[src/trunk]: src/sys/arch/arm/include Don't save r4 since we don't use it.

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/4360a039dcfe
branches:  trunk
changeset: 331540:4360a039dcfe
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Aug 13 22:16:24 2014 +0000

description:
Don't save r4 since we don't use it.

diffstat:

 sys/arch/arm/include/profile.h |  16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diffs (55 lines):

diff -r 1d10f59e10a0 -r 4360a039dcfe sys/arch/arm/include/profile.h
--- a/sys/arch/arm/include/profile.h    Wed Aug 13 21:41:32 2014 +0000
+++ b/sys/arch/arm/include/profile.h    Wed Aug 13 22:16:24 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: profile.h,v 1.14 2014/05/11 02:02:14 joerg Exp $       */
+/*     $NetBSD: profile.h,v 1.15 2014/08/13 22:16:24 matt Exp $        */
 
 /*
  * Copyright (c) 2001 Ben Harris
@@ -90,10 +90,10 @@
        /*                                                              \
         * Preserve registers that are trashed during mcount            \
         */                                                             \
-       __asm("push     {r0-r4, ip, lr}");                              \
+       __asm("push     {r0-r3, ip, lr}");                              \
        __asm(".cfi_def_cfa_offset 24");                                \
        __asm(".cfi_offset 14, -4");                                    \
-       __asm(".cfi_offset 4, -8");                                     \
+       __asm(".cfi_offset 12, -8");                                    \
        __asm(".cfi_offset 3, -12");                                    \
        __asm(".cfi_offset 2, -16");                                    \
        __asm(".cfi_offset 1, -20");                                    \
@@ -116,7 +116,7 @@
        /*                                                              \
         * Restore registers that were trashed during mcount            \
         */                                                             \
-       __asm("pop      {r0-r4, lr, pc}");                              \
+       __asm("pop      {r0-r3, lr, pc}");                              \
        __asm(".cfi_endproc");                                          \
        __asm(".size    " MCOUNT_ASM_NAME ", .-" MCOUNT_ASM_NAME);
 #else
@@ -132,11 +132,11 @@
        /*                                                              \
         * Preserve registers that are trashed during mcount            \
         */                                                             \
-       __asm("push     {r0-r4, ip, lr}");                              \
-       __asm(".save {r0-r4, lr}");                                     \
+       __asm("push     {r0-r3, ip, lr}");                              \
+       __asm(".save {r0-r3, lr}");                                     \
        __asm(".cfi_def_cfa_offset 24");                                \
        __asm(".cfi_offset 14, -4");                                    \
-       __asm(".cfi_offset 4, -8");                                     \
+       __asm(".cfi_offset 12, -8");                                    \
        __asm(".cfi_offset 3, -12");                                    \
        __asm(".cfi_offset 2, -16");                                    \
        __asm(".cfi_offset 1, -20");                                    \
@@ -159,7 +159,7 @@
        /*                                                              \
         * Restore registers that were trashed during mcount            \
         */                                                             \
-       __asm("pop      {r0-r4, lr, pc}");                              \
+       __asm("pop      {r0-r3, lr, pc}");                              \
        __asm(".cfi_endproc");                                          \
        __asm(".fnend");                                                \
        __asm(".size    " MCOUNT_ASM_NAME ", .-" MCOUNT_ASM_NAME);