struct ... foo = { 0, } is valid initializer, but older GCC emits
warning which is fatal error due to -Werror=missing-field-initializer.
So simply use full initializer to avoid these errors. This was fixed
probably in GCC 4.7.

See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36750

Currently, if "linux" fails, the "goto fail;" in grub_cmd_initrd sends us
into grub_initrd_close() without grub_initrd_init() being called, and thus
it never clears initrd_ctx->components.  grub_initrd_close() then frees that
address, which is stale data from the stack.  If the stack happens to have a
stale *address* there that matches a recent allocation, then you'll get a
double free later.

So initialize the memory up front.
Signed-off-by: Peter Jones <pjones@redhat.com>

	* grub-core/loader/i386/linux.c (grub_cmd_initrd): Align initrds at 4.
	* grub-core/loader/i386/pc/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/ia64/efi/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/mips/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/powerpc/ieee1275/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/sparc64/ieee1275/linux.c (grub_cmd_initrd): Likewise.

	* conf/Makefile.common (CFLAGS_GNULIB): Add -Wno-redundant-decls
	-Wno-unreachable-code -Wno-conversion -Wno-old-style-definition.
	* configure.ac (HOST_CFLAGS): Add bunch of -W arguments.
	(TARGET_CFLAGS): Likewise.
	(HOST_CFLAGS): Add -Werror unless --disable-werror is activated.
	* grub-core/Makefile.core.def (decompressor_xz): Add
	-Wno-unreachable-code.
	(normal): Add -Wno-redundant-decls.
	(xzio): Add -Wno-unreachable-code.
	(lzopio): Add -Wno-redundant-decls -Wno-error.
	* grub-core/commands/acpi.c: Add exception to -Wcast-align.
	* grub-core/commands/lsacpi.c: Add exception to -Wcast-align.
	* grub-core/gensymlist.sh: Add exception to -Wmissing-format-attribute.
	* grub-core/kern/dl.c: Add exception to -Wcast-align.
	* grub-core/kern/efi/efi.c (grub_efi_modules_addr): Likewise.
	* grub-core/kern/i386/coreboot/init.c: Add exception to
	-Wsuggest-attribute=noreturn.
	* grub-core/kern/ia64/dl.c: Add exception to -Wcast-align.
	* grub-core/kern/ia64/dl_helper.c: Likewise.
	* grub-core/kern/mips/dl.c: Likewise.
	* grub-core/kern/sparc64/dl.c: Likewise.
	* grub-core/lib/LzmaEnc.c: Add exception to -Wshadow.
	* grub-core/lib/libgcrypt_wrap/cipher_wrap.h (memcpy): Likewise.
	(memcmp): Likewise.
	* grub-core/lib/pbkdf2.c: Add exception to -Wunreachable-code.
	* grub-core/loader/ia64/efi/linux.c: Add exception to -Wcast-align.
	* grub-core/loader/mips/linux.c: Likewise.
	* grub-core/loader/multiboot_elfxx.c: Likewise.
	* grub-core/script/parser.y: Add exception to -Wunreachable-code.
	* grub-core/video/sm712.c: Add exception to -Wcast-align.
	* util/import_gcry.py: Add -Wno-cast-align to modules checked by hand.
	* grub-core/font/font.c (grub_font_loader_init): Add explicit cast and
	fixme.
	* grub-core/fs/iso9660.c (grub_iso9660_iterate_dir): Likewise.
	* grub-core/kern/i386/multiboot_mmap.c (grub_machine_mmap_init):
	Fix prototype.

	* grub-core/loader/ia64/efi/linux.c (grub_cmd_fpswa): Likewise.

	find any evidence of it being used for anything.
	Replace "relocate" command with an environment variable

	* grub-core/loader/ia64/efi/linux.c (ia64_boot_param): Remove extra
	fields.
	(ia64_boot_payload): Removed.
	(last_payload): Likewise.
	(RELOCATE_OFF): Likewise.
	(RELOCATE_ON): Likewise.
	(RELOCATE_FORCE): Likewise.
	(relocate): Likewise.
	(free_pages): Don't free payloads.
	(grub_load_elf64): Use common error messages.
	Use "linux_relocate" variable.
	Increase the space after boot_params.
	(grub_cmd_payload): Removed.
	(grub_cmd_relocate): Likewise.
	(grub_cmd_fpswa): Improve messages.
	(cmd_payload): Removed.
	(cmd_relocate): Likewise.
	(GRUB_MOD_INIT): Don't register "payload" and "relocate".
	(GRUB_MOD_FINI): Don't unregister "payload" and "relocate".

	on it.

	* grub-core/commands/hashsum.c (options): Unify messages.
	* grub-core/commands/keystatus.c (GRUB_MOD_INIT): Don't mark a
	literal-only message as translatable.
	* grub-core/commands/lsacpi.c (GRUB_MOD_INIT): Likewise.
	* grub-core/loader/ia64/efi/linux.c (GRUB_MOD_INIT): Likewise.
	* grub-core/commands/legacycfg.c (GRUB_MOD_INIT): Add quoting around
	commands.
	* grub-core/commands/menuentry.c (options): Clarify that it's a keyboard
	key, not the key used to unlock. Clarify what it's used for.
	* grub-core/kern/emu/hostdisk.c (read_device_map): Unify error message.
	* grub-core/loader/xnu.c (grub_xnu_load_driver): Remove erroneous colon.
	* grub-core/script/main.c (GRUB_MOD_INIT): Clarify [n] to be [NUM].
	* util/grub-editenv.c (options): Unify "verbose" message.
	* util/grub-fstest.c (read_file): Unify error message.
	(fstest): Add quotes around commands.
	(options): Unify "verbose" message.
	* util/grub-install.in: Add quotes around variable name.
	* util/grub-kbdcomp.in: Unify error message.
	* util/grub-mkfont.c (main): Likewise.
	* util/grub-mkrescue.in: Likewise.
	* util/grub-mklayout.c (options): Unify "verbose" message.
	* util/grub-mkstandalone.in: Unify help and verbose messages.
	* util/grub-mount.c (options): Unify "verbose" message.
	* util/grub-probe.c (options): Likewise.
	* util/grub-script-check.c (options): Likewise.
	* util/grub-setup.c (setup): Unify no-terminator message.
	(options): Use DEVICE and not DEV.
	Unify "verbose" message.
	* util/ieee1275/ofpath.c (xrealpath): Unify error message.

	error.
	(allocate_pages): Check return value.
	Replace fatal with error.
	(grub_linux_boot): Replace printf with dprintf.
	Check find_mmap_size return value.
	Replace fatal with error.
	Don't call grub_machine_fini.
	(grub_load_elf64): Replace printf with dprintf.
	(grub_cmd_linux): Likewise.
	(grub_cmd_initrd): Likewise.
	(grub_cmd_payload): Likewise.

        * grub-core/commands/setpci.c: Likewise.
        * grub-core/commands/videotest.c: Likewise.
        * grub-core/disk/geli.c: Likewise.
        * grub-core/kern/mm.c: Likewise.
        * grub-core/lib/relocator.c: Likewise.
        * grub-core/loader/efi/appleloader.c: Likewise.
        * grub-core/loader/i386/xnu.c: Likewise.
        * grub-core/loader/ia64/efi/linux.c: Likewise.
        * grub-core/loader/xnu.c: Likewise.
        * grub-core/net/dns.c: Likewise.
        * grub-core/net/net.c: Likewise.
        * grub-core/script/lexer.c: Likewise.
        * grub-core/script/parser.y: Likewise.
        * grub-core/script/yylex.l: Likewise.
        * util/getroot.c: Likewise.
        * util/grub-setup.c: Likewise.

	disks with unknown size.
	* grub-core/disk/raid.c (scan_devices): Allow disks with unknown sizes.

	grub_probe.
	Reported by: adamwill

	* grub-core/commands/acpi.c (grub_cmd_acpi): Don't override errors.
	* grub-core/font/font.c (open_section): Likewise.
	* grub-core/loader/i386/bsd.c (grub_bsd_load_aout): New argument
	filename. Don't override errors.
	(grub_cmd_openbsd_ramdisk): Don't override errors.
	* grub-core/loader/i386/linux.c (grub_cmd_linux): Likewise.
	(grub_cmd_initrd): Likewise.
	* grub-core/loader/i386/pc/linux.c (grub_cmd_linux): Likewise.
	(grub_cmd_initrd): Likewise.
	* grub-core/loader/ia64/efi/linux.c (grub_load_elf64): Likewise.
	(grub_cmd_linux): Likewise.
	(grub_cmd_initrd): Likewise.
	(grub_cmd_payload): Likewise.
	* grub-core/loader/mips/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/multiboot.c (grub_cmd_multiboot): Likewise.
	(grub_cmd_module): Likewise.
	* grub-core/loader/powerpc/ieee1275/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/sparc64/ieee1275/linux.c (grub_cmd_initrd): Likewise.
	* grub-core/loader/xnu.c (grub_xnu_load_driver): Likewise.
	(grub_cmd_xnu_mkext): Likewise.
	(grub_cmd_xnu_ramdisk): Likewise.
	(grub_xnu_check_os_bundle_required): Likewise.
	(grub_xnu_load_kext_from_dir): Likewise.
	(grub_cmd_xnu_kextdir): Likewise.
	* grub-core/loader/xnu_resume.c (grub_xnu_resume): Likewise.

	* grub-core/fs/romfs.c: Likewise.
	* grub-core/lib/ia64/setjmp.S: Likewise.
	* grub-core/loader/i386/pc/freedos.c: Likewise.
	* grub-core/loader/ia64/efi/linux.c: Likewise.
	* grub-core/video/colors.c: Likewise.
	* include/grub/dl.h (GRUB_MOD_DEP): New macro.