diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Events.v | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/common/Events.v b/common/Events.v index 240af95..74c672e 100644 --- a/common/Events.v +++ b/common/Events.v @@ -1446,7 +1446,7 @@ Qed. (** ** Semantics of external functions. *) (** For functions defined outside the program ([EF_external] and [EF_builtin]), - we simply axiomatize their semantics as a predicate that satisfies + we do not define their semantics, but only assume that it satisfies [extcall_properties]. *) Parameter external_functions_sem: ident -> signature -> extcall_sem. @@ -1454,6 +1454,13 @@ Parameter external_functions_sem: ident -> signature -> extcall_sem. Axiom external_functions_properties: forall id sg, extcall_properties (external_functions_sem id sg) sg. +(** We treat inline assembly similarly. *) + +Parameter inline_assembly_sem: ident -> extcall_sem. + +Axiom inline_assembly_properties: + forall id, extcall_properties (inline_assembly_sem id) (mksignature nil None). + (** ** Combined semantics of external calls *) (** Combining the semantics given above for the various kinds of external calls, @@ -1480,7 +1487,7 @@ Definition external_call (ef: external_function): extcall_sem := | EF_memcpy sz al => extcall_memcpy_sem sz al | EF_annot txt targs => extcall_annot_sem txt targs | EF_annot_val txt targ=> extcall_annot_val_sem txt targ - | EF_inline_asm txt => extcall_annot_sem txt nil + | EF_inline_asm txt => inline_assembly_sem txt end. Theorem external_call_spec: @@ -1499,7 +1506,7 @@ Proof. apply extcall_memcpy_ok. apply extcall_annot_ok. apply extcall_annot_val_ok. - apply extcall_annot_ok. + apply inline_assembly_properties. Qed. Definition external_call_well_typed ef := ec_well_typed (external_call_spec ef). |