diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2010-05-10 15:35:02 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2010-05-10 15:35:02 +0000 |
| commit | 7999c9ee1f09f7d555e3efc39f030564f76a3354 (patch) | |
| tree | 6f7937811f9331e3a5f5cdaa59be899c0daf71d3 /powerpc | |
| parent | df80f5b3745b5d85cbf42601f9532618c063d703 (diff) | |
- Extended traces so that pointers within globals are supported as event values.
- Revised handling of volatile reads: the execution environment
dictates the value read, via the trace of events.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1345 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'powerpc')
| -rw-r--r-- | powerpc/Asm.v | 2 | ||||
| -rw-r--r-- | powerpc/Asmgenproof.v | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/powerpc/Asm.v b/powerpc/Asm.v index fe6cf86..f4a8a1f 100644 --- a/powerpc/Asm.v +++ b/powerpc/Asm.v @@ -881,7 +881,7 @@ Inductive step: state -> trace -> state -> Prop := forall b ef args res rs m t rs' m', rs PC = Vptr b Int.zero -> Genv.find_funct_ptr ge b = Some (External ef) -> - external_call ef args m t res m' -> + external_call ef (Genv.find_symbol ge) args m t res m' -> extcall_arguments rs m ef.(ef_sig) args -> rs' = (rs#(loc_external_result ef.(ef_sig)) <- res #PC <- (rs LR)) -> diff --git a/powerpc/Asmgenproof.v b/powerpc/Asmgenproof.v index 5be4734..6a48451 100644 --- a/powerpc/Asmgenproof.v +++ b/powerpc/Asmgenproof.v @@ -1335,7 +1335,7 @@ Lemma exec_function_external_prop: (m : mem) (t0 : trace) (ms' : RegEq.t -> val) (ef : external_function) (args : list val) (res : val) (m': mem), Genv.find_funct_ptr ge fb = Some (External ef) -> - external_call ef args m t0 res m' -> + external_call ef (Genv.find_symbol ge) args m t0 res m' -> Machconcr.extcall_arguments ms m (parent_sp s) (ef_sig ef) args -> ms' = Regmap.set (Conventions.loc_result (ef_sig ef)) res ms -> exec_instr_prop (Machconcr.Callstate s fb ms m) @@ -1347,6 +1347,7 @@ Proof. left; exists (State (rs#(loc_external_result (ef_sig ef)) <- res #PC <- (rs LR)) m'); split. apply plus_one. eapply exec_step_external; eauto. + eapply external_call_symbols_preserved; eauto. exact symbols_preserved. eapply extcall_arguments_match; eauto. econstructor; eauto. unfold loc_external_result. auto with ppcgen. |