Fixes to compile under Cygwin.

src/kern/linux/linux.hh:
src/kern/solaris/solaris.hh:
    Rename BSD_HOST to the more specific NO_STAT64.
src/sim/byteswap.hh:
    Replace set of swap_byte functions with a single
    templated version.  Hope this fixes compiler issues
    with e.g. int32_t vs int disambiguation.
src/sim/syscall_emul.hh:
    Rename BSD_HOST to the more specific NO_STAT64.
    Set this for __CYGWIN__.

--HG--
extra : convert_revision : 86a63b4b60d2445a566321333381d79ba8ab63c4

1 files changed, 17 insertions, 19 deletions

diff --git a/src/sim/byteswap.hh b/src/sim/byteswap.hh
index a3138a25e..03bfad954 100644
--- a/src/sim/byteswap.hh
+++ b/src/sim/byteswap.hh
@@ -90,25 +90,23 @@ swap_byte16(uint16_t x)
 #endif
 }
 
-//This lets the compiler figure out how to call the swap_byte functions above
-//for different data types.
-static inline uint64_t swap_byte(uint64_t x) {return swap_byte64(x);}
-static inline int64_t swap_byte(int64_t x) {return swap_byte64((uint64_t)x);}
-static inline uint32_t swap_byte(uint32_t x) {return swap_byte32(x);}
-static inline int32_t swap_byte(int32_t x) {return swap_byte32((uint32_t)x);}
-//This is to prevent the following two functions from compiling on
-//64bit machines. It won't detect everything, so it should be changed.
-#ifndef __x86_64__
-static inline long swap_byte(long x) {return swap_byte32((long)x);}
-static inline unsigned long swap_byte(unsigned long x)
-                                { return swap_byte32((unsigned long)x);}
-#endif
-static inline uint16_t swap_byte(uint16_t x) {return swap_byte32(x);}
-static inline int16_t swap_byte(int16_t x) {return swap_byte16((uint16_t)x);}
-static inline uint8_t swap_byte(uint8_t x) {return x;}
-static inline int8_t swap_byte(int8_t x) {return x;}
-static inline double swap_byte(double x) {return swap_byte64((uint64_t)x);}
-static inline float swap_byte(float x) {return swap_byte32((uint32_t)x);}
+// This function lets the compiler figure out how to call the
+// swap_byte functions above for different data types.  Since the
+// sizeof() values are known at compiel time, it should inline to a
+// direct call to the right swap_byteNN() function.
+template <typename T>
+static inline T swap_byte(T x) {
+    if (sizeof(T) == 8)
+        return swap_byte64((uint64_t)x);
+    else if (sizeof(T) == 4)
+        return swap_byte32((uint32_t)x);
+    else if (sizeof(T) == 2)
+        return swap_byte16((uint16_t)x);
+    else if (sizeof(T) == 1)
+        return x;
+    else
+        panic("Can't byte-swap values larger than 64 bits");
+}
 
 //The conversion functions with fixed endianness on both ends don't need to
 //be in a namespace