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authorGabe Black <gblack@eecs.umich.edu>2009-06-09 23:41:45 -0700
committerGabe Black <gblack@eecs.umich.edu>2009-06-09 23:41:45 -0700
commitb394242240db749b6a85e3e269c858d9cbd1aa69 (patch)
treed4be9dce9be903aa4ee67841d95f93b0eec3ef1d /src
parentc913c64be22f0b91552fdebb16b1505591a32c64 (diff)
downloadgem5-b394242240db749b6a85e3e269c858d9cbd1aa69.tar.xz
ARM: Hook in the mmap2 system call. Make ArmLinuxProcess handle 5,6 syscall params.
Diffstat (limited to 'src')
-rw-r--r--src/arch/arm/linux/process.cc20
-rw-r--r--src/arch/arm/linux/process.hh3
2 files changed, 22 insertions, 1 deletions
diff --git a/src/arch/arm/linux/process.cc b/src/arch/arm/linux/process.cc
index a36d1fd8f..7158acfff 100644
--- a/src/arch/arm/linux/process.cc
+++ b/src/arch/arm/linux/process.cc
@@ -255,7 +255,7 @@ SyscallDesc ArmLinuxProcess::syscallDescs[] = {
/* 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 @@ ArmLinuxProcess::startup()
};
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 --git a/src/arch/arm/linux/process.hh b/src/arch/arm/linux/process.hh
index 835b94161..53b3781d2 100644
--- a/src/arch/arm/linux/process.hh
+++ b/src/arch/arm/linux/process.hh
@@ -44,6 +44,9 @@ class ArmLinuxProcess : public ArmLiveProcess
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;