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author | H.J. Lu <hjl.tools@gmail.com> | 2016-02-03 08:25:15 -0800 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2016-02-03 08:25:15 -0800 |
commit | 0cb4071ef9e10f703220f5e731141bf438aca16e (patch) | |
tree | 273468cc997e953c37aff7edc3179a716ff3e372 /gas/configure.ac | |
parent | 3d8efabf21cfeb2f6244fadcf915da4c7f51ed6f (diff) | |
download | fsf-binutils-gdb-0cb4071ef9e10f703220f5e731141bf438aca16e.zip fsf-binutils-gdb-0cb4071ef9e10f703220f5e731141bf438aca16e.tar.gz fsf-binutils-gdb-0cb4071ef9e10f703220f5e731141bf438aca16e.tar.bz2 |
Add -mrelax-relocations= to x86 assembler
The x86 relax relocations introduced in binutils 2.26 aren't supported
by linker on Solaris older than Solaris 12. To use x86 assembler with
older Solaris linker, this patch adds
1. A command line option -mrelax-relocations= to x86 assembler to
control whether to generate relax relocations.
2. A configure option --enable-x86-relax-relocations to decide whether
x86 assembler should generate relax relocations by default. It is
defaulted to yes, except for x86 Solaris targets older than Solaris 12.
gas/
PR gas/19520
* NEWS: Mention new command line option -mrelax-relocations and
new configure option --enable-x86-relax-relocations for x86
target.
* config.in: Regenerated.
* configure.ac: Add --enable-x86-relax-relocations.
(ac_default_x86_relax_relocations): New. Default to 1 except
for x86 Solaris targets older than Solaris 12.
(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS): Define.
* configure: Likewise.
* config/tc-i386.c (generate_relax_relocations): New.
(OPTION_MRELAX_RELOCATIONS): Likewise.
(output_disp): Don't generate relax relocations if
generate_relax_relocations is 0.
(md_longopts): Add -mrelax-relocations.
(md_show_usage): Likewise.
(md_parse_option): Handle OPTION_MRELAX_RELOCATIONS.
* doc/c-i386.texi: Document -mrelax-relocations=.
* testsuite/gas/i386/got-no-relax.d: New file.
* testsuite/gas/i386/x86-64-gotpcrel-no-relax.d: Likewise.
* testsuite/gas/i386/got.d: Pass -mrelax-relocations=yes to as.
* testsuite/gas/i386/localpic.d: Likewise.
* testsuite/gas/i386/mixed-mode-reloc32.d: Likewise.
* testsuite/gas/i386/reloc32.d: Likewise.
* testsuite/gas/i386/x86-64-gotpcrel.d: Likewise.
* testsuite/gas/i386/x86-64-localpic.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-gotpcrel.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-localpic.d: Likewise.
* testsuite/gas/i386/i386.exp: Run got-no-relax and
x86-64-gotpcrel-no-relax.
ld/
PR gas/19520
* testsuite/ld-i386/branch1.d: Pass -mrelax-relocations=yes to as.
* testsuite/ld-i386/call1.d: Likewise.
* testsuite/ld-i386/call2.d: Likewise.
* testsuite/ld-i386/call3a.d: Likewise.
* testsuite/ld-i386/call3b.d: Likewise.
* testsuite/ld-i386/call3c.d: Likewise.
* testsuite/ld-i386/call3d.d: Likewise.
* testsuite/ld-i386/call3e.d: Likewise.
* testsuite/ld-i386/call3f.d: Likewise.
* testsuite/ld-i386/call3g.d: Likewise.
* testsuite/ld-i386/call3h.d: Likewise.
* testsuite/ld-i386/jmp1.d: Likewise.
* testsuite/ld-i386/jmp2.d: Likewise.
* testsuite/ld-i386/lea1c.d: Likewise.
* testsuite/ld-i386/load1.d: Likewise.
* testsuite/ld-i386/load2.d: Likewise.
* testsuite/ld-i386/load3.d: Likewise.
* testsuite/ld-i386/load4a.d: Likewise.
* testsuite/ld-i386/load5a.d: Likewise.
* testsuite/ld-i386/mov2b.d: Likewise.
* testsuite/ld-i386/mov3.d: Likewise.
* testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-5r-local-x86-64.d: Likewise.
* testsuite/ld-x86-64/call1a.d: Likewise.
* testsuite/ld-x86-64/call1b.d: Likewise.
* testsuite/ld-x86-64/call1c.d: Likewise.
* testsuite/ld-x86-64/call1d.d: Likewise.
* testsuite/ld-x86-64/call1e.d: Likewise.
* testsuite/ld-x86-64/call1f.d: Likewise.
* testsuite/ld-x86-64/call1h.d: Likewise.
* testsuite/ld-x86-64/call1i.d: Likewise.
* testsuite/ld-x86-64/load1a.d: Likewise.
* testsuite/ld-x86-64/load1b.d: Likewise.
* testsuite/ld-i386/got1a.S: Load GOT into %ecx and use it.
* testsuite/ld-i386/got1.dd: Updated.
* testsuite/ld-i386/got1d.S (1): Removed.
* testsuite/ld-i386/i386.exp: Add -Wa,-mrelax-relocations=yes.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
Diffstat (limited to 'gas/configure.ac')
-rw-r--r-- | gas/configure.ac | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gas/configure.ac b/gas/configure.ac index 9af5121..377526e 100644 --- a/gas/configure.ac +++ b/gas/configure.ac @@ -77,6 +77,17 @@ AC_ARG_ENABLE(compressed_debug_sections, *) ac_default_compressed_debug_sections=unset ;; esac])dnl +# PR gas/19520 +# Decide if x86 assembler should generate relax relocations. +ac_default_x86_relax_relocations=unset +# Provide a configure time option to override our default. +AC_ARG_ENABLE(x86_relax_relocations, + AS_HELP_STRING([--enable-x86-relax-relocations], + [generate x86 relax relocations by default]), +[case "${enableval}" in + no) ac_default_x86_relax_relocations=0 ;; +esac])dnl + using_cgen=no AM_BINUTILS_WARNINGS @@ -168,6 +179,17 @@ for this_target in $target $canon_targets ; do AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?]) ;; + i386-*-solaris2 \ + | x86_64-*-solaris2 \ + | i386-*-solaris2.[[0-9]] \ + | i386-*-solaris2.1[[01]] \ + | x86_64-*-solaris2.1[[01]]) + if test ${this_target} = $target \ + && test ${ac_default_x86_relax_relocations} = unset; then + ac_default_x86_relax_relocations=0 + fi + ;; + i860-*-*) AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress) ;; @@ -549,6 +571,13 @@ changequote([,])dnl done +if test ${ac_default_x86_relax_relocations} = unset; then + ac_default_x86_relax_relocations=1 +fi +AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS, + $ac_default_x86_relax_relocations, + [Define to 1 if you want to generate x86 relax relocations by default.]) + if test x$ac_default_compressed_debug_sections = xyes ; then AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.]) fi |