kernel_optimize_test/arch
Jens Rottmann 16252da654 x86 setup: don't recalculate ss:esp unless really necessary
In order to work around old LILO versions providing an invalid ss
register, the current setup code always sets up a new stack,
immediately following .bss and the heap. But this breaks LOADLIN.

This rewrite of the workaround checks for an invalid stack (ss!=ds)
first, and leaves ss:sp alone otherwise (apart from aligning esp).

[hpa note: LOADLIN has a number of arbitrary hard-coded limits that
are being pushed up against.  Without some major revision of LOADLIN
itself it will not be sustainable keeping it alive.  This gives it
another brief lease on life, however.  This patch also helps the
cmdline truncation problem with old versions of SYSLINUX.]

Signed-off-by: Jens Rottmann <JRottmann at LiPPERT-AT. de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-11-28 18:17:17 -08:00
..
alpha alpha: fix sg_page breakage 2007-11-27 09:19:39 +01:00
arm Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-11-16 18:32:08 -08:00
avr32 [AVR32] Export intc_get_pending symbol 2007-11-15 13:47:20 +01:00
blackfin Blackfin arch: fix bug when enable uart1 with uart0 disabled => no initial console 2007-11-21 17:04:41 +08:00
cris ide: move CONFIG_IDE_ETRAX to drivers/ide/Kconfig 2007-11-27 21:35:55 +01:00
frv FRV: Remove the section annotation on free_initmem() 2007-11-09 15:02:25 -08:00
h8300 Kbuild/doc: fix links to Documentation files 2007-10-30 14:26:30 -07:00
ia64 Add IORESOUCE_BUSY flag for System RAM 2007-11-14 18:45:39 -08:00
m32r m32r: Update sys_rt_sigsuspend 2007-11-28 01:24:04 +09:00
m68k m68k: export atari_keyb_init 2007-11-26 19:15:31 -08:00
m68knommu m68knommu: mark mem init functions as __init 2007-10-23 20:45:44 -07:00
mips [MIPS] vpe: Add missing "space" 2007-11-26 17:26:15 +00:00
parisc
powerpc [POWERPC] 83xx: Update mpc8349emitx(gp) defconfig for USB 2007-11-20 15:39:54 -06:00
ppc [POWERPC] Fix 8xx build breakage due to _tlbie changes 2007-11-20 18:42:00 +11:00
s390 [S390] Add missing die_notifier() call to die(). 2007-11-20 11:13:48 +01:00
sh sh: include ax88796 in the defconfig for r7785rp 2007-11-23 14:39:55 +09:00
sh64 sh64: Kill off duplicate includes. 2007-11-05 12:18:17 +09:00
sparc [SPARC]: Remove duplicate includes. 2007-11-06 21:23:11 -08:00
sparc64 [SPARC]: Remove duplicate includes. 2007-11-06 21:23:11 -08:00
um uml: fix build for !CONFIG_PRINTK 2007-11-14 18:45:43 -08:00
v850
x86 x86 setup: don't recalculate ss:esp unless really necessary 2007-11-28 18:17:17 -08:00
xtensa Kbuild/doc: fix links to Documentation files 2007-10-30 14:26:30 -07:00