diff options
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/obsd-tdep.c | 28 |
2 files changed, 32 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9f347de..8f446df 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,4 +1,7 @@ -2014-02-17 Mark Kettenis <kettenis@gnu.org> +2014-02-27 Mark Kettenis <kettenis@gnu.org> + + * obsd-tdep.c (obsd_auxv_parse): New function. + (obsd_init_abi): Set auxv_parse. * gdbarch.sh (auxv_parse): New. * gdbarch.h: Regenerated. diff --git a/gdb/obsd-tdep.c b/gdb/obsd-tdep.c index b94ee41..ae8cb3c 100644 --- a/gdb/obsd-tdep.c +++ b/gdb/obsd-tdep.c @@ -289,6 +289,31 @@ obsd_gdb_signal_to_target (struct gdbarch *gdbarch, return -1; } +static int +obsd_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, + gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp) +{ + struct type *int_type = builtin_type (gdbarch)->builtin_int; + struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; + const int sizeof_auxv_type = TYPE_LENGTH (int_type); + const int sizeof_auxv_val = TYPE_LENGTH (ptr_type); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + gdb_byte *ptr = *readptr; + + if (endptr == ptr) + return 0; + + if (endptr - ptr < 2 * sizeof_auxv_val) + return -1; + + *typep = extract_unsigned_integer (ptr, sizeof_auxv_type, byte_order); + ptr += sizeof_auxv_val; /* Alignment. */ + *valp = extract_unsigned_integer (ptr, sizeof_auxv_val, byte_order); + ptr += sizeof_auxv_val; + + *readptr = ptr; + return 1; +} void obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) @@ -297,4 +322,7 @@ obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) obsd_gdb_signal_from_target); set_gdbarch_gdb_signal_to_target (gdbarch, obsd_gdb_signal_to_target); + + /* Unlike Linux, OpenBSD actually follows the ELF standard. */ + set_gdbarch_auxv_parse (gdbarch, obsd_auxv_parse); } |