changeset 9c0f2130478b in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=9c0f2130478b
description:
ARM: Hook in the mmap2 system call. Make ArmLinuxProcess handle 5,6
syscall params.
diffstat:
2 files changed, 22 insertions(+), 1 deletion(-)
src/arch/arm/linux/process.cc | 20 +++++++++++++++++++-
src/arch/arm/linux/process.hh | 3 +++
diffs (47 lines):
diff -r 33adfb8af4c0 -r 9c0f2130478b src/arch/arm/linux/process.cc
--- a/src/arch/arm/linux/process.cc Tue Jun 09 23:41:35 2009 -0700
+++ b/src/arch/arm/linux/process.cc Tue Jun 09 23:41:45 2009 -0700
@@ -255,7 +255,7 @@
/* 189 */ SyscallDesc("putpmsg", unimplementedFunc),
/* 190 */ SyscallDesc("vfork", unimplementedFunc),
/* 191 */ SyscallDesc("getrlimit", unimplementedFunc),
- /* 192 */ SyscallDesc("mmap2", unimplementedFunc),
+ /* 192 */ SyscallDesc("mmap2", mmapFunc<ArmLinux>),
/* 193 */ SyscallDesc("truncate64", unimplementedFunc),
/* 194 */ SyscallDesc("ftruncate64", unimplementedFunc),
/* 195 */ SyscallDesc("stat64", unimplementedFunc),
@@ -509,3 +509,21 @@
};
tc->getMemPort()->writeBlob(commPage + 0x0fe0, get_tls, sizeof(get_tls));
}
+
+ArmISA::IntReg
+ArmLinuxProcess::getSyscallArg(ThreadContext *tc, int i)
+{
+ // Linux apparently allows more parameter than the ABI says it should.
+ // This limit may need to be increased even further.
+ assert(i < 6);
+ return tc->readIntReg(ArgumentReg0 + i);
+}
+
+void
+ArmLinuxProcess::setSyscallArg(ThreadContext *tc, int i, ArmISA::IntReg val)
+{
+ // Linux apparently allows more parameter than the ABI says it should.
+ // This limit may need to be increased even further.
+ assert(i < 6);
+ tc->setIntReg(ArgumentReg0 + i, val);
+}
diff -r 33adfb8af4c0 -r 9c0f2130478b src/arch/arm/linux/process.hh
--- a/src/arch/arm/linux/process.hh Tue Jun 09 23:41:35 2009 -0700
+++ b/src/arch/arm/linux/process.hh Tue Jun 09 23:41:45 2009 -0700
@@ -44,6 +44,9 @@
void startup();
+ ArmISA::IntReg getSyscallArg(ThreadContext *tc, int i);
+ void setSyscallArg(ThreadContext *tc, int i, ArmISA::IntReg val);
+
/// The target system's hostname.
static const char *hostname;
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