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Author SHA1 Message Date
Vladimir Serbinenko c6725996a9 A workaround for clang problem assembling startup_raw.S 
Signed-off-by: Vladimir Serbinenko <phcoder@google.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2019-04-08 15:22:10 +10:00
John Paul Adrian Glaubitz 63d568ed2e ieee1275: Fix path reference in comment of sparc64 boot loader code 
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2019-03-28 11:36:55 +01:00
John Paul Adrian Glaubitz 5635e799fd ieee1275: Include a.out header in assembly of sparc64 boot loader 
Recent versions of binutils dropped support for the a.out and COFF
formats on sparc64 targets. Since the boot loader on sparc64 is
supposed to be an a.out binary and the a.out header entries are
rather simple to calculate in our case, we just write the header
ourselves instead of relying on external tools to do that.

Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2019-03-28 11:35:12 +01:00
Cao jin 9dcac673ed diskboot: Trivial correction on stale comments 
diskboot.img now is loaded at 0x8000 and is jumped to with 0:0x8000.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2018-04-23 13:04:58 +02:00
Eric Snowberg bd4e40aadd sparc64: Close cdboot ihandle 
The ihandle is left open with a cd-core image.  This will cause a delay
booting grub from a virtual cdrom in a LDOM.  It will also cause problems
as Linux boots, since it expects the ihandle to be closed during init.

Orabug: 25911275

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
 2017-05-18 21:58:15 +02:00
Vladimir Serbinenko 285540e448 mips: Make the assembly-code N32-compatible. 
There are no $t4 or $t5 in N32 but there are $a4 and $a5.
 2015-10-11 13:20:26 +02:00
Vladimir Serbinenko 248bc1d0fc fwstart: Fix loading of address of read_spd_fail. 2015-07-22 21:42:41 +02:00
Vladimir Serbinenko 63411b14be fwstart: Add missing argument to p2align. 
Resulting binary is unchanged as it happens we were already aligned
by chance.
 2015-07-22 21:41:58 +02:00
Vladimir Serbinenko 80783ea646 fwstart: Replace blt with bltz. 
blt A, $zero, B and bltz A, B are equivalent but clang recognizes only
later, so use it.

Resulting binary is unchanged.
 2015-07-22 21:40:55 +02:00
Vladimir Serbinenko eecdbebc84 Remove mips_attributes. 
mips_attributes was introduced to work around clang problems with
-msoft-float. Those problems are now fixed and moreover .gnu_attributes
itself is unportable and creates problem with clang.

Revert "mips: Fix soft-float handling."

This partially reverts commit 6a4ecd276e.
 2015-07-22 21:05:11 +02:00
Vladimir Serbinenko 064360e667 Remove libgcc dependency. 
libgcc for boot environment isn't always present and compatible.
libgcc is often absent if endianness or bit-size at boot is different
from running OS.
libgcc may use optimised opcodes that aren't available on boot time.
So instead of relying on libgcc shipped with the compiler, supply
the functions in GRUB directly.
Tests are present to ensure that those replacement functions behave the
way compiler expects them to.
 2015-03-03 20:50:37 +01:00
Vladimir Serbinenko 6a4ecd276e mips: Fix soft-float handling. 
Add -msoft-float alongside clang arguments to specify ABI.
Specify ABI in asm files explicitly.
This trigers asm warning due to gcc failing to propagate -msoft-float
but it's tolerable.
 2015-02-23 22:33:28 +01:00
Vladimir Serbinenko da9f30b455 mips: Switch to more portable .org 
Binary is unchanged.
 2015-02-21 20:43:57 +01:00
Vladimir Serbinenko 49e5fcb9fb sparc64: Switch to more portable .org. 
Binaries are unchanged.
 2015-02-21 20:32:03 +01:00
Vladimir Serbinenko 3c6043245e qemu: Switch to more portable .org 
Binary is checked identical.
 2015-02-21 20:13:58 +01:00
Vladimir Serbinenko 8afd8f3b64 qemu: Fix GateA20 enabling. 
GateA20 code was inactive due to address error.
 2015-02-21 20:00:18 +01:00
Vladimir Serbinenko e62ca2a870 qemu: Fix compilation 2015-02-21 19:55:53 +01:00
Vladimir Serbinenko 37353f0ae5 i386: Remove needless ADDR32 prefixes when address is known and fixed. 
Shaves off 6 bytes in lzma_decompress.img.
 2015-02-21 17:38:56 +01:00
Vladimir Serbinenko 1998d63688 i386-pc/boot: Explicitly mark kernel_address[_high] as local. 
Otherwise apple asm might try to make accesses relocatable.
 2015-02-21 17:20:10 +01:00
Vladimir Serbinenko bc29c6d019 Change dot assignmnet to more portable .org. 
Binary is unchanged (verified)
 2015-02-21 17:19:01 +01:00
Vladimir Serbinenko f571dc1af8 i386: Move from explicit ADDR32/DATA32 prefixes to instruction suffixes. 
Is more portable.
Binary is unchanged (verified).
 2015-02-21 17:13:23 +01:00
Vladimir Serbinenko e5851b63e0 mips/startup_raw: Use more portable .asciz 2015-02-21 16:09:46 +01:00
Allen Pais ee281fd0c6 * grub-core/boot/sparc64/ieee1275/boot.S: Fix order of fields. 
Also-By: Bob Picco <bob.picco@oracle.com>
 2013-12-19 01:53:56 +01:00
Vladimir Serbinenko fd4650a556 Add bonito 3A support. 2013-12-17 22:49:27 +01:00
Vladimir Serbinenko bc8fcf4bd3 * grub-core/boot/i386/qemu/boot.S: Add missing EXT_C. 2013-12-14 23:13:42 +01:00
Vladimir Serbinenko 4a73746a04 * grub-core/boot/sparc64/ieee1275/boot.S [CDBOOT]: Move scratchpad 
so it doesn't land in the middle of loaded image.
 2013-12-04 19:54:37 +01:00
Vladimir Serbinenko 5c066a81c2 Apple assembly doesn't handle symbol arithmetic well. So define an 
offset symbol in boot.S and use it.
 2013-11-24 07:12:12 +01:00
Vladimir Serbinenko 78f961efe9 Apple assembly doesn't handle symbol arithmetic well. So instead 
of getting addres of kernel_sector + 4 define kernel_sector_high.
	It also makes code more readable.
 2013-11-24 07:11:00 +01:00
Vladimir Serbinenko 09bc0a577d With Apple assembly in .macro environvemnt you have to use $$ instead 
of $. So introduce new preprocessor macro MACRO_DOLLAR(x) which expands
	to $$x on Apple and to $x on everything else.
 2013-11-24 07:08:18 +01:00
Vladimir Serbinenko 6f2e82be3a * grub-core/boot/i386/pc/boot.S: Fix floppy probe. Due to missing 
%dx restore the probe worked on non-existant drive. Reorganize the
	code a little bit to free 2 bytes necessary for push/pop.
 2013-11-24 05:05:33 +01:00
Vladimir Serbinenko 1bba40f578 Move common BIOS/coreboot memory map declarations to 
include/grub/i386/memory_raw.h and eliminate duplicate declarations.
 2013-11-23 12:39:21 +01:00
Vladimir Serbinenko 054efe541f * grub-core/boot/mips/startup_raw.S: Handle the case of gap between 
.data and .bss. May happen if compiler and assembly use different
	alignment.
 2013-11-22 05:07:32 +01:00
Vladimir Serbinenko 6f4a19f59f Use $t9 for indirect calls from asm to C as PIC ABI requires. 2013-11-22 04:45:05 +01:00
Vladimir Serbinenko ad2dc00309 * grub-core/boot/i386/pc/startup_raw.S (grub_gate_a20): Remove 
argument. We don't disable Gate A20 in this code.
 2013-10-25 11:03:39 +02:00
Vladimir Serbinenko b46684ae53 * grub-core/boot/i386/qemu/boot.S: Ensure that A20 is enabled. 
Conceptually based on change in branch "vbe-on-coreboot".
 2013-10-25 10:51:58 +02:00
Josh Triplett 68b777070a * grub-core/boot/i386/pc/lnxboot.S: Re-add support for recording the 
boot partition.
 2013-09-23 14:31:42 +02:00
Vladimir 'phcoder' Serbinenko 9c28da2a89 Remove early sm712 init as there is no reason for it (the "watchdog" 
effect was due to wrong GPIO map).
 2013-07-11 16:24:35 +02:00
Andrey Borzenkov cc28411296 Fix make dist on non-pc. 2013-06-07 18:23:08 +02:00
Vladimir 'phcoder' Serbinenko 17f9fd29d3 Implement grub_machine_get_bootlocation for ARC. 2013-04-27 19:12:11 +02:00
Vladimir 'phcoder' Serbinenko 88d2f3022e * grub-core/boot/powerpc/bootinfo.txt.in: Missing update from previous 
commit.
 2013-04-25 03:26:41 +02:00
Vladimir 'phcoder' Serbinenko daaa64bd90 Add support for pseries and other bootinfo machines to grub-mkrescue. 
Tested by: Paulo Flabiano Smorigo.
 2013-04-19 00:36:23 +02:00
Vladimir 'phcoder' Serbinenko b49fe8792a Move GRUB out of system area when using xorriso 1.2.9 or later. 2013-04-14 18:53:14 +02:00
Vladimir 'phcoder' Serbinenko 8ca86b3a03 Support mkrescue on sparc64. 2013-04-14 17:10:55 +02:00
Vladimir 'phcoder' Serbinenko a79b8a1584 Merge powerpc grub-mkrescue flavour with common. Use xorriso HFS+ 
feature for it.
 2013-04-11 23:15:26 +02:00
Vladimir 'phcoder' Serbinenko c50c867da3 Init video early on yeeloong to avoid being rebooted by watchdog. 
* grub-core/Makefile.am (gensm712): New target.
	(sm712_start.S): Likewise.
	(boot/mips/loongson/fwstart.S): Depend on sm712_start.S
	* grub-core/boot/mips/loongson/fwstart.S [!FULOONG2F]: Init SM712.
	* grub-core/video/sm712.c [GENINIT]: Generate compact init procedure
	description.
	* include/grub/vga.h: Move registry definitions to...
	* include/grub/vgaregs.h: ... here.
 2012-06-26 03:36:14 +02:00
Vladimir 'phcoder' Serbinenko 5f92c8a110 * grub-core/boot/decompressor/minilib.c (grub_memcmp): Fix the compare 
signedness.
 2012-06-26 03:31:41 +02:00
Vladimir 'phcoder' Serbinenko 2fb97ed37a * grub-core/boot/mips/loongson/fwstart.S: Add missing setting of high 
half of $a0.
 2012-06-23 11:27:27 +02:00
Vladimir 'phcoder' Serbinenko f7143efe1b * grub-core/boot/i386/pc/startup_raw.S [__APPLE__]: Add Apple assembly 
version.
	* grub-core/commands/i386/pc/drivemap_int13h.S [__APPLE__]: Likewise.
	* grub-core/kern/i386/pc/startup.S [__APPLE__]: Likewise.
	* grub-core/lib/i386/relocator16.S [__APPLE__]: Likewise.
	* grub-core/lib/i386/relocator_common.S [__APPLE__]: Likewise.
	* grub-core/mmap/i386/pc/mmap_helper.S [__APPLE__]: Likewise.
 2012-05-28 17:51:57 +02:00
Vladimir 'phcoder' Serbinenko 52bfedfa39 * grub-core/boot/i386/pc/startup_raw.S (multiboot_trampoline): Fix 
size calculation.
	* grub-core/kern/i386/realmode.S (realidt): Assume default BIOS IDT if
	none is known.
 2012-03-08 18:54:25 +01:00
Vladimir 'phcoder' Serbinenko ef023e42a2 * grub-core/boot/i386/pc/startup_raw.S: Move decompressor_end to .bss 
to ensure that it's after the last byte of .text.
 2012-03-02 11:24:24 +01:00