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| author | Tejun Heo <tj@kernel.org> | 2009-07-09 11:27:40 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-07-09 11:27:40 +0900 |
| commit | 023bf6f1b8bf58dc4da7f0dc1cf4787b0d5297c1 (patch) | |
| tree | 780331cadf207ced67dfcdf36a6479dc0e3d3c04 /arch/um | |
| parent | 1dcdd0911b5553f0282ce8525773955b59a56919 (diff) | |
| download | op-kernel-dev-023bf6f1b8bf58dc4da7f0dc1cf4787b0d5297c1.zip op-kernel-dev-023bf6f1b8bf58dc4da7f0dc1cf4787b0d5297c1.tar.gz | |
linker script: unify usage of discard definition
Discarded sections in different archs share some commonality but have
considerable differences. This led to linker script for each arch
implementing its own /DISCARD/ definition, which makes maintaining
tedious and adding new entries error-prone.
This patch makes all linker scripts to move discard definitions to the
end of the linker script and use the common DISCARDS macro. As ld
uses the first matching section definition, archs can include default
discarded sections by including them earlier in the linker script.
ia64 is notable because it first throws away some ia64 specific
subsections and then include the rest of the sections into the final
image, so those sections must be discarded before the inclusion.
defconfig compile tested for x86, x86-64, powerpc, powerpc64, ia64,
alpha, sparc, sparc64 and s390. Michal Simek tested microblaze.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Tested-by: Michal Simek <monstr@monstr.eu>
Cc: linux-arch@vger.kernel.org
Cc: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/include/asm/common.lds.S | 5 | ||||
| -rw-r--r-- | arch/um/kernel/dyn.lds.S | 2 | ||||
| -rw-r--r-- | arch/um/kernel/uml.lds.S | 2 |
3 files changed, 2 insertions, 7 deletions
diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S index cb02486..37ecc55 100644 --- a/arch/um/include/asm/common.lds.S +++ b/arch/um/include/asm/common.lds.S @@ -123,8 +123,3 @@ __initramfs_end = .; } - /* Sections to be discarded */ - /DISCARD/ : { - *(.exitcall.exit) - } - diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S index 2916d6e..715a188 100644 --- a/arch/um/kernel/dyn.lds.S +++ b/arch/um/kernel/dyn.lds.S @@ -157,5 +157,5 @@ SECTIONS DWARF_DEBUG - /DISCARD/ : { *(.discard) } + DISCARDS } diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S index 1f8a622..2ebd397 100644 --- a/arch/um/kernel/uml.lds.S +++ b/arch/um/kernel/uml.lds.S @@ -101,5 +101,5 @@ SECTIONS DWARF_DEBUG - /DISCARD/ : { *(.discard) } + DISCARDS } |
