open_issues/gcc: f91948d1bd857c81bb2cea688457b84fa3ce6b84 (2014-09-26; d3faa4b6d102b09a5ea17bbf81590f215b42fbc4 (2014-09-26)), GCC 4.9.

1 files changed, 0 insertions, 74 deletions

diff --git a/open_issues/gcc/libmudflap.mdwn b/open_issues/gcc/libmudflap.mdwn
deleted file mode 100644
index f14ca1bc..00000000
--- a/open_issues/gcc/libmudflap.mdwn
+++ /dev/null
@@ -1,74 +0,0 @@
-[[!meta copyright="Copyright © 2008, 2009 Free Software Foundation, Inc."]]
-
-[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
-id="license" text="Permission is granted to copy, distribute and/or modify this
-document under the terms of the GNU Free Documentation License, Version 1.2 or
-any later version published by the Free Software Foundation; with no Invariant
-Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
-is included in the section entitled
-[[GNU Free Documentation License|/fdl]]."]]"""]]
-
-[[!tag open_issue_porting open_issue_gcc]]
-
-Single-threaded use appears to work:
-
-    $ echo 'int main(void) { int *a; a[10]=0; return a[5]; }' | ↩
-      gcc -o a -fmudflap -x c - -lmudflap
-    $ ./a
-    *******
-    mudflap violation 1 (check/write): time=1227208721.922064 ptr=0x1023de0 size=4
-    pc=0x1037a33 location=`<stdin>:1:26 (main)'
-          /usr/lib/libmudflap.so.0(__mf_check+0x33) [0x1037a33]
-          ./a(main+0x7c) [0x80486c4]
-          /usr/lib/libmudflap.so.0(__wrap_main+0x49) [0x1037239]
-    Nearby object 1: checked region begins 68B before and ends 65B before
-    mudflap object 0x80ca268: name=`argv[]'
-    bounds=[0x1023e24,0x1023e2b] size=8 area=static check=0r/0w liveness=0
-    alloc time=1227208721.922064 pc=0x10371d3
-    Nearby object 2: checked region begins 76B before and ends 73B before
-    mudflap object 0x80cb448: name=`environ[]'
-    bounds=[0x1023e2c,0x1023ed7] size=172 area=static check=0r/0w liveness=0
-    alloc time=1227208721.922064 pc=0x10371d3
-    number of nearby objects: 2
-    *******
-    mudflap violation 2 (check/read): time=1227208721.942109 ptr=0x1023dcc size=4
-    pc=0x1037a33 location=`<stdin>:1:35 (main)'
-          /usr/lib/libmudflap.so.0(__mf_check+0x33) [0x1037a33]
-          ./a(main+0xf3) [0x804873b]
-          /usr/lib/libmudflap.so.0(__wrap_main+0x49) [0x1037239]
-    Nearby object 1: checked region begins 88B before and ends 85B before
-    mudflap object 0x80ca268: name=`argv[]'
-    Nearby object 2: checked region begins 96B before and ends 93B before
-    mudflap object 0x80cb448: name=`environ[]'
-    number of nearby objects: 2
-
-Multi-threaded use doesn't:
-
-    $ echo 'int main(void) { int *a; a[10]=0; return a[5]; }' | ↩
-      gcc -include pthread.h -o a -fmudflapth -x c - -lmudflapth -lpthread
-    $ ./a 
-    Killed
-    $ gdb a
-    [...]
-    Starting program: /media/data/home/tschwinge/a 
-    
-    Program received signal EXC_BAD_ACCESS, Could not access memory.
-    0x01180653 in getenv () from /lib/libc.so.0.3
-    (gdb) bt
-    #0  0x01180653 in getenv () from /lib/libc.so.0.3
-    #1  0x01177a02 in __dcigettext () from /lib/libc.so.0.3
-    #2  0x01176a57 in dcgettext () from /lib/libc.so.0.3
-    #3  0x011c03b5 in strerror_r () from /lib/libc.so.0.3
-    #4  0x01175b57 in __assert_perror_fail () from /lib/libc.so.0.3
-    #5  0x0111f1ad in cthread_fork (func=0x114f630 <_hurd_msgport_receive>, arg=0x0)
-        at /build/buildd/hurd-20080607/build-tree/hurd/libpthread/pthread/cthreads-compat.c:41
-    #6  0x0115713e in _hurdsig_init () from /lib/libc.so.0.3
-    #7  0x01140852 in _hurd_proc_init@@GLIBC_2.2.6 () from /lib/libc.so.0.3
-    #8  0x01140e86 in _hurd_init () from /lib/libc.so.0.3
-    #9  0x011690ce in init1 () from /lib/libc.so.0.3
-    #10 0x00001e96 in _dl_start_user () from /lib/ld.so
-    #11 0x00000001 in ?? ()
-    #12 0x01024000 in ?? ()
-    #13 0x00000000 in ?? ()
-
-Also `libmudflap` is pthread-only.