alpha: Fix bootpfile and bootpzfile make targets
authorHelge Deller <deller@gmx.de>
Mon, 23 Mar 2015 21:47:21 +0000 (22:47 +0100)
committerMatt Turner <mattst88@gmail.com>
Tue, 26 May 2015 17:01:50 +0000 (10:01 -0700)
Fix the bootpfile and bootpzfile make targets to creat BOOTP images.
Both targets were broken due to some missing defines to re-map ELF
constants. In addition the old code used the generic vsprintf function
of the kernel which we now replace by a simple and much smaller
implementation for the bootloader.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
arch/alpha/boot/Makefile
arch/alpha/boot/main.c
arch/alpha/boot/stdio.c [new file with mode: 0644]
arch/alpha/boot/tools/objstrip.c

index cd14388..8399bd0 100644 (file)
@@ -14,6 +14,9 @@ targets               := vmlinux.gz vmlinux \
                   tools/bootpzh bootloader bootpheader bootpzheader 
 OBJSTRIP       := $(obj)/tools/objstrip
 
+HOSTCFLAGS     := -Wall -I$(objtree)/usr/include
+BOOTCFLAGS     += -I$(obj) -I$(srctree)/$(obj)
+
 # SRM bootable image.  Copy to offset 512 of a partition.
 $(obj)/bootimage: $(addprefix $(obj)/tools/,mkbb lxboot bootlx) $(obj)/vmlinux.nh
        ( cat $(obj)/tools/lxboot $(obj)/tools/bootlx $(obj)/vmlinux.nh ) > $@ 
@@ -96,13 +99,14 @@ $(obj)/tools/bootph: $(obj)/bootpheader $(OBJSTRIP) FORCE
 $(obj)/tools/bootpzh: $(obj)/bootpzheader $(OBJSTRIP) FORCE
        $(call if_changed,objstrip)
 
-LDFLAGS_bootloader   := -static -uvsprintf -T  #-N -relax
-LDFLAGS_bootpheader  := -static -uvsprintf -T  #-N -relax
-LDFLAGS_bootpzheader := -static -uvsprintf -T  #-N -relax
+LDFLAGS_bootloader   := -static -T # -N -relax
+LDFLAGS_bootloader   := -static -T # -N -relax
+LDFLAGS_bootpheader  := -static -T # -N -relax
+LDFLAGS_bootpzheader := -static -T # -N -relax
 
-OBJ_bootlx   := $(obj)/head.o $(obj)/main.o
-OBJ_bootph   := $(obj)/head.o $(obj)/bootp.o
-OBJ_bootpzh  := $(obj)/head.o $(obj)/bootpz.o $(obj)/misc.o
+OBJ_bootlx   := $(obj)/head.o $(obj)/stdio.o $(obj)/main.o
+OBJ_bootph   := $(obj)/head.o $(obj)/stdio.o $(obj)/bootp.o
+OBJ_bootpzh  := $(obj)/head.o $(obj)/stdio.o $(obj)/bootpz.o $(obj)/misc.o
 
 $(obj)/bootloader: $(obj)/bootloader.lds $(OBJ_bootlx) $(LIBS_Y) FORCE
        $(call if_changed,ld)
index 3baf2d1..dd6eb4a 100644 (file)
@@ -19,7 +19,6 @@
 
 #include "ksize.h"
 
-extern int vsprintf(char *, const char *, va_list);
 extern unsigned long switch_to_osf_pal(unsigned long nr,
        struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa,
        unsigned long *vptb);
diff --git a/arch/alpha/boot/stdio.c b/arch/alpha/boot/stdio.c
new file mode 100644 (file)
index 0000000..f844dae
--- /dev/null
@@ -0,0 +1,306 @@
+/*
+ * Copyright (C) Paul Mackerras 1997.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <stdarg.h>
+#include <stddef.h>
+
+size_t strnlen(const char * s, size_t count)
+{
+       const char *sc;
+
+       for (sc = s; count-- && *sc != '\0'; ++sc)
+               /* nothing */;
+       return sc - s;
+}
+
+# define do_div(n, base) ({                                            \
+       unsigned int __base = (base);                                   \
+       unsigned int __rem;                                             \
+       __rem = ((unsigned long long)(n)) % __base;                     \
+       (n) = ((unsigned long long)(n)) / __base;                       \
+       __rem;                                                          \
+})
+
+
+static int skip_atoi(const char **s)
+{
+       int i, c;
+
+       for (i = 0; '0' <= (c = **s) && c <= '9'; ++*s)
+               i = i*10 + c - '0';
+       return i;
+}
+
+#define ZEROPAD        1               /* pad with zero */
+#define SIGN   2               /* unsigned/signed long */
+#define PLUS   4               /* show plus */
+#define SPACE  8               /* space if plus */
+#define LEFT   16              /* left justified */
+#define SPECIAL        32              /* 0x */
+#define LARGE  64              /* use 'ABCDEF' instead of 'abcdef' */
+
+static char * number(char * str, unsigned long long num, int base, int size, int precision, int type)
+{
+       char c,sign,tmp[66];
+       const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
+       int i;
+
+       if (type & LARGE)
+               digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+       if (type & LEFT)
+               type &= ~ZEROPAD;
+       if (base < 2 || base > 36)
+               return 0;
+       c = (type & ZEROPAD) ? '0' : ' ';
+       sign = 0;
+       if (type & SIGN) {
+               if ((signed long long)num < 0) {
+                       sign = '-';
+                       num = - (signed long long)num;
+                       size--;
+               } else if (type & PLUS) {
+                       sign = '+';
+                       size--;
+               } else if (type & SPACE) {
+                       sign = ' ';
+                       size--;
+               }
+       }
+       if (type & SPECIAL) {
+               if (base == 16)
+                       size -= 2;
+               else if (base == 8)
+                       size--;
+       }
+       i = 0;
+       if (num == 0)
+               tmp[i++]='0';
+       else while (num != 0) {
+               tmp[i++] = digits[do_div(num, base)];
+       }
+       if (i > precision)
+               precision = i;
+       size -= precision;
+       if (!(type&(ZEROPAD+LEFT)))
+               while(size-->0)
+                       *str++ = ' ';
+       if (sign)
+               *str++ = sign;
+       if (type & SPECIAL) {
+               if (base==8)
+                       *str++ = '0';
+               else if (base==16) {
+                       *str++ = '0';
+                       *str++ = digits[33];
+               }
+       }
+       if (!(type & LEFT))
+               while (size-- > 0)
+                       *str++ = c;
+       while (i < precision--)
+               *str++ = '0';
+       while (i-- > 0)
+               *str++ = tmp[i];
+       while (size-- > 0)
+               *str++ = ' ';
+       return str;
+}
+
+int vsprintf(char *buf, const char *fmt, va_list args)
+{
+       int len;
+       unsigned long long num;
+       int i, base;
+       char * str;
+       const char *s;
+
+       int flags;              /* flags to number() */
+
+       int field_width;        /* width of output field */
+       int precision;          /* min. # of digits for integers; max
+                                  number of chars for from string */
+       int qualifier;          /* 'h', 'l', or 'L' for integer fields */
+                               /* 'z' support added 23/7/1999 S.H.    */
+                               /* 'z' changed to 'Z' --davidm 1/25/99 */
+
+
+       for (str=buf ; *fmt ; ++fmt) {
+               if (*fmt != '%') {
+                       *str++ = *fmt;
+                       continue;
+               }
+
+               /* process flags */
+               flags = 0;
+               repeat:
+                       ++fmt;          /* this also skips first '%' */
+                       switch (*fmt) {
+                               case '-': flags |= LEFT; goto repeat;
+                               case '+': flags |= PLUS; goto repeat;
+                               case ' ': flags |= SPACE; goto repeat;
+                               case '#': flags |= SPECIAL; goto repeat;
+                               case '0': flags |= ZEROPAD; goto repeat;
+                               }
+
+               /* get field width */
+               field_width = -1;
+               if ('0' <= *fmt && *fmt <= '9')
+                       field_width = skip_atoi(&fmt);
+               else if (*fmt == '*') {
+                       ++fmt;
+                       /* it's the next argument */
+                       field_width = va_arg(args, int);
+                       if (field_width < 0) {
+                               field_width = -field_width;
+                               flags |= LEFT;
+                       }
+               }
+
+               /* get the precision */
+               precision = -1;
+               if (*fmt == '.') {
+                       ++fmt;
+                       if ('0' <= *fmt && *fmt <= '9')
+                               precision = skip_atoi(&fmt);
+                       else if (*fmt == '*') {
+                               ++fmt;
+                               /* it's the next argument */
+                               precision = va_arg(args, int);
+                       }
+                       if (precision < 0)
+                               precision = 0;
+               }
+
+               /* get the conversion qualifier */
+               qualifier = -1;
+               if (*fmt == 'l' && *(fmt + 1) == 'l') {
+                       qualifier = 'q';
+                       fmt += 2;
+               } else if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L'
+                       || *fmt == 'Z') {
+                       qualifier = *fmt;
+                       ++fmt;
+               }
+
+               /* default base */
+               base = 10;
+
+               switch (*fmt) {
+               case 'c':
+                       if (!(flags & LEFT))
+                               while (--field_width > 0)
+                                       *str++ = ' ';
+                       *str++ = (unsigned char) va_arg(args, int);
+                       while (--field_width > 0)
+                               *str++ = ' ';
+                       continue;
+
+               case 's':
+                       s = va_arg(args, char *);
+                       if (!s)
+                               s = "<NULL>";
+
+                       len = strnlen(s, precision);
+
+                       if (!(flags & LEFT))
+                               while (len < field_width--)
+                                       *str++ = ' ';
+                       for (i = 0; i < len; ++i)
+                               *str++ = *s++;
+                       while (len < field_width--)
+                               *str++ = ' ';
+                       continue;
+
+               case 'p':
+                       if (field_width == -1) {
+                               field_width = 2*sizeof(void *);
+                               flags |= ZEROPAD;
+                       }
+                       str = number(str,
+                               (unsigned long) va_arg(args, void *), 16,
+                               field_width, precision, flags);
+                       continue;
+
+
+               case 'n':
+                       if (qualifier == 'l') {
+                               long * ip = va_arg(args, long *);
+                               *ip = (str - buf);
+                       } else if (qualifier == 'Z') {
+                               size_t * ip = va_arg(args, size_t *);
+                               *ip = (str - buf);
+                       } else {
+                               int * ip = va_arg(args, int *);
+                               *ip = (str - buf);
+                       }
+                       continue;
+
+               case '%':
+                       *str++ = '%';
+                       continue;
+
+               /* integer number formats - set up the flags and "break" */
+               case 'o':
+                       base = 8;
+                       break;
+
+               case 'X':
+                       flags |= LARGE;
+               case 'x':
+                       base = 16;
+                       break;
+
+               case 'd':
+               case 'i':
+                       flags |= SIGN;
+               case 'u':
+                       break;
+
+               default:
+                       *str++ = '%';
+                       if (*fmt)
+                               *str++ = *fmt;
+                       else
+                               --fmt;
+                       continue;
+               }
+               if (qualifier == 'l') {
+                       num = va_arg(args, unsigned long);
+                       if (flags & SIGN)
+                               num = (signed long) num;
+               } else if (qualifier == 'q') {
+                       num = va_arg(args, unsigned long long);
+                       if (flags & SIGN)
+                               num = (signed long long) num;
+               } else if (qualifier == 'Z') {
+                       num = va_arg(args, size_t);
+               } else if (qualifier == 'h') {
+                       num = (unsigned short) va_arg(args, int);
+                       if (flags & SIGN)
+                               num = (signed short) num;
+               } else {
+                       num = va_arg(args, unsigned int);
+                       if (flags & SIGN)
+                               num = (signed int) num;
+               }
+               str = number(str, num, base, field_width, precision, flags);
+       }
+       *str = '\0';
+       return str-buf;
+}
+
+int sprintf(char * buf, const char *fmt, ...)
+{
+       va_list args;
+       int i;
+
+       va_start(args, fmt);
+       i=vsprintf(buf,fmt,args);
+       va_end(args);
+       return i;
+}
index 367d53d..dee8269 100644 (file)
@@ -27,6 +27,9 @@
 #include <linux/param.h>
 #ifdef __ELF__
 # include <linux/elf.h>
+# define elfhdr elf64_hdr
+# define elf_phdr elf64_phdr
+# define elf_check_arch(x) ((x)->e_machine == EM_ALPHA)
 #endif
 
 /* bootfile size must be multiple of BLOCK_SIZE: */