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Diffstat (limited to 'gdb/sparc-tdep.c')
-rw-r--r--gdb/sparc-tdep.c93
1 files changed, 65 insertions, 28 deletions
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 6461ca0..033cc81 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -27,12 +27,12 @@
#include "arch-utils.h"
#include "frame.h"
#include "inferior.h"
-#include "obstack.h"
#include "target.h"
#include "value.h"
#include "bfd.h"
#include "gdb_string.h"
#include "regcache.h"
+#include "osabi.h"
#ifdef USE_PROC_FS
#include <sys/procfs.h>
@@ -111,6 +111,8 @@ struct gdbarch_tdep
int reg_save_offset;
int call_dummy_call_offset;
int print_insn_mach;
+
+ enum gdb_osabi osabi;
};
/* Now make GDB_TARGET_IS_SPARC64 a runtime test. */
@@ -2272,12 +2274,13 @@ sparc_target_architecture_hook (const bfd_arch_info_type *ap)
static struct gdbarch * sparc_gdbarch_init (struct gdbarch_info info,
struct gdbarch_list *arches);
+static void sparc_dump_tdep (struct gdbarch *, struct ui_file *);
void
_initialize_sparc_tdep (void)
{
/* Hook us into the gdbarch mechanism. */
- register_gdbarch_init (bfd_arch_sparc, sparc_gdbarch_init);
+ gdbarch_register (bfd_arch_sparc, sparc_gdbarch_init, sparc_dump_tdep);
tm_print_insn = gdb_print_insn_sparc;
tm_print_insn_info.mach = TM_PRINT_INSN_MACH; /* Selects sparc/sparclite */
@@ -2547,7 +2550,7 @@ sparc_print_extra_frame_info (struct frame_info *fi)
/* MULTI_ARCH support */
-static char *
+static const char *
sparc32_register_name (int regno)
{
static char *register_names[] =
@@ -2571,7 +2574,7 @@ sparc32_register_name (int regno)
return register_names[regno];
}
-static char *
+static const char *
sparc64_register_name (int regno)
{
static char *register_names[] =
@@ -2603,7 +2606,7 @@ sparc64_register_name (int regno)
return register_names[regno];
}
-static char *
+static const char *
sparclite_register_name (int regno)
{
static char *register_names[] =
@@ -2628,7 +2631,7 @@ sparclite_register_name (int regno)
return register_names[regno];
}
-static char *
+static const char *
sparclet_register_name (int regno)
{
static char *register_names[] =
@@ -2930,6 +2933,7 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
struct gdbarch_tdep *tdep;
+ enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
static LONGEST call_dummy_32[] =
{ 0xbc100001, 0x9de38000, 0xbc100002, 0xbe100003,
@@ -2953,10 +2957,29 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
};
static LONGEST call_dummy_nil[] = {0};
+ /* Try to determine the OS ABI of the object we are loading. */
+
+ if (info.abfd != NULL)
+ {
+ osabi = gdbarch_lookup_osabi (info.abfd);
+ if (osabi == GDB_OSABI_UNKNOWN)
+ {
+ /* If it's an ELF file, assume it's Solaris. */
+ if (bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
+ osabi = GDB_OSABI_SOLARIS;
+ }
+ }
+
/* First see if there is already a gdbarch that can satisfy the request. */
- arches = gdbarch_list_lookup_by_info (arches, &info);
- if (arches != NULL)
- return arches->gdbarch;
+ for (arches = gdbarch_list_lookup_by_info (arches, &info);
+ arches != NULL;
+ arches = gdbarch_list_lookup_by_info (arches->next, &info))
+ {
+ /* Make sure the ABI selection matches. */
+ tdep = gdbarch_tdep (arches->gdbarch);
+ if (tdep && tdep->osabi == osabi)
+ return arches->gdbarch;
+ }
/* None found: is the request for a sparc architecture? */
if (info.bfd_arch_info->arch != bfd_arch_sparc)
@@ -2966,6 +2989,8 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
gdbarch = gdbarch_alloc (&info, tdep);
+ tdep->osabi = osabi;
+
/* First set settings that are common for all sparc architectures. */
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
set_gdbarch_breakpoint_from_pc (gdbarch, memory_breakpoint_from_pc);
@@ -2976,8 +3001,7 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 1);
set_gdbarch_decr_pc_after_break (gdbarch, 0);
set_gdbarch_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
- set_gdbarch_extract_struct_value_address (gdbarch,
- sparc_extract_struct_value_address);
+ set_gdbarch_deprecated_extract_struct_value_address (gdbarch, sparc_extract_struct_value_address);
set_gdbarch_fix_call_dummy (gdbarch, sparc_gdbarch_fix_call_dummy);
set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_fp_regnum (gdbarch, SPARC_FP_REGNUM);
@@ -3191,96 +3215,109 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
switch (info.bfd_arch_info->mach)
{
case bfd_mach_sparc:
- set_gdbarch_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 72);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparc32_register_name);
- set_gdbarch_store_return_value (gdbarch, sparc_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
tdep->fp_register_bytes = 32 * 4;
tdep->print_insn_mach = bfd_mach_sparc;
break;
case bfd_mach_sparc_sparclet:
- set_gdbarch_extract_return_value (gdbarch,
- sparclet_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparclet_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 32 + 32 + 8 + 8 + 8);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparclet_register_name);
- set_gdbarch_store_return_value (gdbarch, sparclet_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparclet_store_return_value);
tdep->has_fpu = 0; /* (all but sparclet and sparclite) */
tdep->fp_register_bytes = 0;
tdep->print_insn_mach = bfd_mach_sparc_sparclet;
break;
case bfd_mach_sparc_sparclite:
- set_gdbarch_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 80);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparclite_register_name);
- set_gdbarch_store_return_value (gdbarch, sparc_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 0; /* (all but sparclet and sparclite) */
tdep->fp_register_bytes = 0;
tdep->print_insn_mach = bfd_mach_sparc_sparclite;
break;
case bfd_mach_sparc_v8plus:
- set_gdbarch_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 72);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparc32_register_name);
- set_gdbarch_store_return_value (gdbarch, sparc_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->print_insn_mach = bfd_mach_sparc;
tdep->fp_register_bytes = 32 * 4;
tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
break;
case bfd_mach_sparc_v8plusa:
- set_gdbarch_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 72);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparc32_register_name);
- set_gdbarch_store_return_value (gdbarch, sparc_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
tdep->fp_register_bytes = 32 * 4;
tdep->print_insn_mach = bfd_mach_sparc;
break;
case bfd_mach_sparc_sparclite_le:
- set_gdbarch_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 80);
set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
set_gdbarch_register_name (gdbarch, sparclite_register_name);
- set_gdbarch_store_return_value (gdbarch, sparc_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 0; /* (all but sparclet and sparclite) */
tdep->fp_register_bytes = 0;
tdep->print_insn_mach = bfd_mach_sparc_sparclite;
break;
case bfd_mach_sparc_v9:
- set_gdbarch_extract_return_value (gdbarch, sparc64_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 125);
set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
set_gdbarch_register_name (gdbarch, sparc64_register_name);
- set_gdbarch_store_return_value (gdbarch, sparc_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
tdep->fp_register_bytes = 64 * 4;
tdep->print_insn_mach = bfd_mach_sparc_v9a;
break;
case bfd_mach_sparc_v9a:
- set_gdbarch_extract_return_value (gdbarch, sparc64_extract_return_value);
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
set_gdbarch_num_regs (gdbarch, 125);
set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
set_gdbarch_register_name (gdbarch, sparc64_register_name);
- set_gdbarch_store_return_value (gdbarch, sparc_store_return_value);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
tdep->fp_register_bytes = 64 * 4;
tdep->print_insn_mach = bfd_mach_sparc_v9a;
break;
}
+ /* Hook in OS ABI-specific overrides, if they have been registered. */
+ gdbarch_init_osabi (info, gdbarch, osabi);
+
return gdbarch;
}
+static void
+sparc_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
+ if (tdep == NULL)
+ return;
+
+ fprintf_unfiltered (file, "sparc_dump_tdep: OS ABI = %s\n",
+ gdbarch_osabi_name (tdep->osabi));
+}
generated by cgit v1.1 at 2024-11-21 19:13:03 +0000