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[libunwind] Ltest-exc fails on x86-64


From: Arun Sharma (अरुण)
Subject: [libunwind] Ltest-exc fails on x86-64
Date: Tue, 11 Oct 2005 20:21:16 -0700
User-agent: Mozilla Thunderbird 1.0.6 (Windows/20050716)

With gcc-4.0.1 and this stack frame (as unwound by gdb):

(gdb) bt
#0  raise_exception () at Gtest-exc.c:44
#1  0x0000000000400a09 in b (n=16) at Gtest-exc.c:119
#2  0x0000000000400a77 in a (n=0) at Gtest-exc.c:98
#3  0x0000000000400a5d in a (n=1) at Gtest-exc.c:93
#4  0x0000000000400a5d in a (n=2) at Gtest-exc.c:93
#5  0x0000000000400a5d in a (n=3) at Gtest-exc.c:93
#6  0x0000000000400a5d in a (n=4) at Gtest-exc.c:93
#7  0x0000000000400a5d in a (n=5) at Gtest-exc.c:93
#8  0x0000000000400a5d in a (n=6) at Gtest-exc.c:93
#9  0x0000000000400a5d in a (n=7) at Gtest-exc.c:93
#10 0x0000000000400a5d in a (n=8) at Gtest-exc.c:93
#11 0x0000000000400a5d in a (n=9) at Gtest-exc.c:93
#12 0x0000000000400a5d in a (n=10) at Gtest-exc.c:93
#13 0x0000000000400a5d in a (n=11) at Gtest-exc.c:93
#14 0x0000000000400a5d in a (n=12) at Gtest-exc.c:93
#15 0x0000000000400a5d in a (n=13) at Gtest-exc.c:93
#16 0x0000000000400b11 in main (argc=Variable "argc" is not available.

$ ./Ltest-exc
update_frame_state: ip and cfa unchanged; stopping here (ip=0x400a5d)
Segmentation fault

$ gcc -v
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-libgcj-multifile
--enable-languages=c,c++,objc,java,f95,ada --enable-java-awt=gtk
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre
--host=x86_64-redhat-linux
Thread model: posix
gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)

Is this known?

        -Arun


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