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authorDavid S. Miller <davem@davemloft.net>2009-02-08 22:00:55 -0800
committerDavid S. Miller <davem@davemloft.net>2009-02-08 22:00:55 -0800
commit40bdac7dbc161639a498697f34fbd1ee800e51f4 (patch)
tree5eef654722ba36d2921cafd8440d5e346f0fbdb5 /arch/sparc
parent1c2f61d40b691789626489fa947a3e003c9a84be (diff)
sparc64: Kill .fixup section bloat.
This is an implementation of a suggestion made by Chris Torek: -------------------- Something else I noticed in passing: the EX and EX_LD/EX_ST macros scattered throughout the various .S files make a fair bit of .fixup code, all of which does the same thing. At the cost of one symbol in copy_in_user.S, you could just have one common two-instruction retl-and-mov-1 fixup that they all share. -------------------- The following is with a defconfig build: text data bss dec hex filename 3972767 344024 584449 4901240 4ac978 vmlinux.orig 3968887 344024 584449 4897360 4aba50 vmlinux Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/head_64.S31
-rw-r--r--arch/sparc/lib/GENbzero.S6
-rw-r--r--arch/sparc/lib/GENcopy_from_user.S6
-rw-r--r--arch/sparc/lib/GENcopy_to_user.S6
-rw-r--r--arch/sparc/lib/NG2copy_from_user.S7
-rw-r--r--arch/sparc/lib/NG2copy_to_user.S7
-rw-r--r--arch/sparc/lib/NGbzero.S6
-rw-r--r--arch/sparc/lib/NGcopy_from_user.S7
-rw-r--r--arch/sparc/lib/NGcopy_to_user.S7
-rw-r--r--arch/sparc/lib/U1copy_from_user.S6
-rw-r--r--arch/sparc/lib/U1copy_to_user.S6
-rw-r--r--arch/sparc/lib/U3copy_from_user.S6
-rw-r--r--arch/sparc/lib/U3copy_to_user.S6
-rw-r--r--arch/sparc/lib/bzero.S6
-rw-r--r--arch/sparc/lib/copy_in_user.S6
15 files changed, 42 insertions, 77 deletions
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 8ffee714f93..a46c3a21e26 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -891,10 +891,35 @@ prom_tba: .xword 0
tlb_type: .word 0 /* Must NOT end up in BSS */
.section ".fixup",#alloc,#execinstr
- .globl __ret_efault, __retl_efault
-__ret_efault:
+ .globl __ret_efault, __retl_efault, __ret_one, __retl_one
+ENTRY(__ret_efault)
ret
restore %g0, -EFAULT, %o0
-__retl_efault:
+ENDPROC(__ret_efault)
+
+ENTRY(__retl_efault)
retl
mov -EFAULT, %o0
+ENDPROC(__retl_efault)
+
+ENTRY(__retl_one)
+ retl
+ mov 1, %o0
+ENDPROC(__retl_one)
+
+ENTRY(__ret_one_asi)
+ wr %g0, ASI_AIUS, %asi
+ ret
+ restore %g0, 1, %o0
+ENDPROC(__ret_one_asi)
+
+ENTRY(__retl_one_asi)
+ wr %g0, ASI_AIUS, %asi
+ retl
+ mov 1, %o0
+ENDPROC(__retl_one_asi)
+
+ENTRY(__retl_o1)
+ retl
+ mov %o1, %o0
+ENDPROC(__retl_o1)
diff --git a/arch/sparc/lib/GENbzero.S b/arch/sparc/lib/GENbzero.S
index 6a4f956a2f7..8e7a843ddd8 100644
--- a/arch/sparc/lib/GENbzero.S
+++ b/arch/sparc/lib/GENbzero.S
@@ -6,13 +6,9 @@
#define EX_ST(x,y) \
98: x,y; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov %o1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_o1; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/GENcopy_from_user.S b/arch/sparc/lib/GENcopy_from_user.S
index 2b9df99e87f..9b0e58f9f97 100644
--- a/arch/sparc/lib/GENcopy_from_user.S
+++ b/arch/sparc/lib/GENcopy_from_user.S
@@ -5,13 +5,9 @@
#define EX_LD(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/GENcopy_to_user.S b/arch/sparc/lib/GENcopy_to_user.S
index bb3f7084daf..ce79b495c65 100644
--- a/arch/sparc/lib/GENcopy_to_user.S
+++ b/arch/sparc/lib/GENcopy_to_user.S
@@ -5,13 +5,9 @@
#define EX_ST(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/NG2copy_from_user.S b/arch/sparc/lib/NG2copy_from_user.S
index c77ef5f2210..01ac546a86f 100644
--- a/arch/sparc/lib/NG2copy_from_user.S
+++ b/arch/sparc/lib/NG2copy_from_user.S
@@ -5,14 +5,9 @@
#define EX_LD(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: wr %g0, ASI_AIUS, %asi;\
- retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one_asi;\
.text; \
.align 4;
diff --git a/arch/sparc/lib/NG2copy_to_user.S b/arch/sparc/lib/NG2copy_to_user.S
index 4bd4093acbb..c477e1594a7 100644
--- a/arch/sparc/lib/NG2copy_to_user.S
+++ b/arch/sparc/lib/NG2copy_to_user.S
@@ -5,14 +5,9 @@
#define EX_ST(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: wr %g0, ASI_AIUS, %asi;\
- retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one_asi;\
.text; \
.align 4;
diff --git a/arch/sparc/lib/NGbzero.S b/arch/sparc/lib/NGbzero.S
index 814d5f7a45e..beab29bf419 100644
--- a/arch/sparc/lib/NGbzero.S
+++ b/arch/sparc/lib/NGbzero.S
@@ -6,13 +6,9 @@
#define EX_ST(x,y) \
98: x,y; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov %o1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_o1; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/NGcopy_from_user.S b/arch/sparc/lib/NGcopy_from_user.S
index e7f433f71b4..39bb8912c6e 100644
--- a/arch/sparc/lib/NGcopy_from_user.S
+++ b/arch/sparc/lib/NGcopy_from_user.S
@@ -5,14 +5,9 @@
#define EX_LD(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: wr %g0, ASI_AIUS, %asi;\
- ret; \
- restore %g0, 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __ret_one_asi;\
.text; \
.align 4;
diff --git a/arch/sparc/lib/NGcopy_to_user.S b/arch/sparc/lib/NGcopy_to_user.S
index 6ea01c5532a..bf62fc1a26c 100644
--- a/arch/sparc/lib/NGcopy_to_user.S
+++ b/arch/sparc/lib/NGcopy_to_user.S
@@ -5,14 +5,9 @@
#define EX_ST(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: wr %g0, ASI_AIUS, %asi;\
- ret; \
- restore %g0, 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __ret_one_asi;\
.text; \
.align 4;
diff --git a/arch/sparc/lib/U1copy_from_user.S b/arch/sparc/lib/U1copy_from_user.S
index 3192b0bf4fa..f14efdd6d4a 100644
--- a/arch/sparc/lib/U1copy_from_user.S
+++ b/arch/sparc/lib/U1copy_from_user.S
@@ -5,13 +5,9 @@
#define EX_LD(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/U1copy_to_user.S b/arch/sparc/lib/U1copy_to_user.S
index d1210ffb0b8..59d531b4a1a 100644
--- a/arch/sparc/lib/U1copy_to_user.S
+++ b/arch/sparc/lib/U1copy_to_user.S
@@ -5,13 +5,9 @@
#define EX_ST(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/U3copy_from_user.S b/arch/sparc/lib/U3copy_from_user.S
index f5bfc8d9d21..b1acd1331c3 100644
--- a/arch/sparc/lib/U3copy_from_user.S
+++ b/arch/sparc/lib/U3copy_from_user.S
@@ -5,13 +5,9 @@
#define EX_LD(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/U3copy_to_user.S b/arch/sparc/lib/U3copy_to_user.S
index 2334f111bb0..b4cbfe5a97b 100644
--- a/arch/sparc/lib/U3copy_to_user.S
+++ b/arch/sparc/lib/U3copy_to_user.S
@@ -5,13 +5,9 @@
#define EX_ST(x) \
98: x; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/bzero.S b/arch/sparc/lib/bzero.S
index c7bbae8c590..b6557297440 100644
--- a/arch/sparc/lib/bzero.S
+++ b/arch/sparc/lib/bzero.S
@@ -88,13 +88,9 @@ __bzero_done:
#define EX_ST(x,y) \
98: x,y; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov %o1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_o1; \
.text; \
.align 4;
diff --git a/arch/sparc/lib/copy_in_user.S b/arch/sparc/lib/copy_in_user.S
index 650af3f21f7..884f46499d4 100644
--- a/arch/sparc/lib/copy_in_user.S
+++ b/arch/sparc/lib/copy_in_user.S
@@ -9,13 +9,9 @@
#define EX(x,y) \
98: x,y; \
- .section .fixup; \
- .align 4; \
-99: retl; \
- mov 1, %o0; \
.section __ex_table,"a";\
.align 4; \
- .word 98b, 99b; \
+ .word 98b, __retl_one; \
.text; \
.align 4;
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