; regi++)
|
||||
mips64_fill_fpregset (fpregsetp, FP0_REGNUM + regi);
|
||||
mips64_fill_fpregset(fpregsetp,
|
||||
mips_regnum (current_gdbarch)->fp_control_status);
|
||||
mips64_fill_fpregset (fpregsetp,
|
||||
mips_regnum (current_gdbarch)->fp_control_status);
|
||||
mips64_fill_fpregset (fpregsetp, (mips_regnum (current_gdbarch)
|
||||
->fp_implementation_revision));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -537,8 +528,8 @@ static void
|
|||
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
|
||||
int which, CORE_ADDR reg_addr)
|
||||
{
|
||||
elf_gregset_t gregset;
|
||||
elf_fpregset_t fpregset;
|
||||
mips_elf_gregset_t gregset;
|
||||
mips_elf_fpregset_t fpregset;
|
||||
mips64_elf_gregset_t gregset64;
|
||||
mips64_elf_fpregset_t fpregset64;
|
||||
|
||||
|
|
@ -1088,7 +1079,7 @@ mips_linux_n32n64_sigframe_init (const struct tramp_frame *self,
|
|||
/* Wrapper functions. These are only used by libthread_db. */
|
||||
|
||||
void
|
||||
supply_gregset (elf_gregset_t *gregsetp)
|
||||
supply_gregset (mips_elf_gregset_t *gregsetp)
|
||||
{
|
||||
if (mips_isa_regsize (current_gdbarch) == 4)
|
||||
mips_supply_gregset (gregsetp);
|
||||
|
|
@ -1097,7 +1088,7 @@ supply_gregset (elf_gregset_t *gregsetp)
|
|||
}
|
||||
|
||||
void
|
||||
fill_gregset (elf_gregset_t *gregsetp, int regno)
|
||||
fill_gregset (mips_elf_gregset_t *gregsetp, int regno)
|
||||
{
|
||||
if (mips_isa_regsize (current_gdbarch) == 4)
|
||||
mips_fill_gregset (gregsetp, regno);
|
||||
|
|
@ -1108,7 +1099,7 @@ fill_gregset (elf_gregset_t *gregsetp, int regno)
|
|||
/* Likewise, unpack an elf_fpregset_t. */
|
||||
|
||||
void
|
||||
supply_fpregset (elf_fpregset_t *fpregsetp)
|
||||
supply_fpregset (mips_elf_fpregset_t *fpregsetp)
|
||||
{
|
||||
if (mips_isa_regsize (current_gdbarch) == 4)
|
||||
mips_supply_fpregset (fpregsetp);
|
||||
|
|
@ -1120,7 +1111,7 @@ supply_fpregset (elf_fpregset_t *fpregsetp)
|
|||
elf_fpregset_t. */
|
||||
|
||||
void
|
||||
fill_fpregset (elf_fpregset_t *fpregsetp, int regno)
|
||||
fill_fpregset (mips_elf_fpregset_t *fpregsetp, int regno)
|
||||
{
|
||||
if (mips_isa_regsize (current_gdbarch) == 4)
|
||||
mips_fill_fpregset (fpregsetp, regno);
|
||||
|
|
|
|||
|
|
@ -0,0 +1,94 @@
|
|||
/* Target-dependent code for GNU/Linux on MIPS processors.
|
||||
|
||||
Copyright 2006 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 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. */
|
||||
|
||||
/* 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 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 (mips_elf_gregset_t *);
|
||||
void mips_fill_gregset (mips_elf_gregset_t *, int);
|
||||
void mips_supply_fpregset (mips_elf_fpregset_t *);
|
||||
void mips_fill_fpregset (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 (mips64_elf_gregset_t *);
|
||||
void mips64_fill_gregset (mips64_elf_gregset_t *, int);
|
||||
void mips64_supply_fpregset (mips64_elf_fpregset_t *);
|
||||
void mips64_fill_fpregset (mips64_elf_fpregset_t *, int);
|
||||
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Reference in New Issue