Remove second zero of BSS

[yaboot.git] / second / yaboot.c

diff --git a/second/yaboot.c b/second/yaboot.c
index 9075db1bf004fdaab7625683408844e97358d62f..b02070e5c60ca80b539cdb1170d690b4eb210072 100644 (file)
--- a/second/yaboot.c
+++ b/second/yaboot.c
@@ -58,6 +58,8 @@
 #define CONFIG_FILE_NAME       "yaboot.conf"
 #define CONFIG_FILE_MAX                0x8000          /* 32k */
 
+#define MESSAGE_FILE_MAX       2048
+
 #ifdef USE_MD5_PASSWORDS
 #include "md5.h"
 #endif /* USE_MD5_PASSWORDS */
@@ -165,30 +167,18 @@ extern unsigned char linux_logo_blue[];
 
 #define DEFAULT_TIMEOUT                -1
 
-/* Entry, currently called directly by crt0 (bss not inited) */
-
-extern char* __bss_start;
-extern char* _end;
-
 int
 yaboot_start (unsigned long r3, unsigned long r4, unsigned long r5)
 {
      int result;
      void* malloc_base = NULL;
-     unsigned long addr;
      prom_handle root;
 
-     /* OF seems to do it, but I'm not very confident */
-     memset(&__bss_start, 0, &_end - &__bss_start);
-
      /* Initialize OF interface */
      prom_init ((prom_entry) r5);
 
      /* Allocate some memory for malloc'ator */
-     for (addr = MALLOCADDR; addr <= MALLOCADDR * 16 ;addr+=0x100000) {
-         malloc_base = prom_claim((void *)addr, MALLOCSIZE, 0);
-         if (malloc_base != (void *)-1) break;
-     }
+     malloc_base = prom_claim_chunk((void *)MALLOCADDR, MALLOCSIZE, 0);
      if (malloc_base == (void *)-1) {
          prom_printf("Can't claim malloc buffer (%d bytes at 0x%08x)\n",
                      MALLOCSIZE, MALLOCADDR);
@@ -295,13 +285,13 @@ void print_message_file(char *filename)
      } else
          opened = 1;
 
-     msg = malloc(2001);
+     msg = malloc(MESSAGE_FILE_MAX + 1);
      if (!msg)
          goto done;
      else
-         memset(msg, 0, 2001);
+         memset(msg, 0, MESSAGE_FILE_MAX + 1);
 
-     if (file.fs->read(&file, 2000, msg) <= 0)
+     if (file.fs->read(&file, MESSAGE_FILE_MAX, msg) <= 0)
          goto done;
      else
          prom_printf("%s", msg);
@@ -983,7 +973,7 @@ int get_params(struct boot_param_t* params)
 
            /* check if user seted to use a initrd file from boot console */
            if (!definitrd && p != manualinitrd) {
-               if (manualinitrd[0] != "/" && (prom_get_devtype(defdevice_bak) != FILE_DEVICE_NET)) {
+               if (manualinitrd[0] != '/' && (prom_get_devtype(defdevice_bak) != FILE_DEVICE_NET)) {
                    strcpy(initrdpath, "/");
                    strcat(initrdpath, manualinitrd);
                } else
@@ -1011,8 +1001,6 @@ int get_params(struct boot_param_t* params)
 void
 yaboot_text_ui(void)
 {
-#define MAX_HEADERS    32
-
      struct boot_file_t        file;
      int                       result;
      static struct boot_param_t        params;
@@ -1209,11 +1197,6 @@ load_elf32(struct boot_file_t *file, loadinfo_t *loadinfo)
 
      loadinfo->entry = e->e_entry;
 
-     if (e->e_phnum > MAX_HEADERS) {
-         prom_printf ("Can only load kernels with one program header\n");
-         goto bail;
-     }
-
      ph = (Elf32_Phdr *)malloc(sizeof(Elf32_Phdr) * e->e_phnum);
      if (!ph) {
          prom_printf ("Malloc error\n");
@@ -1347,11 +1330,6 @@ load_elf64(struct boot_file_t *file, loadinfo_t *loadinfo)
 
      loadinfo->entry = e->e_entry;
 
-     if (e->e_phnum > MAX_HEADERS) {
-         prom_printf ("Can only load kernels with one program header\n");
-         goto bail;
-     }
-
      ph = (Elf64_Phdr *)malloc(sizeof(Elf64_Phdr) * e->e_phnum);
      if (!ph) {
          prom_printf ("Malloc error\n");