/* Target-dependent code for OpenBSD.
- Copyright (C) 2005-2014 Free Software Foundation, Inc.
+ Copyright (C) 2005-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "frame.h"
#include "symtab.h"
+#include "objfiles.h"
#include "obsd-tdep.h"
struct bound_minimal_symbol msym;
msym = lookup_minimal_symbol("_dl_bind", NULL, NULL);
- if (msym.minsym && MSYMBOL_VALUE_ADDRESS (msym.minsym) == pc)
+ if (msym.minsym && BMSYMBOL_VALUE_ADDRESS (msym) == pc)
return frame_unwind_caller_pc (get_current_frame ());
else
return find_solib_trampoline_target (get_current_frame (), pc);
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)
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);
}