2014-01-05  Magnus Granberg  <zorry@gentoo.org>

		* gcc/Makefile.in	Add -fno-PIE. to ALL_CFLAGS and
		ALL_CXXFLAGS if enable_esp yes.
		Echo enable_esp and enable_crtbeginP to tmp-libgcc.mvars.
		* libgcc/Makefile.in	Add crtbeginP.o to EXTRA_PARTS if enable_crtbeginP yes
		We add new file crtbeginP.o if enable_crtbeginP yes
		Add -fno-PIE. to CRTSTUFF_CFLAGS.
		Disable -fstack-check

--- a/gcc/Makefile.in	2011-11-09 02:20:14.000000000 +0100
+++ b/gcc/Makefile.in	2011-12-24 22:28:08.864804375 +0100
@@ -247,6 +247,14 @@ LINKER_FLAGS = $(CFLAGS)
 endif
 endif
 
+# We don't want to compile the compiler with -fPIE, it make PCH fail.
+enable_esp = @enable_esp@
+ifeq ($(enable_esp),yes)
+ESP_NOPIE_CFLAGS = -fno-PIE
+else
+ESP_NOPIE_CFLAGS=
+endif
+
 # -------------------------------------------
 # Programs which operate on the build machine
 # -------------------------------------------
@@ -974,12 +982,13 @@ INTERNAL_CFLAGS = -DIN_GCC @CROSS@
 
 # This is the variable actually used when we compile. If you change this,
 # you probably want to update BUILD_CFLAGS in configure.ac
-ALL_CFLAGS = $(T_CFLAGS) $(CFLAGS-$@) \
+ALL_CFLAGS = $(ESP_NOPIE_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) \
   $(CFLAGS) $(INTERNAL_CFLAGS) $(COVERAGE_FLAGS) $(WARN_CFLAGS) @DEFS@
 
 # The C++ version.
-ALL_CXXFLAGS = $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS) $(INTERNAL_CFLAGS) \
-  $(COVERAGE_FLAGS) $(NOEXCEPTION_FLAGS) $(WARN_CXXFLAGS) @DEFS@
+ALL_CXXFLAGS = $(ESP_NOPIE_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS) \
+  $(INTERNAL_CFLAGS) $(COVERAGE_FLAGS) $(NOEXCEPTION_FLAGS) \
+  $(WARN_CXXFLAGS) @DEFS@
 
 # Likewise.  Put INCLUDES at the beginning: this way, if some autoconf macro
 # puts -I options in CPPFLAGS, our include files in the srcdir will always
@@ -1814,6 +1823,8 @@ libgcc.mvars: config.status Makefile spe
 	echo GCC_CFLAGS = '$(GCC_CFLAGS)' >> tmp-libgcc.mvars
 	echo INHIBIT_LIBC_CFLAGS = '$(INHIBIT_LIBC_CFLAGS)' >> tmp-libgcc.mvars
 	echo TARGET_SYSTEM_ROOT = '$(TARGET_SYSTEM_ROOT)' >> tmp-libgcc.mvars
+	echo enable_esp = '$(enable_esp)' >> tmp-libgcc.mvars
+	echo enable_crtbeginP = '@enable_crtbeginP@' >> tmp-libgcc.mvars
 
 	mv tmp-libgcc.mvars libgcc.mvars
 
--- a/libgcc/Makefile.in	2011-11-22 04:01:02.000000000 +0100
+++ b/libgcc/Makefile.in	2011-12-25 15:18:22.449610631 +0100
@@ -219,6 +219,17 @@ else
 DECNUMINC =
 endif
 
+ifeq ($(enable_esp),yes)
+ESP_NOPIE_CFLAGS = -fno-PIE
+else
+ESP_NOPIE_CFLAGS=
+endif
+
+# We add crtbeginP.o to the EXTRA_PARTS list if enable_crtbeginP = yes
+ifeq ($(enable_crtbeginP),yes)
+EXTRA_PARTS += crtbeginP.o
+endif
+
 # Options to use when compiling libgcc2.a.
 #
 LIBGCC2_DEBUG_CFLAGS = -g
@@ -225,7 +225,7 @@ endif
 LIBGCC2_DEBUG_CFLAGS = -g
 LIBGCC2_CFLAGS = -O2 $(LIBGCC2_INCLUDES) $(GCC_CFLAGS) $(HOST_LIBGCC2_CFLAGS) \
 		 $(LIBGCC2_DEBUG_CFLAGS) -DIN_LIBGCC2 \
-		 -fbuilding-libgcc -fno-stack-protector \
+		 -fbuilding-libgcc -fno-stack-protector -fstack-check=no \
 		 $(INHIBIT_LIBC_CFLAGS)
 
 # Additional options to use when compiling libgcc2.a.
@@ -298,7 +298,7 @@ CRTSTUFF_CFLAGS = -O2 $(GCC_CFLAGS) $(IN
   -finhibit-size-directive -fno-inline -fno-exceptions \
   -fno-zero-initialized-in-bss -fno-toplevel-reorder -fno-tree-vectorize \
   -fbuilding-libgcc -fno-stack-protector $(FORCE_EXPLICIT_EH_REGISTRY) \
-  $(INHIBIT_LIBC_CFLAGS)
+  -fstack-check=no $(ESP_NOPIE_CFLAGS) $(INHIBIT_LIBC_CFLAGS)
 
 # Extra flags to use when compiling crt{begin,end}.o.
 CRTSTUFF_T_CFLAGS =
@@ -966,6 +977,13 @@ crtendS$(objext): $(srcdir)/crtstuff.c
 # This is a version of crtbegin for -static links.
 crtbeginT$(objext): $(srcdir)/crtstuff.c
 	$(crt_compile) $(CRTSTUFF_T_CFLAGS) -c $< -DCRT_BEGIN -DCRTSTUFFT_O
+
+# This is a version of crtbegin for -static -fPIE links.
+ifeq ($(enable_crtbeginP),yes)
+crtbeginP$(objext): $(srcdir)/crtstuff.c
+	$(crt_compile) $(CRTSTUFF_T_CFLAGS_S) \
+	  -c $< -DCRT_BEGIN -DCRTSTUFFT_O -DCRTSTUFFS_O
+endif
 
 ifeq ($(enable_vtable_verify),yes)
 # These are used in vtable verification; see comments in source files for