From 133befd278f64c2019d842e6ac658db389ce40d4 Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Wed, 4 May 2016 00:43:08 +0200 Subject: [PATCH] Fixed SP init in scripts/{csmith,cxxdemo}/ --- scripts/csmith/start.S | 8 ++++++-- scripts/cxxdemo/start.S | 8 ++++++-- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/scripts/csmith/start.S b/scripts/csmith/start.S index 33114cc..f872a14 100644 --- a/scripts/csmith/start.S +++ b/scripts/csmith/start.S @@ -40,9 +40,13 @@ addi x31, zero, 0 lui sp, %hi(4*1024*1024) addi sp, sp, %lo(4*1024*1024) -/* push a zero on the stack */ -addi sp,sp,-4 +/* push zeros on the stack for argc and argv */ +/* (stack is aligned to 16 bytes in riscv calling convention) */ +addi sp,sp,-16 sw zero,0(sp) +sw zero,4(sp) +sw zero,8(sp) +sw zero,12(sp) /* jump to libc init */ j _ftext diff --git a/scripts/cxxdemo/start.S b/scripts/cxxdemo/start.S index 33114cc..f872a14 100644 --- a/scripts/cxxdemo/start.S +++ b/scripts/cxxdemo/start.S @@ -40,9 +40,13 @@ addi x31, zero, 0 lui sp, %hi(4*1024*1024) addi sp, sp, %lo(4*1024*1024) -/* push a zero on the stack */ -addi sp,sp,-4 +/* push zeros on the stack for argc and argv */ +/* (stack is aligned to 16 bytes in riscv calling convention) */ +addi sp,sp,-16 sw zero,0(sp) +sw zero,4(sp) +sw zero,8(sp) +sw zero,12(sp) /* jump to libc init */ j _ftext