[U-Boot-Users] [PPCBoot-users] Using gcc-3.4 to compile u-boot on powerpc
Murray.Jensen at csiro.au
Mon Jun 23 04:06:53 CEST 2003
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:
--- linux.h 2003/06/13 16:41:53 1.3
+++ linux.h 2003/06/20 01:28:53
@@ -84,7 +84,8 @@
#define TARGET_64BIT 0
/* We don't need to generate entries in .fixup. */
+/* well I do need them! */
#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
Hope this helps someone. Cheers!
Murray Jensen, CSIRO Manufacturing & Infra. Tech. Phone: +61 3 9662 7763
Locked Bag No. 9, Preston, Vic, 3072, Australia. Fax: +61 3 9662 7853
Internet: Murray.Jensen at csiro.au
Hymod project: http://www.msa.cmst.csiro.au/projects/Hymod/
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