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Message
From: Mark<mark@j...>
Date: Sat Feb 23 14:39:21 CET 2008
Subject: [openrisc] or1k's simulation
Yuping wrote:
> hi:
> I installed the toolchain :drp-0.6 toolchain (or32-elf-**) and goto
> orp_soc/sw/support/ fold and do make; next, I goto orp_soc/sw/basic/ fold
> and do make, it doesnot work, error messages are:
>
> or32-elf-ld -T ../support/orp.ld basic.o ../support/reset-nocache.o -o
> basic-nocache.or32 ../support/libsupport.a
> basic.o: In function `_T7':
> basic.S:(.text+0x54c): undefined reference to `_exit'
> ../support/reset-nocache.o: In function `_start':
> reset.S:(.text+0xec): undefined reference to `_reset'
> ../support/libsupport.a(support.o): In function `_read_timer':
> support.c:(.text+0x94): undefined reference to `_gettimeofday'
> support.c:(.text+0xa4): undefined reference to `___mulsi3'
> ../support/libsupport.a(support.o): In function `_report':
> support.c:(.text+0xe0): undefined reference to `_printf'
> make: *** [basic-nocache] Error 1
>
>
> Does anybody encounter this problem? I want to generate *.hex file and do
> hardware simulation, pls help me
The orp_soc code wasn't written to work with the or32-elf- toochain in
the DRP tarball. Try writing a simple test program of your own and
compiling.
You might have luck with the orp_soc code if you use -nostdlib
-nostartfiles or something like that (I assume it's written to work
without a C library, but I really don't know).
Look at the orp_soc code and figure out where it thinks it should be
getting printf(). The symbols like _exit, _reset, _start are probably
just mangled differently -- try adding or removing underscores at the
beginning of the symbol in the .S files. I haven't looked at orp_soc
code, so I really don't know what's required. Still, I hope that helps
a little.
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