[Bug middle-end/45171] New: Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[Bug middle-end/45171] New: Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

At r162841, four new libjava testsuite failures appear on x86_64-apple-darwin10
at both -m32 and -m64...

FAIL: linking events
FAIL: linking getallthreads
FAIL: linking geterrorname
FAIL: linking getmethodname

These are of the form...

Executing on host:
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.4.0/libjava/testsuite/../libtool
--silent --tag=GCJ --mode=link
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/gcj
-B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/ --encoding=UTF-8
-B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.4.0/libjava/testsuite/../
/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100802/libjava/testsuite/libjava.jvmti/events.jar
natevents.o  -w  -bind_at_load -multiply_defined suppress
-Wl,-allow_stack_execute --main=events -g 
-L/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.4.0/i386/libjava/.libs
-lm   -m32 -o events    (timeout = 300)
error: Invalid DWARF in
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.4.0/libjava/testsuite/natevents.o:
DIE 0x00006a1d has multiple  AT_byte_size attributes.
compiler exited with status 1
output is:
error: Invalid DWARF in
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.4.0/libjava/testsuite/natevents.o:
DIE 0x00006a1d has multiple  AT_byte_size attributes.

FAIL: linking events
XFAIL: running events

and were not present at r162730.


-- 
           Summary: Invalid DWARF...DIE 0x00006a1d has multiple
                    AT_byte_size attributes.
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: howarth at nitro dot med dot uc dot edu
 GCC build triplet: x86_64-apple-darwin10
  GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #1 from howarth at nitro dot med dot uc dot edu  2010-08-03 14:36 -------
Created an attachment (id=21376)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21376&action=view)
assembly file for libjava jvmti.exp's linking events on x86_64-apple-darwin10


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #2 from howarth at nitro dot med dot uc dot edu  2010-08-03 15:38 -------
Created an attachment (id=21378)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21378&action=view)
preprocessed source for libjava/testsuite/libjava.jvmti/natgetallthreads.cc
from x86_64-apple-darwin10 at -m64


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #3 from howarth at nitro dot med dot uc dot edu  2010-08-03 15:39 -------
Created an attachment (id=21379)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21379&action=view)
assembly for libjava/testsuite/libjava.jvmti/natgetallthreads.cc from
x86_64-apple-darwin10 at -m64


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #4 from howarth at nitro dot med dot uc dot edu  2010-08-03 15:52 -------
This failure is likely due to using Xcode 3.2.3 and is described in the thread
at...

http://lists.apple.com/archives/xcode-users/2010/Jun/msg00189.html

New checks have been added to the linker to catch bad debug information... 

http://lists.apple.com/archives/xcode-users/2010/Jun/msg00291.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #5 from howarth at nitro dot med dot uc dot edu  2010-08-03 22:50 -------
The linkage of events succeeds if done manually (without using libtool which
invokes dsymutil)...


[MacPro:~/bad_dwarf] howarth%
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/as -arch x86_64
-force_cpusubtype_ALL -o eventsmain.o eventsmain.s
[MacPro:~/bad_dwarf] howarth%
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/collect2 -dynamic -arch
x86_64 -bind_at_load -macosx_version_min 10.6.4 -multiply_defined suppress
-weak_reference_mismatches non-weak -w -o events -lcrt1.10.5.o
-L/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.4.0/./libjava/.libs
-L/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc
-L/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.4.0/libjava/testsuite/..
eventsmain.o events.o natevents.o -allow_stack_execute -lm -lgcc_s.10.5
-lgcc_ext.10.5 -lgcc -lgcj -lm -L/sw/lib -liconv -lpthread -lz
-allow_stack_execute -ldl -lgcc_s.10.5 -lgcc_ext.10.5 -lgcc -no_compact_unwind
-lSystem

however the resulting executable triggers the warning with dsymutil...

dsymutil events
error: Invalid DWARF in /Users/howarth/bad_dwarf/natevents.o: DIE 0x00006c58
has multiple  AT_byte_size attributes.

dwarfdump natevents.o > natevents.o.dwarfdump

shows...


0x00006c58:     TAG_structure_type [39] *
                 AT_byte_size( 0x18 )
                 AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                 AT_decl_line( 213 )
                 AT_byte_size( 0x18 )
                 AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                 AT_decl_line( 213 )
                 AT_sibling( {0x00006c90} )


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #6 from howarth at nitro dot med dot uc dot edu  2010-08-03 22:59 -------
Created an attachment (id=21383)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21383&action=view)
natevents.o with duplicate AT_byte_size attributes from x86_64-apple-darwin10


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #7 from howarth at nitro dot med dot uc dot edu  2010-08-03 23:02 -------
Created an attachment (id=21385)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21385&action=view)
bz2 compressed dwarfdump of natevents.o


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #8 from howarth at nitro dot med dot uc dot edu  2010-08-03 23:29 -------
Apparently this structure is generating the duplicate AT_byte_size
attributes...


/* This structure is used when registering native methods.  */
typedef struct
{
  char *name;
  char *signature;
  void *fnPtr;                  /* Sigh.  */
} JNINativeMethod;

since it is at line 213 of libjava/classpath/include/jni.h and dwarfdump
shows...


0x00006c58:     TAG_structure_type [39] *
                 AT_byte_size( 0x18 )
                 AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                 AT_decl_line( 213 )
                 AT_byte_size( 0x18 )
                 AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                 AT_decl_line( 213 )
                 AT_sibling( {0x00006c90} )

0x00006c63:         TAG_member [12]  
                     AT_name( "name" )
                     AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                     AT_decl_line( 214 )
                     AT_type( {0x000005eb} ( char* ) )
                     AT_data_member_location( +0 )

0x00006c71:         TAG_member [12]  
                     AT_name( "signature" )
                     AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                     AT_decl_line( 215 )
                     AT_type( {0x000005eb} ( char* ) )
                     AT_data_member_location( +8 )

0x00006c7f:         TAG_member [13]  
                     AT_name( "fnPtr" )
                     AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                     AT_decl_line( 216 )
                     AT_type( {0x000005f9} ( * ) )
                     AT_data_member_location( +16 )

0x00006c8f:         NULL

0x00006c90:     TAG_typedef [2]  
                 AT_name( "JNINativeMethod" )
                 AT_decl_file(
"/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20100803/libjava/classpath/include/jni.h"
)
                 AT_decl_line( 217 )
                 AT_type( {0x00006c58} ( struct  ) )


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #9 from howarth at nitro dot med dot uc dot edu  2010-08-03 23:35 -------
This same structure for JNINativeMethod appears to be the source of the
duplicate AT_byte_size in all four failing libjava testcases.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[rth at gcc dot gnu dot org]

------- Comment #10 from rth at gcc dot gnu dot org  2010-08-04 19:33 -------
Verified with

  typedef struct { int a, b; } x;

./cc1plus -g -fno-eliminate-unused-debug-types -dA z.c

        .uleb128 0x2    # (DIE (0x2d) DW_TAG_structure_type)
        .byte   0x8     # DW_AT_byte_size
        .byte   0x1     # DW_AT_decl_file (z.c)
        .byte   0x3     # DW_AT_decl_line
        .byte   0x8     # DW_AT_byte_size
        .byte   0x1     # DW_AT_decl_file (z.c)
        .byte   0x3     # DW_AT_decl_line

Note that both byte_size and and the decl location are replicated.
This happens with the C++ compiler, but not the C compiler.


-- 

rth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rth at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-08-04 19:33:43
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug debug/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[rth at gcc dot gnu dot org]

------- Comment #11 from rth at gcc dot gnu dot org  2010-08-04 23:21 -------
This is fallout from c++/44188.


-- 

rth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |debug


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug debug/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[rth at gcc dot gnu dot org]

------- Comment #12 from rth at gcc dot gnu dot org  2010-08-04 23:32 -------
Subject: Bug 45171

Author: rth
Date: Wed Aug  4 23:32:08 2010
New Revision: 162882

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162882
Log:
PR debug/45171
* dwarf2out.c (gen_typedef_die): Don't re-generate the die of
an is_naming_typedef_decl.

Added:
    trunk/gcc/testsuite/g++.dg/debug/dwarf2/typedef4.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug middle-end/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[rth at gcc dot gnu dot org]

------- Comment #13 from rth at gcc dot gnu dot org  2010-08-04 23:41 -------
Should be fixed, but I'll leave the bug open until you get a chance
to test the whole build against that darwin linker.


-- 

rth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |WAITING
          Component|debug                       |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171

[Bug debug/45171] Invalid DWARF...DIE 0x00006a1d has multiple AT_byte_size attributes.

[howarth at nitro dot med dot uc dot edu]

------- Comment #14 from howarth at nitro dot med dot uc dot edu  2010-08-20 12:02 -------
Fixed with r162882.


-- 

howarth at nitro dot med dot uc dot edu changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45171