Merge branch 'git-for-windows:main' into main

git-for-windows · Mar 10, 2022 · 34ecb7c · 34ecb7c
2 parents d3507f2 + 9f15ca2
commit 34ecb7c
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Showing 26 changed files with 1,583 additions and 977 deletions.
diff --git a/newlib/libc/posix/posix_spawn.c b/newlib/libc/posix/posix_spawn.c
@@ -146,6 +146,17 @@ typedef struct __posix_spawn_file_actions_entry {
  * Spawn routines
  */
 
+#if defined (__CYGWIN__) && defined (__i386__)
+extern int getgid32 (void);
+extern int getuid32 (void);
+extern int setegid32 (gid_t egid);
+extern int seteuid32 (uid_t euid);
+#define setegid setegid32
+#define seteuid seteuid32
+#define getgid getgid32
+#define getuid getuid32
+#endif
+
 static int
 process_spawnattr(const posix_spawnattr_t sa)
 {

diff --git a/newlib/libm/common/frexpl.c b/newlib/libm/common/frexpl.c
@@ -33,16 +33,42 @@ POSSIBILITY OF SUCH DAMAGE.
 #include "local.h"
 
 /* On platforms where long double is as wide as double.  */
-#if defined(_LDBL_EQ_DBL) || (LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024)
+#if defined(_LDBL_EQ_DBL)
 long double
 frexpl (long double x, int *eptr)
 {
   return frexp(x, eptr);
 }
-#endif
+#else  /* !_DBL_EQ_DBL */
+# if (LDBL_MANT_DIG == 53) /* 64-bit long double */
+static const double scale = 0x1p54;
+
+union ldbl {
+  long double x;
+  struct {
+#  ifdef __IEEE_LITTLE_ENDIAN /* for Intel CPU */
+    __uint32_t fracl;
+    __uint32_t frach:20;
+    __uint32_t exp:11;
+    __uint32_t sign:1;
+#  endif
+#  ifdef __IEEE_BIG_ENDIAN
+    __uint32_t sign:1;
+    __uint32_t exp:11;
+    __uint32_t frach:20;
+#   ifndef ___IEEE_BYTES_LITTLE_ENDIAN
+#   else /* ARMEL without __VFP_FP__ */
+    __uint32_t frach:20;
+    __uint32_t exp:11;
+    __uint32_t sign:1;
+#   endif
+    __uint32_t fracl;
+#  endif
+  } u32;
+};
+# elif (LDBL_MANT_DIG == 64) /* 80-bit long double */
+static const double scale = 0x1p65;
 
-#if (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
-# if (LDBL_MANT_DIG == 64) /* 80-bit long double */
 union ldbl {
   long double x;
   struct {
@@ -68,7 +94,9 @@ union ldbl {
 #  endif
   } u32;
 };
-# else /* LDBL_MANT_DIG == 113, 128-bit long double */
+# elif (LDBL_MANT_DIG == 113) /* 128-bit long double */
+static const double scale = 0x1p114;
+
 union ldbl {
   long double x;
   struct {
@@ -96,9 +124,11 @@ union ldbl {
 #  endif
   } u32;
 };
+# else
+#  error Unsupported long double format.
 # endif
 
-static const double two114 = 0x1p114;
+static const int scale_exp = LDBL_MANT_DIG + 1;
 
 long double
 frexpl (long double x, int *eptr)
@@ -107,16 +137,16 @@ frexpl (long double x, int *eptr)
   u.x = x;
   int e = u.u32.exp;
   *eptr = 0;
-  if (e == 0x7fff || x == 0)
+  if (e == (LDBL_MAX_EXP*2 - 1) || x == 0)
     return x; /* inf,nan,0 */
   if (e == 0) /* subnormal */
     {
-      u.x *= two114;
+      u.x *= scale;
       e = u.u32.exp;
-      *eptr -= 114;
+      *eptr -= scale_exp;
     }
-  *eptr += e - 16382;
-  u.u32.exp = 0x3ffe; /* 0 */
+  *eptr += e - (LDBL_MAX_EXP - 2);
+  u.u32.exp = LDBL_MAX_EXP - 2; /* -1 */
   return u.x;
 }
-#endif /* End of 80-bit or 128-bit long double */
+#endif /* !_LDBL_EQ_DBL */
diff --git a/winsup/cygwin/Makefile.am b/winsup/cygwin/Makefile.am
@@ -230,6 +230,7 @@ DLL_FILES= \
 	fhandler_console.cc \
 	fhandler_cygdrive.cc \
 	fhandler_dev.cc \
+	fhandler_dev_fd.cc \
 	fhandler_disk_file.cc \
 	fhandler_dsp.cc \
 	fhandler_fifo.cc \
@@ -624,7 +625,8 @@ $(LDSCRIPT): $(LDSCRIPT).in
 	$(CC) -E - -P < $^ -o $@
 
 # msys-2.0 dll
-$(TEST_DLL_NAME): $(LDSCRIPT) dllfixdbg libdll.a $(VERSION_OFILES) $(LIBSERVER)
+$(TEST_DLL_NAME): $(LDSCRIPT) dllfixdbg libdll.a $(VERSION_OFILES) $(LIBSERVER)\
+		  $(newlib_build)/libm/libm.a $(newlib_build)/libc/libc.a
 	$(CXX) $(CXXFLAGS) \
 	-mno-use-libstdc-wrappers \
 	-Wl,--gc-sections -nostdlib -Wl,-T$(LDSCRIPT) -static \