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author | Xavier Leroy <xavier.leroy@inria.fr> | 2014-11-03 17:40:22 +0100 |
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committer | Xavier Leroy <xavier.leroy@inria.fr> | 2014-11-24 17:38:06 +0100 |
commit | ad8c37d0ebb36cb2e54baeacf5a4c7ff145b1a99 (patch) | |
tree | 34c130d8052a83b05f5db755997f7d60a94481e6 /backend/Linearizeproof.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/Linearizeproof.v')
-rw-r--r-- | backend/Linearizeproof.v | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/backend/Linearizeproof.v b/backend/Linearizeproof.v index 3b22fc68..63fa6565 100644 --- a/backend/Linearizeproof.v +++ b/backend/Linearizeproof.v @@ -62,6 +62,11 @@ Lemma symbols_preserved: Genv.find_symbol tge id = Genv.find_symbol ge id. Proof (Genv.find_symbol_transf_partial transf_fundef _ TRANSF). +Lemma public_preserved: + forall id, + Genv.public_symbol tge id = Genv.public_symbol ge id. +Proof (Genv.public_symbol_transf_partial transf_fundef _ TRANSF). + Lemma varinfo_preserved: forall b, Genv.find_var_info tge b = Genv.find_var_info ge b. Proof (Genv.find_var_info_transf_partial transf_fundef _ TRANSF). @@ -640,14 +645,14 @@ Proof. left; econstructor; split. simpl. apply plus_one. 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; econstructor; split. simpl. apply plus_one. 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 *) @@ -705,7 +710,7 @@ Proof. monadInv H8. left; econstructor; split. apply plus_one. 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. econstructor; eauto. (* return *) @@ -741,7 +746,7 @@ Theorem transf_program_correct: forward_simulation (LTL.semantics prog) (Linear.semantics tprog). Proof. eapply forward_simulation_star. - eexact symbols_preserved. + eexact public_preserved. eexact transf_initial_states. eexact transf_final_states. eexact transf_step_correct. |