Commit Graph

898 Commits

Author SHA1 Message Date
Alan Modra
fc7aa874aa Remove sunos.em
Should have been removed with the m68k and sparc aout targets.

	* emultempl/sunos.em: Delete.
2018-04-16 23:23:11 +09:30
Alan Modra
ddb000396c Remove arm-epoc-pe support
bfd/
	* Makefile.am: Remove arm-epoc-pe support.
	* coff-arm.c: Likewise.
	* config.bfd: Likewise.
	* configure.ac: Likewise.
	* targets.c: Likewise.
	* epoc-pe-arm.c: Delete.
	* epoc-pei-arm.c: Delete.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.
binutils/
	* configure.ac: Remove arm-epoc-pe support.
	* dlltool.c: Likewise.
	* configure: Regenerate.
gas/
	* Makefile.am: Remove arm-epoc-pe support.
	* config/tc-arm.h: Likewise.
	* configure.tgt: Likewise.
	* testsuite/gas/all/gas.exp: Likewise.
	* testsuite/gas/arm/local_label_coff.d: Likewise.
	* testsuite/gas/arm/undefined.d: Likewise.
	* testsuite/gas/arm/undefined_coff.d: Likewise.
	* config/te-epoc-pe.h: Delete.
	* Makefile.in: Regenerate.
	* po/POTFILES.in: Regenerate.
ld/
	* Makefile.am: Remove arm-epoc-pe support.
	* configure.tgt: Likewise.
	* emultempl/pe.em: Likewise.
	* pe-dll.c: Likewise.
	* testsuite/ld-scripts/fill.d: Likewise.
	* testsuite/ld-scripts/fill16.d: Likewise.
	* emulparams/arm_epoc_pe.sh: Delete.
	* scripttempl/epocpe.sc: Delete.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.
2018-04-16 20:29:05 +09:30
Alan Modra
dc12032bca Remove m68k-aout and m68k-coff support
include/
	* aout/host.h: Remove m68k-aout and m68k-coff support.
	* aout/hp300hpux.h: Delete.
	* coff/apollo.h: Delete.
	* coff/aux-coff.h: Delete.
	* coff/m68k.h: Delete.
bfd/
	* Makefile.am: Remove m68k-aout and m68k-coff support.
	* aoutf1.h: Likewise.
	* aoutx.h: Likewise.
	* archive.c: Likewise.
	* bfd-in.h: Likewise.
	* bfd.c: Likewise.
	* coffcode.h: Likewise.
	* coffswap.h: Likewise.
	* config.bfd: Likewise.
	* configure.ac: Likewise.
	* configure.host: Likewise.
	* doc/bfd.texinfo: Likewise.
	* doc/bfdint.texi: Likewise.
	* freebsd.h: Likewise.
	* gen-aout.c: Likewise.
	* hpux-core.c: Likewise.
	* libaout.h: Likewise.
	* libbfd-in.h: Likewise.
	* pdp11.c: Likewise.
	* peicode.h: Likewise.
	* riscix.c: Likewise.
	* targets.c: Likewise.
	* aout0.c: Delete.
	* coff-apollo.c: Delete.
	* coff-aux.c: Delete.
	* coff-m68k.c: Delete.
	* coff-svm68k.c: Delete.
	* coff-u68k.c: Delete.
	* hosts/delta68.h: Delete.
	* hosts/hp300bsd.h: Delete.
	* hosts/m68kaux.h: Delete.
	* hosts/news.h: Delete.
	* hp300bsd.c: Delete.
	* hp300hpux.c: Delete.
	* liboasys.h: Delete.
	* m68k4knetbsd.c: Delete.
	* m68klinux.c: Delete.
	* m68knetbsd.c: Delete.
	* oasys.c: Delete.
	* versados.c: Delete.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* configure: Regenerate.
	* libbfd.h: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.
binutils/
	* testsuite/binutils-all/copy-2.d: Remove m68k-aout and m68k-coff
	support.
	* testsuite/binutils-all/copy-3.d: Likewise.
	* testsuite/binutils-all/objcopy.exp: Likewise.
	* testsuite/lib/binutils-common.exp: Likewise.
gas/
	* Makefile.am: Remove m68k-aout and m68k-coff support.
	* config/tc-m68k.c: Likewise.
	* config/tc-m68k.h: Likewise.
	* configure.ac: Likewise.
	* configure.tgt: Likewise.
	* testsuite/gas/all/weakref1u.d: Likewise.
	* testsuite/gas/m68k/all.exp: Likewise.
	* testsuite/gas/m68k/br-isaa.d: Likewise.
	* testsuite/gas/m68k/br-isab.d: Likewise.
	* testsuite/gas/m68k/br-isac.d: Likewise.
	* config/te-psos.h: Delete.
	* config/te-sun3.h: Delete.
	* testsuite/gas/m68k-coff/gas.exp: Delete.
	* testsuite/gas/m68k-coff/p2389.s: Delete.
	* testsuite/gas/m68k-coff/p2389a.s: Delete.
	* testsuite/gas/m68k-coff/p2430.s: Delete.
	* testsuite/gas/m68k-coff/p2430a.s: Delete.
	* testsuite/gas/m68k-coff/t1.s: Delete.
	* testsuite/gas/m68k/p3041.d: Delete.
	* testsuite/gas/m68k/p3041.s: Delete.
	* testsuite/gas/m68k/p3041data.d: Delete.
	* testsuite/gas/m68k/p3041data.s: Delete.
	* testsuite/gas/m68k/p3041pcrel.d: Delete.
	* testsuite/gas/m68k/p3041pcrel.s: Delete.
	* testsuite/gas/m68k/t2.d: Delete.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.
	* po/POTFILES.in: Regenerate.
ld/
	* Makefile.am: Remove m68k-aout and m68k-coff support.
	* configure.tgt: Likewise.
	* emultempl/m68kelf.em: Likewise.
	* ld.texinfo: Likewise.
	* mri.c: Likewise.
	* emulparams/delta68.sh: Delete.
	* emulparams/hp300bsd.sh: Delete.
	* emulparams/hp3hpux.sh: Delete.
	* emulparams/m68k4knbsd.sh: Delete.
	* emulparams/m68kaout.sh: Delete.
	* emulparams/m68kaux.sh: Delete.
	* emulparams/m68kcoff.sh: Delete.
	* emulparams/m68klinux.sh: Delete.
	* emulparams/m68knbsd.sh: Delete.
	* emulparams/m68kpsos.sh: Delete.
	* emulparams/sun3.sh: Delete.
	* emultempl/m68kcoff.em: Delete.
	* scripttempl/delta68.sc: Delete.
	* scripttempl/m68kaux.sc: Delete.
	* scripttempl/m68kcoff.sc: Delete.
	* scripttempl/psos.sc: Delete.
	* testsuite/ld-versados/t1-1.ro: Delete.
	* testsuite/ld-versados/t1-2.ro: Delete.
	* testsuite/ld-versados/t1.ld: Delete.
	* testsuite/ld-versados/t1.ook: Delete.
	* testsuite/ld-versados/t2-1.ro: Delete.
	* testsuite/ld-versados/t2-2.ro: Delete.
	* testsuite/ld-versados/t2-3.ro: Delete.
	* testsuite/ld-versados/t2.ld: Delete.
	* testsuite/ld-versados/t2.ook: Delete.
	* testsuite/ld-versados/versados.exp: Delete.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.
2018-04-16 15:31:36 +09:30
Alan Modra
211dc24b87 Remove sh5 and sh64 support
include/
	* dis-asm.h: Remove sh5 and sh64 support.
bfd/
	* Makefile.am: Remove sh5 and sh64 support.
	* archures.c: Likewise.
	* config.bfd: Likewise.
	* configure.ac: Likewise.
	* cpu-sh.c: Likewise.
	* elf32-sh-relocs.h: Likewise.
	* elf32-sh.c: Likewise.
	* targets.c: Likewise.
	* elf32-sh64-com.c: Delete.
	* elf32-sh64.c: Delete.
	* elf32-sh64.h: Delete.
	* elf64-sh64.c: Delete.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* configure: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.
opcodes/
	* Makefile.am: Remove sh5 and sh64 support.
	* configure.ac: Likewise.
	* disassemble.c: Likewise.
	* disassemble.h: Likewise.
	* sh-dis.c: Likewise.
	* sh64-dis.c: Delete.
	* sh64-opc.c: Delete.
	* sh64-opc.h: Delete.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* po/POTFILES.in: Regenerate.
bintuils/
	* testsuite/binutils-all/objcopy.exp: Remove sh5 and sh64 support.
gas/
	* Makefile.am: Remove sh5 and sh64 support.
	* config/tc-sh.c: Likewise.
	* configure.tgt: Likewise.
	* doc/Makefile.am: Likewise.
	* doc/as.texinfo: Likewise.
	* testsuite/gas/cfi/cfi.exp: Likewise.
	* testsuite/gas/sh/basic.exp: Likewise.
	* config/tc-sh64.c: Delete.
	* config/tc-sh64.h: Delete.
	* doc/c-sh64.texi: Delete.
	* testsuite/gas/sh/sh64/abi-32.d: Delete.
	* testsuite/gas/sh/sh64/abi-32.s: Delete.
	* testsuite/gas/sh/sh64/abi-64.d: Delete.
	* testsuite/gas/sh/sh64/abi-64.s: Delete.
	* testsuite/gas/sh/sh64/basic-1.d: Delete.
	* testsuite/gas/sh/sh64/basic-1.s: Delete.
	* testsuite/gas/sh/sh64/case-1.d: Delete.
	* testsuite/gas/sh/sh64/case-1.s: Delete.
	* testsuite/gas/sh/sh64/case-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/crange1-1.d: Delete.
	* testsuite/gas/sh/sh64/crange1-2.d: Delete.
	* testsuite/gas/sh/sh64/crange1.s: Delete.
	* testsuite/gas/sh/sh64/crange2-1.d: Delete.
	* testsuite/gas/sh/sh64/crange2-2.d: Delete.
	* testsuite/gas/sh/sh64/crange2-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/crange2.s: Delete.
	* testsuite/gas/sh/sh64/crange3-1.d: Delete.
	* testsuite/gas/sh/sh64/crange3.s: Delete.
	* testsuite/gas/sh/sh64/crange4-1.d: Delete.
	* testsuite/gas/sh/sh64/crange4.s: Delete.
	* testsuite/gas/sh/sh64/crange5-1.d: Delete.
	* testsuite/gas/sh/sh64/crange5.s: Delete.
	* testsuite/gas/sh/sh64/creg-1.d: Delete.
	* testsuite/gas/sh/sh64/creg-1.s: Delete.
	* testsuite/gas/sh/sh64/creg-2.d: Delete.
	* testsuite/gas/sh/sh64/creg-2.s: Delete.
	* testsuite/gas/sh/sh64/datal-1.s: Delete.
	* testsuite/gas/sh/sh64/datal-2.d: Delete.
	* testsuite/gas/sh/sh64/datal-2.s: Delete.
	* testsuite/gas/sh/sh64/datal-3.s: Delete.
	* testsuite/gas/sh/sh64/datal32-1.d: Delete.
	* testsuite/gas/sh/sh64/datal32-3.d: Delete.
	* testsuite/gas/sh/sh64/datal64-1.d: Delete.
	* testsuite/gas/sh/sh64/datal64-3.d: Delete.
	* testsuite/gas/sh/sh64/eh-1.d: Delete.
	* testsuite/gas/sh/sh64/eh-1.s: Delete.
	* testsuite/gas/sh/sh64/endian-1.d: Delete.
	* testsuite/gas/sh/sh64/endian-1.s: Delete.
	* testsuite/gas/sh/sh64/endian-2.d: Delete.
	* testsuite/gas/sh/sh64/endian-2.s: Delete.
	* testsuite/gas/sh/sh64/err-1.s: Delete.
	* testsuite/gas/sh/sh64/err-2.s: Delete.
	* testsuite/gas/sh/sh64/err-3.s: Delete.
	* testsuite/gas/sh/sh64/err-4.s: Delete.
	* testsuite/gas/sh/sh64/err-abi-32.s: Delete.
	* testsuite/gas/sh/sh64/err-abi-64.s: Delete.
	* testsuite/gas/sh/sh64/err-dsp.s: Delete.
	* testsuite/gas/sh/sh64/err-movi-noexp-1.s: Delete.
	* testsuite/gas/sh/sh64/err-noexp-cmd1.s: Delete.
	* testsuite/gas/sh/sh64/err-pt-1.s: Delete.
	* testsuite/gas/sh/sh64/err-pt32-cmd1.s: Delete.
	* testsuite/gas/sh/sh64/err-pt32-cmd2.s: Delete.
	* testsuite/gas/sh/sh64/err-pt32-cmd3.s: Delete.
	* testsuite/gas/sh/sh64/err-ptb-1.s: Delete.
	* testsuite/gas/sh/sh64/err-ptb-2.s: Delete.
	* testsuite/gas/sh/sh64/err.exp: Delete.
	* testsuite/gas/sh/sh64/immexpr1.s: Delete.
	* testsuite/gas/sh/sh64/immexpr2.s: Delete.
	* testsuite/gas/sh/sh64/immexpr32-1.d: Delete.
	* testsuite/gas/sh/sh64/immexpr32-2.d: Delete.
	* testsuite/gas/sh/sh64/immexpr64-1.d: Delete.
	* testsuite/gas/sh/sh64/immexpr64-2.d: Delete.
	* testsuite/gas/sh/sh64/lineno.d: Delete.
	* testsuite/gas/sh/sh64/lineno.s: Delete.
	* testsuite/gas/sh/sh64/localcom-1.d: Delete.
	* testsuite/gas/sh/sh64/localcom-1.s: Delete.
	* testsuite/gas/sh/sh64/mix-1.d: Delete.
	* testsuite/gas/sh/sh64/mix-1.s: Delete.
	* testsuite/gas/sh/sh64/mix-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/movi-1.s: Delete.
	* testsuite/gas/sh/sh64/movi-2.s: Delete.
	* testsuite/gas/sh/sh64/movi-3.d: Delete.
	* testsuite/gas/sh/sh64/movi-3.s: Delete.
	* testsuite/gas/sh/sh64/movi32-1.d: Delete.
	* testsuite/gas/sh/sh64/movi32-2.d: Delete.
	* testsuite/gas/sh/sh64/movi32-noexp-2.d: Delete.
	* testsuite/gas/sh/sh64/movi64-1.d: Delete.
	* testsuite/gas/sh/sh64/movi64-2.d: Delete.
	* testsuite/gas/sh/sh64/movi64-2.s: Delete.
	* testsuite/gas/sh/sh64/movi64-3.d: Delete.
	* testsuite/gas/sh/sh64/movi64-noexp-2.d: Delete.
	* testsuite/gas/sh/sh64/pt-1.d: Delete.
	* testsuite/gas/sh/sh64/pt-1.s: Delete.
	* testsuite/gas/sh/sh64/pt-2.s: Delete.
	* testsuite/gas/sh/sh64/pt-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/pt32-1.d: Delete.
	* testsuite/gas/sh/sh64/pt32-noexp-2.d: Delete.
	* testsuite/gas/sh/sh64/pt64-1.d: Delete.
	* testsuite/gas/sh/sh64/pt64-32-1.d: Delete.
	* testsuite/gas/sh/sh64/pt64-32-2.d: Delete.
	* testsuite/gas/sh/sh64/pt64-noexp-2.d: Delete.
	* testsuite/gas/sh/sh64/ptc-1.s: Delete.
	* testsuite/gas/sh/sh64/ptc32-1.d: Delete.
	* testsuite/gas/sh/sh64/ptc32-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/ptc64-1.d: Delete.
	* testsuite/gas/sh/sh64/ptc64-32-1.d: Delete.
	* testsuite/gas/sh/sh64/ptc64-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/ptext-1.s: Delete.
	* testsuite/gas/sh/sh64/ptext32-1.d: Delete.
	* testsuite/gas/sh/sh64/ptext32-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/ptext64-1.d: Delete.
	* testsuite/gas/sh/sh64/ptext64-32-1.d: Delete.
	* testsuite/gas/sh/sh64/ptext64-noexp-1.d: Delete.
	* testsuite/gas/sh/sh64/rel-1.s: Delete.
	* testsuite/gas/sh/sh64/rel-2.s: Delete.
	* testsuite/gas/sh/sh64/rel-3.s: Delete.
	* testsuite/gas/sh/sh64/rel-4.s: Delete.
	* testsuite/gas/sh/sh64/rel-5.s: Delete.
	* testsuite/gas/sh/sh64/rel32-1.d: Delete.
	* testsuite/gas/sh/sh64/rel32-2.d: Delete.
	* testsuite/gas/sh/sh64/rel32-3.d: Delete.
	* testsuite/gas/sh/sh64/rel32-4.d: Delete.
	* testsuite/gas/sh/sh64/rel32-5.d: Delete.
	* testsuite/gas/sh/sh64/rel64-1.d: Delete.
	* testsuite/gas/sh/sh64/rel64-2.d: Delete.
	* testsuite/gas/sh/sh64/rel64-3.d: Delete.
	* testsuite/gas/sh/sh64/rel64-4.d: Delete.
	* testsuite/gas/sh/sh64/rel64-5.d: Delete.
	* testsuite/gas/sh/sh64/relax-1.d: Delete.
	* testsuite/gas/sh/sh64/relax-1.s: Delete.
	* testsuite/gas/sh/sh64/relax-2.d: Delete.
	* testsuite/gas/sh/sh64/relax-2.s: Delete.
	* testsuite/gas/sh/sh64/relax-3.d: Delete.
	* testsuite/gas/sh/sh64/relax-3.s: Delete.
	* testsuite/gas/sh/sh64/sh64.exp: Delete.
	* testsuite/gas/sh/sh64/shift-1.s: Delete.
	* testsuite/gas/sh/sh64/shift-2.s: Delete.
	* testsuite/gas/sh/sh64/shift-3.s: Delete.
	* testsuite/gas/sh/sh64/shift32-1.d: Delete.
	* testsuite/gas/sh/sh64/shift32-3.d: Delete.
	* testsuite/gas/sh/sh64/shift32-noexp-3.d: Delete.
	* testsuite/gas/sh/sh64/shift64-1.d: Delete.
	* testsuite/gas/sh/sh64/shift64-2.d: Delete.
	* testsuite/gas/sh/sh64/shift64-3.d: Delete.
	* testsuite/gas/sh/sh64/shift64-noexp-3.d: Delete.
	* testsuite/gas/sh/sh64/syntax-1.d: Delete.
	* testsuite/gas/sh/sh64/syntax-1.s: Delete.
	* testsuite/gas/sh/sh64/syntax-2.d: Delete.
	* testsuite/gas/sh/sh64/syntax-2.s: Delete.
	* testsuite/gas/sh/sh64/ua-1.s: Delete.
	* testsuite/gas/sh/sh64/ua32-1.d: Delete.
	* testsuite/gas/sh/sh64/ua64-1.d: Delete.
	* Makefile.in: Regenerate.
	* doc/Makefile.in: Regenerate.
	* po/POTFILES.in: Regenerate.
ld/
	* Makefile.am: Remove sh5 and sh64 support.
	* configure.tgt: Likewise.
	* ldlang.c: Likewise.
	* testsuite/ld-elfcomm/elfcomm.exp: Likewise.
	* testsuite/ld-gc/gc.exp: Likewise.
	* testsuite/ld-gc/pr13683.d: Likewise.
	* testsuite/ld-scripts/crossref.exp: Likewise.
	* testsuite/ld-selective/selective.exp: Likewise.
	* testsuite/ld-sh/ld-r-1.d: Likewise.
	* testsuite/ld-sh/rd-sh.exp: Likewise.
	* testsuite/ld-sh/sh.exp: Likewise.
	* testsuite/ld-srec/srec.exp: Likewise.
	* testsuite/ld-undefined/undefined.exp: Likewise.
	* emulparams/shelf32.sh: Delete.
	* emulparams/shelf32_linux.sh: Delete.
	* emulparams/shelf32_nbsd.sh: Delete.
	* emulparams/shelf64.sh: Delete.
	* emulparams/shelf64_nbsd.sh: Delete.
	* emulparams/shlelf32.sh: Delete.
	* emulparams/shlelf32_linux.sh: Delete.
	* emulparams/shlelf32_nbsd.sh: Delete.
	* emulparams/shlelf64.sh: Delete.
	* emulparams/shlelf64_nbsd.sh: Delete.
	* emultempl/sh64elf.em: Delete.
	* testsuite/ld-sh/sh64/abi32.sd: Delete.
	* testsuite/ld-sh/sh64/abi32.xd: Delete.
	* testsuite/ld-sh/sh64/abi64.sd: Delete.
	* testsuite/ld-sh/sh64/abi64.xd: Delete.
	* testsuite/ld-sh/sh64/abixx-noexp.sd: Delete.
	* testsuite/ld-sh/sh64/cmpct1.sd: Delete.
	* testsuite/ld-sh/sh64/cmpct1.xd: Delete.
	* testsuite/ld-sh/sh64/crange-1.s: Delete.
	* testsuite/ld-sh/sh64/crange-2a.s: Delete.
	* testsuite/ld-sh/sh64/crange-2b.s: Delete.
	* testsuite/ld-sh/sh64/crange-2c.s: Delete.
	* testsuite/ld-sh/sh64/crange-2d.s: Delete.
	* testsuite/ld-sh/sh64/crange-2e.s: Delete.
	* testsuite/ld-sh/sh64/crange-2f.s: Delete.
	* testsuite/ld-sh/sh64/crange-2g.s: Delete.
	* testsuite/ld-sh/sh64/crange-2h.s: Delete.
	* testsuite/ld-sh/sh64/crange-2i.s: Delete.
	* testsuite/ld-sh/sh64/crange1.rd: Delete.
	* testsuite/ld-sh/sh64/crange2.rd: Delete.
	* testsuite/ld-sh/sh64/crange3-cmpct.rd: Delete.
	* testsuite/ld-sh/sh64/crange3-media.rd: Delete.
	* testsuite/ld-sh/sh64/crange3.dd: Delete.
	* testsuite/ld-sh/sh64/crange3.rd: Delete.
	* testsuite/ld-sh/sh64/crangerel1.rd: Delete.
	* testsuite/ld-sh/sh64/crangerel2.rd: Delete.
	* testsuite/ld-sh/sh64/dlsection-1.s: Delete.
	* testsuite/ld-sh/sh64/dlsection.sd: Delete.
	* testsuite/ld-sh/sh64/endian.dbd: Delete.
	* testsuite/ld-sh/sh64/endian.dld: Delete.
	* testsuite/ld-sh/sh64/endian.ld: Delete.
	* testsuite/ld-sh/sh64/endian.s: Delete.
	* testsuite/ld-sh/sh64/endian.sbd: Delete.
	* testsuite/ld-sh/sh64/endian.sld: Delete.
	* testsuite/ld-sh/sh64/gotplt.d: Delete.
	* testsuite/ld-sh/sh64/gotplt.map: Delete.
	* testsuite/ld-sh/sh64/gotplt.s: Delete.
	* testsuite/ld-sh/sh64/init-cmpct.d: Delete.
	* testsuite/ld-sh/sh64/init-media.d: Delete.
	* testsuite/ld-sh/sh64/init.s: Delete.
	* testsuite/ld-sh/sh64/init64.d: Delete.
	* testsuite/ld-sh/sh64/mix1-noexp.sd: Delete.
	* testsuite/ld-sh/sh64/mix1.sd: Delete.
	* testsuite/ld-sh/sh64/mix1.xd: Delete.
	* testsuite/ld-sh/sh64/mix2-noexp.sd: Delete.
	* testsuite/ld-sh/sh64/mix2.sd: Delete.
	* testsuite/ld-sh/sh64/mix2.xd: Delete.
	* testsuite/ld-sh/sh64/rd-sh64.exp: Delete.
	* testsuite/ld-sh/sh64/rel-1.s: Delete.
	* testsuite/ld-sh/sh64/rel-2.s: Delete.
	* testsuite/ld-sh/sh64/rel32.xd: Delete.
	* testsuite/ld-sh/sh64/rel64.xd: Delete.
	* testsuite/ld-sh/sh64/relax.exp: Delete.
	* testsuite/ld-sh/sh64/relax1.s: Delete.
	* testsuite/ld-sh/sh64/relax2.s: Delete.
	* testsuite/ld-sh/sh64/relax3.s: Delete.
	* testsuite/ld-sh/sh64/relax4.s: Delete.
	* testsuite/ld-sh/sh64/reldl-1.s: Delete.
	* testsuite/ld-sh/sh64/reldl-2.s: Delete.
	* testsuite/ld-sh/sh64/reldl32.rd: Delete.
	* testsuite/ld-sh/sh64/reldl64.rd: Delete.
	* testsuite/ld-sh/sh64/relfail.exp: Delete.
	* testsuite/ld-sh/sh64/relfail.s: Delete.
	* testsuite/ld-sh/sh64/sh64-1.s: Delete.
	* testsuite/ld-sh/sh64/sh64-2.s: Delete.
	* testsuite/ld-sh/sh64/sh64.exp: Delete.
	* testsuite/ld-sh/sh64/shcmp-1.s: Delete.
	* testsuite/ld-sh/sh64/shdl-1.s: Delete.
	* testsuite/ld-sh/sh64/shdl-2.s: Delete.
	* testsuite/ld-sh/sh64/shdl32.xd: Delete.
	* testsuite/ld-sh/sh64/shdl64.sd: Delete.
	* testsuite/ld-sh/sh64/shdl64.xd: Delete.
	* testsuite/ld-sh/sh64/shmix-1.s: Delete.
	* testsuite/ld-sh/sh64/shmix-2.s: Delete.
	* testsuite/ld-sh/sh64/shmix-3.s: Delete.
	* testsuite/ld-sh/sh64/stobin-0-dso.d: Delete.
	* testsuite/ld-sh/sh64/stobin-1.d: Delete.
	* testsuite/ld-sh/sh64/stobin.s: Delete.
	* testsuite/ld-sh/sh64/stolib.s: Delete.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.
2018-04-16 15:29:39 +09:30
Alan Modra
a8eb42a8b7 Remove i860, i960, bout and aout-adobe targets
Plus remove a few leftovers from the 29k support.

include/
	* aout/adobe.h: Delete.
	* aout/reloc.h: Delete.
	* coff/i860.h: Delete.
	* coff/i960.h: Delete.
	* elf/i860.h: Delete.
	* elf/i960.h: Delete.
	* opcode/i860.h: Delete.
	* opcode/i960.h: Delete.
	* aout/aout64.h (enum reloc_type): Trim off 29k and other unused values.
	* aout/ar.h (ARMAGB): Remove.
	* coff/internal.h (struct internal_aouthdr, struct internal_scnhdr,
	union internal_auxent): Remove i960 support.
bfd/
	* aout-adobe.c: Delete.
	* bout.c: Delete.
	* coff-i860.c: Delete.
	* coff-i960.c: Delete.
	* cpu-i860.c: Delete.
	* cpu-i960.c: Delete.
	* elf32-i860.c: Delete.
	* elf32-i960.c: Delete.
	* hosts/i860mach3.h: Delete.
	* Makefile.am: Remove i860, i960, bout, and adobe support.
	* archures.c: Remove i860 and i960 support.
	* coffcode.h: Likewise.
	* reloc.c: Likewise.
	* aoutx.h: Comment updates.
	* archive.c: Remove BOUT and i960 support.
	* bfd.c: Remove BOUT support.
	* coffswap.h: Remove i960 support.
	* config.bfd: Remove i860, i960 and adobe targets.
	* configure.ac: Remove adode, bout, i860, i960, icoff targets.
	* targets.c: Likewise.
	* ieee.c: Remove i960 support.
	* mach-o.c: Remove i860 support.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* configure: Regenerate.
	* libbfd.h: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.
opcodes/
	* opcodes/i860-dis.c: Delete.
	* opcodes/i960-dis.c: Delete.
	* Makefile.am: Remove i860 and i960 support.
	* configure.ac: Likewise.
	* disassemble.c: Likewise.
	* disassemble.h: Likewise.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* po/POTFILES.in: Regenerate.
binutils/
	* ieee.c: Remove i960 support.
	* od-macho.c: Remove i860 support.
	* readelf.c: Remove i860 and i960 support.
	* testsuite/binutils-all/objcopy.exp: Likewise.
	* testsuite/binutils-all/objdump.exp: Likewise.
	* testsuite/lib/binutils-common.exp: Likewise.
gas/
	* config/aout_gnu.h: Delete.
	* config/tc-i860.c: Delete.
	* config/tc-i860.h: Delete.
	* config/tc-i960.c: Delete.
	* config/tc-i960.h: Delete.
	* doc/c-i860.texi: Delete.
	* doc/c-i960.texi: Delete.
	* testsuite/gas/i860/README.i860: Delete.
	* testsuite/gas/i860/bitwise.d: Delete.
	* testsuite/gas/i860/bitwise.s: Delete.
	* testsuite/gas/i860/branch.d: Delete.
	* testsuite/gas/i860/branch.s: Delete.
	* testsuite/gas/i860/bte.d: Delete.
	* testsuite/gas/i860/bte.s: Delete.
	* testsuite/gas/i860/dir-align01.d: Delete.
	* testsuite/gas/i860/dir-align01.s: Delete.
	* testsuite/gas/i860/dir-intel01.d: Delete.
	* testsuite/gas/i860/dir-intel01.s: Delete.
	* testsuite/gas/i860/dir-intel02.d: Delete.
	* testsuite/gas/i860/dir-intel02.s: Delete.
	* testsuite/gas/i860/dir-intel03-err.l: Delete.
	* testsuite/gas/i860/dir-intel03-err.s: Delete.
	* testsuite/gas/i860/dual01.d: Delete.
	* testsuite/gas/i860/dual01.s: Delete.
	* testsuite/gas/i860/dual02-err.l: Delete.
	* testsuite/gas/i860/dual02-err.s: Delete.
	* testsuite/gas/i860/dual03.d: Delete.
	* testsuite/gas/i860/dual03.s: Delete.
	* testsuite/gas/i860/fldst01.d: Delete.
	* testsuite/gas/i860/fldst01.s: Delete.
	* testsuite/gas/i860/fldst02.d: Delete.
	* testsuite/gas/i860/fldst02.s: Delete.
	* testsuite/gas/i860/fldst03.d: Delete.
	* testsuite/gas/i860/fldst03.s: Delete.
	* testsuite/gas/i860/fldst04.d: Delete.
	* testsuite/gas/i860/fldst04.s: Delete.
	* testsuite/gas/i860/fldst05.d: Delete.
	* testsuite/gas/i860/fldst05.s: Delete.
	* testsuite/gas/i860/fldst06.d: Delete.
	* testsuite/gas/i860/fldst06.s: Delete.
	* testsuite/gas/i860/fldst07.d: Delete.
	* testsuite/gas/i860/fldst07.s: Delete.
	* testsuite/gas/i860/fldst08.d: Delete.
	* testsuite/gas/i860/fldst08.s: Delete.
	* testsuite/gas/i860/float01.d: Delete.
	* testsuite/gas/i860/float01.s: Delete.
	* testsuite/gas/i860/float02.d: Delete.
	* testsuite/gas/i860/float02.s: Delete.
	* testsuite/gas/i860/float03.d: Delete.
	* testsuite/gas/i860/float03.s: Delete.
	* testsuite/gas/i860/float04.d: Delete.
	* testsuite/gas/i860/float04.s: Delete.
	* testsuite/gas/i860/form.d: Delete.
	* testsuite/gas/i860/form.s: Delete.
	* testsuite/gas/i860/i860.exp: Delete.
	* testsuite/gas/i860/iarith.d: Delete.
	* testsuite/gas/i860/iarith.s: Delete.
	* testsuite/gas/i860/ldst01.d: Delete.
	* testsuite/gas/i860/ldst01.s: Delete.
	* testsuite/gas/i860/ldst02.d: Delete.
	* testsuite/gas/i860/ldst02.s: Delete.
	* testsuite/gas/i860/ldst03.d: Delete.
	* testsuite/gas/i860/ldst03.s: Delete.
	* testsuite/gas/i860/ldst04.d: Delete.
	* testsuite/gas/i860/ldst04.s: Delete.
	* testsuite/gas/i860/ldst05.d: Delete.
	* testsuite/gas/i860/ldst05.s: Delete.
	* testsuite/gas/i860/ldst06.d: Delete.
	* testsuite/gas/i860/ldst06.s: Delete.
	* testsuite/gas/i860/pfam.d: Delete.
	* testsuite/gas/i860/pfam.s: Delete.
	* testsuite/gas/i860/pfmam.d: Delete.
	* testsuite/gas/i860/pfmam.s: Delete.
	* testsuite/gas/i860/pfmsm.d: Delete.
	* testsuite/gas/i860/pfmsm.s: Delete.
	* testsuite/gas/i860/pfsm.d: Delete.
	* testsuite/gas/i860/pfsm.s: Delete.
	* testsuite/gas/i860/pseudo-ops01.d: Delete.
	* testsuite/gas/i860/pseudo-ops01.s: Delete.
	* testsuite/gas/i860/regress01.d: Delete.
	* testsuite/gas/i860/regress01.s: Delete.
	* testsuite/gas/i860/shift.d: Delete.
	* testsuite/gas/i860/shift.s: Delete.
	* testsuite/gas/i860/simd.d: Delete.
	* testsuite/gas/i860/simd.s: Delete.
	* testsuite/gas/i860/system.d: Delete.
	* testsuite/gas/i860/system.s: Delete.
	* testsuite/gas/i860/xp.d: Delete.
	* testsuite/gas/i860/xp.s: Delete.
	* Makefile.am: Remove i860 and i960 support.
	* configure.tgt: Likewise.
	* doc/Makefile.am: Likewise.
	* doc/all.texi: Likewise.
	* testsuite/gas/all/gas.exp
	* config/obj-coff.h: Remove i960 support.
	* doc/internals.texi: Likewise.
	* expr.c: Likewise.
	* read.c: Likewise.
	* write.c: Likewise.
	* write.h: Likewise.
	* testsuite/gas/lns/lns.exp: Likewise.
	* testsuite/gas/symver/symver.exp: Likewise.
	* config/tc-m68k.c: Remove BOUT support.
	* config/tc-score.c: Likewise.
	* config/tc-score7.c: Likewise.
	* config/tc-sparc.c: Likewise.
	* symbols.c: Likewise.
	* doc/h8.texi: Likewise.
	* configure.ac: Remove BOUT and i860 support.
	* doc/as.texinfo: Remove BOUT, i860 and i960 support
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* po/POTFILES.in: Regenerate.
ld/
	* emulparams/coff_i860.sh: Delete.
	* emulparams/elf32_i860.sh: Delete.
	* emulparams/elf32_i960.sh: Delete.
	* emulparams/gld960.sh: Delete.
	* emulparams/gld960coff.sh: Delete.
	* emulparams/lnk960.sh: Delete.
	* emultempl/gld960.em: Delete.
	* emultempl/gld960c.em: Delete.
	* emultempl/lnk960.em: Delete.
	* scripttempl/i860coff.sc: Delete.
	* scripttempl/i960.sc: Delete.
	* ld.texinfo: Remove i960 support.
	* Makefile.am: Remove i860 and i960 support.
	* configure.tgt: Likewise.
	* testsuite/ld-discard/extern.d: Likewise.
	* testsuite/ld-discard/start.d: Likewise.
	* testsuite/ld-discard/static.d: Likewise.
	* testsuite/ld-elf/compressed1d.d: Likewise.
	* testsuite/ld-elf/group1.d: Likewise.
	* testsuite/ld-elf/group3b.d: Likewise.
	* testsuite/ld-elf/group8a.d: Likewise.
	* testsuite/ld-elf/group8b.d: Likewise.
	* testsuite/ld-elf/group9a.d: Likewise.
	* testsuite/ld-elf/group9b.d: Likewise.
	* testsuite/ld-elf/linkonce2.d: Likewise.
	* testsuite/ld-elf/merge.d: Likewise.
	* testsuite/ld-elf/merge2.d: Likewise.
	* testsuite/ld-elf/merge3.d: Likewise.
	* testsuite/ld-elf/orphan-10.d: Likewise.
	* testsuite/ld-elf/orphan-11.d: Likewise.
	* testsuite/ld-elf/orphan-12.d: Likewise.
	* testsuite/ld-elf/orphan-9.d: Likewise.
	* testsuite/ld-elf/orphan-region.d: Likewise.
	* testsuite/ld-elf/orphan.d: Likewise.
	* testsuite/ld-elf/orphan3.d: Likewise.
	* testsuite/ld-elf/pr12851.d: Likewise.
	* testsuite/ld-elf/pr12975.d: Likewise.
	* testsuite/ld-elf/pr13177.d: Likewise.
	* testsuite/ld-elf/pr13195.d: Likewise.
	* testsuite/ld-elf/pr17550a.d: Likewise.
	* testsuite/ld-elf/pr17550b.d: Likewise.
	* testsuite/ld-elf/pr17550c.d: Likewise.
	* testsuite/ld-elf/pr17550d.d: Likewise.
	* testsuite/ld-elf/pr17615.d: Likewise.
	* testsuite/ld-elf/pr20528a.d: Likewise.
	* testsuite/ld-elf/pr20528b.d: Likewise.
	* testsuite/ld-elf/pr21562a.d: Likewise.
	* testsuite/ld-elf/pr21562b.d: Likewise.
	* testsuite/ld-elf/pr21562c.d: Likewise.
	* testsuite/ld-elf/pr21562d.d: Likewise.
	* testsuite/ld-elf/pr21562i.d: Likewise.
	* testsuite/ld-elf/pr21562j.d: Likewise.
	* testsuite/ld-elf/pr21562k.d: Likewise.
	* testsuite/ld-elf/pr21562l.d: Likewise.
	* testsuite/ld-elf/pr21562m.d: Likewise.
	* testsuite/ld-elf/pr21562n.d: Likewise.
	* testsuite/ld-elf/pr22677.d: Likewise.
	* testsuite/ld-elf/pr22836-1a.d: Likewise.
	* testsuite/ld-elf/pr22836-1b.d: Likewise.
	* testsuite/ld-elf/pr349.d: Likewise.
	* testsuite/ld-elf/sec-to-seg.exp: Likewise.
	* testsuite/ld-elf/sec64k.exp: Likewise.
	* testsuite/ld-elf/warn1.d: Likewise.
	* testsuite/ld-elf/warn2.d: Likewise.
	* testsuite/ld-elf/warn3.d: Likewise.
	* testsuite/lib/ld-lib.exp: Likewise.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.
2018-04-11 21:49:30 +09:30
Alan Modra
3e04d7655b Inline PLT call optimization
This patch adds the analysis part of PLT call optimization, enabling
the code added with the previous patch that actually performs the
optimization.

Gold support is not available yet.

bfd/
	* elf64-ppc.c (struct _ppc64_elf_section_data): Add has_pltcall field.
	(struct ppc_link_hash_table): Add can_convert_all_inline_plt.
	(ppc64_elf_check_relocs): Set has_pltcall.
	(ppc64_elf_adjust_dynamic_symbol): Discard some PLT entries.
	(ppc64_elf_inline_plt): New function.
	(ppc64_elf_size_dynamic_sections): Discard some PLT entries for locals.
	* elf64-ppc.h (ppc64_elf_inline_plt): Declare.
	* elf32-ppc.c (has_pltcall): Define.
	(struct ppc_elf_link_hash_table): Add can_convert_all_inline_plt.
	(ppc_elf_check_relocs): Set has_pltcall.
	(ppc_elf_inline_plt): New function.
	(ppc_elf_adjust_dynamic_symbol): Discard some PLT entries.
	(ppc_elf_size_dynamic_sections): Likewise.
	* elf32-ppc.h (ppc_elf_inline_plt): Declare.
ld/
	* emultempl/ppc64elf.em (no_inline_plt): New var.
	(ppc_before_allocation): Call ppc64_elf_inline_plt.
	(enum ppc64_opt): Add OPTION_NO_INLINE_OPT.
	(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS,
	PARSE_AND_LIST_ARGS_CASES): Handle --no-inline-optimize.
	* emultemps/ppc32elf.em (no_inline_opt): New var.
	(prelim_size_sections): New function, extracted from..
	(ppc_before_allocation): ..here.  Call ppc_elf_inline_plt.
	(enum ppc32_opt): Add OPTION_NO_INLINE_OPT.
	(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS,
	PARSE_AND_LIST_ARGS_CASES): Handle --no-inline-optimize.
2018-04-09 17:40:54 +09:30
Alan Modra
49c09209d0 Rearrange PLT reloc output on powerpc
The current scheme where we output PLT relocs for global symbols in
finish_dynamic_symbol, and PLT relocs for local symbols when
outputting stubs does not work if PLT entries are to be used for
inline PLT sequences against non-dynamic globals or local symbols.

bfd/
	* elf64-ppc.c (ppc_build_one_stub): Move output of PLT relocs
	for local symbols to..
	(write_plt_relocs_for_local_syms): ..here.  New function.
	(ppc64_elf_finish_dynamic_symbol): Move output of PLT relocs for
	global symbols to..
	(build_global_entry_stubs_and_plt): ..here.  Rename from
	build_global_entry_stubs.
	(ppc64_elf_build_stubs): Always call build_global_entry_stubs_and_plt.
	Call write_plt_relocs_for_local_syms.
	* elf32-ppc.c (get_sym_h): New function.
	(ppc_elf_relax_section): Use get_sym_h.
	(ppc_elf_relocate_section): Move output of PLT relocs and glink
	stubs for local symbols to..
	(ppc_finish_symbols): ..here.  New function.
	(ppc_elf_finish_dynamic_symbol): Move output of PLT relocs for
	global syms to..
	(write_global_sym_plt): ..here.  New function.
	* elf32-ppc.h (ppc_elf_modify_segment_map): Delete attribute.
	(ppc_finish_symbols): Declare.
ld/
	* ppc32elf.em (ppc_finish): Call ppc_finish_symbols.
2018-04-09 17:02:19 +09:30
Eric Botcazou
317ff0084b Speed up direct linking with DLLs on Windows (1/2).
This patch deals with the auto-import feature.  There are 2 versions
of this feature: the original one, which was piggybacked on the OS
loader with an optional help from the runtime (--enable-auto-import
--enable-runtime-pseudo-reloc-v1) and is still the one mostly
documented in the sources and manual; the enhanced one by Kai Tietz,
which is entirely piggybacked on the runtime (--enable-auto-import
--enable-runtime-pseudo-reloc-v2) and is the default for Mingw and
Cygwin nowadays.

The implementation is inefficient because of pe[p]_find_data_imports:
for every undefined symbol, the function walks the entire set of
relocations for all the input files and does a direct name comparison
for each of them.

This is easily fixable by using a hash-based map for v1 and a simple
hash table for v2.  This patch leaves v1 alone and only changes v2.
It also factors out pe[p]_find_data_imports into a common function,
removes old cruft left and right, and attempts to better separate
the implementations of v1 and v2 in the code.

ld/
	* emultempl/pe.em (U_SIZE): Delete.
	(pe_data_import_dll): Likewise.
	(make_import_fixup): Return void, take 4th parameter and pass it down
	in call to pe_create_import_fixup.
	(pe_find_data_imports): Move to...
	(gld_${EMULATION_NAME}_after_open): Run the stdcall fixup pass after
	the auto-import pass and add a guard before running the latter.
	* emultempl/pep.em (U_SIZE): Delete.
	(pep_data_import_dll): Likewise.
	(make_import_fixup): Return void, take 4th parameter and pass it down
	in call to pe_create_import_fixup.
	(pep_find_data_imports): Move to...
	(gld_${EMULATION_NAME}_after_open): Run the stdcall fixup pass after
	the auto-import pass and add a guard before running the latter.
	* pe-dll.c (runtime_pseudp_reloc_v2_init): Change type to bfd_boolean.
	(pe_walk_relocs_of_symbol): Rename into...
	(pe_walk_relocs): ...this.  Add 2 more parameters,4th parameter to the
	callback prototype and pass 4th parameter in calls to the callback.
	If the import hash table is present, invoke the callback on the reloc
	if the symbol name is in the table.
	(pe_find_data_imports): ...here.  Take 2 parameters.  Build an import
	hash table for the pseudo-relocation support version 2.  When it is
	built, walk the relocations only once at the end; when it is not, do
	not build a fixup when the symbol isn't part of an import table.
	Issue the associated warning only after a first fixup is built.
	(tmp_seq2): Delete.
	(make_singleton_name_imp): Likewise.
	(make_import_fixup_mark): Return const char * and a stable string.
	(make_import_fixup_entry): Do not deal with the pseudo-relocation
	support version 2.
	(make_runtime_pseudo_reloc): Factor out code and fix formatting.
	(pe_create_import_fixup): Add 5th parameter.  Clearly separate the
	pseudo-relocation support version 2 from the rest.  Fix formatting.
	* pe-dll.h (pe_walk_relocs_of_symbol): Delete.
	(pe_find_data_imports): Declare.
	(pe_create_import_fixup): Add 5th parameter.
	* pep-dll.c (pe_data_import_dll): Delete.
	(pe_find_data_imports): Define.
	(pe_walk_relocs_of_symbol): Delete.
	* pep-dll.h (pep_walk_relocs_of_symbol): Delete.
	(pep_find_data_imports): Declare.
	(pep_create_import_fixup): Add 5th parameter.
	* ld.texinfo (--enable-auto-import): Adjust to new implementation.
2018-04-04 12:07:50 +02:00
Nick Clifton
f6c4d4b152 Add an extra library name template to the list used by the WIN32 targets.
PR 22948
	* emultempl/pe.em (open_dynamic_archive): Add libXXX.lib template
	to library name list.
	* emultempl/pep.em (open_dynamic_archive): Likewise.
	* ld.texinfo (WIN32): Update documentation.
2018-03-23 12:08:54 +00:00
Andreas Schwab
202d116e57 RISC-V: Don't enable relaxation in relocatable link
PR ld/22949
	* emultempl/riscvelf.em (riscv_elf_before_allocation): Don't
	enable relaxation in relocatable link.
2018-03-15 09:54:51 +01:00
Kuan-Lin Chen
f967164095 nds32: Remove the unsupported target feature. 2018-03-15 14:50:51 +08:00
Jim Wilson
770aa8a3d3 RISC-V: Disallow output format changes.
PR 22920
	* emultempl/riscvelf.em (riscv_create_output_section_statements): New.
	(LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS): New.
	* testsuite/ld-elf/pr21884.d (#notarget): Add riscv*-*-*.
	* testsuite/ld-unique/pr21529.d (#notarget): Likewise.
	* testsuite/ld-srec/srec.exp (run_srec_test): For riscv*-*-* target,
	call setup_xfail.
2018-03-06 12:01:50 -08:00
Jim Wilson
9a2ebffd4d Ensure 8-byte alignment for AArch64 stubs.
PR 22903
bfd	* elfnn-aarch64.c (_bfd_aarch64_resize_stubs): Add 8 bytes for branch
	and nop instead of 4.
	(elfNN_arch64_build_stubs): Add nop after branch.  Increase size by
	8 instead of 4.

ld	* emultempl/aarch64elf.em (elf${ELFSIZE}_aarch64_add_stub_section):
	Give stub_sec 8 byte alignment.
	* emulparams/aarch64cloudabi.sh (NOP): Set to 0x1f2003d5.
	* emulparams/aarch64elf.sh (NOP): Likewise.
	* emulparams/aarch64elf32.sh (NOP): Likewise.
	* emulparams/aarch64fbsd.sh (NOP): Likewise.
	* emulparams/aarch64linux.sh (NOP): Likewise.
	* emulparams/aarch64linux32.sh (NOP): Likewise.
	* testsuite/ld-aarch64/erratum835769.d: Adjust for added nop.
	* testsuite/ld-aarch64/erratum843419.d: Likewise.
	* testsuite/ld-aarch64/farcall-b-defsym.d: Likewise.
	* testsuite/ld-aarch64/farcall-b-none-function.d: Likewise.
	* testsuite/ld-aarch64/farcall-b-plt.d: Likewise.
	* testsuite/ld-aarch64/farcall-b-section.d: Likewise.
	* testsuite/ld-aarch64/farcall-b.d: Likewise.
	* testsuite/ld-aarch64/farcall-back.d: Likewise.
	* testsuite/ld-aarch64/farcall-bl-defsym.d: Likewise.
	* testsuite/ld-aarch64/farcall-bl-none-function.d: Likewise.
	* testsuite/ld-aarch64/farcall-bl-plt.d: Likewise.
	* testsuite/ld-aarch64/farcall-bl-section.d: Likewise.
	* testsuite/ld-aarch64/farcall-bl.d: Likewise.
2018-03-02 10:49:20 +00:00
H.J. Lu
f6aec96dce ld: Add --enable-separate-code
This patch adds --enable-separate-code to ld configure to turn on
-z separate-code by default and enables it by default for Linux/x86.
This avoids mixing code pages with data to improve cache performance
as well as security.

To reduce x86-64 executable and shared object sizes, the maximum page
size is reduced from 2MB to 4KB when -z separate-code is turned on by
default.  Note: -z max-page-size= can be used to set the maximum page
size.

We compared SPEC CPU 2017 performance before and after this change on
Skylake server.  There are no any significant performance changes.
Everything is mostly below +/-1%.

bfd/

	* config.in: Regenerated.
	* configure: Likewise.
	* configure.ac: Add --enable-separate-code.
	(DEFAULT_LD_Z_SEPARATE_CODE): New AC_DEFINE_UNQUOTED.  Default
	to 1 for Linux/x86 targets,
	* elf64-x86-64.c (ELF_MAXPAGESIZE): Set to 0x1000 if
	DEFAULT_LD_Z_SEPARATE_CODE is 1.

ld/

	* NEWS: Mention --enable-separate-code.
	* configure.ac: Add --enable-separate-code.
	(DEFAULT_LD_Z_SEPARATE_CODE): New AC_DEFINE_UNQUOTED.
	* configure.tgt: Default ac_default_ld_z_separate_code to 1 for
	Linux/x86 targets.
	* config.in: Regenerated.
	* configure: Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set
	link_info.separate_code DEFAULT_LD_Z_SEPARATE_CODE.
2018-02-27 11:34:29 -08:00
Alan Modra
df5f2391f7 ld error/warning messages
This patch standardizes messages in ld, to better conform to the GNU
coding standard.  Besides issues of capitalization and full-stops,
I've
- Split up help messages for target options, so that adding a new
  option does not mean loss of translation for all the others.
- Embedded tabs have been removed, since a user might have tab stops
  set at other than 8 char intervals.
- Added missing program name (%P).  ld isn't the compiler.
- Put %F and %X first (and removed %X if %F was present).  These can
  go anywhere, but look silly in the m%Fiddle of a message, and
  choosing "%P%F:" in some messages but "%F%P:" in others leads to the
  likelihood of duplication in ld.pot.  Besides, the colon belongs
  with %P.

	* emulparams/call_nop.sh, * emulparams/cet.sh,
	* emulparams/elf32mcore.sh, * emultempl/aarch64elf.em
	* emultempl/aix.em, * emultempl/alphaelf.em, * emultempl/armcoff.em,
	* emultempl/armelf.em, * emultempl/avrelf.em, * emultempl/beos.em,
	* emultempl/bfin.em, * emultempl/cr16elf.em, * emultempl/elf32.em,
	* emultempl/elf-generic.em, * emultempl/hppaelf.em,
	* emultempl/linux.em, * emultempl/lnk960.em,
	* emultempl/m68hc1xelf.em, * emultempl/m68kcoff.em,
	* emultempl/m68kelf.em, * emultempl/metagelf.em,
	* emultempl/mipself.em, * emultempl/mmix-elfnmmo.em,
	* emultempl/mmo.em, * emultempl/msp430.em, * emultempl/nds32elf.em,
	* emultempl/nios2elf.em, * emultempl/pe.em, * emultempl/pep.em,
	* emultempl/ppc32elf.em, * emultempl/ppc64elf.em,
	* emultempl/scoreelf.em, * emultempl/sh64elf.em,
	* emultempl/spuelf.em, * emultempl/sunos.em, * emultempl/tic6xdsbt.em,
	* emultempl/ticoff.em, * emultempl/v850elf.em, * emultempl/vms.em,
	* emultempl/vxworks.em, * emultempl/xtensaelf.em, * ldcref.c,
	* ldctor.c, * ldexp.c, * ldfile.c, * ldgram.y, * ldlang.c,
	* ldmain.c, * ldmisc.c, * ldwrite.c, * lexsup.c, * mri.c, * pe-dll.c,
	* plugin.c: Standardize error/warning messages.
	* testsuite/ld-arc/jli-overflow.err,
	* testsuite/ld-arm/cmse-implib-errors.out,
	* testsuite/ld-arm/cmse-new-earlier-later-implib.out,
	* testsuite/ld-arm/cmse-new-implib-not-sg-in-implib.out,
	* testsuite/ld-arm/cmse-new-wrong-implib.out,
	* testsuite/ld-arm/cmse-veneers-no-gnu_sgstubs.out,
	* testsuite/ld-arm/cmse-veneers-wrong-entryfct.out,
	* testsuite/ld-arm/vxworks1-static.d,
	* testsuite/ld-cris/tls-err-20x.d, * testsuite/ld-cris/tls-err-29.d,
	* testsuite/ld-cris/tls-err-31.d, * testsuite/ld-cris/tls-err-33.d,
	* testsuite/ld-cris/tls-err-35.d, * testsuite/ld-cris/tls-err-37.d,
	* testsuite/ld-cris/tls-err-39.d, * testsuite/ld-cris/tls-err-41.d,
	* testsuite/ld-cris/tls-err-43.d, * testsuite/ld-cris/tls-err-45.d,
	* testsuite/ld-cris/tls-err-47.d, * testsuite/ld-cris/tls-err-49.d,
	* testsuite/ld-cris/tls-err-51.d, * testsuite/ld-cris/tls-err-67.d,
	* testsuite/ld-elf/dwarf2.err, * testsuite/ld-elf/dwarf3.err,
	* testsuite/ld-elf/orphan-5.l, * testsuite/ld-elf/orphan-6.l,
	* testsuite/ld-i386/vxworks1-static.d,
	* testsuite/ld-mips-elf/bal-jalx-pic-micromips-n32.d,
	* testsuite/ld-mips-elf/bal-jalx-pic-micromips-n64.d,
	* testsuite/ld-mips-elf/bal-jalx-pic-micromips.d,
	* testsuite/ld-mips-elf/bal-jalx-pic-n32.d,
	* testsuite/ld-mips-elf/bal-jalx-pic-n64.d,
	* testsuite/ld-mips-elf/bal-jalx-pic.d,
	* testsuite/ld-mips-elf/jal-global-overflow-1.d,
	* testsuite/ld-mips-elf/jal-local-overflow-1.d,
	* testsuite/ld-mips-elf/mode-change-error-1.d,
	* testsuite/ld-mips-elf/unaligned-branch-2.d,
	* testsuite/ld-mips-elf/unaligned-branch-ignore-2.d,
	* testsuite/ld-mips-elf/unaligned-branch-ignore-micromips.d,
	* testsuite/ld-mips-elf/unaligned-branch-ignore-mips16.d,
	* testsuite/ld-mips-elf/unaligned-branch-ignore-r6-1.d,
	* testsuite/ld-mips-elf/unaligned-branch-micromips.d,
	* testsuite/ld-mips-elf/unaligned-branch-mips16.d,
	* testsuite/ld-mips-elf/unaligned-branch-r6-1.d,
	* testsuite/ld-mips-elf/unaligned-branch-r6-2.d,
	* testsuite/ld-mips-elf/unaligned-branch.d,
	* testsuite/ld-mips-elf/unaligned-jalx-1.d,
	* testsuite/ld-mips-elf/unaligned-jalx-3.d,
	* testsuite/ld-mips-elf/unaligned-jalx-addend-1.d,
	* testsuite/ld-mips-elf/unaligned-jalx-addend-3.d,
	* testsuite/ld-mips-elf/unaligned-jalx-addend-micromips-1.d,
	* testsuite/ld-mips-elf/unaligned-jalx-addend-mips16-1.d,
	* testsuite/ld-mips-elf/unaligned-jalx-micromips-1.d,
	* testsuite/ld-mips-elf/unaligned-jalx-mips16-1.d,
	* testsuite/ld-mips-elf/unaligned-jump-micromips.d,
	* testsuite/ld-mips-elf/unaligned-jump-mips16.d,
	* testsuite/ld-mips-elf/unaligned-jump.d,
	* testsuite/ld-mips-elf/unaligned-ldpc-1.d,
	* testsuite/ld-mips-elf/unaligned-lwpc-1.d,
	* testsuite/ld-mips-elf/undefined.d,
	* testsuite/ld-mips-elf/vxworks1-static.d,
	* testsuite/ld-mmix/bpo-20.d, * testsuite/ld-mmix/bpo-20m.d,
	* testsuite/ld-mmix/bpo-7.d, * testsuite/ld-mmix/bpo-7m.d,
	* testsuite/ld-mmix/bpo-8.d, * testsuite/ld-mmix/bpo-8m.d,
	* testsuite/ld-mmix/greg-17.d, * testsuite/ld-mmix/greg-18.d,
	* testsuite/ld-mmix/greg-8.d, * testsuite/ld-mmix/greg-9.d,
	* testsuite/ld-plugin/plugin-14.d, * testsuite/ld-plugin/plugin-15.d,
	* testsuite/ld-plugin/plugin-16.d, * testsuite/ld-plugin/plugin-20.d,
	* testsuite/ld-plugin/plugin-21.d, * testsuite/ld-plugin/plugin-22.d,
	* testsuite/ld-plugin/plugin-23.d, * testsuite/ld-plugin/plugin-6.d,
	* testsuite/ld-plugin/plugin-7.d, * testsuite/ld-plugin/plugin-8.d,
	* testsuite/ld-powerpc/aix-weak-3-32.d,
	* testsuite/ld-powerpc/aix-weak-3-64.d,
	* testsuite/ld-powerpc/vxworks1-static.d,
	* testsuite/ld-sh/vxworks1-static.d,
	* testsuite/ld-sparc/vxworks1-static.d,
	* testsuite/ld-undefined/undefined.exp,
	* testsuite/ld-x86-64/pie1.d: Update for changed errors and warnings.
	* testsuite/ld-elf/warn1.d, * testsuite/ld-elf/warn2.d: Correct regex.
2018-02-26 10:51:12 +10:30
Alan Modra
c1c8c1ef9a Use %pI, %pR, %pS, %pT in place of %I, %R, %S and %T.
bfd/
	* elf32-arm.c, * elf32-hppa.c, * elf32-lm32.c, * elf32-m32r.c,
	* elf32-metag.c, * elf32-nds32.c, * elf32-or1k.c, * elf32-ppc.c,
	* elf32-s390.c, * elf32-sh.c, * elf32-tic6x.c, * elf32-tilepro.c,
	* elf64-ppc.c, * elf64-s390.c, * elflink.c, * elfnn-aarch64.c,
	* elfnn-riscv.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c,
	* reloc.c: Replace use of %R and %T in format strings passed to
	einfo and friends by %pR and %pT.
ld/
	* ldmisc.c (vfinfo) Handle %pI, %pR, %pS and %pT in place of
	%I, %R, %S and %T.
	* ldcref.c, * ldctor.c, * ldemul.c, * ldexp.c, * ldgram.y,
	* ldlang.c, * ldlex.l, * ldmain.c, * ldmisc.c, * pe-dll.c,
	* emultempl/sh64elf.em: Replace use of of %I, %R, %S and %T in
	format strings passed to einfo and friends by %pI, %pR, %pS and %pT.
2018-02-19 23:55:53 +10:30
Alan Modra
871b3ab29e Use %pA and %pB in messages rather than %A and %B
First step towards compiler verification of _bfd_error_handler
arguments, and better verification of translated messages.

bfd/
	* bfd.c (_bfd_doprnt, _bfd_doprnt_scan): Handle %pA and %pB in place
	of %A and %B.
	* aout-adobe.c: Update all messages using %A and %B.
	* aout-cris.c: Likewise.
	* aoutx.h: Likewise.
	* archive.c: Likewise.
	* binary.c: Likewise.
	* cache.c: Likewise.
	* coff-alpha.c: Likewise.
	* coff-arm.c: Likewise.
	* coff-i860.c: Likewise.
	* coff-mcore.c: Likewise.
	* coff-ppc.c: Likewise.
	* coff-rs6000.c: Likewise.
	* coff-sh.c: Likewise.
	* coff-tic4x.c: Likewise.
	* coff-tic54x.c: Likewise.
	* coff-tic80.c: Likewise.
	* coff64-rs6000.c: Likewise.
	* coffcode.h: Likewise.
	* coffgen.c: Likewise.
	* cofflink.c: Likewise.
	* coffswap.h: Likewise.
	* compress.c: Likewise.
	* cpu-arm.c: Likewise.
	* ecoff.c: Likewise.
	* elf-attrs.c: Likewise.
	* elf-eh-frame.c: Likewise.
	* elf-ifunc.c: Likewise.
	* elf-m10300.c: Likewise.
	* elf-properties.c: Likewise.
	* elf-s390-common.c: Likewise.
	* elf.c: Likewise.
	* elf32-arc.c: Likewise.
	* elf32-arm.c: Likewise.
	* elf32-avr.c: Likewise.
	* elf32-bfin.c: Likewise.
	* elf32-cr16.c: Likewise.
	* elf32-cr16c.c: Likewise.
	* elf32-cris.c: Likewise.
	* elf32-crx.c: Likewise.
	* elf32-d10v.c: Likewise.
	* elf32-d30v.c: Likewise.
	* elf32-epiphany.c: Likewise.
	* elf32-fr30.c: Likewise.
	* elf32-frv.c: Likewise.
	* elf32-gen.c: Likewise.
	* elf32-hppa.c: Likewise.
	* elf32-i370.c: Likewise.
	* elf32-i386.c: Likewise.
	* elf32-i960.c: Likewise.
	* elf32-ip2k.c: Likewise.
	* elf32-iq2000.c: Likewise.
	* elf32-lm32.c: Likewise.
	* elf32-m32c.c: Likewise.
	* elf32-m32r.c: Likewise.
	* elf32-m68hc11.c: Likewise.
	* elf32-m68hc12.c: Likewise.
	* elf32-m68hc1x.c: Likewise.
	* elf32-m68k.c: Likewise.
	* elf32-mcore.c: Likewise.
	* elf32-mep.c: Likewise.
	* elf32-metag.c: Likewise.
	* elf32-microblaze.c: Likewise.
	* elf32-moxie.c: Likewise.
	* elf32-msp430.c: Likewise.
	* elf32-mt.c: Likewise.
	* elf32-nds32.c: Likewise.
	* elf32-nios2.c: Likewise.
	* elf32-or1k.c: Likewise.
	* elf32-pj.c: Likewise.
	* elf32-ppc.c: Likewise.
	* elf32-rl78.c: Likewise.
	* elf32-rx.c: Likewise.
	* elf32-s390.c: Likewise.
	* elf32-score.c: Likewise.
	* elf32-score7.c: Likewise.
	* elf32-sh-symbian.c: Likewise.
	* elf32-sh.c: Likewise.
	* elf32-sh64.c: Likewise.
	* elf32-sparc.c: Likewise.
	* elf32-spu.c: Likewise.
	* elf32-tic6x.c: Likewise.
	* elf32-tilepro.c: Likewise.
	* elf32-v850.c: Likewise.
	* elf32-vax.c: Likewise.
	* elf32-visium.c: Likewise.
	* elf32-wasm32.c: Likewise.
	* elf32-xgate.c: Likewise.
	* elf32-xtensa.c: Likewise.
	* elf64-alpha.c: Likewise.
	* elf64-gen.c: Likewise.
	* elf64-hppa.c: Likewise.
	* elf64-ia64-vms.c: Likewise.
	* elf64-mmix.c: Likewise.
	* elf64-ppc.c: Likewise.
	* elf64-s390.c: Likewise.
	* elf64-sh64.c: Likewise.
	* elf64-sparc.c: Likewise.
	* elf64-x86-64.c: Likewise.
	* elfcode.h: Likewise.
	* elfcore.h: Likewise.
	* elflink.c: Likewise.
	* elfnn-aarch64.c: Likewise.
	* elfnn-ia64.c: Likewise.
	* elfnn-riscv.c: Likewise.
	* elfxx-mips.c: Likewise.
	* elfxx-sparc.c: Likewise.
	* elfxx-tilegx.c: Likewise.
	* elfxx-x86.c: Likewise.
	* hpux-core.c: Likewise.
	* ieee.c: Likewise.
	* ihex.c: Likewise.
	* libbfd.c: Likewise.
	* linker.c: Likewise.
	* mach-o.c: Likewise.
	* merge.c: Likewise.
	* mmo.c: Likewise.
	* oasys.c: Likewise.
	* pdp11.c: Likewise.
	* pe-mips.c: Likewise.
	* peXXigen.c: Likewise.
	* peicode.h: Likewise.
	* reloc.c: Likewise.
	* rs6000-core.c: Likewise.
	* srec.c: Likewise.
	* stabs.c: Likewise.
	* vms-alpha.c: Likewise.
	* xcofflink.c: Likewise.
ld/
	* ldmisc.c (vfinfo): Handle %pA and %pB in place of %A and %B.
	* ldcref.c: Update all messages using %A and %B.
	* ldexp.c: Likewise.
	* ldlang.c: Likewise.
	* ldmain.c: Likewise.
	* ldmisc.c: Likewise.
	* pe-dll.c: Likewise.
	* plugin.c: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/cr16elf.em: Likewise.
	* emultempl/elf32.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/m68kelf.em: Likewise.
	* emultempl/mmo.em: Likewise.
	* emultempl/nds32elf.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/pep.em: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/xtensaelf.em: Likewise.
2018-02-19 23:55:53 +10:30
Alan Modra
407aa07cee Revert "PowerPC PLT speculative execution barriers"
This reverts most of commit 1be5d8d3bb.
Left in place are addition of --no-plt-align to some ppc32 ld tests
and the ld.texinfo --no-plt-thread-safe fix.
2018-02-07 14:23:08 +10:30
H.J. Lu
c5bdb02260 solaris2.em: Fold after_allocation into before_allocation
Since all ELF linkers call check_relocs after opening all inputs, we
can fold after_allocation into before_allocation so that local dynamic
symbols will be placed before global dynamic symbols in .dynsym section.
This fixed:

FAIL: Common symbol override test (auxiliary shared object build)
FAIL: ld-elf/pr19617a
FAIL: ld-elf/pr19698

for i386-solaris2.12 and x86_64-solaris2.12 targets.

	PR ld/22728
	* emultempl/solaris2.em (elf_solaris2_after_allocation): Fold
	into ...
	(elf_solaris2_before_allocation): This.
	(LDEMUL_AFTER_ALLOCATION): Removed.
2018-01-18 16:22:13 -08:00
Alan Modra
691d2e9af2 PowerPC PLT stub alignment fixes
Asking for ppc32 plt call stubs to be aligned at 32 byte boundaries
didn't quite work.  For ld.bfd they were spaced 32 bytes apart, but
only started on a 16 byte boundary.  ld.gold also didn't get it right.

Finding that bug made me check over the ppc64 plt stub alignment,
where I found that negative values for alignment (meaning align to
minimize boundary crossing) were not accepted.  Since no one has
complained about that, I guess I could have removed the feature from
ld.bfd documentation, but I've opted instead to correct the code.

I've also added an optional alignment paramenter for ppc32
--plt-align, for some consistency with gold and ppc64 ld.bfd.

bfd/
	* elf32-ppc.c (ppc_elf_create_glink): Correct alignment of .glink.
	* elf64-ppc.c (ppc64_elf_size_stubs): Handle negative plt_stub_align.
	(ppc64_elf_build_stubs): Likewise.
gold/
	* powerpc.cc (param_plt_align): New function supplying default
	--plt-align values.  Use it..
	(Stub_table::plt_call_align): ..here, and..
	(Output_data_glink::global_entry_align): ..here.
	(Stub_table::stub_align): Correct 32-bit minimum alignment.
ld/
	* emultempl/ppc32elf.em: Support optional --plt-align arg.
	* emultempl/ppc64elf.em: Support negative --plt-align arg.
2018-01-18 22:25:21 +10:30
Alan Modra
1be5d8d3bb PowerPC PLT speculative execution barriers
Spectre variant 2 mitigation for PowerPC and PowerPC64.

bfd/
	* elf32-ppc.c (GLINK_ENTRY_SIZE): Handle speculation barrier.
	(CRSETEQ, BEQCTRM): Define.
	(is_nonpic_glink_stub): Don't check bctr.
	(ppc_elf_link_hash_table_create): Init new ppc_elf_params field.
	(ppc_elf_relax_section): Size speculation barrier.
	(output_bctr): New function.
	(write_glink_stub): Use output_bctr.
	(ppc_elf_relocate_section): Use output_bctr for long branch stub.
	(ppc_elf_finish_dynamic_symbol): Likewise.
	(ppc_elf_finish_dynamic_sections): Use output_bctr.
	* elf32-ppc.h (struct ppc_elf_params): Add speculate_indirect_jumps.
	* elf64-ppc.c (CRSETEQ, BEQCTRM, BEQCTRLM): Define.
	(GLINK_PLTRESOLVE_SIZE): Size speculation barrier.
	(size_global_entry_stubs): Handle speculation barrier sizing.
	(plt_stub_size): Likewise.
	(output_bctr): New function.
	(build_plt_stub, build_tls_get_addr_stub): Output speculation
	barrier.
	(ppc_build_one_stub): Likewise for ppc_stub_plt_branch.
	(ppc_size_one_stub): Size speculation barrier in ppc_stub_plt_branch.
	(build_global_entry_stubs): Output speculation barrier.
	(ppc64_elf_build_stubs): Likewise in __glink_PLTresolve stub.
	* elf64-ppc.h (struct ppc64_elf_params): Add speculate_indirect_jumps.
gold/
	* options.h (speculate_indirect_jumps): New option.
	* powerpc.cc (beqctrm, beqctrlm, crseteq): New insn constants.
	(output_bctr): New function.
	(Stub_table::plt_call_size): Add space for speculation barrier.
	(Stub_table::branch_stub_size): Likewise.
	(Output_data_glink::pltresolve_size): Likewise.
	(Stub_table::do_write): Output speculation barriers.
ld/
	* emultempl/ppc32elf.em (params): Init new field.
	(OPTION_SPECULATE_INDIRECT_JUMPS): Define.
	(OPTION_NO_SPECULATE_INDIRECT_JUMPS): Define.
	(PARSE_AND_LIST_LONGOPTS): Handle new options.
	(PARSE_AND_LIST_ARGS_CASES): Likewise.
	(PARSE_AND_LIST_OPTIONS): Likewise.
	* emultempl/ppc64elf.em (params): Init new field.
	(OPTION_SPECULATE_INDIRECT_JUMPS): Define.
	(OPTION_NO_SPECULATE_INDIRECT_JUMPS): Define.
	(PARSE_AND_LIST_LONGOPTS): Handle --speculate-indirect-jumps.
	(PARSE_AND_LIST_OPTIONS): Likewise.
	(PARSE_AND_LIST_ARGS_CASES): Likewise.
	* ld.texinfo (--no-plt-thread-safe): Correct itemx.
	(--speculate-indirect-jumps): Document.
	* testsuite/ld-powerpc/elfv2exe.d,
	* testsuite/ld-powerpc/elfv2so.d,
	* testsuite/ld-powerpc/relbrlt.d,
	* testsuite/ld-powerpc/powerpc.exp: Disable plt alignment and
	speculation barriers on various tests.
2018-01-17 18:52:57 +10:30
Alan Modra
9e390558ce PowerPC PLT stub tidy
This is in preparation for the next patch adding Spectre variant 2
mitigation for PowerPC and PowerPC64.  Besides tidying code involved
in stub output (to reduce the number of places where bctr is output),
the patch adds some user visible features:

1) PowerPC64 ELFv2 global entry stubs now are aligned under the
   control of --plt-align, with a default alignment of 32 bytes.
2) PowerPC64 __glink_PLTresolve is no longer padded out with nops.
3) PowerPC32 PLT stubs are aligned under the control of --plt-align,
   with the default alignment being 16 bytes as before.
4) The PowerPC32 branch/nop table emitted before __glink_PLTresolve
   is now smaller in many cases.  It was sized incorrectly when the
   __tls_get_addr_opt stub was used, and unnecessarily included space
   for local ifuncs.

bfd/
	* elf32-ppc.c (GLINK_ENTRY_SIZE): Add parameters, handle
	__tls_get_addr_opt, and alignment sizing.
	(TLS_GET_ADDR_GLINK_SIZE): Delete.
	(is_nonpic_glink_stub): Don't use GLINK_ENTRY_SIZE.
	(ppc_elf_get_synthetic_symtab): Recognize stubs spaced at 4, 6,
	or 8 insns.
	(ppc_elf_link_hash_table_create): Init new ppc_elf_params field.
	(allocate_dynrelocs): Use new GLINK_ENTRY_SIZE.
	(ppc_elf_size_dynamic_sections): Likewise.  Size branch table
	by PLT reloc count.
	(write_glink_stub): Handle __tls_get_addr_opt stub.
	Pad out to size given by GLINK_ENTRY_SIZE.
	(ppc_elf_relocate_section): Adjust write_glink_stub call.
	(ppc_elf_finish_dynamic_symbol): Likewise.
	(ppc_elf_finish_dynamic_sections): Write PLTresolve without using
	insn array since so many need rewriting.
	* elf32-ppc.h (struct ppc_elf_params): Add plt_stub_align.
	* elf64-ppc.c (GLINK_PLTRESOLVE_SIZE): Rename from
	GLINK_CALL_STUB_SIZE.  Add htab param and evaluate to size without
	nops.  Adjust all uses.
	(ppc64_elf_get_synthetic_symtab): Don't use GLINK_CALL_STUB_SIZE
	in glink_vma calculation.
	(struct ppc_link_hash_table): Add global_entry section pointer.
	(create_linkage_sections): Create separate section for global
	entry stubs.
	(PPC_LO, PPC_HI, PPC_HA): Move earlier.
	(size_global_entry_stubs): Handle sizing for aligned stubs.
	(ppc64_elf_size_dynamic_sections): Handle global_entry alloc,
	and don't stash end of glink branch table in rawsize.
	(ppc_build_one_stub): Rewrite stub size calculations.
	(build_global_entry_stubs): Use new section.
	(ppc64_elf_build_stubs): Don't pad __glink_PLTresolve with nops.
	Build lazy link stubs out to end of section.  Build global entry
	stubs in new section.
gold/
	* options.h (plt_align): Support for PowerPC32 too.
	* powerpc.cc (Stub_table::stub_align): Heed --plt-align for 32-bit.
	(Stub_table::plt_call_size, branch_stub_size): Tidy.
	(Stub_table::plt_call_align): Implement using stub_align.
	(Output_data_glink::global_entry_align): New function.
	(Output_data_glink::global_entry_off): New function.
	(Output_data_glink::global_entry_address): Use global_entry_off.
	(Output_data_glink::pltresolve_size): New function, replacing
	pltresolve_size_ constant.  Update all uses.
	(Output_data_glink::add_global_entry): Align offset.
	(Output_data_glink::set_final_data_size): Use global_entry_align.
	(Stub_table::do_write): Don't pad __glink_PLTrelsolve with nops.
	Tidy stub output.  Use global_entry_off.
ld/
	* emultempl/ppc32elf.em (params): Init new field.
	(enum ppc32_opt): New enum to define OPTION_* values.  Add
	OPTION_PLT_ALIGN and OPTION_NO_PLT_ALIGN.
	(PARSE_AND_LIST_LONGOPTS): Handle new options.
	(PARSE_AND_LIST_ARGS_CASES): Likewise.
	(PARSE_AND_LIST_OPTIONS): Likewise.  Break up help output.
	* emultempl/ppc64elf.em (ppc_add_stub_section): Init alignment
	correctly for negative --plt-stub-align.
	* testsuite/ld-powerpc/elfv2exe.d,
	* testsuite/ld-powerpc/elfv2so.d,
	* testsuite/ld-powerpc/relbrlt.d,
	* testsuite/ld-powerpc/relbrlt.s,
	* testsuite/ld-powerpc/tlsexe.d,
	* testsuite/ld-powerpc/tlsexe.r,
	* testsuite/ld-powerpc/tlsexe32.d,
	* testsuite/ld-powerpc/tlsexe32.g,
	* testsuite/ld-powerpc/tlsexe32.r,
	* testsuite/ld-powerpc/tlsexetoc.d,
	* testsuite/ld-powerpc/tlsexetoc.r,
	* testsuite/ld-powerpc/tlsopt5_32.d,
	* testsuite/ld-powerpc/tlsso.d,
	* testsuite/ld-powerpc/tlstocso.d: Update for changed stub order.
2018-01-17 18:51:04 +10:30
Nick Clifton
97a232d733 Add -z undefs option to the ELF linker.
Currently we have no obvious way to revert the action of the "-z defs"
  command line option.  The "--unresolved-symbols=ignore-in-object-files"
  does pretty much what is needed, but it is non-obvious and it also
  touches the setting for reporting unresolved symbol references from
  shared libraries.  So I am proposing adding a "-z undefs" option to be
  the inverse of "-z defs".  (I thought that "-z nodefs" might be
  confusing since it implies banning all definitions, rather than
  allowing them).

  In addition the description of the "-z defs" option in the linker
  documentation is misleading in one place, where it says:

    'defs'
       Disallows undefined symbols in object files.  Undefined
       symbols in shared libraries are still allowed.

  whereas later on it gets it right:

    '-z defs'
       Report unresolved symbol references from regular object files.
       This is done even if the linker is creating a non-symbolic shared
       library.  The switch '--[no-]allow-shlib-undefined' controls the
       behaviour for reporting unresolved references found in shared
       libraries being linked in.

	* emultempl/elf32.em (_handle_option): Add support for "-z undefs"
	as the opposite of "-z defs".
	* ld.texinfo: Document the new option.  Update the description of
	the -z defs option to make it clear that it does generate an error
	if an undefined symbol reference is found in an object file whilst
	creating a shared library.
	* NEWS: Document this new feature.
2018-01-12 08:15:55 +00:00
H.J. Lu
47acac12c8 ld: Add "-z separate-code" option to ELF linker
The new "-z separate-code" option will generate separate code LOAD
segment which must be in wholly disjoint pages from any other data.

include/

	PR ld/22393
	* bfdlink.h (bfd_link_info): Add separate_code.

ld/

	PR ld/22393
	* NEWS: Mention "-z separate-code".
	* emultempl/elf32.em (gld${EMULATION_NAME}_get_script): Get
	builtin linker scripts and return linker scripts from disk for
	"-z separate-code".
	(gld${EMULATION_NAME}_handle_option): Handle "-z separate-code"
	and "-z noseparate-code".
	* genscripts.sh: Generate linker scripts for "-z separate-code".
	(LD_FLAG): Set to *textonly for "-z separate-code".
	* ld.texinfo: Document "-z separate-code".
	* lexsup.c (elf_shlib_list_options): Add linker help messsages
	for "-z separate-code" and "-z noseparate-code".
	* scripttempl/elf.sc (SEPARATE_TEXT): New
	(TEXT_SEGMENT_ALIGN): Likewise.
	Use ${TEXT_SEGMENT_ALIGN} to align and pad text segment to
	${MAXPAGESIZE}.
2018-01-11 19:01:52 -08:00
Alan Modra
219d1afa89 Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
Nick Clifton
2824e1bd4f Stop the v850 linker from converting to other output formats whilst linking.
PR 22419
	* emultempl/v850elf.em (v850_create_output_section_statements):
	New function.  Generate an error if attempting to convert the
	format of the output file.
	* testsuite/ld-unique/pr21529.d: Skip for the V850.
	* testsuite/ld-elf/pr21884.d: Skip for the V850.
2017-11-21 14:15:51 +00:00
H.J. Lu
58e6cc77b7 ld: Replace exp_dataseg_none with exp_seg_none
* emultempl/ppc32elf.em (ppc_before_allocation): Replace
	exp_dataseg_none with exp_seg_none.
	* emultempl/ppc64elf.em (prelim_size_sections): Likewise.
	* emultempl/spuelf.em (spu_before_allocation): Likewise.
2017-11-13 08:19:10 -08:00
H.J. Lu
fb24d531e9 ld: Reformat emultempl/elf32.em
Reformat emultempl/elf32.em to generate consistent codes.

	* emultempl/elf32.em (gld${EMULATION_NAME}_get_script): Reformat
	to generate consistent codes.
2017-11-09 14:38:37 -08:00
Palmer Dabbelt
ff6f4d9b2d RISC-V: Add R_RISCV_DELETE, which marks bytes for deletion
We currently delete bytes by shifting an entire BFD backwards to
overwrite the bytes we no longer need.  The result is that relaxing a
BFD is quadratic time.

This patch adds an additional relocation that specifies a byte range
that will be deleted from the final object file, and adds a relaxation
pass (between the existing passes that delete bytes and the alignment
pass) that actually deletes the bytes.  Note that deletion is still
quadratic time, and nothing uses R_RISCV_DELETE yet.

I've been meaning to go convert all the other relaxations to use
R_RISCV_DELETE and then make it faster, but this patch has been sitting
around for months so it looks like that won't happen for a bit.  The
PCREL->GPREL relaxation that comes next uses this, and since we've been
using these two patches out of tree since I wrote them months ago I
figure it's better to just get them in now.  I (or someone else :)) can
convert all the relocations later...

R_RISCV_DELETE will never be emitted into ELF objects, so therefor isn't
exposed to the rest of binutils.  As such, we're not considering this as
part of the ABI.

bfd/ChangeLog

2017-10-19  Palmer Dabbelt  <palmer@dabbelt.com>

        * elfnn-riscv (R_RISCV_DELETE): New define.
        (_bfd_riscv_relax_delete): New function.
        (perform_relocation): Handle R_RISCV_DELETE.
        (_bfd_riscv_relax_section): Likewise.

ld/ChangeLog

2017-10-19  Palmer Dabbelt  <palmer@dabbelt.com>

        * emultempl/riscvelf.em (riscv_elf_before_allocation): Add a
        third relaxation pass.
2017-10-19 09:19:32 -07:00
H.J. Lu
5c3261b0e8 ELF: Call check_relocs after opening all inputs
For all ELF targers, call check_relocs after opening all inputs and
garbage collection.  Since the symbol resolution is known, check_relocs
can be simplified.  Also garbage collection doesn't need to undo what
check_relocs has done for symbols which have been garbage collected.
Since ELF targets never see the removed sections, gc_sweep_hook can be
removed from elf_backend_data and we can avoid GOT/PLT with garbage
collection now.

Set link_info.check_relocs_after_open_input to TRUE for all linker
targets which use ELF linker and update garbage collection tests to
remove unused GOT section.

ldemul_after_check_relocs is added for powerpc to support --secure-plt,
--bss-plt and --sdata-got.

Tested natively without regressions on i686, x86-64 and x32.  Tested
cross binutils on x86-64 without regressions for aarch64-linux,
alpha-linux, arm-linux, bfin-elf, cr16-elf, cris-elf, crx-elf, frv-linux,
hppa64-linux, hppa-linux, ia64-linux, lm32-elf, m32r-elf, m68k-linux,
mcore-elf, metag-elf, microblaze-linux, mips-linux, mmix, mn10300-elf,
nds32le-linux, nios2-linux, or1k-elf, powerpc64-linux, powerpc-linux,
riscv32-linux, riscv64-linux, s390-linux, s390x-linux, score-elf,
sh3-linux, sparc64-linux, sparc-linux, tic6x-elf, tilegx-linux,
tilepro-linux, vax-linux, x86_64-mingw32 and xtensa-linux.

bfd/

	* elf-bfd.h (elf_backend_data): Remove gc_sweep_hook.
	* elf32-arm.c (elf32_arm_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-bfin.c (bfin_gc_sweep_hook): Likewise.
	(bfinfdpic_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cr16.c (elf32_cr16_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cris.c (cris_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-hppa.c (elf32_hppa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-lm32.c (lm32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m32r.c (m32r_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m68k.c (elf_m68k_got_entry): Remove elf_m68k_gc_sweep_hook
	from comments.
	(elf_m68k_remove_got_entry_type): Removed.
	(elf_m68k_find_got_entry_ptr): Likewise.
	(elf_m68k_remove_got_entry): Likewise.
	(elf_m68k_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mcore.c (mcore_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-metag.c (elf_metag_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-microblaze.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mips.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nds32.c (nds32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nios2.c (nios2_elf32_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-or1k.c (or1k_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-ppc.c (ppc_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tic6x.c (elf32_tic6x_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilepro.c (tilepro_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-vax.c (elf_vax_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-alpha.c (elf64_alpha_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-mips.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-mmix.c (mmix_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-ppc.c (elf_backend_gc_sweep_hook): Likewise.
	(ppc64_elf_gc_sweep_hook): Likewise.
	* elf64-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elflink.c (elf_link_add_object_symbols): Don't call
	_bfd_elf_link_check_relocs here.
	(gc_sweep_hook_fn): Removed.
	(elf_gc_sweep): Remove gc_sweep_hook.
	* elfnn-aarch64.c (elfNN_aarch64_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfnn-riscv.c (riscv_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_gc_sweep_hook): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-sparc.h (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-target.h (elf_backend_gc_sweep_hook): Likewise.
	(elfNN_bed): Remove elf_backend_gc_sweep_hook.
	* elfxx-tilegx.c (tilegx_elf_gc_sweep_hook): Removed.
	* elfxx-tilegx.h (tilegx_elf_gc_sweep_hook): Likewise.

ld/

	* emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Removed.
	* emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_iamcu.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_k1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_l1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf32.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf32_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
	after_parse_default.
	* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960c.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/lnk960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/m68kcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/sunos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Always
	set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add $LDEMUL_AFTER_CHECK_RELOCS.
	* emultempl/linux.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add after_check_relocs_default.
	* emultempl/mmix-elfnmmo.em (mmix_before_parse): New function.
	(LDEMUL_BEFORE_PARSE): New.
	* emultempl/mmixelf.em (elfmmix_before_parse): Replace
	gld${EMULATION_NAME}_before_parse with mmix_before_parse.
	* emultempl/ppc32elf.em (ppc_after_open): Renamed to ...
	(ppc_after_check_relocs): This.  Call after_check_relocs_default
	instead of gld${EMULATION_NAME}_after_open.
	(LDEMUL_AFTER_OPEN): Removed.
	(LDEMUL_AFTER_CHECK_RELOCS): New.
	* ldemul.c (ldemul_after_check_relocs): New.
	(after_check_relocs_default): Likewise.
	* ldemul.h (ldemul_after_check_relocs): Likewise.
	(after_check_relocs_default): Likewise.
	(ld_emulation_xfer_struct): Add after_check_relocs.
	* ldlang.c (lang_process): Call ldemul_after_check_relocs after
	lang_check_relocs.
	* testsuite/ld-aarch64/gc-got-relocs.d: Don't expect GOT section.
	* testsuite/ld-aarch64/gc-tls-relocs.d: Likewise.
	* testsuite/ld-cris/tls-gc-68.d: Likewise.
	* testsuite/ld-cris/tls-gc-69.d: Likewise.
	* testsuite/ld-cris/tls-gc-70.d: Likewise.
	* testsuite/ld-cris/tls-gc-75.d: Likewise.
	* testsuite/ld-cris/tls-gc-79.d: Likewise.
	* testsuite/ld-mmix/bpo-10.d: Don't expect .MMIX.reg_contents
	section.
2017-10-16 03:50:13 -07:00
Alan Modra
6c19b93bcd ld whitespace fixes
* pe-dll.c: Formatting, whitespace fixes.
	* NEWS: Whitespace fixes.
	* configure.ac: Likewise.
	* configure.tgt: Likewise.
	* deffilep.y: Likewise.
	* genscripts.sh: Likewise.
	* ld.texinfo: Likewise.
	* ldgram.y: Likewise.
	* ldlang.c: Likewise.
	* ldlex.l: Likewise.
	* lexsup.c: Likewise.
	* plugin.c: Likewise.
	* emulparams/arc-endianness.sh: Likewise.
	* emulparams/elf32_x86_64.sh: Likewise.
	* emulparams/elf64mmix.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/h8300elf.sh: Likewise.
	* emulparams/h8300elf_linux.sh: Likewise.
	* emulparams/vxworks.sh: Likewise.
	* emultempl/aarch64elf.em: Likewise.
	* emultempl/aix.em: Likewise.
	* emultempl/armelf.em: Likewise.
	* emultempl/avrelf.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/hppaelf.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/m68kelf.em: Likewise.
	* emultempl/metagelf.em: Likewise.
	* emultempl/msp430.em: Likewise.
	* emultempl/nds32elf.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/pep.em: Likewise.
	* emultempl/ppc64elf.em: Likewise.
	* emultempl/sh64elf.em: Likewise.
	* emultempl/spu_ovl.S: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/tic6xdsbt.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vms.em: Likewise.
	* po/Make-in: Likewise.
	* scripttempl/DWARF.sc: Likewise.
	* scripttempl/aix.sc: Likewise.
	* scripttempl/alpha.sc: Likewise.
	* scripttempl/alphavms.sc: Likewise.
	* scripttempl/aout.sc: Likewise.
	* scripttempl/arclinux.sc: Likewise.
	* scripttempl/armaout.sc: Likewise.
	* scripttempl/armbpabi.sc: Likewise.
	* scripttempl/armcoff.sc: Likewise.
	* scripttempl/avr.sc: Likewise.
	* scripttempl/crisaout.sc: Likewise.
	* scripttempl/delta68.sc: Likewise.
	* scripttempl/dlx.sc: Likewise.
	* scripttempl/elf.sc: Likewise.
	* scripttempl/elf32cr16.sc: Likewise.
	* scripttempl/elf32cr16c.sc: Likewise.
	* scripttempl/elf32crx.sc: Likewise.
	* scripttempl/elf32msp430.sc: Likewise.
	* scripttempl/elf32msp430_3.sc: Likewise.
	* scripttempl/elf32sh-symbian.sc: Likewise.
	* scripttempl/elf32xc16x.sc: Likewise.
	* scripttempl/elf32xc16xl.sc: Likewise.
	* scripttempl/elf32xc16xs.sc: Likewise.
	* scripttempl/elf64hppa.sc: Likewise.
	* scripttempl/elf_chaos.sc: Likewise.
	* scripttempl/elfarc.sc: Likewise.
	* scripttempl/elfarcv2.sc: Likewise.
	* scripttempl/elfd10v.sc: Likewise.
	* scripttempl/elfd30v.sc: Likewise.
	* scripttempl/elfi370.sc: Likewise.
	* scripttempl/elfm68hc11.sc: Likewise.
	* scripttempl/elfm68hc12.sc: Likewise.
	* scripttempl/elfmicroblaze.sc: Likewise.
	* scripttempl/elfxgate.sc: Likewise.
	* scripttempl/elfxtensa.sc: Likewise.
	* scripttempl/epiphany_4x4.sc: Likewise.
	* scripttempl/epocpe.sc: Likewise.
	* scripttempl/h8300.sc: Likewise.
	* scripttempl/h8300h.sc: Likewise.
	* scripttempl/h8300hn.sc: Likewise.
	* scripttempl/h8300s.sc: Likewise.
	* scripttempl/h8300sn.sc: Likewise.
	* scripttempl/h8300sx.sc: Likewise.
	* scripttempl/h8300sxn.sc: Likewise.
	* scripttempl/h8500.sc: Likewise.
	* scripttempl/h8500b.sc: Likewise.
	* scripttempl/h8500c.sc: Likewise.
	* scripttempl/h8500m.sc: Likewise.
	* scripttempl/h8500s.sc: Likewise.
	* scripttempl/hppaelf.sc: Likewise.
	* scripttempl/i386beos.sc: Likewise.
	* scripttempl/i386coff.sc: Likewise.
	* scripttempl/i386go32.sc: Likewise.
	* scripttempl/i386msdos.sc: Likewise.
	* scripttempl/i860coff.sc: Likewise.
	* scripttempl/i960.sc: Likewise.
	* scripttempl/ia64vms.sc: Likewise.
	* scripttempl/ip2k.sc: Likewise.
	* scripttempl/iq2000.sc: Likewise.
	* scripttempl/m68kaux.sc: Likewise.
	* scripttempl/m68kcoff.sc: Likewise.
	* scripttempl/m88kbcs.sc: Likewise.
	* scripttempl/mcorepe.sc: Likewise.
	* scripttempl/mep.sc: Likewise.
	* scripttempl/mips.sc: Likewise.
	* scripttempl/mipsbsd.sc: Likewise.
	* scripttempl/mmo.sc: Likewise.
	* scripttempl/moxie.sc: Likewise.
	* scripttempl/nds32elf.sc: Likewise.
	* scripttempl/nw.sc: Likewise.
	* scripttempl/pe.sc: Likewise.
	* scripttempl/pep.sc: Likewise.
	* scripttempl/pj.sc: Likewise.
	* scripttempl/ppcpe.sc: Likewise.
	* scripttempl/psos.sc: Likewise.
	* scripttempl/riscix.sc: Likewise.
	* scripttempl/sh.sc: Likewise.
	* scripttempl/sparccoff.sc: Likewise.
	* scripttempl/st2000.sc: Likewise.
	* scripttempl/tic30aout.sc: Likewise.
	* scripttempl/tic30coff.sc: Likewise.
	* scripttempl/tic4xcoff.sc: Likewise.
	* scripttempl/tic54xcoff.sc: Likewise.
	* scripttempl/tic80coff.sc: Likewise.
	* scripttempl/v850.sc: Likewise.
	* scripttempl/v850_rh850.sc: Likewise.
	* scripttempl/vanilla.sc: Likewise.
	* scripttempl/visium.sc: Likewise.
	* scripttempl/w65.sc: Likewise.
	* scripttempl/xstormy16.sc: Likewise.
	* scripttempl/z80.sc: Likewise.
	* scripttempl/z8000.sc: Likewise.
	* configure: Regenerate.
2017-10-12 23:30:43 +10:30
Alan Modra
22b1ee183d Set dynamic_undefined_weak to zero for static PIEs
I believe we should be warning if ld is given both --no-dynamic-linker
and -z dynamic-undefined-weak.  The two options are contradictory, the
first says an executable has no dynamic interpreter to resolve dynamic
symbols, while the second is asking for dynamic symbols to be emitted.
(And even if a static PIE's relocation code, which is needed to
process R_*_RELATIVE relocs, could process symbols, there are no
DT_NEEDED dynamic objects to define such symbols.)

I also think that dynamic_undefined_weak is the right flag to control
whether undefined weaks are made dynamic, whether in static PIEs or
anywhere else.  So force it to 0 for static PIEs, fixing PR 22269 for
powerpc and any other target where the backend usually defaults to
undefined weaks being made dynamic.

This patch introduces regressions.  I'd normally not do that, but
these are all in very recently added test cases, or expose bugs in the
x86 backend.  The test cases were added after I'd made it known that
this patch or one like it was imminent.

	PR 22269
	* emultempl/elf32.em (after_parse): Warn on --no-dynamic-linker
	-z dynamic-undefined-weak combination.  Set dynamic_undefined_weak
	to zero when nointerp.
2017-10-12 14:37:11 +10:30
Alan Modra
559192d89d _bfd_elf_link_hash_hide_symbol calls in generic ELF code
This function shouldn't be called directly, except from backend code.

bfd/
	* elflink.c (_bfd_elf_adjust_dynamic_symbol): Call
	elf_backend_hide_symbol, not _bfd_elf_link_hash_hide_symbol.
	(bfd_elf_define_start_stop): Likewise.
ld/
	* emultempl/elf32.em (before_allocation): Call
	elf_backend_hide_symbol, not _bfd_elf_link_hash_hide_symbol.
	Formatting.
2017-10-12 13:13:06 +10:30
Alan Modra
d003af5580 ld internationalization fixes
* emultempl/aarch64elf.em: Wrap einfo strings in _().  Formatting.
	* emultempl/aix.em: Likewise.
	* emultempl/armcoff.em: Likewise.
	* emultempl/armelf.em: Likewise.
	* emultempl/avrelf.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/cr16elf.em: Likewise.
	* emultempl/elf-generic.em: Likewise.
	* emultempl/elf32.em: Likewise.
	* emultempl/genelf.em: Likewise.
	* emultempl/hppaelf.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/lnk960.em: Likewise.
	* emultempl/m68hc1xelf.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/m68kelf.em: Likewise.
	* emultempl/metagelf.em: Likewise.
	* emultempl/mipself.em: Likewise.
	* emultempl/mmix-elfnmmo.em: Likewise.
	* emultempl/mmo.em: Likewise.
	* emultempl/msp430.em: Likewise.
	* emultempl/nds32elf.em: Likewise.
	* emultempl/nios2elf.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/pep.em: Likewise.
	* emultempl/ppc32elf.em: Likewise.
	* emultempl/ppc64elf.em: Likewise.
	* emultempl/riscvelf.em: Likewise.
	* emultempl/s390.em: Likewise.
	* emultempl/scoreelf.em: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/tic6xdsbt.em: Likewise.
	* emultempl/v850elf.em: Likewise.
	* emultempl/vms.em: Likewise.
	* emultempl/vxworks.em: Likewise.
	* ldcref.c: Likewise.
	* ldlang.c: Likewise.
	* ldlex.l: Likewise.
	* ldmain.c: Likewise.
	* pe-dll.c: Likewise.
	* plugin.c: Likewise.
2017-10-11 15:04:59 +10:30
Alan Modra
2420fff633 PowerPC64 --plt-align
This changes the PowerPC64 --plt-align option to perform the usual
alignment of code as suggested by its name, as well as the previous
behaviour of padding so as to reduce boundary crossing.  The old
behaviour is had by using a negative parameter.

The default is also changed to align plt stub code by default to 32
byte boundaries, the point being to get better bctr branch prediction
on power8 and power9 hardware.

bfd/
	* elf64-ppp.c (plt_stub_pad): Handle positive and negative
	plt_stub_align.
ld/
	* ld.texinfo (--plt-align): Describe new behaviour of option.
	* emultempl/ppc64elf.em (params): Default plt_stub_align to 5.
	* testsuite/ld-powerpc/powerpc.exp: Pass --no-plt-align for
	selected tests.
	* testsuite/ld-powerpc/relbrlt.d: Pass --no-plt-align.
	* testsuite/ld-powerpc/elfv2so.d: Adjust expected output.
2017-09-10 01:55:16 +09:30
Alan Modra
96d01d93c4 -Og warning fixes
Found when building with gcc 4.9.4 using -Og.

bfd/
	* elf-eh-frame.c (offset_adjust): Avoid false positive gcc warning.
	* elflink.c (bfd_elf_size_dynsym_hash_dynstr): Likewise.
	* elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Likewise.
ld/
	* emultempl/msp430.em (eval_upper_either_sections): Make base_sec_name
	a const char*.
	(eval_lower_either_sections): Likewise.
	(msp430_elf_after_allocation): Likewise, and don't needlessly concat
	and free.  Warning fix.
2017-09-02 11:00:02 +09:30
Jozef Lawrynowicz
7ef3addbe1 Improve MSP430 section placement.
ld	* emultempl/msp430.em (change_output_section): New function.
	(move_prefixed_section): New function.
	(add_region_prefix): New function.
	(msp430_elf_after_open): New function.
	(gld${EMULATION_NAME}_add_options): Implement.
	(gld${EMULATION_NAME}_list_options): Implement.
	(gld${EMULATION_NAME}_handle_option): Implement.
	* ld.texinfo: Document new options.
	* testsuite/ld-msp430-elf/main-bss-lower.d: New.
	* testsuite/ld-msp430-elf/main-bss-upper.d: New.
	* testsuite/ld-msp430-elf/main-const-lower.d: New.
	* testsuite/ld-msp430-elf/main-const-upper.d: New.
	* testsuite/ld-msp430-elf/main-text-lower.d: New.
	* testsuite/ld-msp430-elf/main-text-upper.d: New.
	* testsuite/ld-msp430-elf/main-var-lower.d: New.
	* testsuite/ld-msp430-elf/main-var-upper.d: New.
	* testsuite/ld-msp430-elf/main-with-data-bss-unique-sec.s: New.
	* testsuite/ld-msp430-elf/main-with-data-bss.s: New.
	* testsuite/ld-msp430-elf/main-with-text-rodata-unique-sec.s: New.
	* testsuite/ld-msp430-elf/main-with-text-rodata.s: New.
	* testsuite/ld-msp430-elf/msp430-elf.exp: New.
	* testsuite/ld-msp430-elf/msp430-no-lower.ld: New.
	* testsuite/ld-msp430-elf/msp430.ld: New.
	* emultempl/msp430.em (data_statement_size): New.
	(eval_upper_either_sections): New.
	(eval_lower_either_sections): New.
	(intermediate_relax_sections): New.
	(msp430_elf_after_allocation): New.
	* emultempl/msp430.em (gld${EMULATION_NAME}_place_orphan): Always
	place sections in the lower region.

gas	* config/tc-msp430.c (md_parse_option): Define high data and high
	bss symbols if -mdata-region is passed.
	Define -mdata-region open.
	* doc/c-msp430.texi: Document -mdata-region.
	* testsuite/gas/msp430/high-data-bss-sym.d: New test.
	* testsuite/gas/msp430/high-data-bss-sym.s: New.
	* testsuite/gas/msp430/msp430.exp: Add -mdata-region tests.
2017-08-29 17:18:43 +01:00
Nick Clifton
93ab9c0de7 Add -z globalaudit linker command line option to set the DF_GLOBALAUDIT flag bit in the dynamic tags.
* emultempl/elf32.em (handle_option): Accept the -z globalaudit
	command line option.
	* lexsup.c (elf_static_list_options): Add -z globalaudit.
	* ld.texinfo: Document the support for the new command line
	option.
	* NEWS: Mention the new feature.
	* testsuite/ld-elf/audit.exp: Add a test of the -z globalaudit
	command line option.
	* testsuite/ld-elf/globalaudit.rd: New file: Expected output from
	readelf.
2017-08-11 16:36:28 +01:00
Nick Clifton
fd9770d81f Add more targets to the list of architectures not supporting format changing during linking. Fix seg-faults triggered when this is attempted.
PR ld/21884
	* testsuite/ld-elf/pr21884.d: Add AVR, HPPA, IA64, M68HC1x and
	SCORE to list of targets not supporting file format changes during
	linking.
	* testsuite/ld-unique/pr21529.d: Likewise.
	* emultempl/avrelf.em (_before_allocation): Skip for non-ELF
	output formats.
	(avr_elf_create_output_section_statements): Fail if the output
	format is not ELF.
	(avr_finish): Do not access the ELF header in non-ELF format
	output bfds.
	* emultempl/m68hc1xelf.em (_before_allocation): Skip for non-ELF
	output formats.
	(m68hc11elf_create_output_section_statements): Fail if the putput
	format is not ELF.
	(m68hc11elf_after_allocation): Skip for non-ELF output formats.
2017-08-03 11:59:32 +01:00
Alan Modra
2e9246e077 ELF checks for orphan placement
The loop checking for previous orphan placement should run even when
the output is non-ELF.

	PR ld/21884
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Revert
	last change.  Rename iself to elfinput.  Expand comments.  Condition
	ELF checks on having both input and output ELF files.  Extract..
	(elf_orphan_compatible): ..this new function.
2017-08-03 14:40:49 +09:30
H.J. Lu
db99ecc08f Check ELF section header only for ELF output
When placing an orphan input section, check ELF section header only for
ELF output.

	PR ld/21884
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Check
	ELF section header only for ELF output.
	* testsuite/ld-elf/pr21884.d: New test.
	* testsuite/ld-elf/pr21884.t: Likewise.
	* testsuite/ld-elf/pr21884a.s: Likewise.
	* testsuite/ld-elf/pr21884b.s: Likewise.
2017-08-02 05:10:48 -07:00
H.J. Lu
b8f4abd342 Revert the last change to emultempl/elf32.em
It will be replaced by a different fix.

	* emultempl/elf32.em (_place_orphan): Revert the last change.
2017-08-02 05:09:25 -07:00
Max Filippov
73d5923e48 Fix assertion failure for xtensa linker.
* emultempl/xtensaelf.em (xtensa_wild_group_interleave_callback):
	Only check for by_name sorting.
2017-08-02 11:48:07 +01:00
Nick Clifton
ddff3d84be Fix seg-fault when trying to place non-ELF orphan sections.
PR 21884
	* emultempl/elf32.em (_place_orphan): Skip non-ELF binaries when
	looking for sections to merge.
2017-08-02 11:45:05 +01:00
Maciej W. Rozycki
e54cb31aa3 MIPS/LD: Fix a segfault from ELF `e_flags' access with non-ELF output BFD
Fix a commit 861fb55ab5 ("Defer allocation of R_MIPS_REL32 GOT
slots"), <https://sourceware.org/ml/binutils/2008-08/msg00096.html>,
regression and a more recent:

FAIL: ld-unique/pr21529

new LD test case failure, observed with all the relevant MIPS targets
whenever the linker is invoked with one or more ELF inputs and the
output format set to `binary'.

The culprit is a segmentation fault caused in `mips_before_allocation'
by a null pointer dereference, where an attempt is made to access the
ELF file header's `e_flags' member, for the purpose of determining
whether to produce a PLT and copy relocations, without first checking
that the output BFD is ELF.  The `e_flags' member is stored in BFD's
private data pointed to by `tdep', which in the case of the `binary' BFD
is null, causing the segmentation fault.  With other non-ELF BFDs such
as SREC `tdep' is not null and consequently no crash may happen and in
that case random data will be interpreted as it was `e_flags'.

Disable the access to `e_flags' then and all the associated checks and
consequently never produce a PLT and copy relocations if output is not a
MIPS ELF BFD, matching `_bfd_mips_elf_merge_private_bfd_data' that does
not process `e_flags' in that case either and therefore does not let us
decide here anyway if all the input objects included in the link are
suitable for use with a PLT and copy relocations.

	ld/
	* emultempl/mipself.em (mips_before_allocation): Avoid ELF
	processing if not MIPS ELF.
	* testsuite/ld-mips-elf/binary.d: New test.
	* testsuite/ld-mips-elf/binary.ld: New test linker script.
	* testsuite/ld-mips-elf/binary.s: New test source.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new test.
2017-07-07 17:58:03 +01:00
Alan Modra
57963c05b9 Don't attach linker created section to --just-syms bfd
All sections on a --just-syms bfd are discarded from the output, so
attaching linker created sections to such a bfd results in errors.
In other cases, like the .note.GNU-stack check, it's wrong to have a
--just-syms object potentially affect the output.

bfd/
	* elflink.c (_bfd_elf_link_create_dynstrtab): Don't make dynobj
	a --just-syms bfd.
	(_bfd_elf_size_group_sections): Skip --just-syms bfds.
	(bfd_elf_size_dynamic_sections): Ignore .note.GNU-stack and
	.preinit_array on --just-syms bfds.
	(_bfd_elf_gc_mark_extra_sections): Skip --just-syms bfds.
	(elf_gc_sweep, bfd_elf_parse_eh_frame_entries): Likewise.
	(bfd_elf_gc_sections, bfd_elf_discard_info): Likewise.
ld/
	* emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Skip
	--just-syms bfds when looking for a place to attach .note.gnu.build-id
	and .eh_frame_hdr sections.  Delete dead code.
2017-06-26 09:10:22 +09:30
Andreas Krebbel
b4cbbe8f72 S/390: Add support for pgste marker
This patch adds a new S/390 specific segment type: PT_S390_PGSTE.  For
binaries marked with that segment the kernel will allocate 4k page
tables.  The only user so far will be qemu.

ld/ChangeLog:

2017-06-23  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* Makefile.in: Add s390.em as build dependency.
	* emulparams/elf64_s390.sh (EXTRA_EM_FILE): Add s390.em.
	* emultempl/s390.em: New file.
	* gen-doc.texi: Add documentation for --s390-pgste option.
	* ld.texinfo: Likewise.

include/ChangeLog:

2017-06-23  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* elf/s390.h (PT_S390_PGSTE): Define macro.

binutils/ChangeLog:

2017-06-23  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* readelf.c (get_s390_segment_type): Add support for the new
	segment type PT_S390_PGSTE.
	(get_segment_type): Call get_s390_segment_type.

elfcpp/ChangeLog:

2017-06-23  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* elfcpp.h (enum PT): Add PT_S390_PGSTE to enum.

bfd/ChangeLog:

2017-06-23  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* elf-s390.h: New file.
	* elf64-s390.c (struct elf_s390_link_hash_table): Add params
	field.
	(elf_s390_additional_program_headers): New function.
	(elf_s390_modify_segment_map): New function.
	(bfd_elf_s390_set_options): New function.
	(elf_backend_additional_program_headers)
	(elf_backend_modify_segment_map): Add macro definitions.
2017-06-23 08:00:46 +02:00
Alan Modra
7dba9362c1 Rewrite __start and __stop symbol handling
This arranges for __start and __stop symbols to be defined before
garbage collection, for all target formats.  That should allow the
COFF and PE --gc-sections to keep a singleton orphan input section,
a feature lost by 2017-06-13 commit cbd0eecf26.  The fancier ELF
treatment of keeping all input sections associated with a __start or
__stop symbol, from 2015-10-23 commit 1cce69b9dc, is retained.

.startof. and .sizeof. symbols are deliberately not defined before
garbage collection, so these won't affect garbage collection of
sections.

The patch also ensures __start, __stop, .startof. and .sizeof. symbols
are defined before target size_dynamic_sections is called, albeit
with a preliminary value, so that target code doesn't need to cope
with a symbol changing from undefined at size_dynamic_sections to
defined at relocate_section.

Also, a number of problems with the testcases have been fixed.

	PR ld/20022
	PR ld/21557
	PR ld/21562
	PR ld/21571
include/
	* bfdlink.h (struct bfd_link_hash_entry): Delete undef.section.
bfd/
	* targets.c (struct bfd_target): Add _bfd_define_start_stop.
	(BFD_JUMP_TABLE_LINK): Likewise.
	* elf-bfd.h (bfd_elf_define_start_stop): Declare.
	* elflink.c (_bfd_elf_gc_mark_rsec): Update comment.
	(bfd_elf_define_start_stop): New function.
	* linker.c (bfd_generic_define_start_stop): New function.
	* coff64-rs6000.c (rs6000_xcoff64_vec, rs6000_xcoff64_aix_vec): Init
	new field.
	* aout-adobe.c (aout_32_bfd_define_start_stop): Define.
	* aout-target.h (MY_bfd_define_start_stop): Define.
	* aout-tic30.c (MY_bfd_define_start_stop): Define.
	* binary.c (binary_bfd_define_start_stop): Define.
	* bout.c (b_out_bfd_define_start_stop): Define.
	* coff-alpha.c (_bfd_ecoff_bfd_define_start_stop): Define.
	* coff-mips.c (_bfd_ecoff_bfd_define_start_stop): Define.
	* coff-rs6000.c (_bfd_xcoff_bfd_define_start_stop): Define.
	* coffcode.h (coff_bfd_define_start_stop): Define.
	* elfxx-target.h (bfd_elfNN_bfd_define_start_stop): Define.
	* i386msdos.c (msdos_bfd_define_start_stop): Define.
	* i386os9k.c (os9k_bfd_define_start_stop): Define.
	* ieee.c (ieee_bfd_define_start_stop): Define.
	* ihex.c (ihex_bfd_define_start_stop): Define.
	* libbfd-in.h (_bfd_nolink_bfd_define_start_stop): Define.
	* mach-o-target.c (bfd_mach_o_bfd_define_start_stop): Define.
	* mmo.c (mmo_bfd_define_start_stop): Define.
	* nlm-target.h (nlm_bfd_define_start_stop): Define.
	* oasys.c (oasys_bfd_define_start_stop): Define.
	* pef.c (bfd_pef_bfd_define_start_stop): Define.
	* plugin.c (bfd_plugin_bfd_define_start_stop): Define.
	* ppcboot.c (ppcboot_bfd_define_start_stop): Define.
	* som.c (som_bfd_define_start_stop): Define.
	* srec.c (srec_bfd_define_start_stop): Define.
	* tekhex.c (tekhex_bfd_define_start_stop): Define.
	* versados.c (versados_bfd_define_start_stop): Define.
	* vms-alpha.c (vms_bfd_define_start_stop): Define.
	(alpha_vms_bfd_define_start_stop): Define.
	* xsym.c (bfd_sym_bfd_define_start_stop): Define.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
ld/
	* emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Don't set
	__start/__stop syms here.
	* ldlang.c (lang_set_startof): Delete.
	(start_stop_syms, start_stop_count, start_stop_alloc): New vars.
	(lang_define_start_stop, lang_init_start_stop, foreach_start_stop,
	undef_start_stop, lang_undef_start_stop, lang_init_startof_sizeof,
	set_start_stop, lang_finalize_start_stop): New functions.
	(lang_process): Call _start_stop functions.
	* testsuite/ld-elf/pr21562a.d: Use xfail rather than notarget.
	Correct typos and list of xfail targets.
	* testsuite/ld-elf/pr21562b.d: Likewise.
	* testsuite/ld-elf/pr21562c.d: Likewise.
	* testsuite/ld-elf/pr21562d.d: Likewise.
	* testsuite/ld-elf/pr21562e.d: Likewise.
	* testsuite/ld-elf/pr21562f.d: Likewise.
	* testsuite/ld-elf/pr21562g.d: Likewise.
	* testsuite/ld-elf/pr21562h.d: Likewise.
	* testsuite/ld-elf/pr21562i.d: Likewise.
	* testsuite/ld-elf/pr21562j.d: Likewise.
	* testsuite/ld-elf/pr21562k.d: Likewise.
	* testsuite/ld-elf/pr21562l.d: Likewise.
	* testsuite/ld-elf/pr21562m.d: Likewise.
	* testsuite/ld-elf/pr21562n.d: Likewise.
	* testsuite/ld-elf/sizeofa.d: Likewise.  Adjust to pass for generic ELF.
	* testsuite/ld-elf/sizeofb.d: Likewise.
	* testsuite/ld-elf/startofa.d: Likewise.
	* testsuite/ld-elf/startofb.d: Likewise.
2017-06-16 23:38:28 +09:30
H.J. Lu
cbd0eecf26 Always define referenced __start_SECNAME/__stop_SECNAME
Currently, linker will define __start_SECNAME and __stop_SECNAME symbols
only for orphaned sections.

However, during garbage collection, ELF linker marks all sections with
references to __start_SECNAME and __stop_SECNAME symbols as used even
when section SECNAME isn't an orphaned section and linker won't define
__start_SECNAME nor __stop_SECNAME.  And ELF linker stores the first
input section whose name matches __start_SECNAME or __stop_SECNAME in
u.undef.section for garbage collection.  If these symbols are provided
in linker script, u.undef.section is set to the section where they will
defined by linker script, which leads to the incorrect output.

This patch changes linker to always define referenced __start_SECNAME and
__stop_SECNAME if the input section name is the same as the output section
name, which is always true for orphaned sections, and SECNAME is a C
identifier.  Also __start_SECNAME and __stop_SECNAME symbols are marked
as hidden by ELF linker so that __start_SECNAME and __stop_SECNAME symbols
for section SECNAME in different modules are unique.  For garbage
collection, ELF linker stores the first matched input section in the
unused vtable field.

bfd/

	PR ld/20022
	PR ld/21557
	PR ld/21562
	PR ld/21571
	* elf-bfd.h (elf_link_hash_entry): Add start_stop.  Change the
	vtable field to a union.
	(_bfd_elf_is_start_stop): Removed.
	* elf32-i386.c (elf_i386_convert_load_reloc): Also check for
	__start_SECNAME and __stop_SECNAME symbols.
	* elf64-x86-64.c (elf_x86_64_convert_load_reloc): Likewise.
	* elflink.c (_bfd_elf_is_start_stop): Removed.
	(_bfd_elf_gc_mark_rsec): Check start_stop instead of calling
	_bfd_elf_is_start_stop.
	(elf_gc_propagate_vtable_entries_used): Skip __start_SECNAME and
	__stop_SECNAME symbols.  Updated.
	(elf_gc_smash_unused_vtentry_relocs): Likewise.
	(bfd_elf_gc_record_vtinherit): Likewise.
	(bfd_elf_gc_record_vtentry): Likewise.

ld/

	PR ld/20022
	PR ld/21557
	PR ld/21562
	PR ld/21571
	* ld.texinfo: Update __start_SECNAME/__stop_SECNAME symbols.
	* ldlang.c (lang_insert_orphan): Move handling of __start_SECNAME
	and __stop_SECNAME symbols to ...
	(lang_set_startof): Here.  Also define __start_SECNAME and
	__stop_SECNAME for -Ur.
	* emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Mark
	referenced __start_SECNAME and __stop_SECNAME symbols as hidden
	and set start_stop for garbage collection.
	* testsuite/ld-elf/pr21562a.d: New file.
	* testsuite/ld-elf/pr21562a.s: Likewise.
	* testsuite/ld-elf/pr21562a.t: Likewise.
	* testsuite/ld-elf/pr21562b.d: Likewise.
	* testsuite/ld-elf/pr21562b.s: Likewise.
	* testsuite/ld-elf/pr21562b.t: Likewise.
	* testsuite/ld-elf/pr21562c.d: Likewise.
	* testsuite/ld-elf/pr21562c.t: Likewise.
	* testsuite/ld-elf/pr21562d.d: Likewise.
	* testsuite/ld-elf/pr21562d.t: Likewise.
	* testsuite/ld-elf/pr21562e.d: Likewise.
	* testsuite/ld-elf/pr21562f.d: Likewise.
	* testsuite/ld-elf/pr21562g.d: Likewise.
	* testsuite/ld-elf/pr21562h.d: Likewise.
	* testsuite/ld-elf/pr21562i.d: Likewise.
	* testsuite/ld-elf/pr21562j.d: Likewise.
	* testsuite/ld-elf/pr21562k.d: Likewise.
	* testsuite/ld-elf/pr21562l.d: Likewise.
	* testsuite/ld-elf/pr21562m.d: Likewise.
	* testsuite/ld-elf/pr21562n.d: Likewise.
	* testsuite/ld-gc/pr20022.d: Likewise.
	* testsuite/ld-gc/pr20022a.s: Likewise.
	* testsuite/ld-gc/pr20022b.s: Likewise.
	* testsuite/ld-gc/gc.exp: Run PR ld/20022 tests.
	* testsuite/ld-gc/pr19161.d: Also accept local __start_SECNAME
	symbol.
	* testsuite/ld-gc/start.d: Likewise.
	* testsuite/ld-x86-64/lea1a.d: Updated.
	* testsuite/ld-x86-64/lea1b.d: Updated.
	* testsuite/ld-x86-64/lea1d.d: Updated.
	* testsuite/ld-x86-64/lea1e.d: Likewise.
2017-06-13 08:53:22 -07:00
Alan Modra
f378ab099d PPC64_OPT_LOCALENTRY
ELFv2 functions with localentry:0 are those with a single entry point,
ie. global entry == local entry, and that have no requirement on r2 or
r12, and guarantee r2 is unchanged on return.  Such an external
function can be called via the PLT without saving r2 or restoring it
on return, avoiding a common load-hit-store for small functions.   The
optimization is attractive.  The TOC pointer load-hit-store is a major
reason why calls to small functions that need no register saves, or
with shrink-wrap, no register saves on a fast path, are slow on
powerpc64le.

To be safe, this optimization needs ld.so support to check that the
run-time matches link-time function implementation.  If a function
in a shared library with st_other localentry non-zero is called
without saving and restoring r2, r2 will be trashed on return, leading
to segfaults.  For that reason the optimization does not happen for
weak functions since a weak definition is a fairly solid hint that the
function will likely be overridden.  I'm also not enabling the
optimization by default unless glibc-2.26 is detected, which should
have the ld.so checks implemented.

bfd/
	* elf64-ppc.c (struct ppc_link_hash_table): Add has_plt_localentry0.
	(ppc64_elf_merge_symbol_attribute): Merge localentry bits from
	dynamic objects.
	(is_elfv2_localentry0): New function.
	(ppc64_elf_tls_setup): Default params->plt_localentry0.
	(plt_stub_size): Adjust size for tls_get_addr_opt stub.
	(build_tls_get_addr_stub): Use a simpler stub when r2 is not saved.
	(ppc64_elf_size_stubs): Leave stub_type as ppc_stub_plt_call for
	optimized localentry:0 stubs.
	(ppc64_elf_build_stubs): Save r2 in ELFv2 __glink_PLTresolve.
	(ppc64_elf_relocate_section): Leave nop unchanged for optimized
	localentry:0 stubs.
	(ppc64_elf_finish_dynamic_sections): Set PPC64_OPT_LOCALENTRY in
	DT_PPC64_OPT.
	* elf64-ppc.h (struct ppc64_elf_params): Add plt_localentry0.
include/
	* elf/ppc64.h (PPC64_OPT_LOCALENTRY): Define.
ld/
	* emultempl/ppc64elf.em (params): Init plt_localentry0 field.
	(enum ppc64_opt): New, replacing OPTION_* defines.  Add
	OPTION_PLT_LOCALENTRY, and OPTION_NO_PLT_LOCALENTRY.
	(PARSE_AND_LIST_*): Support --plt-localentry and --no-plt-localentry.
	* testsuite/ld-powerpc/elfv2so.d: Update.
	* testsuite/ld-powerpc/powerpc.exp (TLS opt 5): Use --no-plt-localentry.
	* testsuite/ld-powerpc/tlsopt5.d: Update.
2017-06-01 22:47:32 +09:30