------- Comment #45 from davek at gcc dot gnu dot org 2010-04-27 02:23 ------- Subject: Bug 42776
Author: davek Date: Tue Apr 27 02:22:40 2010 New Revision: 158762 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158762 Log: 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. Added: trunk/gcc/lto/lto-coff.c trunk/gcc/lto/lto-coff.h Modified: trunk/ChangeLog trunk/configure.ac trunk/gcc/Makefile.in trunk/gcc/collect2.c trunk/gcc/config.gcc trunk/gcc/config/i386/t-cygming trunk/gcc/config/i386/winnt.c trunk/gcc/configure trunk/gcc/configure.ac trunk/gcc/lto/ChangeLog trunk/gcc/lto/Make-lang.in trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/lib/lto.exp -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42776
