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authorJarkko Sakkinen <jarkko.sakkinen@intel.com>2012-05-08 21:22:25 +0300
committerH. Peter Anvin <hpa@linux.intel.com>2012-05-08 11:41:48 -0700
commitb3266bd6ff52efb9e57c7fbfff4c8f7363dfaab3 (patch)
tree66f16447ee345e21372fe0fe35b987b16c8061c0 /arch/x86/realmode/Makefile
parent433de739bbc22a5b2c87602116566ce27e3b4cab (diff)
x86, realmode: realmode.bin infrastructure
Create realmode.bin and realmode.relocs files. Piggy pack them into relocatable object that will be included into .init.data section of the main kernel image. The first file includes binary image of the real-mode code. The latter file includes all relocations. The layout of the binary image is specified in realmode.lds.S. The makefile generates pa_ prefixed symbols for each exported global. These are used in 32-bit code and in realmode header to define symbols that need to be relocated. Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Link: http://lkml.kernel.org/r/1336501366-28617-3-git-send-email-jarkko.sakkinen@intel.com Originally-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/realmode/Makefile')
-rw-r--r--arch/x86/realmode/Makefile20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/realmode/Makefile b/arch/x86/realmode/Makefile
new file mode 100644
index 000000000000..f22a4f8d99d6
--- /dev/null
+++ b/arch/x86/realmode/Makefile
@@ -0,0 +1,20 @@
+#
+# arch/x86/realmode/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+#
+
+subdir- := rm
+
+obj-y += rmpiggy.o
+
+$(obj)/rmpiggy.o: $(obj)/rm/realmode.relocs $(obj)/rm/realmode.bin
+
+$(obj)/rm/realmode.bin: FORCE
+ $(Q)$(MAKE) $(build)=$(obj)/rm $@
+
+$(obj)/rm/realmode.relocs: FORCE
+ $(Q)$(MAKE) $(build)=$(obj)/rm $@