*: remove vestiges of gcc's "bounded pointers" feature,

 it is dead (not supported by gcc) for years.
 (more of it remains in multiple copies of sigaction.c)

4 files changed, 28 insertions, 59 deletions

diff --git a/libc/misc/regex/regex_old.c b/libc/misc/regex/regex_old.c
index 76350fc4e..c7f187dc2 100644
--- a/libc/misc/regex/regex_old.c
+++ b/libc/misc/regex/regex_old.c
@@ -2091,33 +2091,12 @@ static reg_errcode_t byte_compile_range (unsigned int range_start,
 #   define MAX_BUF_SIZE (1L << 16)
 #   define REALLOC(p,s) realloc ((p), (s))
 #  endif
+# endif /* not DEFINED_ONCE */
 
 /* Extend the buffer by twice its current size via realloc and
    reset the pointers that pointed into the old block to point to the
    correct places in the new one.  If extending the buffer results in it
    being larger than MAX_BUF_SIZE, then flag memory exhausted.  */
-#  if __BOUNDED_POINTERS__
-#   define SET_HIGH_BOUND(P) (__ptrhigh (P) = __ptrlow (P) + bufp->allocated)
-#   define MOVE_BUFFER_POINTER(P) \
-  (__ptrlow (P) += incr, SET_HIGH_BOUND (P), __ptrvalue (P) += incr)
-#   define ELSE_EXTEND_BUFFER_HIGH_BOUND	\
-  else						\
-    {						\
-      SET_HIGH_BOUND (b);			\
-      SET_HIGH_BOUND (begalt);			\
-      if (fixup_alt_jump)			\
-	SET_HIGH_BOUND (fixup_alt_jump);	\
-      if (laststart)				\
-	SET_HIGH_BOUND (laststart);		\
-      if (pending_exact)			\
-	SET_HIGH_BOUND (pending_exact);		\
-    }
-#  else
-#   define MOVE_BUFFER_POINTER(P) (P) += incr
-#   define ELSE_EXTEND_BUFFER_HIGH_BOUND
-#  endif
-# endif /* not DEFINED_ONCE */
-
 # ifdef WCHAR
 #  define EXTEND_BUFFER()						\
   do {									\
@@ -2141,16 +2120,15 @@ static reg_errcode_t byte_compile_range (unsigned int range_start,
     if (old_buffer != COMPILED_BUFFER_VAR)				\
       {									\
 	int incr = COMPILED_BUFFER_VAR - old_buffer;			\
-	MOVE_BUFFER_POINTER (b);					\
-	MOVE_BUFFER_POINTER (begalt);					\
+	b += incr;							\
+	begalt += incr;							\
 	if (fixup_alt_jump)						\
-	  MOVE_BUFFER_POINTER (fixup_alt_jump);				\
+	  fixup_alt_jump += incr;					\
 	if (laststart)							\
-	  MOVE_BUFFER_POINTER (laststart);				\
+	  laststart += incr;						\
 	if (pending_exact)						\
-	  MOVE_BUFFER_POINTER (pending_exact);				\
+	  pending_exact += incr;					\
       }									\
-    ELSE_EXTEND_BUFFER_HIGH_BOUND					\
   } while (0)
 # else /* BYTE */
 #  define EXTEND_BUFFER()						\
@@ -2169,16 +2147,15 @@ static reg_errcode_t byte_compile_range (unsigned int range_start,
     if (old_buffer != COMPILED_BUFFER_VAR)				\
       {									\
 	int incr = COMPILED_BUFFER_VAR - old_buffer;			\
-	MOVE_BUFFER_POINTER (b);					\
-	MOVE_BUFFER_POINTER (begalt);					\
+	b += incr;							\
+	begalt += incr;							\
 	if (fixup_alt_jump)						\
-	  MOVE_BUFFER_POINTER (fixup_alt_jump);				\
+	  fixup_alt_jump += incr;					\
 	if (laststart)							\
-	  MOVE_BUFFER_POINTER (laststart);				\
+	  laststart += incr;						\
 	if (pending_exact)						\
-	  MOVE_BUFFER_POINTER (pending_exact);				\
+	  pending_exact += incr;					\
       }									\
-    ELSE_EXTEND_BUFFER_HIGH_BOUND					\
   } while (0)
 # endif /* WCHAR */
 
diff --git a/libc/string/generic/strcpy.c b/libc/string/generic/strcpy.c
index 99e077139..5f2758153 100644
--- a/libc/string/generic/strcpy.c
+++ b/libc/string/generic/strcpy.c
@@ -24,24 +24,15 @@
 
 /* Experimentally off - libc_hidden_proto(strcpy) */
 /* Copy SRC to DEST.  */
-char *strcpy (char *dest, const char *src)
+char *strcpy(char *dest, const char *src)
 {
-  reg_char c;
-  char *__unbounded s = (char *__unbounded) CHECK_BOUNDS_LOW (src);
-  const ptrdiff_t off = CHECK_BOUNDS_LOW (dest) - s - 1;
-  size_t n;
-
-  do
-    {
-      c = *s++;
-      s[off] = c;
-    }
-  while (c != '\0');
-
-  n = s - src;
-  (void) CHECK_BOUNDS_HIGH (src + n);
-  (void) CHECK_BOUNDS_HIGH (dest + n);
-
-  return dest;
+	char *dst = dest;
+
+	while ((*dst = *src) != '\0') {
+		src++;
+		dst++;
+	}
+
+	return dest;
 }
 libc_hidden_def(strcpy)
diff --git a/libc/sysdeps/linux/common/sigqueue.c b/libc/sysdeps/linux/common/sigqueue.c
index d610e8f6a..1b997dcd7 100644
--- a/libc/sysdeps/linux/common/sigqueue.c
+++ b/libc/sysdeps/linux/common/sigqueue.c
@@ -48,7 +48,7 @@ int sigqueue (pid_t pid, int sig, const union sigval val)
   info.si_uid = getuid ();
   info.si_value = val;
 
-  return __libc_rt_sigqueueinfo(pid, sig, __ptrvalue (&info));
+  return __libc_rt_sigqueueinfo(pid, sig, &info);
 }
 
 #endif
diff --git a/libc/sysdeps/linux/x86_64/brk.c b/libc/sysdeps/linux/x86_64/brk.c
index fc906abc1..b1ee640af 100644
--- a/libc/sysdeps/linux/x86_64/brk.c
+++ b/libc/sysdeps/linux/x86_64/brk.c
@@ -25,19 +25,20 @@
 void *__curbrk attribute_hidden = 0;
 
 /* libc_hidden_proto(brk) */
-int brk (void *addr)
+int brk(void *addr)
 {
-	void *__unbounded newbrk;
+	void *newbrk;
 
 	__asm__ ("syscall\n"
-	     : "=a" (newbrk)
-	     : "0" (__NR_brk), "D" (__ptrvalue (addr))
-	     : "r11","rcx","memory");
+		: "=a" (newbrk)
+		: "0" (__NR_brk), "D" (addr)
+		: "r11", "rcx"
+	);
 
 	__curbrk = newbrk;
 
 	if (newbrk < addr) {
-		__set_errno (ENOMEM);
+		__set_errno(ENOMEM);
 		return -1;
 	}