[Bug bootstrap/45751] New: [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[Bug bootstrap/45751] New: [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[dominiq at lps dot ens dot fr]

At revision 164538 bootstrap fails at stage 1:

...

gcc   -g -fkeep-inline-functions -DIN_GCC   -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-Wold-style-definition -Wc++-compat -fno-common  -DHAVE_CONFIG_H  -o cc1
c-lang.o c-family/stub-objc.o attribs.o c-errors.o c-decl.o c-typeck.o
c-convert.o c-aux-info.o c-objc-common.o c-parser.o tree-mudflap.o
c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o
c-family/c-format.o c-family/c-gimplify.o c-family/c-lex.o c-family/c-omp.o
c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o
c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o i386-c.o
darwin-c.o \
          cc1-checksum.o main.o tree-browser.o libbackend.a ../libcpp/libcpp.a
../libdecnumber/libdecnumber.a ../libcpp/libcpp.a -lintl -L/opt/sw64/lib
-liconv  ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a 
-L/opt/sw64/lib -lcloog -lppl_c -lppl -lgmpxx -L/opt/sw64/lib -lmpc -lmpfr
-lgmp   -lz 
/opt/gcc/build_w/./gcc/xgcc -B/opt/gcc/build_w/./gcc/ -dumpspecs > tmp-specs
/bin/sh: line 1: 56759 Segmentation fault      /opt/gcc/build_w/./gcc/xgcc
-B/opt/gcc/build_w/./gcc/ -dumpspecs > tmp-specs
make[3]: *** [specs] Error 139
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

Crash reporter gives:

Process:         xgcc [56794]
Path:            /opt/gcc/build_w/gcc/xgcc
Identifier:      xgcc
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  tcsh [83530]

Date/Time:       2010-09-23 00:10:06.496 +0200
OS Version:      Mac OS X 10.6.4 (10F569)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000001001ffff0
Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   libSystem.B.dylib                   0x00007fffffe00f4c __memcpy + 1964
1   xgcc                                0x0000000100002c2f __inline_memcpy_chk
+ 44 (_string.h:59)
2   xgcc                                0x0000000100004c9c save_switch + 340
(gcc.c:3082)
3   xgcc                                0x0000000100005abb driver_handle_option
+ 3228 (gcc.c:3502)
4   xgcc                                0x0000000100016328 handle_option + 208
(opts-common.c:823)
5   xgcc                                0x000000010001673a read_cmdline_option
+ 444 (opts-common.c:962)
6   xgcc                                0x0000000100006895 process_command +
3482 (gcc.c:3750)
7   xgcc                                0x000000010000eb67 main + 3176
(gcc.c:6219)
8   xgcc                                0x00000001000014bc start + 52

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0xfffffffffffffe00  rbx: 0x000000010020d768  rcx: 0xffffffffffff2e00 
rdx: 0x0000000000000030
  rdi: 0x000000010020d220  rsi: 0x000000010020d3c8  rbp: 0x00007fff5fbfd5f0 
rsp: 0x00007fff5fbfd5f0
   r8: 0x00000001002fc0a0   r9: 0x00000001002fc0a4  r10: 0x000000000000002d 
r11: 0x000000010020d1f0
  r12: 0x0000000000000000  r13: 0x0000000000000000  r14: 0x0000000000000000 
r15: 0x0000000000000000
  rip: 0x00007fffffe00f4c  rfl: 0x0000000000010286  cr2: 0x00000001001ffff0

Binary Images:
       0x100000000 -        0x10004aff7 +xgcc ??? (???)
<051C94EF-767B-D2B6-6694-6714C53EC614> /opt/gcc/build_w/gcc/xgcc
       0x100080000 -        0x100087fff +libintl.8.dylib 9.2.0 (compatibility
9.0.0) <77764503-B558-C86F-5C9D-0896504B2BA5> /sw64/lib/libintl.8.dylib
       0x10008c000 -        0x100187fe7 +libiconv.2.dylib 7.0.0 (compatibility
7.0.0) <2F723465-84E7-77FB-F9FD-572D6A0DBBCC> /sw64/lib/libiconv.2.dylib
    0x7fff5fc00000 -     0x7fff5fc3bdef  dyld 132.1 (???)
<B536F2F1-9DF1-3B6C-1C2C-9075EA219A06> /usr/lib/dyld
    0x7fff817a4000 -     0x7fff81964fef  libSystem.B.dylib 125.2.0
(compatibility 1.0.0) <95E02DD0-ADEA-745B-E7FA-ABA064E4658C>
/usr/lib/libSystem.B.dylib
    0x7fff81965000 -     0x7fff81969ff7  libmathCommon.A.dylib 315.0.0
(compatibility 1.0.0) <95718673-FEEE-B6ED-B127-BCDBDB60D4E5>
/usr/lib/system/libmathCommon.A.dylib
    0x7fff83147000 -     0x7fff83158ff7  libz.1.dylib 1.2.3 (compatibility
1.0.0) <FB5EE53A-0534-0FFA-B2ED-486609433717> /usr/lib/libz.1.dylib
    0x7fff85da6000 -     0x7fff85f1bff7  com.apple.CoreFoundation 6.6.3
(550.29) <48810602-63C3-994D-E563-DD02B16E76E1>
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
    0x7fff86268000 -     0x7fff862e5fef  libstdc++.6.dylib 7.9.0 (compatibility
7.0.0) <35ECA411-2C08-FD7D-11B1-1B7A04921A5C> /usr/lib/libstdc++.6.dylib
    0x7fff86622000 -     0x7fff866d8fff  libobjc.A.dylib 227.0.0 (compatibility
1.0.0) <F206BE6D-8777-AE6C-B367-7BEA76C14241> /usr/lib/libobjc.A.dylib
    0x7fff88767000 -     0x7fff887b3fff  libauto.dylib ??? (???)
<072804DF-36AD-2DBE-7EF8-639CFB79077F> /usr/lib/libauto.dylib
    0x7fff88855000 -     0x7fff88a13fff  libicucore.A.dylib 40.0.0
(compatibility 1.0.0) <0E53A4A6-AC06-1B61-2285-248F534EE356>
/usr/lib/libicucore.A.dylib
    0x7fffffe00000 -     0x7fffffe01fff  libSystem.B.dylib ??? (???)
<95E02DD0-ADEA-745B-E7FA-ABA064E4658C> /usr/lib/libSystem.B.dylib


-- 
           Summary: [4.6 Regression] Bootstrap failure: at stage 1 xgcc
                    segfault
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dominiq at lps dot ens dot fr
 GCC build triplet: x86_64-apple-darwin10.4.0
  GCC host triplet: x86_64-apple-darwin10.4.0
GCC target triplet: x86_64-apple-darwin10.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[dominiq at lps dot ens dot fr]

------- Comment #1 from dominiq at lps dot ens dot fr  2010-09-22 22:30 -------
Same thing on powerpc-apple-darwin9.


-- 

dominiq at lps dot ens dot fr changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|x86_64-apple-darwin10.4.0   |*-apple-darwin*
   GCC host triplet|x86_64-apple-darwin10.4.0   |*-apple-darwin*
 GCC target triplet|x86_64-apple-darwin10.4.0   |*-apple-darwin*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[howarth at nitro dot med dot uc dot edu]

------- Comment #2 from howarth at nitro dot med dot uc dot edu  2010-09-23 00:11 -------
Caused by...


Author: jsm28
Date: Wed Sep 22 20:19:39 2010
New Revision: 164532

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164532
Log:
        * opts-common.c (prune_options): Make static.  Work with decoded
        options.
        (decode_cmdline_options_to_array): Call prune_options.  Don't
        resize option array here.
        * opts.h (prune_options): Remove prototype.
        * gcc.c (process_command): Take decoded options; don't call
        decode_cmdline_options_to_array here.  Use decoded options for
        argv[0].
        (main): Call decode_cmdline_options_to_array here instead of
        prune_options.  Update call to process_command.
        * config/darwin-driver.c: Include opts.h.
        (darwin_default_min_version): Work with decoded options.  Don't
        handle -b or -V here.
        * config/darwin.h (darwin_default_min_version): Update prototype.
        (GCC_DRIVER_HOST_INITIALIZATION): Update call to
        darwin_default_min_version.
        * config/i386/cygwin.h (mingw_scan): Update prototype.
        (GCC_DRIVER_HOST_INITIALIZATION): Update call to mingw_scan.
        * config/i386/cygwin1.c: Include opts.h.
        (mingw_scan): Work with decoded options.
        * config/i386/t-cygwin (cygwin1.o): Update dependencies.
        * config/t-darwin (darwin-driver.o): Update dependencies.

According to original patch this was never tested directly on darwin...

http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01007.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[dominiq at lps dot ens dot fr]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 824 bytes --]



------- Comment #3 from dominiq at lps dot ens dot fr  2010-09-23 08:39 -------
On powerpc-apple-darwin9 I get


[karma] gcc/darwin_buildw% gcc/xgcc -
Segmentation fault
[karma] gcc/darwin_buildw% gcc/xgcc -v
xgcc: warning: ­
xgcc(49989) malloc: *** mmap(size=3638091776) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug

xgcc: out of memory allocating 3638090932 bytes after a total of 0 bytes


-- 

dominiq at lps dot ens dot fr changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |iains at gcc dot gnu dot org
           Severity|normal                      |blocker


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[iains at gcc dot gnu dot org]

------- Comment #4 from iains at gcc dot gnu dot org  2010-09-23 09:34 -------
this appears to be to do with the driver construction of a default
macosx-version-min.

./gcc/xgcc -Bgcc -dumpspecs => bus error

./gcc/xgcc -Bgcc -dumpspecs -mmacosx-version-min=10.5 => completes normally.

Initial debugging suggests that the constructed option is being flagged as
error=4 (wrong language)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[iains at gcc dot gnu dot org]

------- Comment #5 from iains at gcc dot gnu dot org  2010-09-23 10:35 -------
if the array was intended to be an array of structs then this fixes:

Index: gcc/config/darwin-driver.c
===================================================================
--- gcc/config/darwin-driver.c  (revision 164549)
+++ gcc/config/darwin-driver.c  (working copy)
@@ -128,7 +128,7 @@ darwin_default_min_version (unsigned int *decoded_
   generate_option (OPT_mmacosx_version_min_, new_flag,
                   1, CL_DRIVER, &(*decoded_options)[1]);
   memcpy (*decoded_options + 2, argv + 1,
-         (argc - 1) * sizeof (struct cl_decoded_option *));
+         (argc - 1) * sizeof (struct cl_decoded_option));
   return;

  parse_failed:


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[dominiq at lps dot ens dot fr]

------- Comment #6 from dominiq at lps dot ens dot fr  2010-09-23 12:02 -------
> if the array was intended to be an array of structs then this fixes: ...

Currently at stage 2 for revision 164490 on powerpc-apple-darwin9 with the
patch in comment #5. Thanks.

Side question: what could be the meaning of "sizeof (struct cl_decoded_option
*)"?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[dominiq at lps dot ens dot fr]

------- Comment #7 from dominiq at lps dot ens dot fr  2010-09-23 14:14 -------
Bootstrapped revision 164560 on x86_64-apple-darwin10.4.0 with the following
patch:

--- ../_clean/gcc/config/darwin-driver.c        2010-09-22 22:38:53.000000000
+0200
+++ gcc/config/darwin-driver.c  2010-09-23 14:13:53.000000000 +0200
@@ -76,7 +76,7 @@ darwin_default_min_version (unsigned int
        generate_option (OPT_mmacosx_version_min_, macosx_deployment_target,
                         1, CL_DRIVER, &(*decoded_options)[1]);
        memcpy (*decoded_options + 2, argv + 1,
-               (argc - 1) * sizeof (struct cl_decoded_option *));
+               (argc - 1) * sizeof (struct cl_decoded_option));
        return;
       }
   }
@@ -128,7 +128,7 @@ darwin_default_min_version (unsigned int
   generate_option (OPT_mmacosx_version_min_, new_flag,
                   1, CL_DRIVER, &(*decoded_options)[1]);
   memcpy (*decoded_options + 2, argv + 1,
-         (argc - 1) * sizeof (struct cl_decoded_option *));
+         (argc - 1) * sizeof (struct cl_decoded_option));
   return;

  parse_failed:


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[pinskia at gcc dot gnu dot org]

------- Comment #8 from pinskia at gcc dot gnu dot org  2010-09-23 15:28 -------
>Side question: what could be the meaning of "sizeof (struct cl_decoded_option
*)"?

The size of the pointer (which can be useful sometimes but not in this case).


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |build, ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2010-09-23 15:28:36
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[dominiq at lps dot ens dot fr]

------- Comment #9 from dominiq at lps dot ens dot fr  2010-09-23 15:30 -------
Could someone commit the patch in comment #7. It cannot make the matter worse
than it is without it.
TIA


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

Iain Sandoe <iains at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #11 from Iain Sandoe <iains at gcc dot gnu.org> 2010-09-24 14:57:06 UTC ---
fixed

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[Bug bootstrap/45751] [4.6 Regression] Bootstrap failure: at stage 1 xgcc segfault

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45751

--- Comment #10 from Iain Sandoe <iains at gcc dot gnu.org> 2010-09-24 14:06:40 UTC ---
Author: iains
Date: Fri Sep 24 14:06:35 2010
New Revision: 164592

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164592
Log:

    PR bootstrap/45751
    * gcc/config/darwin-driver.c (darwin_default_min_version):
    Adjust size passed to memcpy in two places.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/darwin-driver.c

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