Changeset 4a58895

Timestamp:

Jun 1, 2017, 3:36:59 PM (7 years ago)

Author:

Andrew Beach <ajbeach@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

676cc8c

Parents:

ab904dc

Message:

Added a proof of consept resumption exception handler. Has comparable speed to the existing termination handler under O2.

Location:

doc/working/exception

Files:

• impl/except.c (modified) (1 diff)
• impl/main.c (modified) (2 diffs)
• impl/resume-main.c (added)
• reference.c (added)

doc/working/exception/impl/except.c

@@ -97 +97 @@
                                         //is way more expansive than we might like
                                         //The information we have is :
-                                        //  - The GR (???)
+                                        //  - The GR (Series of registers)
+                                        //    GR1=GP Global Pointer of frame ref by context
                                         //  - The instruction pointer
                                         //  - The instruction pointer info (???)
-                                        //  - The CFA (???)
+                                        //  - The CFA (Canonical Frame Address)
                                         //  - The BSP (Probably the base stack pointer)
 

doc/working/exception/impl/main.c

@@ -33 +33 @@
 //libcfa but there is one problem left, see the exception table 
 //for details
+__attribute__((noinline))
 void try( void (*try_block)(), void (*catch_block)() )
 {
@@ -129 +130 @@
         raii_t a = { "Main dtor" };
 
-        foo();
+        for (unsigned int i = 0 ; i < 100000000 ; ++i) foo();
 
         printf("End of program reached\n");