Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1e1ed39faec635b109ff8c516377310600623674
Commit: 1e1ed39faec635b109ff8c516377310600623674
Parent: fb8e569c1d4f44a4632e2db95a27ed45734d4705
Author: Paul Mundt <[EMAIL PROTECTED]>
AuthorDate: Wed Nov 21 17:58:13 2007 +0900
Committer: Paul Mundt <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 13:18:53 2008 +0900
sh: Copy over special CFLAGS for SH-5 TLB miss.
Signed-off-by: Paul Mundt <[EMAIL PROTECTED]>
---
arch/sh/mm/Makefile_64 | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 5ff8358..2731cf1 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -17,3 +17,28 @@ obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_NUMA) += numa.o
EXTRA_CFLAGS += -Werror
+
+# Special flags for fault_64.o. This puts restrictions on the number of
+# caller-save registers that the compiler can target when building this file.
+# This is required because the code is called from a context in entry.S where
+# very few registers have been saved in the exception handler (for speed
+# reasons).
+# The caller save registers that have been saved and which can be used are
+# r2,r3,r4,r5 : argument passing
+# r15, r18 : SP and LINK
+# tr0-4 : allow all caller-save TR's. The compiler seems to be able to make
+# use of them, so it's probably beneficial to performance to save them
+# and have them available for it.
+#
+# The resources not listed below are callee save, i.e. the compiler is free to
+# use any of them and will spill them to the stack itself.
+
+CFLAGS_fault_64.o += -ffixed-r7 \
+ -ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \
+ -ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \
+ -ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \
+ -ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \
+ -ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \
+ -ffixed-r41 -ffixed-r42 -ffixed-r43 \
+ -ffixed-r60 -ffixed-r61 -ffixed-r62 \
+ -fomit-frame-pointer
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
