diff options
| author | davek <davek@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-27 02:22:40 +0000 |
|---|---|---|
| committer | davek <davek@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-27 02:22:40 +0000 |
| commit | 4d992eb62c555460d61df8961f2f8df95a4f3a0f (patch) | |
| tree | f1cd7b961ac18dc1a7983cdd108f5b91bbc0cb46 /gcc/config.gcc | |
| parent | ebd9ec2029d82392f94ae86a3c11bf553f5fc0b4 (diff) | |
| download | gcc-4d992eb62c555460d61df8961f2f8df95a4f3a0f.tar.gz | |
ChangeLog:
PR lto/42776
* configure.ac (--enable-lto): Refactor handling so libelf tests
are only performed inside then-clause of ACX_ELF_TARGET_IFELSE,
and allow LTO to be explicitly enabled on non-ELF platforms that
are known to support it inside else-clause.
* configure: Regenerate.
gcc/ChangeLog:
PR lto/42776
* configure.ac (gcc_cv_as_section_has_align): Set if installed
binutils supports extended .section directive needed by LTO, or
warn if older binutils found.
(LTO_BINARY_READER): New AC_SUBST'd variable.
(LTO_USE_LIBELF): Likewise.
* gcc/config.gcc (lto_binary_reader): New target-specific configure
variable.
* gcc/Makefile.in (LTO_BINARY_READER): Import AC_SUBST'd autoconf var.
(LTO_USE_LIBELF): Likewise.
* configure: Regenerate.
* collect2.c (is_elf): Rename from this ...
(is_elf_or_coff): ... to this, and recognize and allow i386 COFF
object files in addition to ELF-formatted ones.
(scan_prog_file): Caller updated. Also allow for LTO info marker
symbol to be prefixed or not by an extra underscore.
* config/i386/t-cygming (winnt.o): Also depend on LTO_STREAMER_H.
* config/i386/winnt.c: Also #include lto-streamer.h
(i386_pe_asm_named_section): Specify 1-byte section alignment for
LTO named sections.
(i386_pe_asm_output_aligned_decl_common): Add comment.
(i386_pe_maybe_record_exported_symbol): Allow decl arg to be NULL.
gcc/lto/ChangeLog:
PR lto/42776
* Make-lang.in (LTO_OBJS): Use LTO_BINARY_READER instead of
hardcoding 'lto-elf.o'.
($(LTO_EXE)): Use LTO_USE_LIBELF instead of hardcoding '-lelf'.
* lto-coff.h: New file.
* lto-coff.c: Likewise.
gcc/testsuite/ChangeLog:
PR lto/42776
* lib/lto.exp (lto_prune_vis_warns): New function.
(lto-link-and-maybe-run): Call it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158762 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config.gcc')
| -rw-r--r-- | gcc/config.gcc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/config.gcc b/gcc/config.gcc index 88631ff66e6..73be7152037 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -200,6 +200,8 @@ default_use_cxa_atexit=no target_gtfiles= need_64bit_hwint= need_64bit_isa= +# Selects the object file format reader/writer used by LTO. +lto_binary_reader=lto-elf # Don't carry these over build->host->target. Please. xm_file= @@ -1324,6 +1326,7 @@ i[34567]86-*-pe | i[34567]86-*-cygwin*) thread_file='posix' fi use_gcc_stdint=wrap + lto_binary_reader=lto-coff ;; i[34567]86-*-mingw* | x86_64-*-mingw*) tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h dbxcoff.h i386/cygming.h i386/mingw32.h" @@ -1391,6 +1394,7 @@ i[34567]86-*-mingw* | x86_64-*-mingw*) cxx_target_objs="${cxx_target_objs} winnt-cxx.o msformat-c.o" default_use_cxa_atexit=yes use_gcc_stdint=wrap + lto_binary_reader=lto-coff case ${enable_threads} in "" | yes | win32) thread_file='win32' tmake_file="${tmake_file} i386/t-gthr-win32" |