Go to file
H.J. Lu 360f74a101 x86-64: Add a test for hidden undefined symbol
Linker should report an error for hidden undefined symbol when building
a shared library without the "recompile with -fPIC" message:

$ cat x.c
extern int foo __attribute__ ((visibility ("hidden")));

int
func (void)
{
  return foo;
}
$ gcc -c -fPIC -O2 x.c
$ objdump -dwr x.o

x.o:     file format elf64-x86-64

Disassembly of section .text:

0000000000000000 <func>:
   0:	8b 05 00 00 00 00    	mov    0x0(%rip),%eax        # 6 <func+0x6>	2: R_X86_64_PC32	foo-0x4
   6:	c3                   	ret
$ ld -shared -o x.so x.o
ld: x.o: in function `func':
x.c:(.text+0x2): undefined reference to `foo'
ld: x.o: relocation R_X86_64_PC32 against undefined hidden symbol `foo' can not be used when making a shared object
ld: final link failed: bad value
$

since -fPIC has been used.

	* testsuite/ld-x86-64/hidden6.d: New file.
	* testsuite/ld-x86-64/hidden6.s: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Run hidden6.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
2024-11-02 05:27:48 +08:00
bfd Automatic date update in version.in 2024-11-01 00:00:55 +00:00
binutils RISC-V: Dump instruction without checking architecture support as usual. 2024-10-31 11:28:45 +08:00
config Revert "Remove LIBINTL_DEP" 2024-06-20 21:15:27 +09:30
contrib Revert "contrib: Add autoregen.py" 2024-09-04 13:38:57 +00:00
cpu Add markers for 2.43 branch/release 2024-07-20 12:43:19 +01:00
elfcpp Add markers for 2.43 branch/release 2024-07-20 12:43:19 +01:00
etc
gas gas/doc/riscv: Fixed misaligned instruction table 2024-10-31 11:45:57 +08:00
gdb Fix compile error due to [[noreturn]] with clang 2024-11-01 11:13:54 -06:00
gdbserver gdbserver: remove unused include in gdbthread.h 2024-10-28 13:58:52 -04:00
gdbsupport Pass current directory to gdb_abspath 2024-10-19 13:18:00 -06:00
gnulib autoupdate: replace obsolete macros AC_CONFIG_HEADER 2024-06-10 08:25:55 +09:30
gold gold: Always resolve non-default weak undefined to 0 2024-08-31 04:28:43 -07:00
gprof Updated Brazilian Portuguese translation for the gprof directory. 2024-09-26 16:11:59 +01:00
gprofng gprofng: fix a memory leak in the mxv-pthreads example 2024-10-17 20:20:23 -07:00
include s390: Add arch15 instructions 2024-10-10 12:09:40 +02:00
ld x86-64: Add a test for hidden undefined symbol 2024-11-02 05:27:48 +08:00
libbacktrace autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
libctf binutils testsuite: canonicalize subtest names in libctf 2024-09-24 21:50:41 -04:00
libdecnumber
libiberty libiberty: sync with gcc 2024-09-04 15:35:42 +01:00
libsframe libsframe: remove runstatedir in Makefile.in 2024-07-10 10:24:45 +02:00
opcodes RISC-V: Dump instruction without checking architecture support as usual. 2024-10-31 11:28:45 +08:00
readline autoupdate: add square brackets around arguments of AC_INIT 2024-06-10 08:25:56 +09:30
sim sim: pru: Fix test case assembly with latest GAS 2024-08-12 23:33:59 +03:00
texinfo
zlib autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
.cvsignore
.editorconfig
.gitattributes
.gitignore .gitignore: ignore .vscode 2024-05-30 12:09:35 +01:00
.pre-commit-config.yaml pre-commit: autoupdate 2024-08-12 13:07:59 -04:00
ar-lib
ChangeLog Add markers for 2.43 branch/release 2024-07-20 12:43:19 +01:00
compile
config-ml.in
config.guess Synchronize config.[sub|guess] with the latest versions from the config project. 2024-07-15 10:22:54 +01:00
config.rpath
config.sub Synchronize config.[sub|guess] with the latest versions from the config project. 2024-07-15 10:22:54 +01:00
configure Disable gprofng build for *musl* 2024-08-26 13:48:29 -07:00
configure.ac Disable gprofng build for *musl* 2024-08-26 13:48:29 -07:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh ltmain.sh: allow more flags at link-time 2024-09-25 19:06:10 +01:00
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS Fix compiling bfd/vms-lib.c for a 32-bit host. 2024-03-18 10:26:16 +00:00
Makefile.def Revert "Pass GUILE down to subdirectories" 2024-03-22 11:07:28 -06:00
Makefile.in Revert "Pass GUILE down to subdirectories" 2024-03-22 11:07:28 -06:00
Makefile.tpl Revert "Pass GUILE down to subdirectories" 2024-03-22 11:07:28 -06:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
README-maintainer-mode
SECURITY.txt
setup.com
src-release.sh Add a target to src-release.sh to crate a binutils release without Gold 2024-10-29 11:50:04 +00:00
symlink-tree
test-driver
ylwrap

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.