diff options
Diffstat (limited to 'gdb/mips-tdep.c')
| -rw-r--r-- | gdb/mips-tdep.c | 79 |
1 files changed, 54 insertions, 25 deletions
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index 8caf5e3..d4a3714 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -5119,25 +5119,43 @@ set_mipsfpu_command (char *args, int from_tty) static void set_mipsfpu_single_command (char *args, int from_tty) { + struct gdbarch_info info; + gdbarch_info_init (&info); mips_fpu_type = MIPS_FPU_SINGLE; mips_fpu_type_auto = 0; - gdbarch_tdep (current_gdbarch)->mips_fpu_type = MIPS_FPU_SINGLE; + /* FIXME: cagney/2003-11-15: Should be setting a field in "info" + instead of relying on globals. Doing that would let generic code + handle the search for this specific architecture. */ + if (!gdbarch_update_p (info)) + internal_error (__FILE__, __LINE__, "set mipsfpu failed"); } static void set_mipsfpu_double_command (char *args, int from_tty) { + struct gdbarch_info info; + gdbarch_info_init (&info); mips_fpu_type = MIPS_FPU_DOUBLE; mips_fpu_type_auto = 0; - gdbarch_tdep (current_gdbarch)->mips_fpu_type = MIPS_FPU_DOUBLE; + /* FIXME: cagney/2003-11-15: Should be setting a field in "info" + instead of relying on globals. Doing that would let generic code + handle the search for this specific architecture. */ + if (!gdbarch_update_p (info)) + internal_error (__FILE__, __LINE__, "set mipsfpu failed"); } static void set_mipsfpu_none_command (char *args, int from_tty) { + struct gdbarch_info info; + gdbarch_info_init (&info); mips_fpu_type = MIPS_FPU_NONE; mips_fpu_type_auto = 0; - gdbarch_tdep (current_gdbarch)->mips_fpu_type = MIPS_FPU_NONE; + /* FIXME: cagney/2003-11-15: Should be setting a field in "info" + instead of relying on globals. Doing that would let generic code + handle the search for this specific architecture. */ + if (!gdbarch_update_p (info)) + internal_error (__FILE__, __LINE__, "set mipsfpu failed"); } static void @@ -5665,6 +5683,7 @@ mips_gdbarch_init (struct gdbarch_info info, int elf_flags; enum mips_abi mips_abi, found_abi, wanted_abi; int num_regs; + enum mips_fpu_type fpu_type; /* First of all, extract the elf_flags, if available. */ if (info.abfd && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour) @@ -5764,6 +5783,34 @@ mips_gdbarch_init (struct gdbarch_info info, "mips_gdbarch_init: mips64_transfers_32bit_regs_p = %d\n", mips64_transfers_32bit_regs_p); + /* Determine the MIPS FPU type. */ + if (!mips_fpu_type_auto) + fpu_type = mips_fpu_type; + else if (info.bfd_arch_info != NULL + && info.bfd_arch_info->arch == bfd_arch_mips) + switch (info.bfd_arch_info->mach) + { + case bfd_mach_mips3900: + case bfd_mach_mips4100: + case bfd_mach_mips4111: + fpu_type = MIPS_FPU_NONE; + break; + case bfd_mach_mips4650: + fpu_type = MIPS_FPU_SINGLE; + break; + default: + fpu_type = MIPS_FPU_DOUBLE; + break; + } + else if (arches != NULL) + fpu_type = gdbarch_tdep (arches->gdbarch)->mips_fpu_type; + else + fpu_type = MIPS_FPU_DOUBLE; + if (gdbarch_debug) + fprintf_unfiltered (gdb_stdlog, + "mips_gdbarch_init: fpu_type = %d\n", + fpu_type); + /* try to find a pre-existing architecture */ for (arches = gdbarch_list_lookup_by_info (arches, &info); arches != NULL; @@ -5780,6 +5827,9 @@ mips_gdbarch_init (struct gdbarch_info info, if (gdbarch_tdep (arches->gdbarch)->mips64_transfers_32bit_regs_p != mips64_transfers_32bit_regs_p) continue; + /* Be pedantic about which FPU is selected. */ + if (gdbarch_tdep (arches->gdbarch)->mips_fpu_type != fpu_type) + continue; return arches->gdbarch; } @@ -5790,6 +5840,7 @@ mips_gdbarch_init (struct gdbarch_info info, tdep->mips64_transfers_32bit_regs_p = mips64_transfers_32bit_regs_p; tdep->found_abi = found_abi; tdep->mips_abi = mips_abi; + tdep->mips_fpu_type = fpu_type; /* Initially set everything according to the default ABI/ISA. */ set_gdbarch_short_bit (gdbarch, 16); @@ -5976,28 +6027,6 @@ mips_gdbarch_init (struct gdbarch_info info, the current gcc - it would make GDB treat these 64-bit programs as 32-bit programs by default. */ - /* enable/disable the MIPS FPU */ - if (!mips_fpu_type_auto) - tdep->mips_fpu_type = mips_fpu_type; - else if (info.bfd_arch_info != NULL - && info.bfd_arch_info->arch == bfd_arch_mips) - switch (info.bfd_arch_info->mach) - { - case bfd_mach_mips3900: - case bfd_mach_mips4100: - case bfd_mach_mips4111: - tdep->mips_fpu_type = MIPS_FPU_NONE; - break; - case bfd_mach_mips4650: - tdep->mips_fpu_type = MIPS_FPU_SINGLE; - break; - default: - tdep->mips_fpu_type = MIPS_FPU_DOUBLE; - break; - } - else - tdep->mips_fpu_type = MIPS_FPU_DOUBLE; - set_gdbarch_read_pc (gdbarch, mips_read_pc); set_gdbarch_write_pc (gdbarch, generic_target_write_pc); set_gdbarch_deprecated_target_read_fp (gdbarch, mips_read_sp); /* Draft FRAME base. */ |