From: Francis Laniel Date: Sat, 1 Apr 2023 21:54:39 +0000 (+0100) Subject: arm: lib: add __gnu_thumb1_case_si X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=5ffcf7c59065477865a542159a9bcddf0929c36e;p=u-boot.git arm: lib: add __gnu_thumb1_case_si The assembly for __gnu_thumb1_case_si was taken from upstream gcc and adapted as width suffix was removed for the add instruction [1]. Signed-off-by: Francis Laniel Tested-by: Tony Dinh [1] https://github.com/gcc-mirror/gcc/blob/4f181f9c7ee3efc509d185fdfda33be9018f1611/libgcc/config/arm/lib1funcs.S#L2156 Acked-by: Pali Rohár Acked-by: Tony Dinh --- diff --git a/arch/arm/lib/lib1funcs.S b/arch/arm/lib/lib1funcs.S index de15d09e36..a1f44d9454 100644 --- a/arch/arm/lib/lib1funcs.S +++ b/arch/arm/lib/lib1funcs.S @@ -419,4 +419,21 @@ ENTRY(__gnu_thumb1_case_uhi) ret lr ENDPROC(__gnu_thumb1_case_uhi) .popsection + +/* Taken and adapted from: https://github.com/gcc-mirror/gcc/blob/4f181f9c7ee3efc509d185fdfda33be9018f1611/libgcc/config/arm/lib1funcs.S#L2156 */ +.pushsection .text.__gnu_thumb1_case_si, "ax" +ENTRY(__gnu_thumb1_case_si) + push {r0, r1} + mov r1, lr + adds r1, r1, #2 /* Align to word. */ + lsrs r1, r1, #2 + lsls r0, r0, #2 + lsls r1, r1, #2 + ldr r0, [r1, r0] + adds r0, r0, r1 + mov lr, r0 + pop {r0, r1} + mov pc, lr /* We know we were called from thumb code. */ +ENDPROC(__gnu_thumb1_case_si) +.popsection #endif