+2000-05-13 H.J. Lu (hjl@gnu.org)
+
+ * lib/ld-lib.exp (default_ld_link): Redirect the linker output
+ to link_output and make it global.
+
+ * ld-elfvsb/elf-offset.ld: New. ELF visibility fearture
+ tests.
+ * ld-elfvsb/elfvsb.dat: Likewise.
+ * ld-elfvsb/elfvsb.exp: Likewise.
+ * ld-elfvsb/main.c: Likewise.
+ * ld-elfvsb/sh1.c: Likewise.
+ * ld-elfvsb/sh2.c: Likewise.
+
Fri Apr 21 15:16:07 2000 Richard Henderson <rth@cygnus.com>
* testsuite/ld-scripts/phdrs.exp: IA-64 is 64-bit ELF too.
--- /dev/null
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
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+ {
+ *(.rel.text)
+ *(.rel.text.*)
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+ }
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+ {
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+ }
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+ {
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+ *(.rel.data.*)
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+ }
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+ {
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+ we make sure it is first. Because this is a wildcard, it
+ doesn't matter if the user does not actually link against
+ crtbegin.o; the linker won't look for a file to match a
+ wildcard. The wildcard also means that it doesn't matter which
+ directory crtbegin.o is in. */
+ KEEP (*crtbegin.o(.ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+ .got : { *(.got.plt) *(.got) }
+ .dynamic : { *(.dynamic) }
+ /* We want the small data sections together, so single-instruction offsets
+ can access them all, and initialized data all before uninitialized, so
+ we can shorten the on-disk segment size. */
+ .sdata : { *(.sdata) *(.sdata.*) }
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+ {
+ *(.dynbss)
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+ *(COMMON)
+ /* Align here to ensure that the .bss section occupies space up to
+ _end. Align after .bss to ensure correct alignment even if the
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+ PROVIDE (end = .);
+ /* Stabs debugging sections. */
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+ of the section so we begin them at 0. */
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+ /* These must appear regardless of . */
+}
--- /dev/null
+mainvar == 1
+overriddenvar == 2
+shlibvar1 == 3
+shlib_mainvar () == 1
+shlib_overriddenvar () == 2
+shlib_shlibvar1 () == 3
+shlib_shlibvar2 () == 4
+shlib_shlibcall () == 5
+shlib_shlibcall2 () == 8
+shlib_maincall () == 6
+main_called () == 6
+shlib_checkfunptr1 (shlib_shlibvar1) == 1
+shlib_checkfunptr2 (main_called) == 1
+shlib_getfunptr1 () == shlib_shlibvar1
+shlib_getfunptr2 () == main_called
+shlib_check () == 1
+visibility_check () == 1
+visibility_checkfunptr () == 1
+main_visibility_check () == 1
--- /dev/null
+# Expect script for ld-visibility tests
+# Copyright (C) 2000 Free Software Foundation
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# Written by Ian Lance Taylor (ian@cygnus.com)
+# and H.J. Lu (hjl@gnu.org)
+#
+
+# Make sure that ld can generate ELF shared libraries with visibility.
+
+# This test can only be run if ld generates native executables.
+if ![isnative] then {return}
+
+# This test can only be run on a couple of ELF platforms.
+# Square bracket expressions seem to confuse istarget.
+if { ![istarget i386-*-linux*] \
+ && ![istarget i486-*-linux*] \
+ && ![istarget i586-*-linux*] \
+ && ![istarget i686-*-linux*] \
+ && ![istarget m68k-*-linux*] \
+ && ![istarget powerpc-*-linux*] \
+ && ![istarget sparc*-*-linux*] } {
+ return
+}
+
+if { [istarget *-*-linux*aout*] \
+ || [istarget *-*-linux*oldld*] } {
+ return
+}
+
+set tmpdir tmpdir
+set SHCFLAG ""
+
+if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+
+ # AIX shared libraries do not seem to support useful features,
+ # like overriding the shared library function or letting the
+ # shared library refer to objects defined in the main program. We
+ # avoid testing those features.
+ set SHCFLAG "-DXCOFF_TEST"
+
+ # The AIX 3.2.5 loader appears to randomly fail when loading
+ # shared libraries from NSF mounted partitions, so we avoid any
+ # potential problems by using a local directory.
+ catch {exec /bin/sh -c "echo $$"} pid
+ set tmpdir /usr/tmp/ld.$pid
+ catch "exec mkdir $tmpdir" exec_status
+
+ # On AIX, we need to explicitly export the symbols the shared
+ # library is going to provide, and need.
+ set file [open $tmpdir/xcoff.exp w]
+ puts $file shlibvar1
+ puts $file shlibvar2
+ puts $file shlib_shlibvar1
+ puts $file shlib_shlibvar2
+ puts $file shlib_shlibcall
+ puts $file shlib_shlibcalled
+ puts $file shlib_checkfunptr1
+ puts $file shlib_getfunptr1
+ puts $file shlib_check
+ close $file
+}
+
+# The test procedure.
+proc visibility_test { visibility progname testname main sh1 sh2 dat args } {
+ global ld
+ global srcdir
+ global subdir
+ global exec_output
+ global link_output
+ global host_triplet
+ global tmpdir
+
+ if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" }
+
+ # Build the shared library.
+ # On AIX, we need to use an export file.
+ set shared -shared
+ if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+ set shared "-bM:SRE -bE:$tmpdir/xcoff.exp"
+ }
+ if {![ld_simple_link $ld $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} {
+ fail "$testname"
+ return
+ }
+
+ # Link against the shared library. Use -rpath so that the
+ # dynamic linker can locate the shared library at runtime.
+ # On AIX, we must include /lib in -rpath, as otherwise the loader
+ # can not find -lc.
+ set rpath $tmpdir
+ if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+ set rpath /lib:$tmpdir
+ }
+ if ![ld_link $ld $tmpdir/$progname "-rpath $rpath $tmpdir/$main $tmpdir/$progname.so"] {
+ if { [ string match $visibility "hidden" ]
+ && [string match "*/main.c*: undefined reference to \`visibility\'" $link_output] } {
+ pass "$testname"
+ } else {
+ fail "$testname"
+ }
+ return
+ }
+
+ if [ string match $visibility "hidden" ] {
+ fail "$testname"
+ }
+
+ # Run the resulting program
+ send_log "$tmpdir/$progname >$tmpdir/$progname.out\n"
+ verbose "$tmpdir/$progname >$tmpdir/$progname.out"
+ catch "exec $tmpdir/$progname >$tmpdir/$progname.out" exec_output
+ if ![string match "" $exec_output] then {
+ send_log "$exec_output\n"
+ verbose "$exec_output"
+ fail "$testname"
+ return
+ }
+
+ send_log "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat\n"
+ verbose "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat"
+ catch "exec diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" exec_output
+ set exec_output [prune_warnings $exec_output]
+
+ if {![string match "" $exec_output]} then {
+ send_log "$exec_output\n"
+ verbose "$exec_output"
+ fail "$testname"
+ return
+ }
+
+ pass "$testname"
+}
+
+proc visibility_run {visibility} {
+ global CC
+ global CFLAGS
+ global SHCFLAG
+ global srcdir
+ global subdir
+ global tmpdir
+ global picflag
+ global target_triplet
+
+ if [ string match $visibility "hidden" ] {
+ set VSBCFLAG "-DHIDDEN_TEST"
+ } else { if [ string match $visibility "hidden_normal" ] {
+ set VSBCFLAG "-DHIDDEN_NORMAL_TEST"
+ } else { if [ string match $visibility "protected" ] {
+ set VSBCFLAG "-DPROTECTED_TEST"
+ } else {
+ set VSBCFLAG ""
+ }}}
+
+ # Compile the main program.
+ if ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o] {
+ unresolved "visibility ($visibility) (non PIC)"
+ unresolved "visibility ($visibility)"
+ } else {
+ # The shared library is composed of two files. First compile them
+ # without using -fpic. That should work on an ELF system,
+ # although it will be less efficient because the dynamic linker
+ # will need to do more relocation work. However, note that not
+ # using -fpic will cause some of the tests to return different
+ # results.
+ if { ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o]
+ || ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG" $srcdir/$subdir/sh2.c $tmpdir/sh2np.o] } {
+ unresolved "visibility ($visibility) (non PIC)"
+ } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+ visibility_test $visibility vnp "visibility ($visibility) (nonPIC)" mainnp.o sh1np.o sh2np.o xcoff
+ } else {
+ # SunOS non PIC shared libraries don't permit some cases of
+ # overriding.
+ if [ string match $visibility "protected" ] {
+ setup_xfail $target_triplet
+ } else {
+ setup_xfail "*-*-sunos4*"
+ }
+ visibility_test $visibility vnp "visibility ($visibility) (non PIC)" mainnp.o sh1np.o sh2np.o elfvsb
+
+ # Test ELF shared library relocations with a non-zero load
+ # address for the library. Near as I can tell, the R_*_RELATIVE
+ # relocations for various targets are broken in the case where
+ # the load address is not zero (which is the default).
+ if [ string match $visibility "protected" ] {
+ setup_xfail $target_triplet
+ } else {
+ setup_xfail "*-*-sunos4*"
+ setup_xfail "*-*-linux*libc1"
+ }
+ visibility_test $visibility vnp "visibility ($visibility) (non PIC, load offset)" \
+ mainnp.o sh1np.o sh2np.o elfvsb \
+ "-T $srcdir/$subdir/elf-offset.ld"
+ } }
+
+ # Now compile the code using -fpic.
+
+ if { ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o]
+ || ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } {
+ unresolved "visibility ($visibility)"
+ } else {
+ if [ string match $visibility "protected" ] {
+ setup_xfail $target_triplet
+ }
+ # SunOS can not compare function pointers correctly
+ if [istarget "*-*-sunos4*"] {
+ visibility_test $visibility vp "visibility ($visibility)" mainnp.o sh1p.o sh2p.o sun4
+ } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+ visibility_test $visibility vp "visibility ($visibility)" mainnp.o sh1p.o sh2p.o xcoff
+ } else {
+ visibility_test $visibility vp "visibility ($visibility)" mainnp.o sh1p.o sh2p.o elfvsb
+ } }
+ }
+ }
+
+ # Now do the same tests again, but this time compile main.c PIC.
+ if ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] {
+ unresolved "visibility ($visibility) (PIC main, non PIC so)"
+ unresolved "visibility ($visibility) (PIC main)"
+ } else {
+ if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } {
+ if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+ visibility_test $visibility vmpnp "visibility ($visibility) (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff
+ } else {
+ # SunOS non PIC shared libraries don't permit some cases of
+ # overriding.
+ if [ string match $visibility "protected" ] {
+ setup_xfail $target_triplet
+ } else {
+ setup_xfail "*-*-sunos4*"
+ }
+ visibility_test $visibility vmpnp "visibility ($visibility) (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o elfvsb
+ }
+ } else {
+ unresolved "visibility (PIC main, non PIC so)"
+ }
+
+ if { [file exists $tmpdir/sh1p.o ] && [ file exists $tmpdir/sh2p.o ] } {
+ if [ string match $visibility "protected" ] {
+ setup_xfail $target_triplet
+ }
+ if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+ visibility_test $visibility vmpp "visibility ($visibility) (PIC main)" mainp.o sh1p.o sh2p.o xcoff
+ } else {
+ visibility_test $visibility vmpp "visibility ($visibility) (PIC main)" mainp.o sh1p.o sh2p.o elfvsb
+ }
+ } else {
+ unresolved "visibility ($visibility) (PIC main)"
+ }
+ }
+}
+
+if [istarget mips*-*-*] {
+ set picflag ""
+} else {
+ # Unfortunately, the gcc argument is -fpic and the cc argument is
+ # -KPIC. We have to try both.
+ set picflag "-fpic"
+ send_log "$CC $picflag\n"
+ verbose "$CC $picflag"
+ catch "exec $CC $picflag" exec_output
+ send_log "$exec_output\n"
+ verbose "--" "$exec_output"
+ if { [string match "*illegal option*" $exec_output] \
+ || [string match "*option ignored*" $exec_output] \
+ || [string match "*unrecognized option*" $exec_output] \
+ || [string match "*passed to ld*" $exec_output] } {
+ if [istarget *-*-sunos4*] {
+ set picflag "-pic"
+ } else {
+ set picflag "-KPIC"
+ }
+ }
+}
+verbose "Using $picflag to compile PIC code"
+
+visibility_run hidden
+visibility_run hidden_normal
+visibility_run protected
+visibility_run normal
+
+if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
+ # Remove the temporary directory.
+ catch "exec rm -rf $tmpdir" exec_status
+}
--- /dev/null
+/* This is the main program for the shared library test. */
+
+#include <stdio.h>
+
+int mainvar = 1;
+int overriddenvar = 2;
+extern int shlibvar1;
+
+extern int shlib_mainvar ();
+extern int shlib_overriddenvar ();
+extern int shlib_shlibvar1 ();
+extern int shlib_shlibvar2 ();
+extern int shlib_shlibcall ();
+extern int shlib_maincall ();
+extern int shlib_checkfunptr1 ();
+extern int shlib_checkfunptr2 ();
+extern int (*shlib_getfunptr1 ()) ();
+extern int (*shlib_getfunptr2 ()) ();
+extern int shlib_check ();
+extern int shlib_shlibcall2 ();
+extern int visibility ();
+extern int visibility_check ();
+extern int visibility_checkfunptr ();
+extern void *visibility_funptr ();
+
+#if !defined (HIDDEN_TEST) && defined (PROTECTED_TEST)
+int
+visibility ()
+{
+ return 1;
+}
+#endif
+
+static int
+main_visibility_check ()
+{
+ return visibility_funptr () == visibility;
+}
+
+/* This function is called by the shared library. */
+
+int
+main_called ()
+{
+ return 6;
+}
+
+/* This function overrides a function in the shared library. */
+
+int
+shlib_overriddencall2 ()
+{
+ return 8;
+}
+
+int
+main ()
+{
+ int (*p) ();
+
+ printf ("mainvar == %d\n", mainvar);
+ printf ("overriddenvar == %d\n", overriddenvar);
+ printf ("shlibvar1 == %d\n", shlibvar1);
+#ifndef XCOFF_TEST
+ printf ("shlib_mainvar () == %d\n", shlib_mainvar ());
+ printf ("shlib_overriddenvar () == %d\n", shlib_overriddenvar ());
+#endif
+ printf ("shlib_shlibvar1 () == %d\n", shlib_shlibvar1 ());
+ printf ("shlib_shlibvar2 () == %d\n", shlib_shlibvar2 ());
+ printf ("shlib_shlibcall () == %d\n", shlib_shlibcall ());
+#ifndef XCOFF_TEST
+ printf ("shlib_shlibcall2 () == %d\n", shlib_shlibcall2 ());
+ printf ("shlib_maincall () == %d\n", shlib_maincall ());
+#endif
+ printf ("main_called () == %d\n", main_called ());
+ printf ("shlib_checkfunptr1 (shlib_shlibvar1) == %d\n",
+ shlib_checkfunptr1 (shlib_shlibvar1));
+#ifndef XCOFF_TEST
+ printf ("shlib_checkfunptr2 (main_called) == %d\n",
+ shlib_checkfunptr2 (main_called));
+#endif
+ p = shlib_getfunptr1 ();
+ printf ("shlib_getfunptr1 () ");
+ if (p == shlib_shlibvar1)
+ printf ("==");
+ else
+ printf ("!=");
+ printf (" shlib_shlibvar1\n");
+#ifndef XCOFF_TEST
+ p = shlib_getfunptr2 ();
+ printf ("shlib_getfunptr2 () ");
+ if (p == main_called)
+ printf ("==");
+ else
+ printf ("!=");
+ printf (" main_called\n");
+#endif
+ printf ("shlib_check () == %d\n", shlib_check ());
+ printf ("visibility_check () == %d\n", visibility_check ());
+ printf ("visibility_checkfunptr () == %d\n",
+ visibility_checkfunptr ());
+ printf ("main_visibility_check () == %d\n", main_visibility_check ());
+ return 0;
+}
--- /dev/null
+/* This is part of the shared library ld test. This file becomes part
+ of a shared library. */
+
+/* This variable is supplied by the main program. */
+#ifndef XCOFF_TEST
+extern int mainvar;
+#endif
+
+/* This variable is defined in the shared library, and overridden by
+ the main program. */
+#ifndef XCOFF_TEST
+int overriddenvar = -1;
+#endif
+
+/* This variable is defined in the shared library. */
+int shlibvar1 = 3;
+
+/* This variable is defined by another object in the shared library. */
+extern int shlibvar2;
+
+/* These functions return the values of the above variables as seen in
+ the shared library. */
+
+#ifndef XCOFF_TEST
+int
+shlib_mainvar ()
+{
+ return mainvar;
+}
+#endif
+
+#ifndef XCOFF_TEST
+int
+shlib_overriddenvar ()
+{
+ return overriddenvar;
+}
+#endif
+
+int
+shlib_shlibvar1 ()
+{
+ return shlibvar1;
+}
+
+int
+shlib_shlibvar2 ()
+{
+ return shlibvar2;
+}
+
+/* This function calls a function defined by another object in the
+ shared library. */
+
+extern int shlib_shlibcalled ();
+
+int
+shlib_shlibcall ()
+{
+ return shlib_shlibcalled ();
+}
+
+#ifndef XCOFF_TEST
+/* This function calls a function defined in this object in the shared
+ library. The main program will override the called function. */
+
+extern int shlib_overriddencall2 ();
+
+int
+shlib_shlibcall2 ()
+{
+ return shlib_overriddencall2 ();
+}
+
+int
+shlib_overriddencall2 ()
+{
+ return 7;
+}
+#endif
+
+/* This function calls a function defined by the main program. */
+
+#ifndef XCOFF_TEST
+extern int main_called ();
+
+int
+shlib_maincall ()
+{
+ return main_called ();
+}
+#endif
+
+/* This function is passed a function pointer to shlib_mainvar. It
+ confirms that the pointer compares equally. */
+
+int
+shlib_checkfunptr1 (p)
+ int (*p) ();
+{
+ return p == shlib_shlibvar1;
+}
+
+/* This function is passed a function pointer to main_called. It
+ confirms that the pointer compares equally. */
+
+#ifndef XCOFF_TEST
+int
+shlib_checkfunptr2 (p)
+ int (*p) ();
+{
+ return p == main_called;
+}
+#endif
+
+/* This function returns a pointer to shlib_mainvar. */
+
+int
+(*shlib_getfunptr1 ()) ()
+{
+ return shlib_shlibvar1;
+}
+
+/* This function returns a pointer to main_called. */
+
+#ifndef XCOFF_TEST
+int
+(*shlib_getfunptr2 ()) ()
+{
+ return main_called;
+}
+#endif
+
+/* This function makes sure that constant data and local functions
+ work. */
+
+#ifndef __STDC__
+#define const
+#endif
+
+static int i = 6;
+static const char *str = "Hello, world\n";
+
+int
+shlib_check ()
+{
+ const char *s1, *s2;
+
+ if (i != 6)
+ return 0;
+
+ /* To isolate the test, don't rely on any external functions, such
+ as strcmp. */
+ s1 = "Hello, world\n";
+ s2 = str;
+ while (*s1 != '\0')
+ if (*s1++ != *s2++)
+ return 0;
+ if (*s2 != '\0')
+ return 0;
+
+ if (shlib_shlibvar1 () != 3)
+ return 0;
+
+ return 1;
+}
+
+int
+visibility ()
+{
+ return 2;
+}
+
+#ifdef HIDDEN_NORMAL_TEST
+asm (".hidden visibility_normal");
+
+int
+visibility_normal ()
+{
+ return 2;
+}
+#endif
+
+int
+visibility_checkfunptr ()
+{
+#ifdef HIDDEN_NORMAL_TEST
+ int (*v) () = visibility_normal;
+#else
+ int (*v) () = visibility;
+#endif
+ return (*v) () == 2;
+}
+
+int
+visibility_check ()
+{
+#ifdef HIDDEN_NORMAL_TEST
+ return visibility_normal () == 2;
+#else
+ return visibility () == 2;
+#endif
+}
+
+void *
+visibility_funptr ()
+{
+ return visibility;
+}
+
+#ifdef HIDDEN_TEST
+asm (".hidden visibility");
+#else
+asm (".protected visibility");
+#endif
--- /dev/null
+/* This is part of the shared library ld test. This file becomes part
+ of a shared library. */
+
+/* This variable is defined here, and referenced by another file in
+ the shared library. */
+int shlibvar2 = 4;
+
+/* This function is called by another file in the shared library. */
+
+int
+shlib_shlibcalled ()
+{
+ return 5;
+}
global HOSTING_LIBS
global LIBS
global host_triplet
+ global link_output
set objs "$HOSTING_CRT0 $objects"
set libs "$LIBS $HOSTING_LIBS"
verbose -log "$ld $HOSTING_EMU $flags -o $target $objs $libs"
- catch "exec $ld $HOSTING_EMU $flags -o $target $objs $libs" exec_output
- set exec_output [prune_warnings $exec_output]
- if [string match "" $exec_output] then {
+ catch "exec $ld $HOSTING_EMU $flags -o $target $objs $libs" link_output
+ set exec_output [prune_warnings $link_output]
+ if [string match "" $link_output] then {
return 1
} else {
- verbose -log "$exec_output"
+ verbose -log "$link_output"
return 0
}
}
projects / binutils-gdb.git / commitdiff