rename open_issues.mdwn to service_solahart_jakarta_selatan__082122541663.mdwn

2 files changed, 125 insertions, 0 deletions

diff --git a/service_solahart_jakarta_selatan__082122541663/gcc/libmudflap.mdwn b/service_solahart_jakarta_selatan__082122541663/gcc/libmudflap.mdwn
new file mode 100644
index 00000000..f14ca1bc
--- /dev/null
+++ b/service_solahart_jakarta_selatan__082122541663/gcc/libmudflap.mdwn
@@ -0,0 +1,74 @@
+[[!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.
diff --git a/service_solahart_jakarta_selatan__082122541663/gcc/pie.mdwn b/service_solahart_jakarta_selatan__082122541663/gcc/pie.mdwn
new file mode 100644
index 00000000..5ae4bdcb
--- /dev/null
+++ b/service_solahart_jakarta_selatan__082122541663/gcc/pie.mdwn
@@ -0,0 +1,51 @@
+[[!meta copyright="Copyright © 2012, 2013 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]]."]]"""]]
+
+[[!meta title="Position-Independent Executables"]]
+
+[[!tag open_issue_glibc]]
+
+
+# IRC, freenode, #hurd, 2012-11-08
+
+    <pinotree> tschwinge: i'm not totally sure, but it seems the pie options
+      for gcc/ld are causing issues
+    <pinotree> namely, producing executables that sigsegv straight away
+    <tschwinge> pinotree: OK, I do remember some issues about these, too.
+    <tschwinge> Also for -pg.
+    <tschwinge> These have in common that they use different crt*.o files for
+      linking.
+    <tschwinge> Might well be there's some bugs there.
+    <pinotree> one way is to try the w3m debian build: the current build
+      configuration enables also pie, which in turns makes an helper executable
+      (mktable) sigsegv when invoked
+    <pinotree> if «,-pie» is appended to the DEB_BUILD_MAINT_OPTIONS variable
+      in debian/rules, pie is not added and the resulting mktable runs
+      correctly
+
+
+## IRC, OFTC, #debian-hurd, 2012-11-09
+
+    <pinotree> youpi: ah, as i noted to tschwinge earlier, it seems -fPIE -pie
+      miscompile stuff
+    <youpi> uh
+    <pinotree> this causes the w3m build failure and (indirectly, due to elinks
+      built with -pie) aptitude
+
+
+## IRC, freenode, #hurd, 2013-01-19
+
+    <gnu_srs> pinotree: I can confirm that -fPIE -pie fails and only -fPIE
+      works for mktable in w3m. Still have to check with elinks. What's up doc?
+
+
+## [[!message-id "20130211040854.GN5926@type.youpi.perso.aquilenet.fr"]]
+
+[[glibc]] `t/pie-sbrk` branch.