https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63595
Bug ID: 63595
Summary: Segmentation faults inside kernel
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: sasha.levin at oracle dot com
CC: marxin at gcc dot gnu.org
Hi all,
I've observed segmentation faults on simple programs, such as:
$ mkdir test
Segmentation fault
Inside a kernel built from the latest master branch.
I've bisected the problem down to:
commit 52200d03c231f0bddbd4bbc5cd3608c6a1dd4598
Author: marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Oct 16 10:47:55 2014 +0000
IPA ICF pass, part 3/5
* Makefile.in: New object files included.
* cgraph.c (cgraph_node::dump): New cgraph_node flag icf_merged
is printed.
(verify_edge_corresponds_to_fndecl): More sensitive verification
of nodes that are merged by IPA ICF.
* cgraph.h (cgraph_node::num_references): New function.
* cgraphunit.c (cgraph_node::expand_thunk): White space fixed.
* common.opt: New options ipa-icf, ipa-icf-functions and
ipa-icf-variables introduced.
* doc/invoke.texi: Documentation of new options introduced.
* ipa-icf-gimple.c: New file.
* ipa-icf-gimple.h: New file.
* ipa-icf.c: New file.
* ipa-icf.h: New file.
* lto-cgraph.c (lto_output_node): Streaming of icf_merged flag added.
(input_overwrite_node): Likewise.
* lto-section-in.c: New icf section added.
* lto-streamer.h (enum lto_section_type): Likewise.
* opts.c (common_handle_option): New option added.
* passes.def: New pass included.
* timevar.def: Time variable for IPA ICF added.
* tree-pass.h: New IPA ICF pass entry point added.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216305
138bc75d-0d04-0410-961f-82ee72b054a4
