Fix ld --gc-section segfault with ARMv8-M entry function in absolute section

[deliverable/binutils-gdb.git] / include / longlong.h

diff --git a/include/longlong.h b/include/longlong.h
index 5f00e548a70907d70e93989f5ff02a3671bc633a..5cbc410fb035f7e89212c0661c41f82454469e35 100644 (file)
--- a/include/longlong.h
+++ b/include/longlong.h
@@ -1,5 +1,5 @@
 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
-   Copyright (C) 1991-2013 Free Software Foundation, Inc.
+   Copyright (C) 1991-2016 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.
 
@@ -122,7 +122,26 @@ extern const UQItype __clz_tab[256] attribute_hidden;
 #define __AND_CLOBBER_CC , "cc"
 #endif /* __GNUC__ < 2 */
 
+#if defined (__aarch64__)
+
+#if W_TYPE_SIZE == 32
+#define count_leading_zeros(COUNT, X)  ((COUNT) = __builtin_clz (X))
+#define count_trailing_zeros(COUNT, X)   ((COUNT) = __builtin_ctz (X))
+#define COUNT_LEADING_ZEROS_0 32
+#endif /* W_TYPE_SIZE == 32 */
+
+#if W_TYPE_SIZE == 64
+#define count_leading_zeros(COUNT, X)  ((COUNT) = __builtin_clzll (X))
+#define count_trailing_zeros(COUNT, X)   ((COUNT) = __builtin_ctzll (X))
+#define COUNT_LEADING_ZEROS_0 64
+#endif /* W_TYPE_SIZE == 64 */
+
+#endif /* __aarch64__ */
+
 #if defined (__alpha) && W_TYPE_SIZE == 64
+/* There is a bug in g++ before version 5 that
+   errors on __builtin_alpha_umulh.  */
+#if !defined(__cplusplus) || __GNUC__ >= 5
 #define umul_ppmm(ph, pl, m0, m1) \
   do {                                                                 \
     UDItype __m0 = (m0), __m1 = (m1);                                  \
@@ -130,6 +149,7 @@ extern const UQItype __clz_tab[256] attribute_hidden;
     (pl) = __m0 * __m1;                                                        \
   } while (0)
 #define UMUL_TIME 46
+#endif /* !c++ */
 #ifndef LONGLONG_STANDALONE
 #define udiv_qrnnd(q, r, n1, n0, d) \
   do { UDItype __r;                                                    \
@@ -467,7 +487,7 @@ extern UDItype __umulsidi3 (USItype, USItype);
 #define UDIV_TIME 40
 #endif /* 80x86 */
 
-#if (defined (__x86_64__) || defined (__i386__)) && W_TYPE_SIZE == 64
+#if defined (__x86_64__) && W_TYPE_SIZE == 64
 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
   __asm__ ("add{q} {%5,%1|%1,%5}\n\tadc{q} {%3,%0|%0,%3}"              \
           : "=r" ((UDItype) (sh)),                                     \
@@ -832,7 +852,7 @@ extern UDItype __umulsidi3 (USItype, USItype);
 #define UMUL_TIME 10
 #define UDIV_TIME 100
 
-#if (__mips == 32 || __mips == 64) && ! __mips16
+#if (__mips == 32 || __mips == 64) && ! defined (__mips16)
 #define count_leading_zeros(COUNT,X)   ((COUNT) = __builtin_clz (X))
 #define COUNT_LEADING_ZEROS_0 32
 #endif
@@ -1066,7 +1086,7 @@ extern UDItype __umulsidi3 (USItype, USItype);
   } while (0)
 #endif
 
-#if defined(__sh__) && !__SHMEDIA__ && W_TYPE_SIZE == 32
+#if defined(__sh__) && (!defined (__SHMEDIA__) || !__SHMEDIA__) && W_TYPE_SIZE == 32
 #ifndef __sh1__
 #define umul_ppmm(w1, w0, u, v) \
   __asm__ (                                                            \
@@ -1082,6 +1102,33 @@ extern UDItype __umulsidi3 (USItype, USItype);
 /* This is the same algorithm as __udiv_qrnnd_c.  */
 #define UDIV_NEEDS_NORMALIZATION 1
 
+#ifdef __FDPIC__
+/* FDPIC needs a special version of the asm fragment to extract the
+   code address from the function descriptor. __udiv_qrnnd_16 is
+   assumed to be local and not to use the GOT, so loading r12 is
+   not needed. */
+#define udiv_qrnnd(q, r, n1, n0, d) \
+  do {                                                                 \
+    extern UWtype __udiv_qrnnd_16 (UWtype, UWtype)                     \
+                       __attribute__ ((visibility ("hidden")));        \
+    /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
+    __asm__ (                                                          \
+       "mov%M4 %4,r5\n"                                                \
+"      swap.w  %3,r4\n"                                                \
+"      swap.w  r5,r6\n"                                                \
+"      mov.l   @%5,r2\n"                                               \
+"      jsr     @r2\n"                                                  \
+"      shll16  r6\n"                                                   \
+"      swap.w  r4,r4\n"                                                \
+"      mov.l   @%5,r2\n"                                               \
+"      jsr     @r2\n"                                                  \
+"      swap.w  r1,%0\n"                                                \
+"      or      r1,%0"                                                  \
+       : "=r" (q), "=&z" (r)                                           \
+       : "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16)          \
+       : "r1", "r2", "r4", "r5", "r6", "pr", "t");                     \
+  } while (0)
+#else
 #define udiv_qrnnd(q, r, n1, n0, d) \
   do {                                                                 \
     extern UWtype __udiv_qrnnd_16 (UWtype, UWtype)                     \
@@ -1101,6 +1148,7 @@ extern UDItype __umulsidi3 (USItype, USItype);
        : "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16)          \
        : "r1", "r2", "r4", "r5", "r6", "pr", "t");                     \
   } while (0)
+#endif /* __FDPIC__  */
 
 #define UDIV_TIME 80
 
@@ -1111,7 +1159,7 @@ extern UDItype __umulsidi3 (USItype, USItype);
 
 #endif /* __sh__ */
 
-#if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
+#if defined (__SH5__) && defined (__SHMEDIA__) && __SHMEDIA__ && W_TYPE_SIZE == 32
 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
 #define count_leading_zeros(count, x) \
   do                                                                   \
@@ -1671,7 +1719,8 @@ extern UHItype __stormy16_count_leading_zeros (UHItype);
 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
 #define udiv_qrnnd(q, r, nh, nl, d) \
   do {                                                                 \
-    USItype __r;                                                       \
+    extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype);    \
+    UWtype __r;                                                                \
     (q) = __udiv_w_sdiv (&__r, nh, nl, d);                             \
     (r) = __r;                                                         \
   } while (0)