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Re: [Felipe Contreras <al593181@mail.mty.itesm.mx>] bug in useldt.h
- From: Andreas Jaeger <aj at suse dot de>
- To: Greg Schafer <gschafer at zip dot com dot au>
- Cc: libc-alpha at sources dot redhat dot com,Felipe Contreras <al593181 at mail dot mty dot itesm dot mx>,Roland McGrath <rolandi at frob dot com>
- Date: Wed, 12 Dec 2001 09:43:47 +0100
- Subject: Re: [Felipe Contreras <al593181@mail.mty.itesm.mx>] bug in useldt.h
- References: <20011212110146.A18209@tigers-lfs.nsw.bigpond.net.au>
Greg Schafer <gschafer@zip.com.au> writes:
> Andreas Jaeger wrote:
>> Something like this? Felipe - and others with this problem -, please
>> regenerate configure (with autoconf 2.13!) and tell me whether it
>> looks fine in your environment.
>>
>> Ok to commit?
>
> Hi Andreas
>
> I just gave this a quick test.
>
> It fixes the first 3 linker tests but breaks the 4th ie: now it doesn't
> find -z combreloc (even in the normal case when glibc is already installed)
> and I cannot see why. No clues in config.log either.
With -nostdlib we get no rel.dyn sections and we explicitly search for
them. Jakub, is the readelf call really needed?
Uli, ok to commit the following patch - it doesn't change combreloc.
Andreas
============================================================
Index: configure.in
--- configure.in 2001/12/06 09:17:24 1.328
+++ configure.in 2001/12/12 08:42:02
@@ -999,7 +999,9 @@ EOF
cat > conftest.c <<EOF
int _start (void) { return 42; }
EOF
- if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c -Wl,--enable-new-dtags,-z,nodelete 1>&AC_FD_CC])
+ if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
+ -nostartfiles -nostdlib
+ -Wl,--enable-new-dtags,-z,nodelete 1>&AC_FD_CC])
then
libc_cv_z_nodelete=yes
else
@@ -1013,7 +1015,9 @@ EOF
cat > conftest.c <<EOF
int _start (void) { return 42; }
EOF
- if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c -Wl,--enable-new-dtags,-z,nodlopen 1>&AC_FD_CC])
+ if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
+ -nostartfiles -nostdlib
+ -Wl,--enable-new-dtags,-z,nodlopen 1>&AC_FD_CC])
then
libc_cv_z_nodlopen=yes
else
@@ -1027,7 +1031,9 @@ EOF
cat > conftest.c <<EOF
int _start (void) { return 42; }
EOF
- if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c -Wl,--enable-new-dtags,-z,initfirst 1>&AC_FD_CC])
+ if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
+ -nostartfiles -nostdlib
+ -Wl,--enable-new-dtags,-z,initfirst 1>&AC_FD_CC])
then
libc_cv_z_initfirst=yes
else
@@ -1055,7 +1061,8 @@ EOF
cat > conftest.c <<EOF
int foo (void) { return 0; }
EOF
- if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c -Wl,-z,combreloc 1>&AC_FD_CC])
+ if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
+ -Wl,-z,combreloc 1>&AC_FD_CC])
then
dnl The following test is a bit weak. We must use a tool which can test
dnl cross-platform since the gcc used can be a cross compiler. Without
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj