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binutils-gdb/ld/testsuite
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Alan Modra f26a32876b Dynamic TLS section symbols 
It is possible to create shared libraries on PowerPC using
-ftls-model=inital-exec or -ftls-model=local-exec.  The first is half
reasonable, getting you a shared library that can't be dlopen'd but
otherwise is reasonable.  The second is quite bad.  Not only do you
lose being able to dlopen, the library also has dynamic text
relocations.  Worse, the TPREL16_LO, TPREL16_HA and other TPREL16
dynamic relocs emitted were wrong, resulting in wrong values being
applied by ld.so.

Using the first TLS section symbol in dynamic relocations for local
TLS symbols doesn't work.  It's wrong because TLS symbols used by TLS
relocs have values relative to the TLS segment, whereas the TLS
section symbols are addresses.  This patch instead uses a symbol index
of zero which is used elsewhere by PowerPC on dynamic TLS relocs.
It's not strictly ABI compliant to use a non-TLS symbol with TLS
relocs but symbol index zero can be interpreted as "no symbol".  Not
using the first TLS section symbol means it doesn't need to be dynamic.

The patch also fixes a further problem with PowerPC32 dynamic TPREL16*
relocs, which shouldn't have the symbol value in the addend as we do
for non-TLS symbols.

bfd/
	* elflink.c (_bfd_elf_omit_section_dynsym_default): Don't keep
	tls_sec.
	(_bfd_elf_init_1_index_section): Prefer not using TLS sections.
	(_bfd_elf_init_2_index_sections): Likewise.
	* elf64-ppc.c (ppc64_elf_relocate_section): When emitting dynamic
	relocations for local TLS symbols, use STN_UNDEF as the relocation
	symbol.
	* elf32-ppc.c (ppc_elf_relocate_section): Likewise, and don't
	leave TLS symbol value in the addend.
ld/
	* testsuite/ld-powerpc/tlsso.r: Update.
	* testsuite/ld-powerpc/tlsso32.g: Update.
	* testsuite/ld-powerpc/tlsso32.r: Update.
	* testsuite/ld-powerpc/tlstocso.r: Update.
	* testsuite/ld-cris/tls-dso-dtpoffd2.d: Update.
	* testsuite/ld-cris/tls-dso-dtpoffd4.d: Update.
	* testsuite/ld-cris/tls-dso-tpoffgotcomm1.d: Update.
	* testsuite/ld-cris/tls-gd-1.d: Update.
	* testsuite/ld-cris/tls-gd-1h.d: Update.
	* testsuite/ld-cris/tls-gd-2.d: Update.
	* testsuite/ld-cris/tls-gd-2h.d: Update.
	* testsuite/ld-cris/tls-ie-10.d: Update.
	* testsuite/ld-cris/tls-ie-11.d: Update.
	* testsuite/ld-cris/tls-ie-8.d: Update.
	* testsuite/ld-cris/tls-ie-9.d: Update.
	* testsuite/ld-cris/tls-js1.d: Update.
	* testsuite/ld-cris/tls-ld-4.d: Update.
	* testsuite/ld-cris/tls-ld-5.d: Update.
	* testsuite/ld-cris/tls-ld-6.d: Update.
	* testsuite/ld-cris/tls-ld-7.d: Update.
	* testsuite/ld-cris/tls-ldgd-14.d: Update.
	* testsuite/ld-cris/tls-ldgd-15.d: Update.
	* testsuite/ld-cris/tls-ldgdx-14.d: Update.
	* testsuite/ld-cris/tls-ldgdx-15.d: Update.
	* testsuite/ld-cris/tls-local-54.d: Update.
	* testsuite/ld-cris/tls-local-60.d: Update.
	* testsuite/ld-cris/tls-local-61.d: Update.
	* testsuite/ld-cris/tls-local-63.d: Update.
	* testsuite/ld-cris/tls-local-64.d: Update.
	* testsuite/ld-cris/tls-ok-30.d: Update.
	* testsuite/ld-cris/tls-ok-32.d: Update.
	* testsuite/ld-cris/tls-ok-34.d: Update.
	* testsuite/ld-mips-elf/tls-multi-got-1.got: Update.
	* testsuite/ld-mips-elf/tls-multi-got-1.r: Update.
	* testsuite/ld-mips-elf/tlsdyn-pie-o32.d: Update.
	* testsuite/ld-mips-elf/tlsdyn-pie-o32.got: Update.
	* testsuite/ld-mips-elf/tlslib-o32-hidden.got: Update.
	* testsuite/ld-mips-elf/tlslib-o32-ver.got: Update.
	* testsuite/ld-mips-elf/tlslib-o32.got: Update.
	* testsuite/ld-s390/tlspic.rd: Update.
	* testsuite/ld-s390/tlspic_64.rd: Update.
	* testsuite/ld-sparc/tlssunnopic32.rd: Update.
	* testsuite/ld-sparc/tlssunnopic64.rd: Update.
	* testsuite/ld-sparc/tlssunpic32.rd: Update.
	* testsuite/ld-sparc/tlssunpic64.rd: Update.
2019-07-13 09:57:50 +09:30
..
config Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-aarch64 Add R_AARCH64_P32_MOVW_PREL_* ELF32 relocs 2019-06-14 12:02:19 +01:00
ld-alpha Fix alpha testsuite regression 2019-06-14 10:23:20 +09:30
ld-arc
ld-arm Ensure that debug information is retained for ARMv8-M security functions. 2019-07-02 12:43:59 +01:00
ld-auto-import Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-avr Fix PR 24571 - Relaxation does not shorten jmp or call to target at pc-relative range boundary 2019-05-21 12:48:06 +05:30
ld-bootstrap
ld-bpf ld: add support for eBPF 2019-05-23 19:34:15 +02:00
ld-cdtest
ld-checks
ld-cris Dynamic TLS section symbols 2019-07-13 09:57:50 +09:30
ld-crx
ld-csky
ld-cygwin Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-d10v
ld-discard Support tcl procedure calls in run_dump_test xfail 2019-05-30 00:52:08 +09:30
ld-elf gas/ELF: don't accumulate .type settings 2019-07-04 10:35:47 +02:00
ld-elfcomm Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-elfvers Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-elfvsb Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-elfweak Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-fastcall
ld-frv
ld-gc Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-h8300
ld-i386 Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-ia64
ld-ifunc Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-libs
ld-linkonce
ld-m68hc11
ld-m68k
ld-mep
ld-metag
ld-mips-elf Dynamic TLS section symbols 2019-07-13 09:57:50 +09:30
ld-misc
ld-mmix
ld-mn10300 Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-msp430-elf
ld-nds32
ld-nios2
ld-or1k
ld-pe Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-pie Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-plugin Don't complain undefined weak dynamic reference 2019-04-26 07:52:09 -07:00
ld-powerpc Dynamic TLS section symbols 2019-07-13 09:57:50 +09:30
ld-pru
ld-riscv-elf
ld-s12z
ld-s390 Dynamic TLS section symbols 2019-07-13 09:57:50 +09:30
ld-scripts Support tcl procedure calls in run_dump_test xfail 2019-05-30 00:52:08 +09:30
ld-selective
ld-sh Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-shared Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-size Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-sparc Dynamic TLS section symbols 2019-07-13 09:57:50 +09:30
ld-spu
ld-srec Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-tic6x
ld-tilegx
ld-tilepro
ld-undefined PicoJava weak undefined symbols 2019-05-06 11:41:28 +09:30
ld-unique Use better test for usable compiler in ld testsuite. 2019-04-24 12:14:56 -07:00
ld-v850
ld-vax-elf
ld-visium
ld-vxworks
ld-x86-64 elf: Remove the property after reporting its removal 2019-06-24 11:08:57 -07:00
ld-xc16x
ld-xstormy16
ld-xtensa
ld-z8k
lib s12z genelf.em 2019-05-30 01:01:42 +09:30
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