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author | ktsj <ktsj@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-31 02:32:48 +0000 |
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committer | ktsj <ktsj@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-31 02:32:48 +0000 |
commit | 70189a8cfd0e06230984b1033635d532c543e39d (patch) | |
tree | 3ea652e8dff9c95fb562b3622bc74f7d5882bc86 /vm.c | |
parent | 89b601d176a64f1293a3d3b5195b6735cbf880af (diff) | |
download | ruby-70189a8cfd0e06230984b1033635d532c543e39d.tar.gz |
* vm.c: check if cfp is valid. [Bug #5083] [ruby-dev:44208]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32768 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm.c')
-rw-r--r-- | vm.c | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -854,6 +854,10 @@ rb_vm_cref(void) { rb_thread_t *th = GET_THREAD(); rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp); + + if (cfp == 0) { + rb_raise(rb_eRuntimeError, "Can't call on top of Fiber or Thread"); + } return vm_get_cref(cfp->iseq, cfp->lfp, cfp->dfp); } @@ -875,6 +879,9 @@ rb_vm_cbase(void) rb_thread_t *th = GET_THREAD(); rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp); + if (cfp == 0) { + rb_raise(rb_eRuntimeError, "Can't call on top of Fiber or Thread"); + } return vm_get_cbase(cfp->iseq, cfp->lfp, cfp->dfp); } @@ -1971,6 +1978,10 @@ m_core_set_postexe(VALUE self, VALUE iseqval) rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp); VALUE proc; + if (cfp == 0) { + rb_bug("m_core_set_postexe: unreachable"); + } + GetISeqPtr(iseqval, blockiseq); blockptr = RUBY_VM_GET_BLOCK_PTR_IN_CFP(cfp); |