Commit f5738ceed46782aea7663d62cb6398eb05fc4ce0 removed a bit too much,
resulting in the following compile error:
<-- snip -->
...
CC arch/v850/kernel/process.o
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c: In function 'kernel_thread':
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:77: error: syntax error before 'SYSCALL_NUM'
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:78: error: syntax error before 'SYSCALL_ARG0'
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:79: error: syntax error before 'SYSCALL_RET'
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:86: error: 'arg0' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:86: error: (Each undeclared identifier is reported only once
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:86: error: for each function it appears in.)
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:87: error: 'syscall' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:88: error: syntax error before 'SYSCALL_SHORT_TRAP'
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:93: error: 'ret' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/v850/kernel/process.c:97: error: syntax error before 'SYSCALL_SHORT_TRAP'
make[2]: *** [arch/v850/kernel/process.o] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <[email protected]>
---
include/asm-v850/unistd.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
--- linux-2.6.22-rc6-mm1/include/asm-v850/unistd.h.old 2007-07-07 22:30:01.000000000 +0200
+++ linux-2.6.22-rc6-mm1/include/asm-v850/unistd.h 2007-07-07 22:31:55.000000000 +0200
@@ -206,6 +206,36 @@
#ifdef __KERNEL__
+/* Syscall protocol:
+ Syscall number in r12, args in r6-r9, r13-r14
+ Return value in r10
+ Trap 0 for `short' syscalls, where all the args can fit in function
+ call argument registers, and trap 1 when there are additional args in
+ r13-r14. */
+
+#define SYSCALL_NUM "r12"
+#define SYSCALL_ARG0 "r6"
+#define SYSCALL_ARG1 "r7"
+#define SYSCALL_ARG2 "r8"
+#define SYSCALL_ARG3 "r9"
+#define SYSCALL_ARG4 "r13"
+#define SYSCALL_ARG5 "r14"
+#define SYSCALL_RET "r10"
+
+#define SYSCALL_SHORT_TRAP "0"
+#define SYSCALL_LONG_TRAP "1"
+
+/* Registers clobbered by any syscall. This _doesn't_ include the syscall
+ number (r12) or the `extended arg' registers (r13, r14), even though
+ they are actually clobbered too (this is because gcc's `asm' statement
+ doesn't allow a clobber to be used as an input or output). */
+#define SYSCALL_CLOBBERS "r1", "r5", "r11", "r15", "r16", \
+ "r17", "r18", "r19"
+
+/* Registers clobbered by a `short' syscall. This includes all clobbers
+ except the syscall number (r12). */
+#define SYSCALL_SHORT_CLOBBERS SYSCALL_CLOBBERS, "r13", "r14"
+
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_STAT64
-
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