add kill

diff --git a/Makefile b/Makefile
index 9a2db844a9ba766a20ba053369c30e43c15396da..2606f4c19b630067ed1be57471a1dddc0c0387db 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -84,9 +84,9 @@ _init : init.o $(ULIB)
        $(OBJDUMP) -S _init > init.asm
        $(OBJDUMP) -t _init | awk '/SYMBOL TABLE/ { go=1; next } go {print $$1, $$NF}' >init.sym
 
-_sh : sh.o $(ULIB)
-       $(LD) -N -e main -Ttext 0 -o _sh sh.o $(ULIB)
-       $(OBJDUMP) -S _sh > sh.asm
+_kill : kill.o $(ULIB)
+       $(LD) -N -e main -Ttext 0 -o _kill kill.o $(ULIB)
+       $(OBJDUMP) -S _kill > kill.asm
 
 _ls : ls.o $(ULIB)
        $(LD) -N -e main -Ttext 0 -o _ls ls.o $(ULIB)
@@ -100,6 +100,10 @@ _rm : rm.o $(ULIB)
        $(LD) -N -e main -Ttext 0 -o _rm rm.o $(ULIB)
        $(OBJDUMP) -S _rm > rm.asm
 
+_sh : sh.o $(ULIB)
+       $(LD) -N -e main -Ttext 0 -o _sh sh.o $(ULIB)
+       $(OBJDUMP) -S _sh > sh.asm
+
 _zombie: zombie.o $(ULIB)
        $(LD) -N -e main -Ttext 0 -o _zombie zombie.o $(ULIB)
        $(OBJDUMP) -S _zombie > zombie.asm
@@ -107,7 +111,7 @@ _zombie: zombie.o $(ULIB)
 mkfs : mkfs.c fs.h
        cc -o mkfs mkfs.c
 
-UPROGS=usertests _echo _cat _init _sh _ls _mkdir _rm _zombie
+UPROGS=usertests _echo _cat _init _kill _ls _mkdir _rm _sh _zombie
 fs.img : mkfs README $(UPROGS)
        ./mkfs fs.img README $(UPROGS)
 

diff --git a/kill.c b/kill.c
new file mode 100644 (file)
index 0000000..2d69d4d
--- /dev/null
+++ b/kill.c
@@ -0,0 +1,17 @@
+#include "types.h"
+#include "stat.h"
+#include "user.h"
+
+int
+main(int argc, char **argv)
+{
+  int i;
+       
+  if(argc < 1){
+    printf(2, "usage: kill pid...\n");
+    exit();
+  }
+  for(i=1; i<argc; i++)
+    kill(atoi(argv[i]));
+  exit();
+}