diff options
Diffstat (limited to 'gdb/sparc-tdep.c')
| -rw-r--r-- | gdb/sparc-tdep.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c index 81cbce2..afbcf2e 100644 --- a/gdb/sparc-tdep.c +++ b/gdb/sparc-tdep.c @@ -33,6 +33,7 @@ #include "osabi.h" #include "regcache.h" #include "target.h" +#include "target-descriptions.h" #include "value.h" #include "sparc-tdep.h" @@ -304,6 +305,10 @@ sparc_structure_or_union_p (const struct type *type) #define SPARC32_CP0_REGISTERS \ "y", "psr", "wim", "tbr", "pc", "npc", "fsr", "csr" +static const char *sparc_core_register_names[] = { SPARC_CORE_REGISTERS }; +static const char *sparc32_fpu_register_names[] = { SPARC32_FPU_REGISTERS }; +static const char *sparc32_cp0_register_names[] = { SPARC32_CP0_REGISTERS }; + static const char *sparc32_register_names[] = { SPARC_CORE_REGISTERS, @@ -346,6 +351,9 @@ sparc32_pseudo_register_name (struct gdbarch *gdbarch, int regnum) static const char * sparc32_register_name (struct gdbarch *gdbarch, int regnum) { + if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) + return tdesc_register_name (gdbarch, regnum); + if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)) return sparc32_register_names[regnum]; @@ -431,6 +439,9 @@ sparc32_pseudo_register_type (struct gdbarch *gdbarch, int regnum) static struct type * sparc32_register_type (struct gdbarch *gdbarch, int regnum) { + if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) + return tdesc_register_type (gdbarch, regnum); + if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) return builtin_type (gdbarch)->builtin_float; @@ -1686,11 +1697,36 @@ sparc_iterate_over_regset_sections (struct gdbarch *gdbarch, } +static int +validate_tdesc_registers (const struct target_desc *tdesc, + struct tdesc_arch_data *tdesc_data, + const char *feature_name, + const char *register_names[], + unsigned int registers_num, + unsigned int reg_start) +{ + int valid_p = 1; + const struct tdesc_feature *feature; + + feature = tdesc_find_feature (tdesc, feature_name); + if (feature == NULL) + return 0; + + for (unsigned int i = 0; i < registers_num; i++) + valid_p &= tdesc_numbered_register (feature, tdesc_data, + reg_start + i, + register_names[i]); + + return valid_p; +} + static struct gdbarch * sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { struct gdbarch_tdep *tdep; + const struct target_desc *tdesc = info.target_desc; struct gdbarch *gdbarch; + int valid_p = 1; /* If there is already a candidate, use it. */ arches = gdbarch_list_lookup_by_info (arches, &info); @@ -1704,6 +1740,10 @@ sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) tdep->pc_regnum = SPARC32_PC_REGNUM; tdep->npc_regnum = SPARC32_NPC_REGNUM; tdep->step_trap = sparc_step_trap; + tdep->fpu_register_names = sparc32_fpu_register_names; + tdep->fpu_registers_num = ARRAY_SIZE (sparc32_fpu_register_names); + tdep->cp0_register_names = sparc32_cp0_register_names; + tdep->cp0_registers_num = ARRAY_SIZE (sparc32_cp0_register_names); set_gdbarch_long_double_bit (gdbarch, 128); set_gdbarch_long_double_format (gdbarch, floatformats_sparc_quad); @@ -1712,6 +1752,8 @@ sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_register_name (gdbarch, sparc32_register_name); set_gdbarch_register_type (gdbarch, sparc32_register_type); set_gdbarch_num_pseudo_regs (gdbarch, SPARC32_NUM_PSEUDO_REGS); + set_tdesc_pseudo_register_name (gdbarch, sparc32_pseudo_register_name); + set_tdesc_pseudo_register_type (gdbarch, sparc32_pseudo_register_type); set_gdbarch_pseudo_register_read (gdbarch, sparc32_pseudo_register_read); set_gdbarch_pseudo_register_write (gdbarch, sparc32_pseudo_register_write); @@ -1763,6 +1805,39 @@ sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) frame_unwind_append_unwinder (gdbarch, &sparc32_frame_unwind); + if (tdesc_has_registers (tdesc)) + { + struct tdesc_arch_data *tdesc_data = tdesc_data_alloc (); + + /* Validate that the descriptor provides the mandatory registers + and allocate their numbers. */ + valid_p &= validate_tdesc_registers (tdesc, tdesc_data, + "org.gnu.gdb.sparc.cpu", + sparc_core_register_names, + ARRAY_SIZE (sparc_core_register_names), + SPARC_G0_REGNUM); + valid_p &= validate_tdesc_registers (tdesc, tdesc_data, + "org.gnu.gdb.sparc.fpu", + tdep->fpu_register_names, + tdep->fpu_registers_num, + SPARC_F0_REGNUM); + valid_p &= validate_tdesc_registers (tdesc, tdesc_data, + "org.gnu.gdb.sparc.cp0", + tdep->cp0_register_names, + tdep->cp0_registers_num, + SPARC_F0_REGNUM + + tdep->fpu_registers_num); + if (!valid_p) + { + tdesc_data_cleanup (tdesc_data); + return NULL; + } + + /* Target description may have changed. */ + info.tdep_info = tdesc_data; + tdesc_use_registers (gdbarch, tdesc, tdesc_data); + } + /* If we have register sets, enable the generic core file support. */ if (tdep->gregset) set_gdbarch_iterate_over_regset_sections |