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Using gcc-3.4 to compile u-boot on powerpc

U-Boot-Users Murray Jensen 1 participant 1 message Jun 23, 2003

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Hi All, a small but important thing... I am using the latest gcc from cvs (3.4 20030608 (experimental)) and if you build the cross compiler for a powerpc/linux target, it leaves out the "fixup" stuff for the "-mrelocatable" command line option. If you then want to use that cross compiler to build "u-boot", it stuffs up with messages from the Assembler that looks something like this (on certain C files):

... Error: Relocation cannot be done when using -mrelocatable

Since "-mrelocatable" is usually not used for Linux programs, I can't see why they did this. Rather than have two different cross compilers, one for linux and one for "other", which you use to compile u-boot, I chose a simple fix - patch the file "gcc/config/rs6000/linux.h" as follows:

06/20 01:28:53 renamed from 06/13 16:41:53 1.3 +2 -1
@@ -84,7 +84,8 @@
 #define TARGET_64BIT 0
   
 /* We don't need to generate entries in .fixup.  */
-#undef RELOCATABLE_NEEDS_FIXUP
+/* well I do need them! */
+#define RELOCATABLE_NEEDS_FIXUP
  
 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
 

Hope this helps someone. Cheers!

								Murray...

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