save process name for debugging

1 files changed, 8 insertions, 2 deletions

diff --git a/sysfile.c b/sysfile.c
index 45731f9..475c907 100644
--- a/sysfile.c
+++ b/sysfile.c
@@ -322,7 +322,7 @@ sys_exec(void)
   struct elfhdr elf;
   struct proghdr ph;
   char *mem = 0;
-  char *path, *s;
+  char *path, *s, *last;
   uint argv;
   
   if(argstr(0, &path) < 0 || argint(1, (int*)&argv) < 0)
@@ -399,6 +399,12 @@ sys_exec(void)
   }
   *(uint*)(mem + p1) = 0;
 
+  // Save name for debugging.
+  for(last=s=path; *s; s++)
+    if(*s == '/')
+      last = s+1;
+  safestrcpy(cp->name, last, sizeof cp->name);
+
   // commit to the new image.
   kfree(cp->mem, cp->sz);
   cp->sz = sz;
@@ -419,7 +425,7 @@ sys_exec(void)
   }
 
   iput(ip);
-
+  
   cp->tf->eip = elf.entry;
   cp->tf->esp = sp;
   setupsegs(cp);