diff options
Diffstat (limited to 'libc/string/arm/strcmp.S')
| -rw-r--r-- | libc/string/arm/strcmp.S | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libc/string/arm/strcmp.S b/libc/string/arm/strcmp.S index 89aa38874..97363c1c2 100644 --- a/libc/string/arm/strcmp.S +++ b/libc/string/arm/strcmp.S @@ -30,17 +30,35 @@ */ #include <features.h> +#include <bits/arm_asm.h> .text .global strcmp .type strcmp,%function .align 4 +#if defined(__thumb__) && !defined(__thumb2__) +.thumb_func +strcmp: +1: + ldrb r2, [r0] + add r0, r0, #1 + ldrb r3, [r1] + add r1, r1, #1 + cmp r2, #0 + beq 2f + cmp r2, r3 + beq 1b +2: + sub r0, r2, r3 + bx lr +#else strcmp: 1: ldrb r2, [r0], #1 ldrb r3, [r1], #1 cmp r2, #1 + IT(t, cs) cmpcs r2, r3 beq 1b sub r0, r2, r3 @@ -49,6 +67,7 @@ strcmp: #else mov pc, lr #endif +#endif .size strcmp,.-strcmp |