I've been getting compile errors lately with gcc 3.x compiling kvm 27
and 28:
gcc -I /home/dave/kvm/kvm-28/kernel/include -MMD -MF test/.access.d -g
-fomit-frame-pointer -Wall -m64 -nostdlib -o test/access.flat
-Wl,-T,flat.lds test/access.o test/cstart64.o test/printf.o test/print.o
test/smp.o
test/print.o: In function `print':
/home/dave/kvm/kvm-28/user/test/print.S:19: undefined reference to
`PSEUDO_SERIAL_PORT'
collect2: ld returned 1 exit status
Looking at 'gcc -E' output, you can see the problem:
...
.globl print
print:
push %rax
push %rsi
push %rdx
mov %rdi, %rsi
mov $PSEUDO_SERIAL_PORT, %edx
The PSEUDO_SERIAL_PORT macro isn't getting expanded for some reason.
However, it works in gcc 4.1. The following patch fixes it for me.
--- kvm-28/user/test/print.S.orig 2007-07-02 12:57:02.000000000 -0700
+++ kvm-28/user/test/print.S 2007-07-02 12:57:14.000000000 -0700
@@ -16,7 +16,7 @@
push %rdx
mov %rdi, %rsi
- mov $PSEUDO_SERIAL_PORT, %edx
+ mov $(PSEUDO_SERIAL_PORT), %edx
putchar:
cmpb $0, (%rsi)
-- Dave
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