add support for cirrus maverick fpu using patch for glibc http://yann.poupet.free.fr/ep93xx/

3 files changed, 46 insertions, 1 deletions

diff --git a/libc/sysdeps/linux/arm/bits/endian.h b/libc/sysdeps/linux/arm/bits/endian.h
index 4f60bd7d2..27946cdee 100644
--- a/libc/sysdeps/linux/arm/bits/endian.h
+++ b/libc/sysdeps/linux/arm/bits/endian.h
@@ -12,7 +12,7 @@
 /* FPA floating point units are always big-endian, irrespective of the
    CPU endianness.  VFP floating point units use the same endianness
    as the rest of the system.  */
-#ifdef __VFP_FP__
+#if defined __VFP_FP__ || defined __MAVERICK__
 # define __FLOAT_WORD_ORDER __BYTE_ORDER 
 #else
 # define __FLOAT_WORD_ORDER __BIG_ENDIAN
diff --git a/libc/sysdeps/linux/arm/bits/fenv.h b/libc/sysdeps/linux/arm/bits/fenv.h
index 7bd242385..3764d7749 100644
--- a/libc/sysdeps/linux/arm/bits/fenv.h
+++ b/libc/sysdeps/linux/arm/bits/fenv.h
@@ -20,6 +20,45 @@
 # error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
 #endif
 
+#ifdef __MAVERICK__
+
+/* Define bits representing exceptions in the FPU status word.  */
+enum
+  {
+    FE_INVALID = 1,
+#define FE_INVALID FE_INVALID
+    FE_OVERFLOW = 4,
+#define FE_OVERFLOW FE_OVERFLOW
+    FE_UNDERFLOW = 8,
+#define FE_UNDERFLOW FE_UNDERFLOW
+    FE_INEXACT = 16,
+#define FE_INEXACT FE_INEXACT
+  };
+
+/* Amount to shift by to convert an exception to a mask bit.  */
+#define FE_EXCEPT_SHIFT    5
+
+/* All supported exceptions.  */
+#define FE_ALL_EXCEPT  \
+	(FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
+
+/* IEEE rounding modes.  */
+enum
+  {
+    FE_TONEAREST = 0,
+#define FE_TONEAREST    FE_TONEAREST
+    FE_TOWARDZERO = 0x400,
+#define FE_TOWARDZERO   FE_TOWARDZERO
+    FE_DOWNWARD = 0x800,
+#define FE_DOWNWARD     FE_DOWNWARD
+    FE_UPWARD = 0xc00,
+#define FE_UPWARD       FE_UPWARD
+  };
+
+#define FE_ROUND_MASK (FE_UPWARD)
+
+#else /* !__MAVERICK__ */
+
 /* Define bits representing exceptions in the FPU status word.  */
 enum
   {
@@ -44,6 +83,8 @@ enum
    modes exist, but you have to encode them in the actual instruction.  */
 #define FE_TONEAREST	0
 
+#endif /* __MAVERICK__ */
+
 /* Type representing exception flags. */
 typedef unsigned long int fexcept_t;
 
diff --git a/libc/sysdeps/linux/arm/bits/setjmp.h b/libc/sysdeps/linux/arm/bits/setjmp.h
index dd8524303..e1d51468f 100644
--- a/libc/sysdeps/linux/arm/bits/setjmp.h
+++ b/libc/sysdeps/linux/arm/bits/setjmp.h
@@ -25,8 +25,12 @@
 #ifndef _ASM
 /* Jump buffer contains v1-v6, sl, fp, sp and pc.  Other registers are not
    saved.  */
+#ifdef __MAVERICK__
+typedef int __jmp_buf[34];
+#else
 typedef int __jmp_buf[22];
 #endif
+#endif
 
 #define __JMP_BUF_SP		20