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H.J. Lu b287eca391 gold: Support 386 TLS code sequences without PLT
There are extensions to 386 psABI:

https://groups.google.com/forum/#!topic/ia32-abi/awsRSvJOJfs

to call tls_get_addr via GOT:

call *___tls_get_addr@GOT(%reg)

where EBX register isn't required as GOT base.

Since direct call is 4-byte long and indirect call, is 5-byte long, the
extra one byte must be handled properly.

For general dynamic model, 7-byte lea instruction before call
instruction is replaced by 6-byte one to make room for indirect call.
For local dynamic model, we simply use 5-byte indirect call.

TLS linker optimization is updated to recognize new instruction
patterns.  For local dynamic model to local exec model transition,
we generate a 6-byte lea instruction as nop, instead of a 1-byte nop
plus a 4-byte lea instruction.

	PR gold/20308
	* i386.cc (Target_i386::Relocate::relocate): Allow
	R_386_GOT32X relocation against ___tls_get_addr.
	(Target_i386::Relocate::tls_gd_to_ie): Support indirect
	call to __tls_get_addr.
	(Target_i386::Relocate::tls_gd_to_le): Likewise.
	(Target_i386::Relocate::tls_ld_to_le): Likewise.
	* testsuite/Makefile.am (check_PROGRAMS): Add pr20308a_test,
	pr20308b_test, pr20308c_test, pr20308d_test, pr20308e_test.
	(pr20308a_test_SOURCES): New.
	(pr20308a_test_DEPENDENCIES): Likewise.
	(pr20308a_test_CFLAGS): Likewise.
	(pr20308a_test_LDFLAGS): Likewise.
	(pr20308a_test_LDADD): Likewise.
	(pr20308b_test_SOURCES): Likewise.
	(pr20308b_test_DEPENDENCIES): Likewise.
	(pr20308b_test_CFLAGS): Likewise.
	(pr20308b_test_LDFLAGS): Likewise.
	(pr20308b_test_LDADD): Likewise.
	(pr20308c_test_SOURCES): Likewise.
	(pr20308c_test_DEPENDENCIES): Likewise.
	(pr20308c_test_CFLAGS): Likewise.
	(pr20308c_test_LDFLAGS): Likewise.
	(pr20308c_test_LDADD): Likewise.
	(pr20308d_test_SOURCES): Likewise.
	(pr20308d_test_DEPENDENCIES): Likewise.
	(pr20308d_test_CFLAGS): Likewise.
	(pr20308d_test_LDFLAGS): Likewise.
	(pr20308d_test_LDADD): Likewise.
	(pr20308e_test_SOURCES): Likewise.
	(pr20308e_test_DEPENDENCIES): Likewise.
	(pr20308e_test_CFLAGS): Likewise.
	(pr20308e_test_LDFLAGS): Likewise.
	(pr20308e_test_LDADD): Likewise.
	(pr20308a.so): Likewise.
	(pr20308b.so): Likewise.
	(pr20308_gd.o): Likewise.
	(pr20308_ld.o): Likewise.
	(MOSTLYCLEANFILES): Add pr20308a.so pr20308b.so.
	* testsuite/Makefile.in: Regenerated.
	* testsuite/pr20308_def.c: New file.
	* testsuite/pr20308_gd.S: Likewise.
	* testsuite/pr20308_ld.S: Likewise.
	* testsuite/pr20308_main.c: Likewise.
2016-06-29 08:38:58 -07:00
bfd Preserve all mapping symbols in ARM and AArch64 object files. 2016-06-29 11:17:40 +01:00
binutils Relax previous restriction on running binutils ar tests for Alpha targets, allowing the tests to be run for ELF variants. 2016-06-28 14:05:34 +01:00
config
cpu
elfcpp Add support for MIPS .rld_map section. 2016-06-20 12:16:26 -07:00
etc
gas Correct fix for typo 2016-06-29 09:09:03 +01:00
gdb Initialize strtok_r's saveptr to NULL 2016-06-29 20:07:14 +05:30
gold gold: Support 386 TLS code sequences without PLT 2016-06-29 08:38:58 -07:00
gprof
include sparc: make SPARC_OPCODE_ARCH_MAX part of its enum 2016-06-29 07:24:18 -04:00
intl
ld Skip version check for unreferenced and undefined symbol 2016-06-28 08:08:30 -07:00
libdecnumber
libiberty
opcodes [AArch64] Make register indices be full 64-bit values 2016-06-28 09:21:04 +01:00
readline
sim
texinfo
zlib
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ChangeLog [TILEPro] Don't build gdb 2016-06-28 14:16:15 -04:00
compile
config-ml.in
config.guess
config.rpath
config.sub
configure [TILEPro] Don't build gdb 2016-06-28 14:16:15 -04:00
configure.ac [TILEPro] Don't build gdb 2016-06-28 14:16:15 -04:00
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		   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

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the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
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REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.