added 2 tests wrt utf string manipulations causing segfaults

diff --git a/t/segv_utf8_lc.t b/t/segv_utf8_lc.t
new file mode 100644 (file)
index 0000000..9239e6f
--- /dev/null
+++ b/t/segv_utf8_lc.t
@@ -0,0 +1,82 @@
+
+use strict;
+use warnings;
+
+use Test::More tests => 1;                      # last test to print
+
+use Devel::Declare 'method' => sub{};
+
+sub lowercase {
+        lc $_[0];
+}
+
+is lowercase("FOO\x{263a}"), "foo\x{263a}";
+
+=pod
+
+This test segfaults for me on rev 4944:
+
+gdb --args perl -I blib/arch -I blib/lib t/segv_utf8_lc.t
+
+#0  0xb7ca9a70 in dd_ck_const () from blib/arch/auto/Devel/Declare/Declare.so
+#1  0x0806be8d in Perl_vload_module ()
+#2  0x0806bfdc in Perl_load_module ()
+#3  0x080fa343 in Perl_swash_init ()
+#4  0x080fbb1b in Perl_to_utf8_case ()
+#5  0x080fbf97 in Perl_to_utf8_lower ()
+#6  0x080bdfb8 in Perl_pp_lc ()
+#7  0x080a3e0e in Perl_runops_standard ()
+#8  0x080a0420 in perl_run ()
+#9  0x080623a5 in main ()
+
+
+Summary of my perl5 (revision 5 version 10 subversion 0) configuration:
+  Platform:
+    osname=linux, osvers=2.6.24-19-386, archname=i686-linux
+    uname='linux schutz 2.6.24-19-386 #1 wed jun 18 14:09:56 utc 2008 i686 gnulinux '
+    config_args='-Dprefix=/opt/perl'
+    hint=recommended, useposix=true, d_sigaction=define
+    useithreads=undef, usemultiplicity=undef
+    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
+    use64bitint=undef, use64bitall=undef, uselongdouble=undef
+    usemymalloc=n, bincompat5005=undef
+  Compiler:
+    cc='cc', ccflags ='-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
+    optimize='-O2',
+    cppflags='-fno-strict-aliasing -pipe -I/usr/local/include'
+    ccversion='', gccversion='4.2.3 (Ubuntu 4.2.3-2ubuntu7)', gccosandvers=''
+    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
+    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
+    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
+    alignbytes=4, prototype=define
+  Linker and Libraries:
+    ld='cc', ldflags =' -L/usr/local/lib'
+    libpth=/usr/local/lib /lib /usr/lib
+    libs=-lnsl -ldl -lm -lcrypt -lutil -lc
+    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
+    libc=/lib/libc-2.7.so, so=so, useshrplib=false, libperl=libperl.a
+    gnulibc_version='2.7'
+  Dynamic Linking:
+    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
+    cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib'
+
+
+Characteristics of this binary (from libperl):
+  Compile-time options: PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP
+                        USE_LARGE_FILES USE_PERLIO
+  Built under linux
+  Compiled at Jul  4 2008 02:57:13
+  %ENV:
+    PERL5LIB="/home/rhesa/perl:/home/expman/mod_perl_scripts/cpan:/home/expman/mod_perl_scripts"
+  @INC:
+    /home/rhesa/perl
+    /home/expman/mod_perl_scripts/cpan
+    /home/expman/mod_perl_scripts
+    /opt/perl/lib/5.10.0/i686-linux
+    /opt/perl/lib/5.10.0
+    /opt/perl/lib/site_perl/5.10.0/i686-linux
+    /opt/perl/lib/site_perl/5.10.0
+    .
+
+=cut
+

diff --git a/t/segv_utf8_lc_prevented.t b/t/segv_utf8_lc_prevented.t
new file mode 100644 (file)
index 0000000..8f9b5a3
--- /dev/null
+++ b/t/segv_utf8_lc_prevented.t
@@ -0,0 +1,21 @@
+
+use strict;
+use warnings;
+
+use Test::More tests => 2;                      # last test to print
+
+use Devel::Declare 'method' => sub{};
+
+sub lowercase {
+        lc $_[0];
+}
+
+is uc("bar\x{263a}"), "BAR\x{263a}";
+is lowercase("FOO\x{263a}"), "foo\x{263a}";
+
+=pod
+
+This test does *not* segfault for me like t/segv_utf8_lc.t
+
+=cut
+