binutils-gdb/ld/testsuite
H.J. Lu e2cbcd9156 Support x86-64 TLS code sequences without PLT
We can generate x86-64 TLS code sequences for general and local dynamic
models without PLT, which uses indirect call via GOT:

call *__tls_get_addr@GOTPCREL(%rip)

instead of direct call:

call __tls_get_addr[@PLT]

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, one 0x66 prefix before call instruction is
removed 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
4 0x66 prefixes, instead of 3, before mov instruction in 64-bit and
generate a 5-byte nop, instead of 4-byte, before mov instruction in
32-bit.  Since linker may convert

call *__tls_get_addr@GOTPCREL(%rip)

to

addr32 call __tls_get_addr

when producing static executable, both patterns are recognized.

bfd/

	* elf64-x86-64.c (elf_x86_64_link_hash_entry): Add tls_get_addr.
	(elf_x86_64_link_hash_newfunc): Initialize tls_get_addr to 2.
	(elf_x86_64_check_tls_transition): Check indirect call and
	direct call with the addr32 prefix for general and local dynamic
	models.  Set the tls_get_addr feild.
	(elf_x86_64_convert_load_reloc): Always use addr32 prefix for
	indirect __tls_get_addr call via GOT.
	(elf_x86_64_relocate_section): Handle GD->LE, GD->IE and LD->LE
	transitions with indirect call and direct call with the addr32
	prefix.

ld/

	* testsuite/ld-x86-64/pass.out: New file.
	* testsuite/ld-x86-64/tls-def1.c: Likewise.
	* testsuite/ld-x86-64/tls-gd1.S: Likewise.
	* testsuite/ld-x86-64/tls-ld1.S: Likewise.
	* testsuite/ld-x86-64/tls-main1.c: Likewise.
	* testsuite/ld-x86-64/tls.exp: Likewise.
	* testsuite/ld-x86-64/tlsbin2-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlsbin2.dd: Likewise.
	* testsuite/ld-x86-64/tlsbin2.rd: Likewise.
	* testsuite/ld-x86-64/tlsbin2.sd: Likewise.
	* testsuite/ld-x86-64/tlsbin2.td: Likewise.
	* testsuite/ld-x86-64/tlsbinpic2.s: Likewise.
	* testsuite/ld-x86-64/tlsgd10.dd: Likewise.
	* testsuite/ld-x86-64/tlsgd10.s: Likewise.
	* testsuite/ld-x86-64/tlsgd11.dd: Likewise.
	* testsuite/ld-x86-64/tlsgd11.s: Likewise.
	* testsuite/ld-x86-64/tlsgd12.d: Likewise.
	* testsuite/ld-x86-64/tlsgd12.s: Likewise.
	* testsuite/ld-x86-64/tlsgd13.d: Likewise.
	* testsuite/ld-x86-64/tlsgd13.s: Likewise.
	* testsuite/ld-x86-64/tlsgd14.dd: Likewise.
	* testsuite/ld-x86-64/tlsgd14.s: Likewise.
	* testsuite/ld-x86-64/tlsgd5c.s: Likewise.
	* testsuite/ld-x86-64/tlsgd6c.s: Likewise.
	* testsuite/ld-x86-64/tlsgd9.dd: Likewise.
	* testsuite/ld-x86-64/tlsgd9.s: Likewise.
	* testsuite/ld-x86-64/tlsld4.dd: Likewise.
	* testsuite/ld-x86-64/tlsld4.s: Likewise.
	* testsuite/ld-x86-64/tlsld5.dd: Likewise.
	* testsuite/ld-x86-64/tlsld5.s: Likewise.
	* testsuite/ld-x86-64/tlsld6.dd: Likewise.
	* testsuite/ld-x86-64/tlsld6.s: Likewise.
	* testsuite/ld-x86-64/tlspic2-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlspic2.dd: Likewise.
	* testsuite/ld-x86-64/tlspic2.rd: Likewise.
	* testsuite/ld-x86-64/tlspic2.sd: Likewise.
	* testsuite/ld-x86-64/tlspic2.td: Likewise.
	* testsuite/ld-x86-64/tlspic3.s: Likewise.
	* testsuite/ld-x86-64/tlspie2.s: Likewise.
	* testsuite/ld-x86-64/tlspie2a.d: Likewise.
	* testsuite/ld-x86-64/tlspie2b.d: Likewise.
	* testsuite/ld-x86-64/tlspie2c.d: Likewise.
	* testsuite/ld-x86-64/tlsgd5.dd: Updated.
	* testsuite/ld-x86-64/tlsgd6.dd: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Run libtlspic2.so, tlsbin2,
	tlsgd5b, tlsgd6b, tlsld4, tlsld5, tlsld6, tlsgd9, tlsgd10,
	tlsgd11, tlsgd14, tlsgd12, tlsgd13, tlspie2a, tlspie2b and
	tlspie2c.
2016-06-06 11:07:16 -07:00
..
config Download source only on remote host 2016-04-29 06:52:55 -07:00
ld-aarch64 [AArch64] Also puts value in place for R_AARCH64_RELATIVE 2016-05-03 11:59:37 +01:00
ld-alpha
ld-arc arc/nps400 : New cmem instructions and associated relocation 2016-04-14 17:16:46 +01:00
ld-arm Set dynamic tag VMA and size from dynamic section when possible 2016-05-13 14:34:45 +09:30
ld-auto-import
ld-avr
ld-bootstrap
ld-cdtest
ld-checks
ld-cris
ld-crx
ld-cygwin
ld-d10v
ld-discard
ld-elf [ARC] Fixed-linker-related-testsuite-for-ARC 2016-05-19 15:06:51 +02:00
ld-elfcomm Skip ELF STT_COMMON linker tests if shared libraries are not supported. 2016-05-03 10:44:35 +01:00
ld-elfvers
ld-elfvsb Skip debug sections when estimating distances 2016-04-27 09:13:10 -07:00
ld-elfweak
ld-fastcall
ld-frv
ld-gc Fix some AVR test failures. 2016-05-04 13:03:52 +01:00
ld-h8300
ld-i386 Update x86 linker tests for --disable-x86-relax-relocations 2016-06-03 04:10:11 -07:00
ld-ia64
ld-ifunc Update x86 linker tests for --disable-x86-relax-relocations 2016-06-03 04:10:11 -07:00
ld-libs
ld-linkonce
ld-m68hc11
ld-m68k
ld-mep
ld-metag
ld-mips-elf MIPS/BFD: Correctly handle `bfd_reloc_outofrange' with branches 2016-05-28 10:59:45 +01:00
ld-misc
ld-mmix
ld-mn10300
ld-nds32
ld-nios2
ld-pe
ld-pie
ld-plugin Skip an archive element if not added by linker 2016-05-25 08:41:05 -07:00
ld-powerpc ld --gc-sections fail with __tls_get_addr_opt 2016-05-11 22:40:09 +09:30
ld-s390
ld-scripts Hack crossref tests for powerpc64 2016-05-19 14:07:06 +09:30
ld-selective Fix some AVR test failures. 2016-05-04 13:03:52 +01:00
ld-sh
ld-shared
ld-size
ld-sparc
ld-spu
ld-srec [ARC] Fixed-linker-related-testsuite-for-ARC 2016-05-19 15:06:51 +02:00
ld-tic6x
ld-tilegx
ld-tilepro
ld-undefined
ld-unique LD/ELF: Unify STB_GNU_UNIQUE handling 2016-05-17 12:21:40 +01:00
ld-v850
ld-vax-elf
ld-versados
ld-visium
ld-vxworks
ld-x86-64 Support x86-64 TLS code sequences without PLT 2016-06-06 11:07:16 -07:00
ld-xc16x
ld-xstormy16
ld-xtensa
ld-z8k ld/testsuite/ld-z8k/test-ld.sh: Remove. Checked in by mistake. 2016-06-04 22:39:46 +02:00
lib [ARC] Fixed-linker-related-testsuite-for-ARC 2016-05-19 15:06:51 +02:00
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