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46 commits

Author SHA1 Message Date
Leif Lindholm
c0f529ea67 arm: implement additional relocations generated by gcc 4.9 at -O3 
GCC 4.9 also generates R_ARM_THM_MOVW_ABS_NC and R_ARM_THM_MOVT_ABS,
as an alternative to ABS32.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
 2015-02-03 22:50:08 +00:00
David Kozub
17328db3b3 grub-core/kern/arm/misc.S: fix unaligned grub_uint64_t local variable 
The unaligned local in __aeabi_uidivmod leads to a store to a 64bit
value at an address that is not divisible by 8 (in grub_divmod64).
The compiler most likely generates a STRD instruction to store it and
this causes an exception.

Fixes Savannah bug #43632.

This includes improvements done by Leif Lindholm.
 2014-12-07 20:16:29 +03:00
Vladimir Serbinenko
5bda44d7f9 * grub-core/kern/arm/cache_armv6.S: Remove .arch directive. 
As these functions are used on pre-ARMv6 CPUs as well we don't want
	to make assembler assume that architecture is higher than default one.
 2013-12-25 23:31:42 +01:00
Vladimir Serbinenko
bbc52c228f Enable cache on ARM U-Boot port. 
Without it the port is reidiculously slow.
 2013-12-23 05:01:58 +01:00
Vladimir Serbinenko
943981ff65 Fix ARM cache maintainance. 
More code was converted from ASM to C for easier handling.
 2013-12-23 04:27:53 +01:00
Vladimir Serbinenko
adabfb5418 * grub-core/kern/arm/cache.c (grub_arm_disable_caches_mmu): Use v6 
algorithm on v5.

	Suggested by: Leif Lindholm.
 2013-12-22 22:33:35 +01:00
Vladimir Serbinenko
74fa9417e5 * grub-core/kern/arm/dl.c: Remove unnecessarry execution mode check. 2013-12-18 07:06:23 +01:00
Vladimir Serbinenko
d45067a290 Add explicit thumb interwork bx in asm files. 
Shouldn't matter for armv >= 5 but let's be safe.
 2013-12-17 14:50:44 +01:00
Vladimir Serbinenko
8c534b85f1 Revamp relocation handling. 
Move more code to common dl.c. Add missing veneers for arm and arm64.
	Decreases kernel size by 70 bytes on i386-pc (40-50 compressed)
 2013-12-06 09:18:55 +01:00
Vladimir Serbinenko
9ef81064a3 * grub-core/kern/arm/cache.S: Don't switch back to ARM mode when 
compiling to thumb2.
	* grub-core/kern/arm/cache_armv7.S: Likewise.
	* grub-core/lib/arm/setjmp.S: Likewise.
 2013-11-16 17:37:06 +01:00
Leif Lindholm
11a7793221 arm: delete superflouous save of r8 in grub_uboot_syscall 2013-11-16 15:56:09 +00:00
Leif Lindholm
593865b907 arm: fix u-boot port syscall interface va_arg handling 
Commit c9cd02c broke the u-boot syscall API for va_args that spill over
to the stack, causing the disk support to stop working. This patch
resolves the problem, while keeping the new, cleaner transition_space
handling.
 2013-11-16 14:12:12 +00:00
Vladimir Serbinenko
57ffe93485 * grub-core/kern/arm/cache_armv6.S: Remove special handling for 
clang (not necessarry with -no-integrated-as).
	* include/grub/symbol.h [__arm__]: Likewise.
 2013-11-14 10:05:19 +01:00
Leif Lindholm
035a26c16a * grub-core/kern/arm/misc.S: Make thumb2-compatible. 2013-11-14 01:33:06 +01:00
Vladimir Serbinenko
2bdd07195c * grub-core/kern/arm/cache.c (probe_caches): Move asm part to ... 
* grub-core/kern/arm/cache_armv6.S: ... here. This allows this
	asm to stay in arm even if surrounding is thumb.
 2013-11-13 09:58:52 +01:00
Vladimir Serbinenko
5e77d9cfc1 * grub-core/kern/arm/misc.S: Add __muldi3 and __aeabi_lmul. Those 
helper functions are needed for thumb.
 2013-11-13 09:52:33 +01:00
Vladimir Serbinenko
c9cd02c965 * grub-core/kern/arm/uboot/startup.S: Remove = by replacing with 
literal load.
	(grub_uboot_syscall): Save/restore r9 and align stack.
 2013-11-13 06:27:03 +01:00
Vladimir Serbinenko
8149861554 * grub-core/kern/arm/cache.S: Replace = with explicit litteral load. 2013-11-13 06:23:32 +01:00
Vladimir Serbinenko
ea57de18f8 * include/grub/symbol.h (END) [__arm__]: New macros. Replace all .end 
occurencies with END.
 2013-11-13 05:19:30 +01:00
Vladimir Serbinenko
c773faf05e Revert " * include/grub/symbol.h (ADDR): New macro. Replace all occurences of" 
This reverts commit 286551b4eb.
 2013-11-13 02:17:20 +01:00
Vladimir Serbinenko
513eeb61dd * grub-core/kern/arm/cache_armv6.S [__clang__]: Don't add .armv6 when 
compiling with clang.
 2013-11-13 01:08:47 +01:00
Vladimir Serbinenko
bc379c1aa1 * grub-core/kern/arm/uboot/startup.S: Use .org rather than assigning 
".".
 2013-11-13 01:06:30 +01:00
Vladimir Serbinenko
286551b4eb * include/grub/symbol.h (ADDR): New macro. Replace all occurences of 
=x with ADDR(x) in arm assembly.
	(END): New macro. Replace all .end with END.
 2013-11-13 01:04:56 +01:00
Vladimir Serbinenko
16057d6bbb Redirect all divisions to grub_divmod64. 2013-11-13 00:53:53 +01:00
Vladimir Serbinenko
ef28ee8bc1 Add missing includes of loader.h. 2013-11-13 00:43:03 +01:00
Vladimir Serbinenko
33690255c5 Fix grub_machine_fini bitrot. 
Reported by: Glenn Washburn.
 2013-11-10 13:33:26 +01:00
Vladimir Serbinenko
e0a7bffa1e * grub-core/kern/arm/misc.S (__aeabi_unwind_cpp_pr0): Add dummy to 
link with libgcc.
 2013-11-08 07:35:13 +01:00
Vladimir 'phcoder' Serbinenko
ff2d4dc41c * grub-core/kern/arm/dl_helper.c: Use more proper %p for pointer. 2013-10-12 07:50:26 +02:00
Vladimir 'phcoder' Serbinenko
29072e994e * grub-core/kern/arm/misc.S: Remove leftover ARM and THUMB. 2013-10-08 17:03:19 +02:00
Vladimir 'phcoder' Serbinenko
a5f6ade676 * grub-core/kern/arm/efi/startup.S: Remove thumb leftover. 2013-10-07 20:04:54 +02:00
Vladimir 'phcoder' Serbinenko
3b0f3aa2a7 * grub-core/kern/arm/efi/init.c: Rewrite timer fucntion. 2013-10-07 19:23:14 +02:00
Vladimir 'phcoder' Serbinenko
c7c177f07f * grub-core/kern/arm/dl.c (do_relocations): Accept and ignore 
R_ARM_V4BX.
 2013-10-03 23:55:06 +02:00
Vladimir 'phcoder' Serbinenko
17c8bc378f * grub-core/kern/arm/cache.c: Add v5 write-through cache support. 2013-10-03 23:29:57 +02:00
Leif Lindholm
e70d6736ff * kern/arm/cache.S: Correct access to ilinesz/dlinesz variables. 
Clean up stack manipulation (sync_caches_armv*)
 2013-09-19 09:21:24 +02:00
Francesco Lavra
d60c9a81ac Fix ARM cpuid probing 2013-06-07 16:56:24 +02:00
Vladimir 'phcoder' Serbinenko
470038745c Fix a bug and stick nearer to the specification, introduce armv6_unified. 2013-05-17 13:05:28 +02:00
Vladimir 'phcoder' Serbinenko
390df92f0b Detect cache type on runtime rather than compile time 2013-05-17 01:33:22 +02:00
Leif Lindholm
c59fe1d776 Leif's BSS fix 2013-05-16 16:30:41 +02:00
Leif Lindholm
72a21cf09b Leif's ARMv6 cache support 2013-05-16 16:23:31 +02:00
Vladimir 'phcoder' Serbinenko
5bac5d9ad6 * grub-core/partmap/dfly.c: New partition map. 2013-05-16 16:18:37 +02:00
Leif Lindholm
854f383c28 Move common function to dl_helper.c 2013-05-11 10:42:11 +02:00
Leif Lindholm
b385e0723b Leif's API fixes 2013-05-03 15:07:39 +02:00
Leif Lindholm
bb9f92b9b1 Leif's build fixes 2013-05-03 14:41:08 +02:00
Vladimir 'phcoder' Serbinenko
28af3d867c Relocations cleanup 2013-04-12 16:53:58 +02:00
Vladimir 'phcoder' Serbinenko
b624c94856 Simplify init assembly 2013-04-12 16:50:58 +02:00
Leif Lindholm
389b31cd71 Initial import of Leif's work 2013-04-07 02:41:07 +02:00