x86 boot enhancements, link enhancements 2/11

x86 boot enhancements, link enhancements 2/11

Post by Eric W. Biederm » Fri, 19 Apr 2002 02:00:18



#2  2.5.8.boot.vmlinuxlds
============================================================
- i386/Makefile remove bogus linker command line of -e stext
- Fix vmlinux.lds so vmlinux knows it loads at 0x100000 (1MB)
- Fix vmlinux.lds so we correctly use startup_32 for our entry point
- Make startup_32 global

diff -uNr linux-2.5.8.boot.boot_params/arch/i386/Makefile linux-2.5.8.boot.vmlinuxlds/arch/i386/Makefile
--- linux-2.5.8.boot.boot_params/arch/i386/Makefile     Thu Apr 12 13:20:31 2001

 LD=$(CROSS_COMPILE)ld -m elf_i386
 OBJCOPY=$(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
-LDFLAGS=-e stext
+LDFLAGS=
 LINKFLAGS =-T $(TOPDIR)/arch/i386/vmlinux.lds $(LDFLAGS)

 CFLAGS += -pipe
diff -uNr linux-2.5.8.boot.boot_params/arch/i386/kernel/head.S linux-2.5.8.boot.vmlinuxlds/arch/i386/kernel/head.S
--- linux-2.5.8.boot.boot_params/arch/i386/kernel/head.S        Wed Mar 20 07:18:31 2002

  *
  * On entry, %esi points to the real-mode code as a 32-bit pointer.
  */
-startup_32:
+ENTRY(startup_32)
 /*
  * Set segments to known values
  */
diff -uNr linux-2.5.8.boot.boot_params/arch/i386/vmlinux.lds linux-2.5.8.boot.vmlinuxlds/arch/i386/vmlinux.lds
--- linux-2.5.8.boot.boot_params/arch/i386/vmlinux.lds  Sun Mar 10 20:09:08 2002

  */
 OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
 OUTPUT_ARCH(i386)
-ENTRY(_start)
+physical_startup_32 = startup_32 - 0xC0000000;
+ENTRY(physical_startup_32)
+PHDRS
+{
+       text PT_LOAD AT(0x100000);
+
+}
 SECTIONS
 {

        *(.text)
        *(.fixup)
        *(.gnu.warning)
-       } = 0x9090
+       } :text = 0x9090

   _etext = .;                  /* End of text section */

-
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