diff options
Diffstat (limited to 'gdb/mips-tdep.c')
| -rw-r--r-- | gdb/mips-tdep.c | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index 16ebaca..67409f6 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -38,6 +38,7 @@ #include "target.h" #include "arch-utils.h" #include "regcache.h" +#include "osabi.h" #include "opcode/mips.h" #include "elf/mips.h" @@ -119,6 +120,7 @@ struct gdbarch_tdep { /* from the elf header */ int elf_flags; + /* mips options */ enum mips_abi mips_abi; const char *mips_abi_string; @@ -131,6 +133,8 @@ struct gdbarch_tdep int mips_default_stack_argsize; int gdb_target_is_mips64; int default_mask_address_p; + + enum gdb_osabi osabi; }; #if GDB_MULTI_ARCH @@ -4132,6 +4136,7 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_tdep *tdep; int elf_flags; enum mips_abi mips_abi; + enum gdb_osabi osabi = GDB_OSABI_UNKNOWN; /* Reset the disassembly info, in case it was set to something non-default. */ @@ -4139,12 +4144,18 @@ mips_gdbarch_init (struct gdbarch_info info, tm_print_insn_info.arch = bfd_arch_unknown; tm_print_insn_info.mach = 0; - /* Extract the elf_flags if available */ - if (info.abfd != NULL - && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour) - elf_flags = elf_elfheader (info.abfd)->e_flags; - else - elf_flags = 0; + elf_flags = 0; + + if (info.abfd) + { + /* First of all, extract the elf_flags, if available. */ + if (bfd_get_flavour (info.abfd) == bfd_target_elf_flavour) + elf_flags = elf_elfheader (info.abfd)->e_flags; + + /* Try to determine the OS ABI of the object we are loading. If + we end up with `unknown', just leave it that way. */ + osabi = gdbarch_lookup_osabi (info.abfd); + } /* Check ELF_FLAGS to see if it specifies the ABI being used. */ switch ((elf_flags & EF_MIPS_ABI)) @@ -4215,13 +4226,15 @@ mips_gdbarch_init (struct gdbarch_info info, continue; if (gdbarch_tdep (arches->gdbarch)->mips_abi != mips_abi) continue; - return arches->gdbarch; + if (gdbarch_tdep (arches->gdbarch)->osabi == osabi) + return arches->gdbarch; } /* Need a new architecture. Fill in a target specific vector. */ tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep)); gdbarch = gdbarch_alloc (&info, tdep); tdep->elf_flags = elf_flags; + tdep->osabi = osabi; /* Initially set everything according to the default ABI/ISA. */ set_gdbarch_short_bit (gdbarch, 16); @@ -4433,6 +4446,10 @@ mips_gdbarch_init (struct gdbarch_info info, set_gdbarch_pointer_to_address (gdbarch, signed_pointer_to_address); set_gdbarch_address_to_pointer (gdbarch, address_to_signed_pointer); set_gdbarch_integer_to_address (gdbarch, mips_integer_to_address); + + /* Hook in OS ABI-specific overrides, if they have been registered. */ + gdbarch_init_osabi (info, gdbarch, osabi); + return gdbarch; } @@ -4841,6 +4858,10 @@ mips_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file) fprintf_unfiltered (file, "mips_dump_tdep: _PROC_MAGIC_ = %d\n", _PROC_MAGIC_); + + fprintf_unfiltered (file, + "mips_dump_tdep: OS ABI = %s\n", + gdbarch_osabi_name (tdep->osabi)); } void |