diff options
Diffstat (limited to 'meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0014-Removed-MicroBlaze-moddi3-routinue.patch')
| -rw-r--r-- | meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0014-Removed-MicroBlaze-moddi3-routinue.patch | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0014-Removed-MicroBlaze-moddi3-routinue.patch b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0014-Removed-MicroBlaze-moddi3-routinue.patch new file mode 100644 index 00000000..b0195718 --- /dev/null +++ b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0014-Removed-MicroBlaze-moddi3-routinue.patch @@ -0,0 +1,156 @@ +From a68e94fc57bcf60cb730894e49dde55d081397f5 Mon Sep 17 00:00:00 2001 +From: Mahesh Bodapati <mbodapat@xilinx.com> +Date: Sat, 26 Aug 2017 19:21:28 -0700 +Subject: [PATCH] Removed MicroBlaze moddi3 routinue + +Removed moddi3 routinue Using the default moddi3 function as the +existing implementation has many bugs + +Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com> +Signed-off-by: Mahesh Bodapati <mbodapat@xilinx.com> +Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> +Upstream-Status: Pending +--- + libgcc/config/microblaze/moddi3.S | 115 ---------------------------------- + libgcc/config/microblaze/t-microblaze | 3 +- + 2 files changed, 1 insertion(+), 117 deletions(-) + delete mode 100644 libgcc/config/microblaze/moddi3.S + +diff --git a/libgcc/config/microblaze/moddi3.S b/libgcc/config/microblaze/moddi3.S +deleted file mode 100644 +index bcea079476..0000000000 +--- a/libgcc/config/microblaze/moddi3.S ++++ /dev/null +@@ -1,115 +0,0 @@ +-################################### +-# +-# Copyright (C) 2009-2017 Free Software Foundation, Inc. +-# +-# Contributed by Michael Eager <eager@eagercon.com>. +-# +-# This file 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, or (at your option) any +-# later version. +-# +-# GCC 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. +-# +-# Under Section 7 of GPL version 3, you are granted additional +-# permissions described in the GCC Runtime Library Exception, version +-# 3.1, as published by the Free Software Foundation. +-# +-# You should have received a copy of the GNU General Public License and +-# a copy of the GCC Runtime Library Exception along with this program; +-# see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +-# <http://www.gnu.org/licenses/>. +-# +-# modsi3.S +-# +-# modulo operation for 64 bit integers. +-# +-####################################### +- +- +- .globl __moddi3 +- .ent __moddi3 +-__moddi3: +- .frame r1,0,r15 +- +-#Change the stack pointer value and Save callee saved regs +- addik r1,r1,-24 +- swi r25,r1,0 +- swi r26,r1,4 +- swi r27,r1,8 # used for sign +- swi r28,r1,12 # used for loop count +- swi r29,r1,16 # Used for div value High +- swi r30,r1,20 # Used for div value Low +- +-#Check for Zero Value in the divisor/dividend +- OR r9,r5,r6 # Check for the op1 being zero +- BEQID r9,$LaResult_Is_Zero # Result is zero +- OR r9,r7,r8 # Check for the dividend being zero +- BEQI r9,$LaDiv_By_Zero # Div_by_Zero # Division Error +- BGEId r5,$La1_Pos +- XOR r27,r5,r7 # Get the sign of the result +- RSUBI r6,r6,0 # Make dividend positive +- RSUBIC r5,r5,0 # Make dividend positive +-$La1_Pos: +- BGEI r7,$La2_Pos +- RSUBI r8,r8,0 # Make Divisor Positive +- RSUBIC r9,r9,0 # Make Divisor Positive +-$La2_Pos: +- ADDIK r4,r0,0 # Clear mod low +- ADDIK r3,r0,0 # Clear mod high +- ADDIK r29,r0,0 # clear div high +- ADDIK r30,r0,0 # clear div low +- ADDIK r28,r0,64 # Initialize the loop count +- # First part try to find the first '1' in the r5/r6 +-$LaDIV1: +- ADD r6,r6,r6 +- ADDC r5,r5,r5 # left shift logical r5 +- BGEID r5,$LaDIV1 +- ADDIK r28,r28,-1 +-$LaDIV2: +- ADD r6,r6,r6 +- ADDC r5,r5,r5 # left shift logical r5/r6 get the '1' into the Carry +- ADDC r4,r4,r4 # Move that bit into the Mod register +- ADDC r3,r3,r3 # Move carry into high mod register +- rsub r18,r7,r3 # Compare the High Parts of Mod and Divisor +- bnei r18,$L_High_EQ +- rsub r18,r6,r4 # Compare Low Parts only if Mod[h] == Divisor[h] +-$L_High_EQ: +- rSUB r26,r8,r4 # Subtract divisor[L] from Mod[L] +- rsubc r25,r7,r3 # Subtract divisor[H] from Mod[H] +- BLTi r25,$LaMOD_TOO_SMALL +- OR r3,r0,r25 # move r25 to mod [h] +- OR r4,r0,r26 # move r26 to mod [l] +- ADDI r30,r30,1 +- ADDC r29,r29,r0 +-$LaMOD_TOO_SMALL: +- ADDIK r28,r28,-1 +- BEQi r28,$LaLOOP_END +- ADD r30,r30,r30 # Shift in the '1' into div [low] +- ADDC r29,r29,r29 # Move the carry generated into high +- BRI $LaDIV2 # Div2 +-$LaLOOP_END: +- BGEI r27,$LaRETURN_HERE +- rsubi r30,r30,0 +- rsubc r29,r29,r0 +- BRI $LaRETURN_HERE +-$LaDiv_By_Zero: +-$LaResult_Is_Zero: +- or r29,r0,r0 # set result to 0 [High] +- or r30,r0,r0 # set result to 0 [Low] +-$LaRETURN_HERE: +-# Restore values of CSRs and that of r29 and the divisor and the dividend +- +- lwi r25,r1,0 +- lwi r26,r1,4 +- lwi r27,r1,8 +- lwi r28,r1,12 +- lwi r29,r1,16 +- lwi r30,r1,20 +- rtsd r15,8 +- addik r1,r1,24 +- .end __moddi3 +- +diff --git a/libgcc/config/microblaze/t-microblaze b/libgcc/config/microblaze/t-microblaze +index 96959f0292..8d954a4957 100644 +--- a/libgcc/config/microblaze/t-microblaze ++++ b/libgcc/config/microblaze/t-microblaze +@@ -1,8 +1,7 @@ +-LIB2FUNCS_EXCLUDE += _divsi3 _modsi3 _moddi3 _mulsi3 _udivsi3 _umodsi3 ++LIB2FUNCS_EXCLUDE += _divsi3 _modsi3 _mulsi3 _udivsi3 _umodsi3 + + LIB2ADD += \ + $(srcdir)/config/microblaze/divsi3.S \ +- $(srcdir)/config/microblaze/moddi3.S \ + $(srcdir)/config/microblaze/modsi3.S \ + $(srcdir)/config/microblaze/muldi3_hard.S \ + $(srcdir)/config/microblaze/mulsi3.S \ +-- +2.14.2 + |