diff options
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 9 | ||||
| -rw-r--r-- | gdb/aarch64-tdep.c | 39 |
2 files changed, 48 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ac13a92..0ee4197 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,12 @@ +2015-11-27 Yao Qi <yao.qi@linaro.org> + + * aarch64-tdep.c (aarch64_type_align): For vector type, return + its length, but with the maximum of 16 bytes. + (is_hfa): Return zero for vector type. + (aarch64_push_dummy_call): Handle short vectors. + (aarch64_extract_return_value): Likewise. + (aarch64_store_return_value): Likewise. + 2015-11-26 Daniel Colascione <dancol@dancol.org> 2015-11-26 Simon Marchi <simon.marchi@ericsson.com> diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c index de85cb0..8ce0eaa 100644 --- a/gdb/aarch64-tdep.c +++ b/gdb/aarch64-tdep.c @@ -894,6 +894,17 @@ aarch64_type_align (struct type *t) return TYPE_LENGTH (t); case TYPE_CODE_ARRAY: + if (TYPE_VECTOR (t)) + { + /* Use the natural alignment for vector types (the same for + scalar type), but the maximum alignment is 128-bit. */ + if (TYPE_LENGTH (t) > 16) + return 16; + else + return TYPE_LENGTH (t); + } + else + return aarch64_type_align (TYPE_TARGET_TYPE (t)); case TYPE_CODE_COMPLEX: return aarch64_type_align (TYPE_TARGET_TYPE (t)); @@ -921,6 +932,10 @@ is_hfa (struct type *ty) case TYPE_CODE_ARRAY: { struct type *target_ty = TYPE_TARGET_TYPE (ty); + + if (TYPE_VECTOR (ty)) + return 0; + if (TYPE_CODE (target_ty) == TYPE_CODE_FLT && TYPE_LENGTH (ty) <= 4) return 1; break; @@ -1318,6 +1333,12 @@ aarch64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, pass_on_stack (&info, arg_type, arg); } } + else if (TYPE_CODE (arg_type) == TYPE_CODE_ARRAY + && TYPE_VECTOR (arg_type) && (len == 16 || len == 8)) + { + /* Short vector types are passed in V registers. */ + pass_in_v_or_stack (gdbarch, regcache, &info, arg_type, arg); + } else if (len > 16) { /* PCS B.7 Aggregates larger than 16 bytes are passed by @@ -1643,6 +1664,15 @@ aarch64_extract_return_value (struct type *type, struct regcache *regs, valbuf += len; } } + else if (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type) + && (TYPE_LENGTH (type) == 16 || TYPE_LENGTH (type) == 8)) + { + /* Short vector is returned in V register. */ + gdb_byte buf[V_REGISTER_SIZE]; + + regcache_cooked_read (regs, AARCH64_V0_REGNUM, buf); + memcpy (valbuf, buf, TYPE_LENGTH (type)); + } else { /* For a structure or union the behaviour is as if the value had @@ -1772,6 +1802,15 @@ aarch64_store_return_value (struct type *type, struct regcache *regs, valbuf += len; } } + else if (TYPE_CODE (type) == TYPE_CODE_ARRAY && TYPE_VECTOR (type) + && (TYPE_LENGTH (type) == 8 || TYPE_LENGTH (type) == 16)) + { + /* Short vector. */ + gdb_byte buf[V_REGISTER_SIZE]; + + memcpy (buf, valbuf, TYPE_LENGTH (type)); + regcache_cooked_write (regs, AARCH64_V0_REGNUM, buf); + } else { /* For a structure or union the behaviour is as if the value had |