sycalls: implement mremap() and add DATA flag for getrlimit(). mremap has been tested on Alpha, compiles for the rest but not tested. I don't see why it wouldn't work though.

8 files changed, 27 insertions, 5 deletions

diff --git a/src/arch/alpha/linux/process.cc b/src/arch/alpha/linux/process.cc
index 6684051af..605e40627 100644
--- a/src/arch/alpha/linux/process.cc
+++ b/src/arch/alpha/linux/process.cc
@@ -463,7 +463,7 @@ SyscallDesc AlphaLinuxProcess::syscallDescs[] = {
     /* 338 */ SyscallDesc("afs_syscall", unimplementedFunc),
     /* 339 */ SyscallDesc("uname", unameFunc),
     /* 340 */ SyscallDesc("nanosleep", unimplementedFunc),
-    /* 341 */ SyscallDesc("mremap", unimplementedFunc),
+    /* 341 */ SyscallDesc("mremap", mremapFunc<AlphaLinux>),
     /* 342 */ SyscallDesc("nfsservctl", unimplementedFunc),
     /* 343 */ SyscallDesc("setresuid", unimplementedFunc),
     /* 344 */ SyscallDesc("getresuid", unimplementedFunc),
diff --git a/src/arch/alpha/pagetable.hh b/src/arch/alpha/pagetable.hh
index 6cf11be56..59df93bef 100644
--- a/src/arch/alpha/pagetable.hh
+++ b/src/arch/alpha/pagetable.hh
@@ -123,6 +123,13 @@ struct TlbEntry
     TlbEntry()
     {}
 
+    void
+    updateVaddr(Addr new_vaddr)
+    {
+        VAddr vaddr(new_vaddr);
+        tag = vaddr.vpn();
+    }
+
     Addr
     pageStart()
     {
diff --git a/src/arch/mips/linux/process.cc b/src/arch/mips/linux/process.cc
index ce09e1628..9d9d33325 100644
--- a/src/arch/mips/linux/process.cc
+++ b/src/arch/mips/linux/process.cc
@@ -288,7 +288,7 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
     /* 164 */ SyscallDesc("sched_get_priority_min", unimplementedFunc),
     /* 165 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc),
     /* 166 */ SyscallDesc("nanosleep", unimplementedFunc),
-    /* 167 */ SyscallDesc("mremap", unimplementedFunc),
+    /* 167 */ SyscallDesc("mremap", mremapFunc<MipsLinux>),
     /* 168 */ SyscallDesc("accept", unimplementedFunc),
     /* 169 */ SyscallDesc("bind", unimplementedFunc),
     /* 170 */ SyscallDesc("connect", unimplementedFunc),
diff --git a/src/arch/mips/tlb.hh b/src/arch/mips/tlb.hh
index feb2509c5..4a8fc32ac 100644
--- a/src/arch/mips/tlb.hh
+++ b/src/arch/mips/tlb.hh
@@ -68,6 +68,9 @@ struct TlbEntry
         return _pageStart;
     }
 
+    void
+    updateVaddr(Addr new_vaddr) {}
+    
     void serialize(std::ostream &os)
     {
         SERIALIZE_SCALAR(_pageStart);
diff --git a/src/arch/sparc/linux/syscalls.cc b/src/arch/sparc/linux/syscalls.cc
index 2845f7bec..3e8c603cd 100644
--- a/src/arch/sparc/linux/syscalls.cc
+++ b/src/arch/sparc/linux/syscalls.cc
@@ -339,7 +339,7 @@ SyscallDesc SparcLinuxProcess::syscall32Descs[] = {
     /* 247 */ SyscallDesc("sched_get_priority_min", unimplementedFunc), //32 bit
     /* 248 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc), //32 bit
     /* 249 */ SyscallDesc("nanosleep", unimplementedFunc),
-    /* 250 */ SyscallDesc("mremap", unimplementedFunc), //32 bit
+    /* 250 */ SyscallDesc("mremap", mremapFunc<Sparc32Linux>), //32 bit
     /* 251 */ SyscallDesc("_sysctl", unimplementedFunc), //32 bit
     /* 252 */ SyscallDesc("getsid", unimplementedFunc), //32 bit
     /* 253 */ SyscallDesc("fdatasync", unimplementedFunc),
@@ -642,7 +642,7 @@ SyscallDesc SparcLinuxProcess::syscallDescs[] = {
     /* 247 */ SyscallDesc("sched_get_priority_min", unimplementedFunc),
     /* 248 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc),
     /* 249 */ SyscallDesc("nanosleep", unimplementedFunc),
-    /* 250 */ SyscallDesc("mremap", unimplementedFunc),
+    /* 250 */ SyscallDesc("mremap", mremapFunc<SparcLinux>),
     /* 251 */ SyscallDesc("_sysctl", unimplementedFunc),
     /* 252 */ SyscallDesc("getsid", unimplementedFunc),
     /* 253 */ SyscallDesc("fdatasync", unimplementedFunc),
diff --git a/src/arch/sparc/pagetable.hh b/src/arch/sparc/pagetable.hh
index ee4ca0c2c..cbdabe4c3 100644
--- a/src/arch/sparc/pagetable.hh
+++ b/src/arch/sparc/pagetable.hh
@@ -266,6 +266,12 @@ struct TlbEntry
         return pte.paddr();
     }
 
+    void
+    updateVaddr(Addr new_vaddr)
+    {
+        range.va = new_vaddr;
+    }
+
     void serialize(std::ostream &os);
     void unserialize(Checkpoint *cp, const std::string &section);
 };
diff --git a/src/arch/x86/linux/syscalls.cc b/src/arch/x86/linux/syscalls.cc
index 754fb2eaf..ca35a5dd6 100644
--- a/src/arch/x86/linux/syscalls.cc
+++ b/src/arch/x86/linux/syscalls.cc
@@ -148,7 +148,7 @@ SyscallDesc X86LinuxProcess::syscallDescs[] = {
     /*  22 */ SyscallDesc("pipe", unimplementedFunc),
     /*  23 */ SyscallDesc("select", unimplementedFunc),
     /*  24 */ SyscallDesc("sched_yield", unimplementedFunc),
-    /*  25 */ SyscallDesc("mremap", unimplementedFunc),
+    /*  25 */ SyscallDesc("mremap", mremapFunc<X86Linux64>),
     /*  26 */ SyscallDesc("msync", unimplementedFunc),
     /*  27 */ SyscallDesc("mincore", unimplementedFunc),
     /*  28 */ SyscallDesc("madvise", unimplementedFunc),
diff --git a/src/arch/x86/pagetable.hh b/src/arch/x86/pagetable.hh
index e42693c03..1a7a945e4 100644
--- a/src/arch/x86/pagetable.hh
+++ b/src/arch/x86/pagetable.hh
@@ -113,6 +113,12 @@ namespace X86ISA
         TlbEntry(Addr asn, Addr _vaddr, Addr _paddr);
         TlbEntry() {}
 
+        void
+        updateVaddr(Addr new_vaddr)
+        {
+            vaddr = new_vaddr;
+        }
+
         Addr pageStart()
         {
             return paddr;