From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 24 Jul 2020 10:54:24 +0000 (+0100)
Subject: read into a BytesIO to avoid "too many open files"
X-Git-Tag: semi_working_ecp5~583
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=75858e9e95e25f882fa130f50778f18fe88aa742;p=soc.git

read into a BytesIO to avoid "too many open files"
 see https://bugs.libre-soc.org/show_bug.cgi?id=438
---

diff --git a/src/soc/simulator/program.py b/src/soc/simulator/program.py
index fda0c959..d77f9d78 100644
--- a/src/soc/simulator/program.py
+++ b/src/soc/simulator/program.py
@@ -27,7 +27,10 @@ class Program:
             self.obj_fmt = "-le"
 
         if isinstance(instructions, str):  # filename
-            self.binfile = open(instructions, "rb")
+            # read instructions into a BytesIO to avoid "too many open files"
+            with open(instructions, "rb") as f:
+                b = f.read()
+            self.binfile = BytesIO(b, 'rb')
             self.assembly = ''  # noo disassemble number fiiive
             print("program", self.binfile)
         else: