From 2047f2238c82d1c748ab94ca653b325ce05a9b3f Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Mon, 6 Jul 2015 20:42:34 +0200
Subject: xxx avoid alloca

---
 kern/bootstrap.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/kern/bootstrap.c b/kern/bootstrap.c
index aad0fb1..d95395c 100644
--- a/kern/bootstrap.c
+++ b/kern/bootstrap.c
@@ -177,8 +177,8 @@ void bootstrap_create(void)
 	   serverboot did, so an old Hurd and boot script previously
 	   used with serverboot can be used directly with this kernel.  */
 
-	char *flag_string = alloca(1024);
-	char *root_string = alloca(1024);
+	char *flag_string = kalloc(1024);
+	char *root_string = kalloc(1024);
 
 	/*
 	 * Get the (compatibility) boot flags and root name strings.
@@ -209,7 +209,7 @@ void bootstrap_create(void)
 	for (ep = environ; *ep != 0; ++ep)
 	  {
 	    size_t len = strlen (*ep) + 1;
-	    char *var = memcpy (alloca (len), *ep, len);
+	    char *var = memcpy (kalloc (len), *ep, len);
 	    char *val = strchr (var, '=');
 	    *val++ = '\0';
 	    losers = boot_script_set_variable (var, VAL_STR, (long) val);
@@ -225,7 +225,7 @@ void bootstrap_create(void)
 	   oskit's environ in the oskit-mach case (above).  */
 
 	int len = strlen (kernel_cmdline) + 1;
-	char *s = memcpy (alloca (len), kernel_cmdline, len);
+	char *s = memcpy (kalloc (len), kernel_cmdline, len);
 	char *word;
 	while ((word = strsep (&s, " \t")) != 0)
 	  {
@@ -683,7 +683,7 @@ $0 ${boot-args} ${host-port} ${device-port} ${root-device} $(task-create) $(task
 	  if (kernel_cmdline[0] != '\0')
 	    {
 	      static const char cmdline_var[] = "MULTIBOOT_CMDLINE=";
-	      envp[0] = alloca (sizeof cmdline_var + strlen (kernel_cmdline));
+	      envp[0] = kalloc (sizeof cmdline_var + strlen (kernel_cmdline));
 	      memcpy (envp[0], cmdline_var, sizeof cmdline_var - 1);
 	      strcpy (envp[0] + sizeof cmdline_var - 1, kernel_cmdline);
 	    }
-- 
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