diff options
author | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-06-22 09:32:56 +0000 |
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committer | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-06-22 09:32:56 +0000 |
commit | c4bc9b575898ba352d0fea8289ebcaf8921dacd1 (patch) | |
tree | 5974195d1c0a004072980018cbdfda08b831e727 /ChangeLog | |
parent | 471d8d2586d984fd70f6837b117d6f275201204b (diff) | |
download | ruby-c4bc9b575898ba352d0fea8289ebcaf8921dacd1.tar.gz |
* iseq.c, vm_eval.c: set th->base_block properly.
th->base_block is information for (a) parsing, (b) compiling
and (c) setting up the frame to execute the program passed by
`eval' method. For example, (1) parser need to know up-level
variables to detect it is variable or method without paren.
Befor (a), (b) and (c), VM set th->base_block by passed bindng
(or previous frame information). After execute (a), (b) and (c),
VM should clear th->base_block. However, if (a), (b) or (c)
raises an exception, then th->base_block is not cleared.
Problem is that the uncleared value th->balo_block is used for
irrelevant iseq compilation. It causes SEGV or critical error.
I tried to solve this problem: to clear them before exception,
but finally I found out that it is difficult to do it (Ruby
program can be run in many places).
Because of this background, I set th->base_block before
compiling iseq and restore it after compiling.
Basically, th->base_block is dirty hack (similar to global
variable) and this patch is also dirty.
* bootstraptest/test_eval.rb: add a test for above.
* internal.h: remove unused decl.
* iseq.c (rb_iseq_compile_with_option): add base_block parameter.
set th->base_block before compation and restore it after
compilation.
* ruby.c (require_libraries): pass 0 as base_block instead of
setting th->base_block
* tool/compile_prelude.rb (prelude_eval): apply above changes.
* vm.c, vm_eval.c: ditto.
* vm_core.h: add comments.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36179 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ChangeLog')
-rw-r--r-- | ChangeLog | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -1,3 +1,41 @@ +Fri Jun 22 18:04:26 2012 Koichi Sasada <ko1@atdot.net> + + * iseq.c, vm_eval.c: set th->base_block properly. + th->base_block is information for (a) parsing, (b) compiling + and (c) setting up the frame to execute the program passed by + `eval' method. For example, (1) parser need to know up-level + variables to detect it is variable or method without paren. + Befor (a), (b) and (c), VM set th->base_block by passed bindng + (or previous frame information). After execute (a), (b) and (c), + VM should clear th->base_block. However, if (a), (b) or (c) + raises an exception, then th->base_block is not cleared. + Problem is that the uncleared value th->balo_block is used for + irrelevant iseq compilation. It causes SEGV or critical error. + I tried to solve this problem: to clear them before exception, + but finally I found out that it is difficult to do it (Ruby + program can be run in many places). + Because of this background, I set th->base_block before + compiling iseq and restore it after compiling. + Basically, th->base_block is dirty hack (similar to global + variable) and this patch is also dirty. + + * bootstraptest/test_eval.rb: add a test for above. + + * internal.h: remove unused decl. + + * iseq.c (rb_iseq_compile_with_option): add base_block parameter. + set th->base_block before compation and restore it after + compilation. + + * ruby.c (require_libraries): pass 0 as base_block instead of + setting th->base_block + + * tool/compile_prelude.rb (prelude_eval): apply above changes. + + * vm.c, vm_eval.c: ditto. + + * vm_core.h: add comments. + Fri Jun 22 18:19:38 2012 Tanaka Akira <akr@fsij.org> * process.c: pass struct rb_execarg value instead of its options |