Fix ARM assembly when building __PIC__
From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
* cipher/camellia-arm.S (GET_DATA_POINTER): New.
(_gcry_camellia_arm_encrypt_block): Use GET_DATA_POINTER.
(_gcry_camellia_arm_decrypt_block): Ditto.
* cipher/cast5-arm.S (GET_DATA_POINTER): New.
(_gcry_cast5_arm_encrypt_block, _gcry_cast5_arm_decrypt_block)
(_gcry_cast5_arm_enc_blk2, _gcry_cast5_arm_dec_blk2): Use
GET_DATA_POINTER.
* cipher/rijndael-arm.S (GET_DATA_POINTER): New.
(_gcry_aes_arm_encrypt_block, _gcry_aes_arm_decrypt_block): Use
GET_DATA_POINTER.
--
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
---
cipher/camellia-arm.S | 17 +++++++++++++++--
cipher/cast5-arm.S | 21 +++++++++++++++++----
cipher/rijndael-arm.S | 17 +++++++++++++++--
3 files changed, 47 insertions(+), 8 deletions(-)
diff --git a/cipher/camellia-arm.S b/cipher/camellia-arm.S
index c30d194..cdeaf8b 100644
--- a/cipher/camellia-arm.S
+++ b/cipher/camellia-arm.S
@@ -28,6 +28,19 @@
.syntax unified
.arm
+#ifdef __PIC__
+# define GET_DATA_POINTER(reg, name, rtmp) \
+ ldr reg, 1f; \
+ ldr rtmp, 2f; \
+ b 3f; \
+ 1: .word _GLOBAL_OFFSET_TABLE_-(3f+8); \
+ 2: .word name(GOT); \
+ 3: add reg, pc, reg; \
+ ldr reg, [reg, rtmp];
+#else
+# define GET_DATA_POINTER(reg, name, rtmp) ldr reg, =name
+#endif
+
/* struct camellia_ctx: */
#define key_table 0
@@ -261,7 +274,7 @@ _gcry_camellia_arm_encrypt_block:
*/
push {%r1, %r4-%r11, %ip, %lr};
- ldr RTAB1, =.Lcamellia_sp1110;
+ GET_DATA_POINTER(RTAB1, .Lcamellia_sp1110, RTAB3);
mov RMASK, #0xff;
add RTAB3, RTAB1, #(2 * 4);
push {%r3};
@@ -309,7 +322,7 @@ _gcry_camellia_arm_decrypt_block:
*/
push {%r1, %r4-%r11, %ip, %lr};
- ldr RTAB1, =.Lcamellia_sp1110;
+ GET_DATA_POINTER(RTAB1, .Lcamellia_sp1110, RTAB3);
mov RMASK, #0xff;
add RTAB3, RTAB1, #(2 * 4);
mov RMASK, RMASK, lsl#4 /* byte mask */
diff --git a/cipher/cast5-arm.S b/cipher/cast5-arm.S
index ce7fa93..db96db4 100644
--- a/cipher/cast5-arm.S
+++ b/cipher/cast5-arm.S
@@ -30,6 +30,19 @@
.extern _gcry_cast5_s1to4;
+#ifdef __PIC__
+# define GET_DATA_POINTER(reg, name, rtmp) \
+ ldr reg, 1f; \
+ ldr rtmp, 2f; \
+ b 3f; \
+ 1: .word _GLOBAL_OFFSET_TABLE_-(3f+8); \
+ 2: .word name(GOT); \
+ 3: add reg, pc, reg; \
+ ldr reg, [reg, rtmp];
+#else
+# define GET_DATA_POINTER(reg, name, rtmp) ldr reg, =name
+#endif
+
/* structure of crypto context */
#define Km 0
#define Kr (Km + (16 * 4))
@@ -260,7 +273,7 @@ _gcry_cast5_arm_encrypt_block:
*/
push {%r1, %r4-%r11, %ip, %lr};
- ldr Rs1, =_gcry_cast5_s1to4;
+ GET_DATA_POINTER(Rs1, _gcry_cast5_s1to4, Rs2);
mov RMASK, #(0xff << 2);
add Rs2, Rs1, #(0x100*4);
add Rs3, Rs1, #(0x100*4*2);
@@ -306,7 +319,7 @@ _gcry_cast5_arm_decrypt_block:
*/
push {%r1, %r4-%r11, %ip, %lr};
- ldr Rs1, =_gcry_cast5_s1to4;
+ GET_DATA_POINTER(Rs1, _gcry_cast5_s1to4, Rs2);
mov RMASK, #(0xff << 2);
add Rs2, Rs1, #(0x100 * 4);
add Rs3, Rs1, #(0x100 * 4 * 2);
@@ -500,7 +513,7 @@ _gcry_cast5_arm_enc_blk2:
*/
push {%lr};
- ldr Rs1, =_gcry_cast5_s1to4;
+ GET_DATA_POINTER(Rs1, _gcry_cast5_s1to4, Rs2);
mov RMASK, #(0xff << 2);
add Rs2, Rs1, #(0x100 * 4);
@@ -631,7 +644,7 @@ _gcry_cast5_arm_dec_blk2:
* [RR0, RL0], [RR1, RL1]: dst
*/
- ldr Rs1, =_gcry_cast5_s1to4;
+ GET_DATA_POINTER(Rs1, _gcry_cast5_s1to4, Rs2);
mov RMASK, #(0xff << 2);
add Rs2, Rs1, #(0x100 * 4);
diff --git a/cipher/rijndael-arm.S b/cipher/rijndael-arm.S
index 22c350c..421c3b4 100644
--- a/cipher/rijndael-arm.S
+++ b/cipher/rijndael-arm.S
@@ -28,6 +28,19 @@
.syntax unified
.arm
+#ifdef __PIC__
+# define GET_DATA_POINTER(reg, name, rtmp) \
+ ldr reg, 1f; \
+ ldr rtmp, 2f; \
+ b 3f; \
+ 1: .word _GLOBAL_OFFSET_TABLE_-(3f+8); \
+ 2: .word name(GOT); \
+ 3: add reg, pc, reg; \
+ ldr reg, [reg, rtmp];
+#else
+# define GET_DATA_POINTER(reg, name, rtmp) ldr reg, =name
+#endif
+
/* register macros */
#define CTX %r0
#define RTAB %lr
@@ -249,7 +262,7 @@ _gcry_aes_arm_encrypt_block:
2:
sub %sp, #16;
- ldr RTAB, =.LtableE0;
+ GET_DATA_POINTER(RTAB, .LtableE0, RMASK);
str %r1, [%sp, #4]; /* dst */
mov RMASK, #0xff;
@@ -503,7 +516,7 @@ _gcry_aes_arm_decrypt_block:
2:
sub %sp, #16;
- ldr RTAB, =.LtableD0;
+ GET_DATA_POINTER(RTAB, .LtableD0, RMASK);
mov RMASK, #0xff;
str %r1, [%sp, #4]; /* dst */