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authorDam Sunwoo <dam.sunwoo@arm.com>2012-01-31 07:46:04 -0800
committerDam Sunwoo <dam.sunwoo@arm.com>2012-01-31 07:46:04 -0800
commit0ed3c84c7b05d7d3c9d5f0e3f1c05c20afef93b9 (patch)
tree9663b1af4da7ee4c063fa0047da7cbf7e8a2b9de /src/arch/arm/isa
parentaf6aaf258171027af8d3cf0ef86dddff501a3ccb (diff)
downloadgem5-0ed3c84c7b05d7d3c9d5f0e3f1c05c20afef93b9.tar.xz
util: implements "writefile" gem5 op to export file from guest to host filesystem
Usage: m5 writefile <filename> File will be created in the gem5 output folder with the identical filename. Implementation is largely based on the existing "readfile" functionality. Currently does not support exporting of folders.
Diffstat (limited to 'src/arch/arm/isa')
-rw-r--r--src/arch/arm/isa/formats/m5ops.isa1
-rw-r--r--src/arch/arm/isa/insts/m5ops.isa18
2 files changed, 19 insertions, 0 deletions
diff --git a/src/arch/arm/isa/formats/m5ops.isa b/src/arch/arm/isa/formats/m5ops.isa
index f532d828b..534d12cd9 100644
--- a/src/arch/arm/isa/formats/m5ops.isa
+++ b/src/arch/arm/isa/formats/m5ops.isa
@@ -64,6 +64,7 @@ def format M5ops() {{
case 0x42: return new Dumpresetstats(machInst);
case 0x43: return new M5checkpoint(machInst);
#if FULL_SYSTEM
+ case 0x4F: return new M5writefile(machInst);
case 0x50: return new M5readfile(machInst);
#endif
case 0x51: return new M5break(machInst);
diff --git a/src/arch/arm/isa/insts/m5ops.isa b/src/arch/arm/isa/insts/m5ops.isa
index 222ecc647..1a154459e 100644
--- a/src/arch/arm/isa/insts/m5ops.isa
+++ b/src/arch/arm/isa/insts/m5ops.isa
@@ -265,6 +265,24 @@ let {{
decoder_output += BasicConstructor.subst(m5readfileIop)
exec_output += PredOpExecute.subst(m5readfileIop)
+ m5writefileCode = '''
+#if FULL_SYSTEM
+ int n = 4;
+ uint64_t offset = getArgument(xc->tcBase(), n, sizeof(uint64_t), false);
+ n = 6;
+ Addr filenameAddr = getArgument(xc->tcBase(), n, sizeof(Addr), false);
+ R0 = PseudoInst::writefile(xc->tcBase(), R0, join32to64(R3,R2), offset,
+ filenameAddr);
+#endif
+ '''
+ m5writefileIop = InstObjParams("m5writefile", "M5writefile", "PredOp",
+ { "code": m5writefileCode,
+ "predicate_test": predicateTest },
+ ["IsNonSpeculative"])
+ header_output += BasicDeclare.subst(m5writefileIop)
+ decoder_output += BasicConstructor.subst(m5writefileIop)
+ exec_output += PredOpExecute.subst(m5writefileIop)
+
m5breakIop = InstObjParams("m5break", "M5break", "PredOp",
{ "code": "PseudoInst::debugbreak(xc->tcBase());",
"predicate_test": predicateTest },