164218c65c
git-svn-id: svn://svn.openwrt.org/openwrt/packages@21025 3c298f89-4303-0410-b956-a3cf2f4a3e73
71 lines
2.8 KiB
Diff
71 lines
2.8 KiB
Diff
The MIPS port for GCC-4.4 no longer recognizes the h asm constraint.
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Patch from: https://forum.openwrt.org/viewtopic.php?id=20520
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--- a/mpi/longlong.h
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+++ b/mpi/longlong.h
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@@ -710,18 +710,35 @@ extern USItype __udiv_qrnnd ();
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#endif /* __m88110__ */
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#endif /* __m88000__ */
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+/* Test for gcc >= maj.min, as per __GNUC_PREREQ in glibc */
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+#if defined (__GNUC__) && defined (__GNUC_MINOR__)
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+#define __GNUC_PREREQ(maj, min) \
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+ ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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+#else
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+#define __GNUC_PREREQ(maj, min) 0
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+#endif
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+
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/***************************************
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************** MIPS *****************
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***************************************/
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#if defined (__mips__) && W_TYPE_SIZE == 32
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-#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
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+#if __GNUC_PREREQ (4,4)
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+#define umul_ppmm(w1, w0, u, v) \
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+ do { \
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+ UDItype __ll = (UDItype)(u) * (v); \
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+ w1 = __ll >> 32; \
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+ w0 = __ll; \
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+ } while (0)
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+#endif
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+#if !defined (umul_ppmm) && __GNUC_PREREQ (2,7)
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#define umul_ppmm(w1, w0, u, v) \
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__asm__ ("multu %2,%3" \
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: "=l" ((USItype)(w0)), \
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"=h" ((USItype)(w1)) \
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: "d" ((USItype)(u)), \
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"d" ((USItype)(v)))
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-#else
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+#endif
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+#if !defined (umul_ppmm)
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#define umul_ppmm(w1, w0, u, v) \
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__asm__ ("multu %2,%3 \n" \
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"mflo %0 \n" \
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@@ -739,14 +756,24 @@ extern USItype __udiv_qrnnd ();
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************** MIPS/64 **************
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***************************************/
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#if (defined (__mips) && __mips >= 3) && W_TYPE_SIZE == 64
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-#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
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+#if __GNUC_PREREQ (4,4)
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+#define umul_ppmm(w1, w0, u, v) \
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+ do { \
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+ typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \
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+ __ll_UTItype __ll = (__ll_UTItype)(u) * (v); \
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+ w1 = __ll >> 64; \
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+ w0 = __ll; \
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+ } while (0)
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+#endif
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+#if !defined (umul_ppmm) && __GNUC_PREREQ (2,7)
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#define umul_ppmm(w1, w0, u, v) \
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__asm__ ("dmultu %2,%3" \
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: "=l" ((UDItype)(w0)), \
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"=h" ((UDItype)(w1)) \
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: "d" ((UDItype)(u)), \
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"d" ((UDItype)(v)))
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-#else
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+#endif
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+#if !defined (umul_ppmm)
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#define umul_ppmm(w1, w0, u, v) \
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__asm__ ("dmultu %2,%3 \n" \
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"mflo %0 \n" \
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