loader: Hide the preloader from the ps output.
diff --git a/loader/preloader.c b/loader/preloader.c
index 1ca6d83..9480ca9 100644
--- a/loader/preloader.c
+++ b/loader/preloader.c
@@ -287,6 +287,14 @@
return ret;
}
+static inline int wld_prctl( int code, int arg )
+{
+ int ret;
+ __asm__ __volatile__( "pushl %%ebx; movl %2,%%ebx; int $0x80; popl %%ebx"
+ : "=a" (ret) : "0" (SYS_prctl), "r" (code), "c" (arg) );
+ return SYSCALL_RET(ret);
+}
+
/* replacement for libc functions */
@@ -871,6 +879,26 @@
return 0;
}
+/* set the process name if supported */
+static void set_process_name( int argc, char *argv[] )
+{
+ unsigned int i, off;
+ char *p, *name, *end;
+
+ /* set the process short name */
+ for (p = name = argv[1]; *p; p++) if (p[0] == '/' && p[1]) name = p + 1;
+ if (wld_prctl( 15 /* PR_SET_NAME */, (int)name ) == -1) return;
+
+ /* find the end of the argv array and move everything down */
+ end = argv[argc - 1];
+ while (*end) end++;
+ off = argv[1] - argv[0];
+ for (p = argv[1]; p <= end; p++) *(p - off) = *p;
+ wld_memset( end - off, 0, off );
+ for (i = 1; i < argc; i++) argv[i] -= off;
+}
+
+
/*
* wld_start
*
@@ -956,6 +984,7 @@
delete_av[i].a_type = AT_NULL;
/* get rid of first argument */
+ set_process_name( *pargc, argv );
pargc[1] = pargc[0] - 1;
*stack = pargc + 1;
