cc -D__KERNEL__ -I/home/phill/linux-2.4.28/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -U__i386__ -Ui386 -DUM_FASTCALL -g -D__arch_um__ -DSUBARCH="i386" -D_LARGEFILE64_SOURCE -I/home/phill/linux-2.4.28/arch/um/include -Derrno=kernel_errno -I/home/phill/linux-2.4.28/arch/um/kernel/tt/include -I/home/phill/linux-2.4.28/arch/um/kernel/skas/include -fno-unit-at-a-time -nostdinc -iwithprefix include -DKBUILD_BASENAME=binfmt_elf -save-temps -c -o binfmt_elf.o binfmt_elf.c
In file included from /home/phill/linux-2.4.28/include/asm/byteorder.h:5,
from /home/phill/linux-2.4.28/include/linux/kernel.h:16,
from /home/phill/linux-2.4.28/include/asm/arch/system.h:6,
from /home/phill/linux-2.4.28/include/asm/system-generic.h:5,
from /home/phill/linux-2.4.28/include/asm/system.h:5,
from /home/phill/linux-2.4.28/include/linux/spinlock.h:7,
from /home/phill/linux-2.4.28/include/linux/module.h:13,
from binfmt_elf.c:13:
/home/phill/linux-2.4.28/include/asm/arch/byteorder.h:14: warning: type qualifiers ignored on function return type
/home/phill/linux-2.4.28/include/asm/arch/byteorder.h:30: warning: type qualifiers ignored on function return type
In file included from /home/phill/linux-2.4.28/include/linux/byteorder/little_endian.h:12,
from /home/phill/linux-2.4.28/include/asm/arch/byteorder.h:66,
from /home/phill/linux-2.4.28/include/asm/byteorder.h:5,
from /home/phill/linux-2.4.28/include/linux/kernel.h:16,
from /home/phill/linux-2.4.28/include/asm/arch/system.h:6,
from /home/phill/linux-2.4.28/include/asm/system-generic.h:5,
from /home/phill/linux-2.4.28/include/asm/system.h:5,
from /home/phill/linux-2.4.28/include/linux/spinlock.h:7,
from /home/phill/linux-2.4.28/include/linux/module.h:13,
from binfmt_elf.c:13:
/home/phill/linux-2.4.28/include/linux/byteorder/swab.h:160: warning: type qualifiers ignored on function return type
/home/phill/linux-2.4.28/include/linux/byteorder/swab.h:173: warning: type qualifiers ignored on function return type
/home/phill/linux-2.4.28/include/linux/byteorder/swab.h:186: warning: type qualifiers ignored on function return type
/home/phill/linux-2.4.28/include/linux/byteorder/swab.h:200: warning: type qualifiers ignored on function return type
binfmt_elf.c: In function ‘load_elf_binary’:
binfmt_elf.c:828: error: invalid lvalue in assignment
binfmt_elf.c:828: error: invalid lvalue in assignment
binfmt_elf.c:828: error: invalid lvalue in assignment
binfmt_elf.c:828: error: invalid lvalue in assignment
binfmt_elf.c:828: error: invalid lvalue in assignment
binfmt_elf.c:828: error: invalid lvalue in assignment
binfmt_elf.c:828: error: invalid lvalue in assignment
so I looked at the preprocessor output and it showed this for the macro expansion (which looks correct??):
do { (mode_tt ? (*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[32]))) : ((((&(regs)->regs)->skas.regs)[0]))) = 0; (mode_tt ? (*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[40]))) : ((((&(regs)->regs)->skas.regs)[1]))) = 0; (mode_tt ? (*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[36]))) : ((((&(regs)->regs)->skas.regs)[2]))) = 0; (mode_tt ? (*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[20]))) : ((((&(regs)->regs)->skas.regs)[3]))) = 0; (mode_tt ? (*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[16]))) : ((((&(regs)->regs)->skas.regs)[4]))) = 0; (mode_tt ? (*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[24]))) : ((((&(regs)->regs)->skas.regs)[5]))) = 0; (mode_tt ? (*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[44]))) : ((((&(regs)->regs)->skas.regs)[6]))) = 0; } while(0);
which I hacked at to produce this (which compiles - don't know if it works or is equivalent even):
if (mode_tt)
{
(*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[32]))) = 0;
(*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[40]))) = 0;
(*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[36]))) = 0;
(*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[20]))) = 0;
(*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[16]))) = 0;
(*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[24]))) = 0;
(*((unsigned long *) &(((char *) (((&(regs)->regs)->tt.sc)))[44]))) = 0;
} else {
((((&(regs)->regs)->skas.regs)[0])) = 0;
((((&(regs)->regs)->skas.regs)[1])) = 0;
((((&(regs)->regs)->skas.regs)[2])) = 0;
((((&(regs)->regs)->skas.regs)[3])) = 0;
((((&(regs)->regs)->skas.regs)[4])) = 0;
((((&(regs)->regs)->skas.regs)[5])) = 0;
((((&(regs)->regs)->skas.regs)[6])) = 0;
};
Cheers
Phill.
