From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- grub-core/kern/arm/compiler-rt.S | 86 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 grub-core/kern/arm/compiler-rt.S (limited to 'grub-core/kern/arm/compiler-rt.S') diff --git a/grub-core/kern/arm/compiler-rt.S b/grub-core/kern/arm/compiler-rt.S new file mode 100644 index 0000000..645b42f --- /dev/null +++ b/grub-core/kern/arm/compiler-rt.S @@ -0,0 +1,86 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2013 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include +#include + + .file "misc.S" + .text + .syntax unified +#if !defined (__thumb2__) + .arm +#else + .thumb +#endif + + .align 2 + +FUNCTION(__muldi3) +FUNCTION(__aeabi_lmul) + stmfd sp!, {r4, fp} + add fp, sp, #4 + sub sp, sp, #16 + str r0, [fp, #-12] + str r1, [fp, #-8] + str r2, [fp, #-20] + str r3, [fp, #-16] + ldr r3, [fp, #-8] + ldr r2, [fp, #-20] + mul r2, r3, r2 + ldr r3, [fp, #-16] + ldr r1, [fp, #-12] + mul r3, r1, r3 + add r2, r2, r3 + ldr r0, [fp, #-12] + ldr r1, [fp, #-20] + umull r3, r4, r0, r1 + add r2, r2, r4 + mov r4, r2 + mov r0, r3 + mov r1, r4 + mov sp, fp + sub sp, sp, #4 + ldmfd sp!, {r4, fp} + bx lr + + .macro division32 parent + + sub sp, sp, #8 @ Allocate naturally aligned 64-bit space + stmfd sp!, {r3,lr} @ Dummy r3 to maintain stack alignment + add r2, sp, #8 @ Set r2 to address of 64-bit space + bl \parent + ldr r1, [sp, #8] @ Extract remainder + ldmfd sp!, {r3,lr} @ Pop into an unused arg/scratch register + add sp, sp, #8 + bx lr + .endm + +FUNCTION(__aeabi_uidivmod) + division32 grub_divmod32 +FUNCTION(__aeabi_idivmod) + division32 grub_divmod32s + +/* + * Null divide-by-zero handler + */ +FUNCTION(__aeabi_unwind_cpp_pr0) +FUNCTION(raise) + mov r0, #0 + bx lr + + END -- cgit v1.2.3