[Bug fortran/33538] New: bootstrap break in fortran on *-apple-darwin r128671

[Bug fortran/33538] New: bootstrap break in fortran on *-apple-darwin r128671

[andreast at gcc dot gnu dot org]

svn r128671 causes a bootstrap failure on *apple-darwin:

(gdb) r
Starting program: /Volumes/development/gcc/head/objdir/gcc/f951
/Volumes/development/gcc/head/gcc/libgfortran/intrinsics/selected_int_kind.f90
-feliminate-unused-debug-symbols -fPIC -quiet -dumpbase selected_int_kind.f90
-mmacosx-version-min=10.4 -auxbase-strip .libs/selected_int_kind.o -g -O2 -Wall
-version -fno-repack-arrays -fno-underscoring -fallow-leading-underscore
-fno-common -I . -fintrinsic-modules-path finclude -o selected_int_kind.s
Reading symbols for shared libraries .++ done
GNU F95 (GCC) version 4.3.0 20070923 (experimental) [trunk revision 128695]
(powerpc-apple-darwin8.10.0)
        compiled by GNU C version 4.3.0 20070923 (experimental) [trunk revision
128695], GMP version 4.2.2, MPFR version 2.3.0.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x0000000c
0x00177360 in dbxout_end_source_file (line=4) at
/Volumes/development/gcc/head/gcc/gcc/dbxout.c:1181
1181      if (current_file->bincl_status == BINCL_PROCESSED)
(gdb) bt
#0  0x00177360 in dbxout_end_source_file (line=4) at
/Volumes/development/gcc/head/gcc/gcc/dbxout.c:1181
#1  0x00065b28 in gfc_advance_line () at
/Volumes/development/gcc/head/gcc/gcc/fortran/scanner.c:322
#2  0x000675b8 in gfc_next_char_literal (in_string=4) at
/Volumes/development/gcc/head/gcc/gcc/fortran/scanner.c:754
#3  0x000678d8 in gfc_next_char () at
/Volumes/development/gcc/head/gcc/gcc/fortran/scanner.c:926
#4  0x000587f8 in gfc_match_literal_constant (result=0xbfffe900, signflag=0) at
/Volumes/development/gcc/head/gcc/gcc/fortran/primary.c:785
#5  0x000449fc in match_mult_operand (result=0xbfffe968) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:161
#6  0x00044cf8 in match_add_operand (result=0xbfffe9e8) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:382
#7  0x00044f84 in match_level_2 (result=0xbfffea68) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:501
#8  0x000450f8 in match_level_3 (result=0xbfffead8) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:572
#9  0x00045240 in match_and_operand (result=0xbfffeb58) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:620
#10 0x000454ac in match_or_operand (result=0xbfffebc8) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:743
#11 0x000455d0 in match_equiv_operand (result=0xbfffec38) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:786
#12 0x000456f4 in match_level_5 (result=0xbfffeca8) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:832
#13 0x0004489c in gfc_match_expr (result=0x42510c24) at
/Volumes/development/gcc/head/gcc/gcc/fortran/matchexp.c:891
#14 0x00008ef8 in gfc_match_array_spec (asp=0xbfffedb4) at
/Volumes/development/gcc/head/gcc/gcc/fortran/array.c:297
#15 0x0001a078 in gfc_match_data_decl () at
/Volumes/development/gcc/head/gcc/gcc/fortran/decl.c:1456
#16 0x0004fee0 in match_word (str=0x4 <Address 0x4 out of bounds>, subr=0x19e18
<gfc_match_data_decl>, old_locus=0xbfffef0c) at
/Volumes/development/gcc/head/gcc/gcc/fortran/parse.c:64
#17 0x000505e8 in decode_statement () at
/Volumes/development/gcc/head/gcc/gcc/fortran/parse.c:133
#18 0x000512f4 in next_statement () at
/Volumes/development/gcc/head/gcc/gcc/fortran/parse.c:505
#19 0x0005319c in parse_spec (st=ST_DATA_DECL) at
/Volumes/development/gcc/head/gcc/gcc/fortran/parse.c:1958
#20 0x00054d18 in parse_progunit (st=ST_BLOCK_DATA) at
/Volumes/development/gcc/head/gcc/gcc/fortran/parse.c:2965
#21 0x000552b4 in gfc_parse_file () at
/Volumes/development/gcc/head/gcc/gcc/fortran/parse.c:3285
#22 0x0007f684 in gfc_be_parse_file (set_yydebug=4) at
/Volumes/development/gcc/head/gcc/gcc/fortran/f95-lang.c:258
#23 0x000df3a8 in toplev_main (argc=6665944, argv=0x406c6380) at
/Volumes/development/gcc/head/gcc/gcc/toplev.c:1045
#24 0x00002430 in _start ()
#25 0x00002134 in start ()

Darwin is an arch which uses stabs, at least for Tiger and below. Aka, 10.8 and
lower.


-- 
           Summary: bootstrap break in fortran on *-apple-darwin r128671
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: andreast at gcc dot gnu dot org
 GCC build triplet: *-apple-darwin
  GCC host triplet: *-apple-darwin
GCC target triplet: *-apple-darwin


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33538

[Bug fortran/33538] bootstrap break in fortran on *-apple-darwin r128671

[burnus at gcc dot gnu dot org]

------- Comment #1 from burnus at gcc dot gnu dot org  2007-09-24 13:45 -------
See PR33502 and http://gcc.gnu.org/ml/gcc-patches/2007-09/msg01721.html for the
patch which causes the regression.
See also http://gcc.gnu.org/ml/fortran/2007-09/msg00394.html


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |burnus at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33538

[Bug fortran/33538] bootstrap break in fortran on *-apple-darwin r128671

[fxcoudert at gcc dot gnu dot org]

------- Comment #2 from fxcoudert at gcc dot gnu dot org  2007-09-24 20:24 -------
Subject: Bug 33538

Author: fxcoudert
Date: Mon Sep 24 20:24:11 2007
New Revision: 128724

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128724
Log:
        PR fortran/33538
        * scanner.c, parse.c, gfortran.h: Revert revision 128671.

Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/parse.c
    trunk/gcc/fortran/scanner.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33538

[Bug fortran/33538] bootstrap break in fortran on *-apple-darwin r128671

[fxcoudert at gcc dot gnu dot org]

------- Comment #3 from fxcoudert at gcc dot gnu dot org  2007-09-24 20:26 -------
Patch reverted, trunk should be back on track. Sorry.


-- 

fxcoudert at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33538