From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 2/5] powerpc/64: do not link crtsavres.o in vmlinux
Date: Fri, 12 May 2017 01:56:49 +1000 [thread overview]
Message-ID: <20170511155652.8287-3-npiggin@gmail.com> (raw)
In-Reply-To: <20170511155652.8287-1-npiggin@gmail.com>
The 64-bit linker creates save/restore functions on demand with final
links, so vmlinux does not require crtsavres.o.
Make crtsavres.o extra-y on 64-bit (it is still required by modules).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/lib/Makefile | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index ed7dfce331e0..0ca405a27ac1 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -9,8 +9,12 @@ ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
CFLAGS_REMOVE_code-patching.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_feature-fixups.o = $(CC_FLAGS_FTRACE)
-obj-y += string.o alloc.o crtsavres.o code-patching.o \
- feature-fixups.o
+obj-y += string.o alloc.o code-patching.o feature-fixups.o
+
+# 64-bit linker creates .sfpr on demand for final link (vmlinux),
+# so it is only needed for modules.
+obj-$(CONFIG_PPC32) += crtsavres.o
+extra-$(CONFIG_PPC64) += crtsavres.o
obj-$(CONFIG_PPC32) += div64.o copy_32.o
--
2.11.0
next prev parent reply other threads:[~2017-05-11 15:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-11 15:56 [PATCH 0/5] Register save/restore function build improvements Nicholas Piggin
2017-05-11 15:56 ` [PATCH 1/5] powerpc/64: place sfpr section explicitly with the linker script Nicholas Piggin
2017-05-30 9:11 ` [1/5] " Michael Ellerman
2017-05-11 15:56 ` Nicholas Piggin [this message]
2017-05-11 15:56 ` [PATCH 3/5] powerpc/64: do not link crtsaveres.o in boot Nicholas Piggin
2017-05-12 14:19 ` kbuild test robot
2017-05-12 15:20 ` Nicholas Piggin
2017-05-11 15:56 ` [PATCH 4/5] powerpc/64: do not create new section for save/restore functions Nicholas Piggin
2017-05-11 15:56 ` [PATCH 5/5] powerpc/64: Linker on-demand sfpr functions for modules Nicholas Piggin
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