From: Alec Roelke <ar4jc@virginia.edu>
Date: Thu, 14 Dec 2017 00:00:11 +0000 (-0500)
Subject: arch-riscv: Increase maximum stack size
X-Git-Tag: v19.0.0.0~2426
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e43d24590329453a8fbf14850a3884b3919b74aa;p=gem5.git

arch-riscv: Increase maximum stack size

This patch increases the maximum stack size of RISC-V, which should help
to reduce problems with programs that allocate large amounts of data on
the stack or do many small allocations.

Change-Id: I1d760050229b12f01a4a8f24c047b587299fef6d
Reviewed-on: https://gem5-review.googlesource.com/6661
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Alec Roelke <ar4jc@virginia.edu>
---

diff --git a/src/arch/riscv/process.cc b/src/arch/riscv/process.cc
index 54afc854c..371a8e48a 100644
--- a/src/arch/riscv/process.cc
+++ b/src/arch/riscv/process.cc
@@ -61,7 +61,7 @@ RiscvProcess::RiscvProcess(ProcessParams * params,
     ObjectFile *objFile) : Process(params, objFile)
 {
     const Addr stack_base = 0x7FFFFFFFFFFFFFFFL;
-    const Addr max_stack_size = PageBytes * 64;
+    const Addr max_stack_size = 8 * 1024 * 1024;
     const Addr next_thread_stack_base = stack_base - max_stack_size;
     const Addr brk_point = roundUp(objFile->bssBase() + objFile->bssSize(),
             PageBytes);