diff options
Diffstat (limited to 'gdb/mips-tdep.c')
| -rw-r--r-- | gdb/mips-tdep.c | 360 |
1 files changed, 178 insertions, 182 deletions
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index 05f27a5..ae747ff 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -8084,185 +8084,6 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) int dspacc; int dspctl; - /* Fill in the OS dependent register numbers and names. */ - if (info.osabi == GDB_OSABI_LINUX) - { - mips_regnum.fp0 = 38; - mips_regnum.pc = 37; - mips_regnum.cause = 36; - mips_regnum.badvaddr = 35; - mips_regnum.hi = 34; - mips_regnum.lo = 33; - mips_regnum.fp_control_status = 70; - mips_regnum.fp_implementation_revision = 71; - mips_regnum.dspacc = -1; - mips_regnum.dspctl = -1; - dspacc = 72; - dspctl = 78; - num_regs = 90; - reg_names = mips_linux_reg_names; - } - else - { - mips_regnum.lo = MIPS_EMBED_LO_REGNUM; - mips_regnum.hi = MIPS_EMBED_HI_REGNUM; - mips_regnum.badvaddr = MIPS_EMBED_BADVADDR_REGNUM; - mips_regnum.cause = MIPS_EMBED_CAUSE_REGNUM; - mips_regnum.pc = MIPS_EMBED_PC_REGNUM; - mips_regnum.fp0 = MIPS_EMBED_FP0_REGNUM; - mips_regnum.fp_control_status = 70; - mips_regnum.fp_implementation_revision = 71; - mips_regnum.dspacc = dspacc = -1; - mips_regnum.dspctl = dspctl = -1; - num_regs = MIPS_LAST_EMBED_REGNUM + 1; - if (info.bfd_arch_info != NULL - && info.bfd_arch_info->mach == bfd_mach_mips3900) - reg_names = mips_tx39_reg_names; - else - reg_names = mips_generic_reg_names; - } - - /* Check any target description for validity. */ - if (tdesc_has_registers (info.target_desc)) - { - static const char *const mips_gprs[] = { - "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", - "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", - "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", - "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31" - }; - static const char *const mips_fprs[] = { - "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", - "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", - "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", - "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", - }; - - const struct tdesc_feature *feature; - int valid_p; - - feature = tdesc_find_feature (info.target_desc, - "org.gnu.gdb.mips.cpu"); - if (feature == NULL) - return NULL; - - tdesc_data = tdesc_data_alloc (); - - valid_p = 1; - for (i = MIPS_ZERO_REGNUM; i <= MIPS_RA_REGNUM; i++) - valid_p &= tdesc_numbered_register (feature, tdesc_data, i, - mips_gprs[i]); - - - valid_p &= tdesc_numbered_register (feature, tdesc_data, - mips_regnum.lo, "lo"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - mips_regnum.hi, "hi"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - mips_regnum.pc, "pc"); - - if (!valid_p) - { - tdesc_data_cleanup (tdesc_data); - return NULL; - } - - feature = tdesc_find_feature (info.target_desc, - "org.gnu.gdb.mips.cp0"); - if (feature == NULL) - { - tdesc_data_cleanup (tdesc_data); - return NULL; - } - - valid_p = 1; - valid_p &= tdesc_numbered_register (feature, tdesc_data, - mips_regnum.badvaddr, "badvaddr"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - MIPS_PS_REGNUM, "status"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - mips_regnum.cause, "cause"); - - if (!valid_p) - { - tdesc_data_cleanup (tdesc_data); - return NULL; - } - - /* FIXME drow/2007-05-17: The FPU should be optional. The MIPS - backend is not prepared for that, though. */ - feature = tdesc_find_feature (info.target_desc, - "org.gnu.gdb.mips.fpu"); - if (feature == NULL) - { - tdesc_data_cleanup (tdesc_data); - return NULL; - } - - valid_p = 1; - for (i = 0; i < 32; i++) - valid_p &= tdesc_numbered_register (feature, tdesc_data, - i + mips_regnum.fp0, mips_fprs[i]); - - valid_p &= tdesc_numbered_register (feature, tdesc_data, - mips_regnum.fp_control_status, - "fcsr"); - valid_p - &= tdesc_numbered_register (feature, tdesc_data, - mips_regnum.fp_implementation_revision, - "fir"); - - if (!valid_p) - { - tdesc_data_cleanup (tdesc_data); - return NULL; - } - - num_regs = mips_regnum.fp_implementation_revision + 1; - - if (dspacc >= 0) - { - feature = tdesc_find_feature (info.target_desc, - "org.gnu.gdb.mips.dsp"); - /* The DSP registers are optional; it's OK if they are absent. */ - if (feature != NULL) - { - i = 0; - valid_p = 1; - valid_p &= tdesc_numbered_register (feature, tdesc_data, - dspacc + i++, "hi1"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - dspacc + i++, "lo1"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - dspacc + i++, "hi2"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - dspacc + i++, "lo2"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - dspacc + i++, "hi3"); - valid_p &= tdesc_numbered_register (feature, tdesc_data, - dspacc + i++, "lo3"); - - valid_p &= tdesc_numbered_register (feature, tdesc_data, - dspctl, "dspctl"); - - if (!valid_p) - { - tdesc_data_cleanup (tdesc_data); - return NULL; - } - - mips_regnum.dspacc = dspacc; - mips_regnum.dspctl = dspctl; - - num_regs = mips_regnum.dspctl + 1; - } - } - - /* It would be nice to detect an attempt to use a 64-bit ABI - when only 32-bit registers are provided. */ - reg_names = NULL; - } - /* First of all, extract the elf_flags, if available. */ if (info.abfd && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour) elf_flags = elf_elfheader (info.abfd)->e_flags; @@ -8442,10 +8263,185 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) && tdesc_property (info.target_desc, PROPERTY_GP32) != NULL && mips_abi != MIPS_ABI_EABI32 && mips_abi != MIPS_ABI_O32) + return NULL; + + /* Fill in the OS dependent register numbers and names. */ + if (info.osabi == GDB_OSABI_LINUX) { - if (tdesc_data != NULL) - tdesc_data_cleanup (tdesc_data); - return NULL; + mips_regnum.fp0 = 38; + mips_regnum.pc = 37; + mips_regnum.cause = 36; + mips_regnum.badvaddr = 35; + mips_regnum.hi = 34; + mips_regnum.lo = 33; + mips_regnum.fp_control_status = 70; + mips_regnum.fp_implementation_revision = 71; + mips_regnum.dspacc = -1; + mips_regnum.dspctl = -1; + dspacc = 72; + dspctl = 78; + num_regs = 90; + reg_names = mips_linux_reg_names; + } + else + { + mips_regnum.lo = MIPS_EMBED_LO_REGNUM; + mips_regnum.hi = MIPS_EMBED_HI_REGNUM; + mips_regnum.badvaddr = MIPS_EMBED_BADVADDR_REGNUM; + mips_regnum.cause = MIPS_EMBED_CAUSE_REGNUM; + mips_regnum.pc = MIPS_EMBED_PC_REGNUM; + mips_regnum.fp0 = MIPS_EMBED_FP0_REGNUM; + mips_regnum.fp_control_status = 70; + mips_regnum.fp_implementation_revision = 71; + mips_regnum.dspacc = dspacc = -1; + mips_regnum.dspctl = dspctl = -1; + num_regs = MIPS_LAST_EMBED_REGNUM + 1; + if (info.bfd_arch_info != NULL + && info.bfd_arch_info->mach == bfd_mach_mips3900) + reg_names = mips_tx39_reg_names; + else + reg_names = mips_generic_reg_names; + } + + /* Check any target description for validity. */ + if (tdesc_has_registers (info.target_desc)) + { + static const char *const mips_gprs[] = { + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31" + }; + static const char *const mips_fprs[] = { + "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", + "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", + "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", + "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", + }; + + const struct tdesc_feature *feature; + int valid_p; + + feature = tdesc_find_feature (info.target_desc, + "org.gnu.gdb.mips.cpu"); + if (feature == NULL) + return NULL; + + tdesc_data = tdesc_data_alloc (); + + valid_p = 1; + for (i = MIPS_ZERO_REGNUM; i <= MIPS_RA_REGNUM; i++) + valid_p &= tdesc_numbered_register (feature, tdesc_data, i, + mips_gprs[i]); + + + valid_p &= tdesc_numbered_register (feature, tdesc_data, + mips_regnum.lo, "lo"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + mips_regnum.hi, "hi"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + mips_regnum.pc, "pc"); + + if (!valid_p) + { + tdesc_data_cleanup (tdesc_data); + return NULL; + } + + feature = tdesc_find_feature (info.target_desc, + "org.gnu.gdb.mips.cp0"); + if (feature == NULL) + { + tdesc_data_cleanup (tdesc_data); + return NULL; + } + + valid_p = 1; + valid_p &= tdesc_numbered_register (feature, tdesc_data, + mips_regnum.badvaddr, "badvaddr"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + MIPS_PS_REGNUM, "status"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + mips_regnum.cause, "cause"); + + if (!valid_p) + { + tdesc_data_cleanup (tdesc_data); + return NULL; + } + + /* FIXME drow/2007-05-17: The FPU should be optional. The MIPS + backend is not prepared for that, though. */ + feature = tdesc_find_feature (info.target_desc, + "org.gnu.gdb.mips.fpu"); + if (feature == NULL) + { + tdesc_data_cleanup (tdesc_data); + return NULL; + } + + valid_p = 1; + for (i = 0; i < 32; i++) + valid_p &= tdesc_numbered_register (feature, tdesc_data, + i + mips_regnum.fp0, mips_fprs[i]); + + valid_p &= tdesc_numbered_register (feature, tdesc_data, + mips_regnum.fp_control_status, + "fcsr"); + valid_p + &= tdesc_numbered_register (feature, tdesc_data, + mips_regnum.fp_implementation_revision, + "fir"); + + if (!valid_p) + { + tdesc_data_cleanup (tdesc_data); + return NULL; + } + + num_regs = mips_regnum.fp_implementation_revision + 1; + + if (dspacc >= 0) + { + feature = tdesc_find_feature (info.target_desc, + "org.gnu.gdb.mips.dsp"); + /* The DSP registers are optional; it's OK if they are absent. */ + if (feature != NULL) + { + i = 0; + valid_p = 1; + valid_p &= tdesc_numbered_register (feature, tdesc_data, + dspacc + i++, "hi1"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + dspacc + i++, "lo1"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + dspacc + i++, "hi2"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + dspacc + i++, "lo2"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + dspacc + i++, "hi3"); + valid_p &= tdesc_numbered_register (feature, tdesc_data, + dspacc + i++, "lo3"); + + valid_p &= tdesc_numbered_register (feature, tdesc_data, + dspctl, "dspctl"); + + if (!valid_p) + { + tdesc_data_cleanup (tdesc_data); + return NULL; + } + + mips_regnum.dspacc = dspacc; + mips_regnum.dspctl = dspctl; + + num_regs = mips_regnum.dspctl + 1; + } + } + + /* It would be nice to detect an attempt to use a 64-bit ABI + when only 32-bit registers are provided. */ + reg_names = NULL; } /* Try to find a pre-existing architecture. */ |