Imbus/xv6-riscv-kernel
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save process name for debugging

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rsc 2007-08-08 08:38:11 +00:00
parent 7e89fb90bd
commit 7366e042d9
3 changed files with 12 additions and 5 deletions
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10
sysfile.c
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@ -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);