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2009-06-27 Pavel Roskin <proski@gnu.org>

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2009-06-27  Robert Millan  <rmh.grub@aybabtu.com>

        * include/grub/dl.h: Include grub/elf.h.
        (struct grub_dl): Add symtab field.
        * kern/dl.c [GRUB_MACHINE_QEMU]: Define
        GRUB_MODULES_MACHINE_READONLY.
        (grub_dl_resolve_symbols): Populate mod->symtab, making a copy
        of the header for read-only modules.
        (grub_dl_unload): Free mod->symtab for read-only modules.
        * kern/i386/dl.c: Use mod->symtab.
        * kern/powerpc/dl.c: Likewise.
        * kern/sparc64/dl.c: Likewise.
        * kern/x86_64/dl.c: Likewise.

        * conf/i386-qemu.rmk: New file.
        * kern/i386/qemu/startup.S: Likewise.
        * kern/i386/qemu/mmap.c: Likewise.
        * boot/i386/qemu/boot.S: Likewise.
        * include/grub/i386/qemu/time.h: Likewise.
        * include/grub/i386/qemu/serial.h: Likewise.
        * include/grub/i386/qemu/kernel.h: Likewise.
        * include/grub/i386/qemu/console.h: Likewise.
        * include/grub/i386/qemu/boot.h: Likewise.
        * include/grub/i386/qemu/init.h: Likewise.
        * include/grub/i386/qemu/machine.h: Likewise.
        * include/grub/i386/qemu/loader.h: Likewise.
        * include/grub/i386/qemu/memory.h: Likewise.

        * conf/i386-coreboot.rmk (GRUB_BOOT_MACHINE_LINK_ADDR)
        (GRUB_KERNEL_MACHINE_LINK_ADDR): New variables.
        [qemu] (pkglib_IMAGES): Add `boot.img'.
        [qemu] (boot_img_SOURCES, boot_img_ASFLAGS, boot_img_LDFLAGS)
        [qemu] (boot_img_FORMAT): New variables.
        [qemu] (bin_UTILITIES): Add `grub-mkimage'.
        [qemu] (grub_mkimage_SOURCES, grub_mkimage_CFLAGS): New variables.
        [qemu] (kernel_img_SOURCES, kernel_img_HEADERS, kernel_img_CFLAGS)
        [qemu] (kernel_img_ASFLAGS, kernel_img_LDFLAGS)
        [qemu] (kernel_img_FORMAT): New variables.

        * configure.ac: Recognise `i386-qemu'.

        * util/i386/pc/grub-mkimage.c (compress_kernel): Add dummy variant
        (for no compression).
        [GRUB_MACHINE_QEMU] (generate_image): Misc adjustments to produce
        a valid i386 ROM image.  Make `GRUB_KERNEL_MACHINE_COMPRESSED_SIZE',
        `GRUB_KERNEL_MACHINE_INSTALL_DOS_PART' and
        `GRUB_KERNEL_MACHINE_INSTALL_BSD_PART' optional features (with
        ifdefs).
This commit is contained in:
robertmh 2009-06-27 11:18:10 +00:00
parent 97fe384ecb
commit 8231fb77c6
24 changed files with 584 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

19
kern/dl.c
View file

@ -1,7 +1,7 @@
/* dl.c - loadable module support */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003,2004,2005,2007,2008 Free Software Foundation, Inc.
* Copyright (C) 2002,2003,2004,2005,2007,2008,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -28,6 +28,12 @@
#include <grub/file.h>
#include <grub/env.h>
#include <grub/cache.h>
#include <grub/machine/machine.h>
/* Platforms where modules are in a readonly area of memory. */
#if defined(GRUB_MACHINE_QEMU)
#define GRUB_MODULES_MACHINE_READONLY
#endif
@ -309,7 +315,13 @@ grub_dl_resolve_symbols (grub_dl_t mod, Elf_Ehdr *e)
if (i == e->e_shnum)
return grub_error (GRUB_ERR_BAD_MODULE, "no symbol table");
sym = (Elf_Sym *) ((char *) e + s->sh_offset);
#ifdef GRUB_MODULES_MACHINE_READONLY
mod->symtab = grub_malloc (s->sh_size);
memcpy (mod->symtab, (char *) e + s->sh_offset, s->sh_size);
#else
mod->symtab = (Elf_Sym *) ((char *) e + s->sh_offset);
#endif
sym = mod->symtab;
size = s->sh_size;
entsize = s->sh_entsize;
@ -671,6 +683,9 @@ grub_dl_unload (grub_dl_t mod)
}
grub_free (mod->name);
#ifdef GRUB_MODULES_MACHINE_READONLY
grub_free (mod->symtab);
#endif
grub_free (mod);
return 1;
}