[Bug ada/18301] New: SEGV (stack overflow) compiling g-catiio.adb on Solaris 10/x86

[gcc-bugzilla at gcc dot gnu dot org]

Building libada on Solaris 10/x86 fails when compiling g-catiio.adb:

$ ../../xgcc -B../../ -c -g -O2 -fPIC      -W -Wall -gnatpg  g-catiio.adb -o g-catiio.o
xgcc: Internal error: Segmentation Fault (program gnat1)

Running gnat1 under gdb reveals that this happens due to extremely deep
recursion in

Program received signal SIGSEGV, Segmentation fault.
0x085e88bd in ggc_set_mark (p=0xd13f5bd0) at /vol/gnu/src/gcc/gcc-dist/gcc/ggc-page.c:1254
(gdb) where
#0  0x085e88bd in ggc_set_mark (p=0xd13f5bd0) at /vol/gnu/src/gcc/gcc-dist/gcc/ggc-page.c:1254
#1  0x0812b7d1 in gt_ggc_mx_lang_tree_node (x_p=0xd13f5bd0) at gtype-ada.h:27
#2  0x0812b9d2 in gt_ggc_mx_lang_tree_node (x_p=0xd13f5bf4) at gtype-ada.h:178
#3  0x0812b9d2 in gt_ggc_mx_lang_tree_node (x_p=0xd13f5c18) at gtype-ada.h:178
#4  0x0812b9d2 in gt_ggc_mx_lang_tree_node (x_p=0xd13f5c3c) at gtype-ada.h:178
#5  0x0812b9d2 in gt_ggc_mx_lang_tree_node (x_p=0xd13f5c60) at gtype-ada.h:178
#6  0x0812b9d2 in gt_ggc_mx_lang_tree_node (x_p=0xd13f5c84) at gtype-ada.h:178
#7  0x0812b9d2 in gt_ggc_mx_lang_tree_node (x_p=0xd13f5ca8) at gtype-ada.h:178
[...]

This went on to a depth of 76000+ when I aborted gnat1.  The problem exists
with the default stack size of 8430 kB; if I increase the stack size limit
to the max (i.e. 130336 kB), the compilation succeeds.  While this might be
a workaround, I don't consider it a solution.

Environment:
System: SunOS erebus 5.10 s10_69 i86pc i386 i86pc
Architecture: i86pc

	
host: i386-pc-solaris2.10
build: i386-pc-solaris2.10
target: i386-pc-solaris2.10
configured with: /vol/gnu/src/gcc/gcc-dist/configure --prefix=/vol/gcc --with-local-prefix=/vol/gcc --disable-nls --enable-languages=c,ada

How-To-Repeat:
Bootstrap current mainline as above.

-- 
           Summary: SEGV (stack overflow) compiling g-catiio.adb on Solaris
                    10/x86
           Product: gcc
           Version: 0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at techfak dot uni-bielefeld dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i386-pc-solaris2.10
  GCC host triplet: i386-pc-solaris2.10
GCC target triplet: i386-pc-solaris2.10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18301