Hi,
This patch simplifies TRY_EMPTY_VM_SPACE for Linux hosts by checking
pointer size when appropriate. Tested on Linux/x86-64, Linux/ia32
and Linux/x32. OK for trunk?
Thanks.
H.J.
---
2012-04-11 H.J. Lu <hongjiu...@intel.com>
* config/host-linux.c (TRY_EMPTY_VM_SPACE): Check pointer size
for alpha, arm, i386 and x86-64.
diff --git a/gcc/config/host-linux.c b/gcc/config/host-linux.c
index b535758..93c513e 100644
--- a/gcc/config/host-linux.c
+++ b/gcc/config/host-linux.c
@@ -64,16 +64,12 @@
/* For various ports, try to guess a fixed spot in the vm space
that's probably free. */
-#if defined(__alpha)
-# define TRY_EMPTY_VM_SPACE 0x10000000000
+#if defined(__alpha) || defined(__ARM_EABI__) || defined(__i386) \
+ || defined(__x86_64)
+# define TRY_EMPTY_VM_SPACE \
+ (sizeof (void *) == 8 ? 0x1000000000 : 0x60000000)
#elif defined(__ia64)
# define TRY_EMPTY_VM_SPACE 0x2000000100000000
-#elif defined(__x86_64) && defined(__LP64__)
-# define TRY_EMPTY_VM_SPACE 0x1000000000
-#elif defined(__x86_64)
-# define TRY_EMPTY_VM_SPACE 0x60000000
-#elif defined(__i386)
-# define TRY_EMPTY_VM_SPACE 0x60000000
#elif defined(__powerpc__)
# define TRY_EMPTY_VM_SPACE 0x60000000
#elif defined(__s390x__)
@@ -86,8 +82,6 @@
# define TRY_EMPTY_VM_SPACE 0x60000000
#elif defined(__mc68000__)
# define TRY_EMPTY_VM_SPACE 0x40000000
-#elif defined(__ARM_EABI__)
-# define TRY_EMPTY_VM_SPACE 0x60000000
#elif defined(__mips__) && defined(__LP64__)
# define TRY_EMPTY_VM_SPACE 0x8000000000
#elif defined(__mips__)
