From eaf3b8f6a44f827047eb5a5197fec3daae453005 Mon Sep 17 00:00:00 2001
From: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>
Date: Wed, 13 Aug 2014 18:59:58 +0000
Subject: [PATCH 484/506] Add powerpc little-endian (ppc64le) flags

libgcc dependency was removed *just* for this target because
the distros that use ppc64el doesn't have 32-bit support on it.

* configure.ac: Add targets for powerpc64el and skip libgcc.
* Makefile.am: Likewise.
---
 configure.ac          | 26 ++++++++++++++++++++++++++
 grub-core/Makefile.am |  3 +++
 2 files changed, 29 insertions(+)

diff --git a/configure.ac b/configure.ac
index 6275310..9306223 100644
--- a/configure.ac
+++ b/configure.ac
@@ -139,6 +139,7 @@ if test "x$with_platform" = x; then
     x86_64-*) platform=pc ;;
     powerpc-*) platform=ieee1275 ;;
     powerpc64-*) platform=ieee1275 ;;
+    powerpc64le-*) platform=ieee1275 ;;
     sparc64-*) platform=ieee1275 ;;
     mipsel-*) platform=loongson ;;
     mips-*) platform=arc ;;
@@ -161,6 +162,7 @@ case "$target_cpu"-"$platform" in
   x86_64-none) ;;
   x86_64-*) target_cpu=i386 ;;
   powerpc64-ieee1275) target_cpu=powerpc ;;
+  powerpc64le-ieee1275) target_cpu=powerpc ;;
 esac
 
 # Check if the platform is supported, make final adjustments.
@@ -624,6 +626,13 @@ if test "x$target_cpu" = xi386 && test "x$platform" != xemu; then
   TARGET_CFLAGS="$TARGET_CFLAGS -march=i386"
 fi
 
+if test x$target_cpu = xpowerpc && test x$ac_cv_c_bigendian = xno; then
+	LD_FORCE_LE=1
+	TARGET_CFLAGS="$TARGET_CFLAGS -mbig-endian -DNO_LIBGCC=1"
+	TARGET_CCASFLAGS="$TARGET_CCASFLAGS -mbig-endian"
+	TARGET_LDFLAGS="$TARGET_LDFLAGS -static -mbig-endian"
+fi
+
 if test "x$target_m32" = x1; then
   # Force 32-bit mode.
   TARGET_CFLAGS="$TARGET_CFLAGS -m32"
@@ -1154,6 +1163,14 @@ else
 CFLAGS="$TARGET_CFLAGS -nostdlib -Wno-error"
 fi
 CPPFLAGS="$TARGET_CPPFLAGS"
+if test x$target_cpu = xi386 || test x$target_cpu = xx86_64 || test "x$grub_cv_cc_target_clang" = xyes \
+	|| ( test x$target_cpu = xpowerpc && test x$ac_cv_c_bigendian = xno ); then
+TARGET_LIBGCC=
+else
+TARGET_LIBGCC=-lgcc
+fi
+
+LIBS="$TARGET_LIBGCC"
 
 grub_ASM_USCORE
 if test "x$TARGET_APPLE_LINKER" = x0 && test x"$platform" != xemu; then
@@ -1691,6 +1708,14 @@ if test x"$enable_werror" != xno ; then
   HOST_CFLAGS="$HOST_CFLAGS -Werror"
 fi
 
+# if not clang or power LE, use static libgcc
+if test "x$grub_cv_cc_target_clang" = xno \
+   || ! ( test x$target_cpu = xpowerpc && test x$ac_cv_c_bigendian = xno ); then
+   TARGET_LDFLAGS_STATIC_LIBGCC="-static-libgcc"
+else
+   TARGET_LDFLAGS_STATIC_LIBGCC=
+fi
+
 TARGET_CPP="$TARGET_CC -E"
 TARGET_CCAS=$TARGET_CC
 
@@ -1752,6 +1777,7 @@ AM_CONDITIONAL([COND_mips_arc], [test "(" x$target_cpu = xmips -o x$target_cpu =
 AM_CONDITIONAL([COND_sparc64_ieee1275], [test x$target_cpu = xsparc64 -a x$platform = xieee1275])
 AM_CONDITIONAL([COND_sparc64_emu], [test x$target_cpu = xsparc64 -a x$platform = xemu])
 AM_CONDITIONAL([COND_powerpc_ieee1275], [test x$target_cpu = xpowerpc -a x$platform = xieee1275])
+AM_CONDITIONAL([COND_powerpc_le], [test x$target_cpu = xpowerpc -a x$ac_cv_c_bigendian = xno])
 AM_CONDITIONAL([COND_mips], [test x$target_cpu = xmips -o x$target_cpu = xmipsel])
 AM_CONDITIONAL([COND_mipsel], [test x$target_cpu = xmipsel])
 AM_CONDITIONAL([COND_mipseb], [test x$target_cpu = xmips])
diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am
index af0c7f4..8c37782 100644
--- a/grub-core/Makefile.am
+++ b/grub-core/Makefile.am
@@ -88,6 +88,9 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/term.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/time.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/mm_private.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/net.h
+if !COND_powerpc_le
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/libgcc.h
+endif
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/memory.h
 
 if COND_i386_pc
-- 
2.4.3