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authorTejun Heo <tj@kernel.org>2009-07-08 22:27:40 -0400
committerTejun Heo <tj@kernel.org>2009-07-08 22:27:40 -0400
commit023bf6f1b8bf58dc4da7f0dc1cf4787b0d5297c1 (patch)
tree780331cadf207ced67dfcdf36a6479dc0e3d3c04 /arch/s390/kernel/vmlinux.lds.S
parent1dcdd0911b5553f0282ce8525773955b59a56919 (diff)
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/s390/kernel/vmlinux.lds.S')
-rw-r--r--arch/s390/kernel/vmlinux.lds.S10
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 98867dfea469..82415c75b996 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -157,14 +157,10 @@ SECTIONS
157 157
158 _end = . ; 158 _end = . ;
159 159
160 /* Sections to be discarded */
161 /DISCARD/ : {
162 EXIT_DATA
163 *(.exitcall.exit)
164 *(.discard)
165 }
166
167 /* Debugging sections. */ 160 /* Debugging sections. */
168 STABS_DEBUG 161 STABS_DEBUG
169 DWARF_DEBUG 162 DWARF_DEBUG
163
164 /* Sections to be discarded */
165 DISCARDS
170} 166}