fix the size of long double

The odd one here is, of course i386, with its 80-bit extended floats
taking 12 bytes. Idem for __m68k__.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

1 files changed, 23 insertions, 2 deletions

diff --git a/target.c b/target.c
index 12cd219a..788ef3fa 100644
--- a/target.c
+++ b/target.c
@@ -38,9 +38,9 @@ int max_int_alignment = 4;
  */
 int bits_in_float = 32;
 int bits_in_double = 64;
-int bits_in_longdouble = 80;
+int bits_in_longdouble = 128;
 
-int max_fp_alignment = 8;
+int max_fp_alignment = 16;
 
 /*
  * Pointer data type
@@ -93,6 +93,27 @@ void init_target(void)
 		break;
 	}
 
+	switch (arch_mach) {
+	case MACH_ARM:
+	case MACH_MIPS32:
+	case MACH_S390X:
+	case MACH_SPARC32:
+		bits_in_longdouble = 64;
+		max_fp_alignment = 8;
+		break;
+	case MACH_X86_64:
+		if (arch_m64 == ARCH_LP64 || arch_m64 == ARCH_X32)
+			break;
+		/* fall through */
+	case MACH_I386:
+	case MACH_M68K:
+		bits_in_longdouble = 96;
+		max_fp_alignment = 4;
+		break;
+	default:
+		break;
+	}
+
 #if defined(__CYGWIN__)
 	wchar_ctype = &ushort_ctype;
 #endif