diff options
Diffstat (limited to 'gdb/aarch64-tdep.c')
| -rw-r--r-- | gdb/aarch64-tdep.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c index de045e6..de85cb0 100644 --- a/gdb/aarch64-tdep.c +++ b/gdb/aarch64-tdep.c @@ -1034,17 +1034,23 @@ static int pass_in_v (struct gdbarch *gdbarch, struct regcache *regcache, struct aarch64_call_info *info, - const bfd_byte *buf) + int len, const bfd_byte *buf) { if (info->nsrn < 8) { enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); int regnum = AARCH64_V0_REGNUM + info->nsrn; + gdb_byte reg[V_REGISTER_SIZE]; info->argnum++; info->nsrn++; - regcache_cooked_write (regcache, regnum, buf); + memset (reg, 0, sizeof (reg)); + /* PCS C.1, the argument is allocated to the least significant + bits of V register. */ + memcpy (reg, buf, len); + regcache_cooked_write (regcache, regnum, reg); + if (aarch64_debug) { debug_printf ("arg %d in %s\n", info->argnum, @@ -1138,7 +1144,8 @@ pass_in_v_or_stack (struct gdbarch *gdbarch, struct type *type, struct value *arg) { - if (!pass_in_v (gdbarch, regcache, info, value_contents (arg))) + if (!pass_in_v (gdbarch, regcache, info, TYPE_LENGTH (type), + value_contents (arg))) pass_on_stack (info, type, arg); } @@ -1263,8 +1270,10 @@ aarch64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct type *target_type = check_typedef (TYPE_TARGET_TYPE (arg_type)); - pass_in_v (gdbarch, regcache, &info, buf); pass_in_v (gdbarch, regcache, &info, + TYPE_LENGTH (target_type), buf); + pass_in_v (gdbarch, regcache, &info, + TYPE_LENGTH (target_type), buf + TYPE_LENGTH (target_type)); } else |