Similar to check for target linking format, also check for efiemu64 instead of hardcoding -melf_x86_64. This fixes compilation on *BSD variants. We cannot easily reuse main target check because platforms are different (main target is 32 bit and efiemu64 - 64 bit).
This commit adds EFIEMU64_LINK_FORMAT that contains detected link option and is used in efiemu64.o linking instead of hardcoded value. Reported-By: Beeblebrox <zap...@berentweb.com> --- Could you test this patch? configure.ac | 29 +++++++++++++++++++++++++++-- grub-core/Makefile.am | 2 +- 2 files changed, 28 insertions(+), 3 deletions(-) diff --git a/configure.ac b/configure.ac index 8619a67..be558de 100644 --- a/configure.ac +++ b/configure.ac @@ -654,6 +654,30 @@ if test x"$efiemu_excuse" = x ; then efiemu_excuse="cannot compile with -m64 -mcmodel=large -mno-red-zone -nostdlib" fi fi +if test x"$efiemu_excuse" = x ; then + AC_CACHE_CHECK([for efiemu64 linking format], [grub_cv_target_cc_efiemu64_link_format], [ + grub_cv_target_cc_efiemu64_link_format=unknown + for format in -melf_x86_64 -melf_x86_64_fbsd -melf_x86_64_obsd -melf_x86_64_haiku -mx86_64pe -arch,x86_64; do + CFLAGS="-m64 -nostdlib -O2 -mcmodel=large -mno-red-zone" + LDFLAGS="-m64 -Wl,$format -nostdlib" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + asm (".globl start; start:"); + asm (".globl _start; _start:"); + asm (".globl __start; __start:"); + void __main (void); + void __main (void) {} + ]], [[]])], [flag=1], [flag=0]) + if test x"$flag" = x1; then + grub_cv_target_cc_efiemu64_link_format="$format" + break; + fi + done]) + if test x"$grub_cv_target_cc_efiemu64_link_format" = xunknown; then + efiemu_excuse="no suitable link format for efiemu64 found" + else + EFIEMU64_LINK_FORMAT="-Wl,$grub_cv_target_cc_efiemu64_link_format" + fi +fi if test x"$enable_efiemu" = xyes && test x"$efiemu_excuse" != x ; then AC_MSG_ERROR([efiemu runtime was explicitly requested but can't be compiled]) fi @@ -663,11 +687,12 @@ else enable_efiemu=no fi AC_SUBST([enable_efiemu]) +AC_SUBST([EFIEMU64_LINK_FORMAT]) CFLAGS="$TARGET_CFLAGS" if test x"$target_cpu" = xi386 || test x"$target_cpu" = xx86_64; then - AC_CACHE_CHECK([for linking format], [grub_cv_target_cc_link_format], [ + AC_CACHE_CHECK([for target linking format], [grub_cv_target_cc_link_format], [ grub_cv_target_cc_link_format=unknown for format in -melf_${target_cpu} -melf_${target_cpu}_fbsd -melf_${target_cpu}_obsd -melf_${target_cpu}_haiku -m${target_cpu}pe -arch,${target_cpu}; do if test x${target_cpu} != xi386 && test x$format = x${target_cpu}pe; then @@ -681,7 +706,7 @@ if test x"$target_cpu" = xi386 || test x"$target_cpu" = xx86_64; then asm (".globl __start; __start:"); void __main (void); void __main (void) {} - ]], [[]])], [flag=1], []) + ]], [[]])], [flag=1], [flag=0]) if test x"$flag" = x1; then grub_cv_target_cc_link_format="$format" break; diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am index e2da083..e6862b7 100644 --- a/grub-core/Makefile.am +++ b/grub-core/Makefile.am @@ -421,7 +421,7 @@ efiemu64.o: efiemu64_c.o efiemu64_s.o $(TARGET_OBJ2ELEF) $(TARGET_OBJCONV) -felf64 -nu -nd $@.bin $@ || exit 1; \ rm -f $@.bin; \ else \ - $(TARGET_CC) -m64 -Wl,-melf_x86_64 -nostdlib -Wl,-r -o $@ $^ || exit 1; \ + $(TARGET_CC) -m64 $(EFIEMU64_LINK_FORMAT) -nostdlib -Wl,-r -o $@ $^ || exit 1; \ if test ! -z "$(TARGET_OBJ2ELF)"; then $(TARGET_OBJ2ELF) $@ || (rm -f $@; exit 1); fi; \ fi -- 1.8.1.4 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel