sparc-elf-ld: section .rodata [00000000ffd08000 -> 00000000ffd0a129]
overlaps section .text [00000000ffd00000 -> 00000000ffd08077]
This means that the space reserved for code is full. You can adjust it like
this:
diff -ru proll-patch-16/qemu/Makefile proll-patch-16b/qemu/Makefile
--- proll-patch-16/qemu/Makefile 2005-08-14 10:25:06.000000000 +0000
+++ proll-patch-16b/qemu/Makefile 2005-11-20 12:23:46.000000000 +0000
@@ -27,8 +27,8 @@
# want to shift it to form a PGD entry. A relocatable label will not work.
# Linux kernel expects us to be at LINUX_OPPROM_BEGVM
<asm-sparc/openprom.h>.
PROLBASE = 0xffd00000
-PROLRODATA = 0xffd08000
-PROLDATA = 0xffd0b000
+PROLRODATA = 0xffd09000
+PROLDATA = 0xffd0c000
PROLSIZE = 240*1024
# Linux
Also, some additional background info. I am actually using the -nographic
option. This project is for a grad class on computer architecture. The
prof. says he has a sparc processor implemented on an fpga and wants to
load linux on it, but it doesn't have a hard drive or network connection,
so that is why I'm writing a serial loader.
Real serial port hardware needs a bit more initialising than Qemu, for
example programming the baud rate. In the original JavaStation case where
Proll was first used, the real OBP did this before Proll booted, so Proll
didn't have to do everything.
There are probably other similar gaps elsewhere, like setting up DRAM
controllers, clearing special boot modes, initialising bridge devices,
loading firmware etc. If you have complete specs for the hardware, these
should not be too difficult to add if even necessary.
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