Vivek Goyal 6569580de7 [PATCH] i386: Distinguish absolute symbols ... Ld knows about 2 kinds of symbols, absolute and section relative. Section relative symbols symbols change value when a section is moved and absolute symbols do not. Currently in the linker script we have several labels marking the beginning and ending of sections that are outside of sections, making them absolute symbols. Having a mixture of absolute and section relative symbols refereing to the same data is currently harmless but it is confusing. This must be done carefully as newer revs of ld do not place symbols that appear in sections without data and instead ld makes those symbols global :( My ultimate goal is to build a relocatable kernel. The safest and least intrusive technique is to generate relocation entries so the kernel can be relocated at load time. The only penalty would be an increase in the size of the kernel binary. The problem is that if absolute and relocatable symbols are not properly specified absolute symbols will be relocated or section relative symbols won't be, which is fatal. The practical motivation is that when generating kernels that will run from a reserved area for analyzing what caused a kernel panic, it is simpler if you don't need to hard code the physical memory location they will run at, especially for the distributions. [AK: and merged:] o Also put a message so that in future people can be aware of it and avoid introducing absolute symbols. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>		2006-12-07 02:14:03 +01:00
..
boot	[PATCH] Some config.h removals	2006-10-01 00:39:34 -07:00
crypto	[CRYPTO] api: Get rid of flags argument to setkey	2006-09-21 11:41:02 +10:00
kernel	[PATCH] i386: Distinguish absolute symbols	2006-12-07 02:14:03 +01:00
lib	[PATCH] separate bdi congestion functions from queue congestion functions	2006-10-20 10:26:35 -07:00
mach-default	[PATCH] irq-flags: i386: Use the new IRQF_ constants	2006-07-02 13:58:47 -07:00
mach-es7000	[PATCH] Compilation fix for ES7000 when no ACPI is specified in config (i386)	2006-03-23 07:38:04 -08:00
mach-generic	[PATCH] i386: Replace i386 open-coded cmdline parsing with	2006-09-26 10:52:32 +02:00
mach-visws	[PATCH] visws build fix	2006-10-28 11:30:52 -07:00
mach-voyager	[PATCH] i386: Initialize the per-CPU data area	2006-12-07 02:14:02 +01:00
math-emu	[PATCH] i386: fix must_checks	2006-12-07 02:14:00 +01:00
mm	[PATCH] mm: use symbolic names instead of indices for zone initialisation	2006-10-11 11:14:14 -07:00
oprofile	[PATCH] oprofile: ppro: need to enable/disable all the counters	2006-09-29 09:18:11 -07:00
pci	[PATCH] x86: remove last two pci_find offenders in the core code	2006-12-07 02:14:03 +01:00
power	[PATCH] Change the name of pagedir_nosave	2006-09-26 08:49:01 -07:00
defconfig	[PATCH] i386: Update defconfig	2006-12-07 02:14:00 +01:00
Kconfig	Attack of "the the"s in arch	2006-10-03 22:21:02 +02:00
Kconfig.cpu	[PATCH] uml: fix processor selection to exclude unsupported processors and features	2006-10-11 11:14:20 -07:00
Kconfig.debug	[PATCH] lockdep: irqtrace subsystem, i386 support	2006-07-03 15:27:03 -07:00
Makefile	[PATCH] x86: Use -maccumulate-outgoing-args	2006-10-21 18:37:01 +02:00
Makefile.cpu	[PATCH] x86-64: Use -mtune=generic for generic kernels	2006-03-25 09:10:52 -08:00