8 files changed, 14 insertions, 13 deletions

diff --git a/src/arch/alpha/process.cc b/src/arch/alpha/process.cc
index eb1a2ee6d..54ef338f3 100644
--- a/src/arch/alpha/process.cc
+++ b/src/arch/alpha/process.cc
@@ -57,7 +57,7 @@ AlphaLiveProcess::AlphaLiveProcess(LiveProcessParams *params,
 
     // Set up region for mmaps.  Tru64 seems to start just above 0 and
     // grow up from there.
-    mmap_start = mmap_end = 0x10000;
+    mmap_end = 0x10000;
 
     // Set pointer for next thread stack.  Reserve 8M for main stack.
     next_thread_stack_base = stack_base - (8 * 1024 * 1024);
diff --git a/src/arch/alpha/process.hh b/src/arch/alpha/process.hh
index fcaa6539c..c41ece837 100644
--- a/src/arch/alpha/process.hh
+++ b/src/arch/alpha/process.hh
@@ -54,6 +54,10 @@ class AlphaLiveProcess : public LiveProcess
     void setSyscallArg(ThreadContext *tc, int i, AlphaISA::IntReg val) override;
     void setSyscallReturn(ThreadContext *tc,
                           SyscallReturn return_value) override;
+
+    // override default implementation in LiveProcess as the mmap
+    // region for Alpha platforms grows upward
+    virtual bool mmapGrowsDown() const override { return false; }
 };
 
 /* No architectural page table defined for this ISA */
diff --git a/src/arch/arm/process.cc b/src/arch/arm/process.cc
index ba56f0cdc..0c6f48fb5 100644
--- a/src/arch/arm/process.cc
+++ b/src/arch/arm/process.cc
@@ -77,7 +77,7 @@ ArmLiveProcess32::ArmLiveProcess32(LiveProcessParams *params,
     brk_point = roundUp(brk_point, PageBytes);
 
     // Set up region for mmaps. For now, start at bottom of kuseg space.
-    mmap_start = mmap_end = 0x40000000L;
+    mmap_end = 0x40000000L;
 }
 
 ArmLiveProcess64::ArmLiveProcess64(LiveProcessParams *params,
@@ -94,7 +94,7 @@ ArmLiveProcess64::ArmLiveProcess64(LiveProcessParams *params,
     brk_point = roundUp(brk_point, PageBytes);
 
     // Set up region for mmaps. For now, start at bottom of kuseg space.
-    mmap_start = mmap_end = 0x4000000000L;
+    mmap_end = 0x4000000000L;
 }
 
 void
diff --git a/src/arch/mips/process.cc b/src/arch/mips/process.cc
index 404c84da6..8754191fa 100644
--- a/src/arch/mips/process.cc
+++ b/src/arch/mips/process.cc
@@ -61,7 +61,7 @@ MipsLiveProcess::MipsLiveProcess(LiveProcessParams * params,
     brk_point = roundUp(brk_point, PageBytes);
 
     // Set up region for mmaps.  Start it 1GB above the top of the heap.
-    mmap_start = mmap_end = brk_point + 0x40000000L;
+    mmap_end = brk_point + 0x40000000L;
 }
 
 void
diff --git a/src/arch/power/process.cc b/src/arch/power/process.cc
index 3dc2c0d17..a770d8137 100644
--- a/src/arch/power/process.cc
+++ b/src/arch/power/process.cc
@@ -59,7 +59,7 @@ PowerLiveProcess::PowerLiveProcess(LiveProcessParams *params,
     brk_point = roundUp(brk_point, PageBytes);
 
     // Set up region for mmaps. For now, start at bottom of kuseg space.
-    mmap_start = mmap_end = 0x70000000L;
+    mmap_end = 0x70000000L;
 }
 
 void
diff --git a/src/arch/sparc/process.hh b/src/arch/sparc/process.hh
index 2eda40aac..e9d81367b 100644
--- a/src/arch/sparc/process.hh
+++ b/src/arch/sparc/process.hh
@@ -82,7 +82,7 @@ class Sparc32LiveProcess : public SparcLiveProcess
         stack_base = (Addr)0xf0000000ULL;
 
         // Set up region for mmaps.
-        mmap_start = mmap_end = 0x70000000;
+        mmap_end = 0x70000000;
     }
 
     void initState();
@@ -111,9 +111,8 @@ class Sparc64LiveProcess : public SparcLiveProcess
         // downward, less the hole for the kernel address space.
         stack_base = (Addr)0x80000000000ULL;
 
-        // Set up region for mmaps.  Tru64 seems to start just above 0 and
-        // grow up from there.
-        mmap_start = mmap_end = 0xfffff80000000000ULL;
+        // Set up region for mmaps.
+        mmap_end = 0xfffff80000000000ULL;
     }
 
     void initState();
diff --git a/src/arch/x86/linux/linux.hh b/src/arch/x86/linux/linux.hh
index ce395f17d..47eac12b8 100644
--- a/src/arch/x86/linux/linux.hh
+++ b/src/arch/x86/linux/linux.hh
@@ -290,8 +290,6 @@ class X86Linux32 : public Linux
        uint32_t freehigh;  /* Available high memory size */
        uint32_t mem_unit;  /* Memory unit size in bytes */
     } tgt_sysinfo;
-
-    static bool mmapGrowsDown() { return true; }
 };
 
 #endif
diff --git a/src/arch/x86/process.cc b/src/arch/x86/process.cc
index 13cbf6edd..f0b8370c0 100644
--- a/src/arch/x86/process.cc
+++ b/src/arch/x86/process.cc
@@ -114,7 +114,7 @@ X86_64LiveProcess::X86_64LiveProcess(LiveProcessParams *params,
 
     // Set up region for mmaps. This was determined empirically and may not
     // always be correct.
-    mmap_start = mmap_end = (Addr)0x2aaaaaaab000ULL;
+    mmap_end = (Addr)0x2aaaaaaab000ULL;
 }
 
 void
@@ -151,7 +151,7 @@ I386LiveProcess::I386LiveProcess(LiveProcessParams *params,
 
     // Set up region for mmaps. This was determined empirically and may not
     // always be correct.
-    mmap_start = mmap_end = (Addr)0xf7ffe000ULL;
+    mmap_end = (Addr)0xf7ffe000ULL;
 }
 
 SyscallDesc*