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authorAlan Hayward <alan.hayward@arm.com>2018-11-16 11:21:00 +0000
committerAlan Hayward <alan.hayward@arm.com>2018-11-16 13:45:38 +0000
commitc5ac5cbb5be91d43bd31ac0068917bdb7ab9b439 (patch)
tree95c674d261150bd96bc057c955f61f3778822ddf /gdb/gdbarch.h
parent81c688d54fdef81c5150ba64f8efa10449093e43 (diff)
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Use enum for return method for dummy calls
In call_function_by_hand_dummy, struct_return and hidden_first_param_p are used to represent a single concept. Replace with an enum. gdb/ChangeLog: * gdbarch.sh (enum function_call_return_method): Add enum. * gdbarch.h: Regenerate. * infcall.c (call_function_by_hand_dummy): Replace vars with enum.
Diffstat (limited to 'gdb/gdbarch.h')
-rw-r--r--gdb/gdbarch.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 2cb6961..e8e35fb 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -102,6 +102,29 @@ typedef void (iterate_over_regset_sections_cb)
(const char *sect_name, int supply_size, int collect_size,
const struct regset *regset, const char *human_name, void *cb_data);
+/* For a function call, does the function return a value using a
+ normal value return or a structure return - passing a hidden
+ argument pointing to storage. For the latter, there are two
+ cases: language-mandated structure return and target ABI
+ structure return. */
+
+enum function_call_return_method
+{
+ /* Standard value return. */
+ return_method_normal = 0,
+
+ /* Language ABI structure return. This is handled
+ by passing the return location as the first parameter to
+ the function, even preceding "this". */
+ return_method_hidden_param,
+
+ /* Target ABI struct return. This is target-specific; for instance,
+ on ia64 the first argument is passed in out0 but the hidden
+ structure return pointer would normally be passed in r8. */
+ return_method_struct,
+};
+
+
/* The following are pre-initialized by GDBARCH. */