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authorMax Filippov <jcmvbkbc@gmail.com>2017-12-10 08:22:37 +0300
committerMax Filippov <jcmvbkbc@gmail.com>2017-12-11 01:48:54 +0300
commit5cf97ebd8b40e2b1791136fc1476d17365864b18 (patch)
tree28f7123d675169d6e360832b9c1e879845219162 /arch/xtensa/lib
parentfbb871e220672a8e9e4e7870da5b206fe05904b2 (diff)
downloadlinux-5cf97ebd8b40e2b1791136fc1476d17365864b18.tar.xz
xtensa: clean up functions in assembly code
Use ENTRY and ENDPROC throughout arch/xtensa/lib assembly sources. Introduce asm/linkage.h and define xtensa-specific __ALIGN macro there. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/lib')
-rw-r--r--arch/xtensa/lib/memcopy.S30
-rw-r--r--arch/xtensa/lib/memset.S8
-rw-r--r--arch/xtensa/lib/strncpy_user.S8
-rw-r--r--arch/xtensa/lib/strnlen_user.S9
-rw-r--r--arch/xtensa/lib/usercopy.S8
5 files changed, 27 insertions, 36 deletions
diff --git a/arch/xtensa/lib/memcopy.S b/arch/xtensa/lib/memcopy.S
index 9bda748a1e3e..24d650864c3a 100644
--- a/arch/xtensa/lib/memcopy.S
+++ b/arch/xtensa/lib/memcopy.S
@@ -9,6 +9,7 @@
* Copyright (C) 2002 - 2012 Tensilica Inc.
*/
+#include <linux/linkage.h>
#include <variant/core.h>
#include <asm/asmmacro.h>
@@ -108,10 +109,7 @@
addi a5, a5, 2
j .Ldstaligned # dst is now aligned, return to main algorithm
- .align 4
- .global memcpy
- .type memcpy,@function
-memcpy:
+ENTRY(memcpy)
entry sp, 16 # minimal stack frame
# a2/ dst, a3/ src, a4/ len
@@ -273,14 +271,14 @@ memcpy:
s8i a6, a5, 0
retw
+ENDPROC(memcpy)
/*
* void bcopy(const void *src, void *dest, size_t n);
*/
- .align 4
- .global bcopy
- .type bcopy,@function
-bcopy:
+
+ENTRY(bcopy)
+
entry sp, 16 # minimal stack frame
# a2=src, a3=dst, a4=len
mov a5, a3
@@ -288,6 +286,8 @@ bcopy:
mov a2, a5
j .Lmovecommon # go to common code for memmove+bcopy
+ENDPROC(bcopy)
+
/*
* void *memmove(void *dst, const void *src, size_t len);
*
@@ -376,10 +376,7 @@ bcopy:
j .Lbackdstaligned # dst is now aligned,
# return to main algorithm
- .align 4
- .global memmove
- .type memmove,@function
-memmove:
+ENTRY(memmove)
entry sp, 16 # minimal stack frame
# a2/ dst, a3/ src, a4/ len
@@ -551,11 +548,4 @@ memmove:
s8i a6, a5, 0
retw
-
-/*
- * Local Variables:
- * mode:fundamental
- * comment-start: "# "
- * comment-start-skip: "# *"
- * End:
- */
+ENDPROC(memmove)
diff --git a/arch/xtensa/lib/memset.S b/arch/xtensa/lib/memset.S
index 7a724edaf4f1..a6cd04ba966f 100644
--- a/arch/xtensa/lib/memset.S
+++ b/arch/xtensa/lib/memset.S
@@ -11,6 +11,7 @@
* Copyright (C) 2002 Tensilica Inc.
*/
+#include <linux/linkage.h>
#include <variant/core.h>
#include <asm/asmmacro.h>
@@ -30,10 +31,8 @@
*/
.text
-.align 4
-.global memset
-.type memset,@function
-memset:
+ENTRY(memset)
+
entry sp, 16 # minimal stack frame
# a2/ dst, a3/ c, a4/ length
extui a3, a3, 0, 8 # mask to just 8 bits
@@ -141,6 +140,7 @@ EX(10f) s8i a3, a5, 0
.Lbytesetdone:
retw
+ENDPROC(memset)
.section .fixup, "ax"
.align 4
diff --git a/arch/xtensa/lib/strncpy_user.S b/arch/xtensa/lib/strncpy_user.S
index 827e1b393f3f..5fce16b67dca 100644
--- a/arch/xtensa/lib/strncpy_user.S
+++ b/arch/xtensa/lib/strncpy_user.S
@@ -12,6 +12,7 @@
*/
#include <linux/errno.h>
+#include <linux/linkage.h>
#include <variant/core.h>
#include <asm/asmmacro.h>
@@ -47,10 +48,8 @@
# a12/ tmp
.text
-.align 4
-.global __strncpy_user
-.type __strncpy_user,@function
-__strncpy_user:
+ENTRY(__strncpy_user)
+
entry sp, 16 # minimal stack frame
# a2/ dst, a3/ src, a4/ len
mov a11, a2 # leave dst in return value register
@@ -202,6 +201,7 @@ EX(10f) s8i a9, a11, 0
sub a2, a11, a2 # compute strlen
retw
+ENDPROC(__strncpy_user)
.section .fixup, "ax"
.align 4
diff --git a/arch/xtensa/lib/strnlen_user.S b/arch/xtensa/lib/strnlen_user.S
index 9404ac46ce4c..0b956ce7f386 100644
--- a/arch/xtensa/lib/strnlen_user.S
+++ b/arch/xtensa/lib/strnlen_user.S
@@ -11,6 +11,7 @@
* Copyright (C) 2002 Tensilica Inc.
*/
+#include <linux/linkage.h>
#include <variant/core.h>
#include <asm/asmmacro.h>
@@ -42,10 +43,8 @@
# a10/ tmp
.text
-.align 4
-.global __strnlen_user
-.type __strnlen_user,@function
-__strnlen_user:
+ENTRY(__strnlen_user)
+
entry sp, 16 # minimal stack frame
# a2/ s, a3/ len
addi a4, a2, -4 # because we overincrement at the end;
@@ -133,6 +132,8 @@ EX(10f) l32i a9, a4, 0 # get word with first two bytes of string
sub a2, a4, a2 # subtract to get length
retw
+ENDPROC(__strnlen_user)
+
.section .fixup, "ax"
.align 4
10:
diff --git a/arch/xtensa/lib/usercopy.S b/arch/xtensa/lib/usercopy.S
index 0959b6e71f11..64ab1971324f 100644
--- a/arch/xtensa/lib/usercopy.S
+++ b/arch/xtensa/lib/usercopy.S
@@ -53,14 +53,13 @@
* a11/ original length
*/
+#include <linux/linkage.h>
#include <variant/core.h>
#include <asm/asmmacro.h>
.text
- .align 4
- .global __xtensa_copy_user
- .type __xtensa_copy_user,@function
-__xtensa_copy_user:
+ENTRY(__xtensa_copy_user)
+
entry sp, 16 # minimal stack frame
# a2/ dst, a3/ src, a4/ len
mov a5, a2 # copy dst so that a2 is return value
@@ -267,6 +266,7 @@ EX(10f) s8i a6, a5, 0
movi a2, 0 # return success for len bytes copied
retw
+ENDPROC(__xtensa_copy_user)
.section .fixup, "ax"
.align 4