Changes between Version 4 and Version 5 of Dev/KernelHack/COINS/worklog/201110

Timestamp:

Oct 28, 2011 1:52:44 PM (13 years ago)

Author:

mitty

Comment:

--

Dev/KernelHack/COINS/worklog/201110

@@ -1245 +1245 @@
  * viola04:linux-2.6.35.14 s0711489$ svn cp i386/arch/x86/kernel/new_hello.c x86_64/arch/x86/kernel/
  * viola04:linux-2.6.35.14 s0711489$ svn merge i386/include/linux/syscalls.h x86_64/include/linux/syscalls.h -r 1358:1359
+
+ = 10/26 =
+ == add new system call (x86_64) (cont) ==
+ * viola06:x86_64 s0711489$ svn revert include/linux/syscalls.h arch/x86/kernel/new_hello.c arch/x86/include/asm/new_hello.h
+ * viola06:x86_64 s0711489$ rm arch/x86/kernel/new_hello.c arch/x86/include/asm/new_hello.h
+
+ * viola06:linux-2.6.35.14 s0711489$ svn merge i386/arch/ x86_64/arch/ -r1352:1359
+ * viola06:linux-2.6.35.14 s0711489$ svn merge i386/include/ x86_64/include/ -r1358:1359
+ * viola04:x86_64 s0711489$ vim arch/x86/include/asm/unistd_64.h
+{{{
+Index: include/linux/syscalls.h
+===================================================================
+--- include/linux/syscalls.h    (revision 1367)
++++ include/linux/syscalls.h    (revision 1368)
+@@ -826,4 +826,6 @@
+                        unsigned long fd, unsigned long pgoff);
+ asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
+ 
++asmlinkage long sys_new_hello(int i);
++
+ #endif
+Index: include
+===================================================================
+--- include     (revision 1367)
++++ include     (revision 1368)
+
+Property changes on: include
+___________________________________________________________________
+Added: svn:mergeinfo
+   Merged /trunk/coursework/KernelHack/linux-2.6.35.14/i386/include:r1359
+Index: arch/x86/kernel/syscall_table_32.S
+===================================================================
+--- arch/x86/kernel/syscall_table_32.S  (revision 1367)
++++ arch/x86/kernel/syscall_table_32.S  (revision 1368)
+@@ -337,3 +337,4 @@
+        .long sys_rt_tgsigqueueinfo     /* 335 */
+        .long sys_perf_event_open
+        .long sys_recvmmsg
++       .long sys_new_hello
+Index: arch/x86/kernel/Makefile
+===================================================================
+--- arch/x86/kernel/Makefile    (revision 1367)
++++ arch/x86/kernel/Makefile    (revision 1368)
+@@ -131,3 +131,5 @@
+        obj-$(CONFIG_PCI_MMCONFIG)      += mmconf-fam10h_64.o
+        obj-y                           += vsmp_64.o
+ endif
++
++obj-y                          += new_hello.o
+Index: arch/x86/kernel/new_hello.c
+===================================================================
+--- arch/x86/kernel/new_hello.c (revision 0)
++++ arch/x86/kernel/new_hello.c (revision 1368)
+@@ -0,0 +1,7 @@
++#include <linux/kernel.h>
++#include <linux/syscalls.h>
++
++SYSCALL_DEFINE1(new_hello, int, i) {
++        printk(KERN_DEBUG "new_hello() syscall with %d\n", i);
++        return i;
++}
+Index: arch/x86/include/asm/unistd_32.h
+===================================================================
+--- arch/x86/include/asm/unistd_32.h    (revision 1367)
++++ arch/x86/include/asm/unistd_32.h    (revision 1368)
+@@ -343,10 +343,11 @@
+ #define __NR_rt_tgsigqueueinfo 335
+ #define __NR_perf_event_open   336
+ #define __NR_recvmmsg          337
++#define __NR_new_hello         338
+ 
+ #ifdef __KERNEL__
+ 
+-#define NR_syscalls 338
++#define NR_syscalls 339
+ 
+ #define __ARCH_WANT_IPC_PARSE_VERSION
+ #define __ARCH_WANT_OLD_READDIR
+Index: arch/x86/include/asm/new_hello.h
+===================================================================
+--- arch/x86/include/asm/new_hello.h    (revision 0)
++++ arch/x86/include/asm/new_hello.h    (revision 1368)
+@@ -0,0 +1,7 @@
++#ifndef _ASM_X86_NEW_HELLO_H
++#define _ASM_X86_NEW_HELLO_H
++
++#include <asm/unistd.h>
++#define new_hello(x) syscall(__NR_new_hello, x)
++
++#endif /* _ASM_X86_NEW_HELLO_H */
+Index: arch/x86/include/asm/unistd_64.h
+===================================================================
+--- arch/x86/include/asm/unistd_64.h    (revision 1367)
++++ arch/x86/include/asm/unistd_64.h    (revision 1368)
+@@ -663,6 +663,8 @@
+ __SYSCALL(__NR_perf_event_open, sys_perf_event_open)
+ #define __NR_recvmmsg                          299
+ __SYSCALL(__NR_recvmmsg, sys_recvmmsg)
++#define __NR_new_hello                         300
++__SYSCALL(__NR_new_hello, sys_new_hello)
+ 
+ #ifndef __NO_STUBS
+ #define __ARCH_WANT_OLD_READDIR
+Index: arch
+===================================================================
+--- arch        (revision 1367)
++++ arch        (revision 1368)
+
+Property changes on: arch
+___________________________________________________________________
+Added: svn:mergeinfo
+   Merged /trunk/coursework/KernelHack/linux-2.6.35.14/i386/arch:r1353-1359
+}}}
+
+ * viola06:x86_64 s0711489$ make -j 16
+{{{
+Kernel: arch/x86/boot/bzImage is ready  (#2)
+}}}
+ * viola06:x86_64 s0711489$ make modules
+
+
+ * s0711489@ubuntu-lucid64:~$ sudo /mnt/hgfs/tools/install.sh
+
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ uname -a
+{{{
+Linux ubuntu-lucid64 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:07:13 UTC 2011 x86_64 GNU/Linux
+}}}
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ gcc -I /lib/modules/2.6.35.14/build/arch/x86/include/ new_hello.c
+{{{
+new_hello.c: In function ‘main’:
+new_hello.c:9: warning: format ‘%d’ expects type ‘int’, but argument 3 has type ‘long int’
+}}}
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ ./a.out
+{{{
+new_hello(1) -> -1
+}}}
+  * reboot 前はsyscallが存在しない
+
+ * s0711489@ubuntu-lucid64:~$ sudo reboot
+
+ * s0711489@ubuntu-lucid64:~$ uname -a
+{{{
+Linux ubuntu-lucid64 2.6.35.14 #2 SMP Wed Oct 26 13:06:41 JST 2011 x86_64 GNU/Linux
+}}}
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ ./a.out
+{{{
+new_hello(1) -> 1
+}}}
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ ./a.out 2
+{{{
+new_hello(2) -> 2
+}}}
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ ./a.out 2 3
+{{{
+new_hello(3) -> 3
+}}}
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ ./a.out 2 3 4
+{{{
+new_hello(4) -> 4
+}}}
+ * s0711489@ubuntu-lucid64:~/KernelHack/03$ tail /var/log/kern.log
+{{{
+Oct 26 13:12:40 ubuntu-lucid64 kernel: [   40.542158] new_hello() syscall with 1
+Oct 26 13:12:42 ubuntu-lucid64 kernel: [   42.668465] new_hello() syscall with 2
+Oct 26 13:12:43 ubuntu-lucid64 kernel: [   43.908292] new_hello() syscall with 3
+Oct 26 13:12:45 ubuntu-lucid64 kernel: [   45.645548] new_hello() syscall with 4
+}}}