...Hello!
After installing SDE toolkit onto Linux box I tried to compile the YAMON bootloader source code (version of YAMON is 2.00). Few errors
arised:
The lines in mips.h that arise these warnings are the following:
// #define AU1000 0x00030100 //#define AU1000 0x01030200 //#define AU1000_2_1 0x00030200
The original MIPS assembler used '#' as a comment character. Using an ANSI style C preprocessor where preprocessor directives do not need to be at the beginning of the line can can cause problems with files using this type of comment. For this reason sde-gcc tells the preprocessor to run in "traditional" mode which disables various ANSI features. In particular, the preprocessor in traditional mode does not accept '//' style comments.
#define t1 $9 #define mem_sdconfiga 0x0840 #define MEM_SDCONFIGA_DDR 0x9030060A #define MEM_SDREFCFG_D_DDR MEM_SDCONFIGA_DDR
li t1, MEM_SDREFCFG_D_DDR sw t1, mem_sdconfiga(t0) sync
Compiler thinks 'li t1, MEM_SDREFCFG_D_DDR' is 'bad expression', may be it guesses MEM_SDREFCFG_D_DDR is not defined correctly?
If the '#define' was not at the beginning of the line the preprocessor in traditional mode will ignore them and the assembler would end up treating these lines as comments which would cause this error.
I've attached a patch that works on a MIPS release of the YAMON-2.00 sources to override the preprocessor mode for assembler files. See if it helps...
Chris
-- Chris Dearman The Fruit Farm, Ely Road voice +44 1223 706206 MIPS Technologies (UK) Chittering, Cambs, CB5 9PH fax +44 1223 706250
--- bin/makefile.orig Tue Jul 20 19:49:19 2004 +++ bin/makefile Tue Jul 20 19:49:49 2004 @@ -288,7 +288,7 @@ # SDE toolchain does not allow a construct like ".bss", it requires # .section bss instead. ifeq ($(TOOLCHAIN),sde) -CC_OPTS_A = $(CC_OPTS) -D_ASSEMBLER_ -D_SDE_ +CC_OPTS_A = $(CC_OPTS) -D_ASSEMBLER_ -D_SDE_ -fno-traditional-cpp else CC_OPTS_A = $(CC_OPTS) -D_ASSEMBLER_ endif
