diff options
| author | Xavier Leroy <xavier.leroy@inria.fr> | 2014-11-03 17:40:22 +0100 |
|---|---|---|
| committer | Xavier Leroy <xavier.leroy@inria.fr> | 2014-11-24 17:38:06 +0100 |
| commit | ad8c37d0ebb36cb2e54baeacf5a4c7ff145b1a99 (patch) | |
| tree | 34c130d8052a83b05f5db755997f7d60a94481e6 /backend/Tunnelingproof.v | |
| parent | 1e29e518e62ad88e9c2e2b180beb07434a07cdd7 (diff) | |
| download | compcert-ad8c37d0ebb36cb2e54baeacf5a4c7ff145b1a99.tar.gz compcert-ad8c37d0ebb36cb2e54baeacf5a4c7ff145b1a99.zip | |
Add Genv.public_symbol operation.
Restrict pointer event values to public global names.
Update proofs accordingly. PowerPC and ARM need updating.
Diffstat (limited to 'backend/Tunnelingproof.v')
| -rw-r--r-- | backend/Tunnelingproof.v | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/backend/Tunnelingproof.v b/backend/Tunnelingproof.v index d02cb2e1..e6588938 100644 --- a/backend/Tunnelingproof.v +++ b/backend/Tunnelingproof.v @@ -160,6 +160,11 @@ Lemma symbols_preserved: Genv.find_symbol tge id = Genv.find_symbol ge id. Proof (@Genv.find_symbol_transf _ _ _ tunnel_fundef prog). +Lemma public_preserved: + forall id, + Genv.public_symbol tge id = Genv.public_symbol ge id. +Proof (@Genv.public_symbol_transf _ _ _ tunnel_fundef prog). + Lemma varinfo_preserved: forall b, Genv.find_var_info tge b = Genv.find_var_info ge b. Proof (@Genv.find_var_info_transf _ _ _ tunnel_fundef prog). @@ -335,13 +340,13 @@ Proof. left; simpl; econstructor; split. eapply exec_Lbuiltin; eauto. eapply external_call_symbols_preserved'; eauto. - exact symbols_preserved. exact varinfo_preserved. + exact symbols_preserved. exact public_preserved. exact varinfo_preserved. econstructor; eauto. (* Lannot *) left; simpl; econstructor; split. eapply exec_Lannot; eauto. eapply external_call_symbols_preserved'; eauto. - exact symbols_preserved. exact varinfo_preserved. + exact symbols_preserved. exact public_preserved. exact varinfo_preserved. econstructor; eauto. (* Lbranch (preserved) *) @@ -373,7 +378,7 @@ Proof. left; simpl; econstructor; split. eapply exec_function_external; eauto. eapply external_call_symbols_preserved'; eauto. - exact symbols_preserved. exact varinfo_preserved. + exact symbols_preserved. exact public_preserved. exact varinfo_preserved. simpl. econstructor; eauto. (* return *) inv H3. inv H1. @@ -408,7 +413,7 @@ Theorem transf_program_correct: forward_simulation (LTL.semantics prog) (LTL.semantics tprog). Proof. eapply forward_simulation_opt. - eexact symbols_preserved. + eexact public_preserved. eexact transf_initial_states. eexact transf_final_states. eexact tunnel_step_correct. |