(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 5 insertions, 8 deletions

diff --git a/manual/memory.texi b/manual/memory.texi
index 91b9d84eb2..91abb7f5d4 100644
--- a/manual/memory.texi
+++ b/manual/memory.texi
@@ -948,7 +948,7 @@ program.
 #include <malloc.h>
 
 /* Prototypes for our hooks.  */
-static void my_init_hook (void);
+static void *my_init_hook (void);
 static void *my_malloc_hook (size_t, const void *);
 static void my_free_hook (void*, const void *);
 
@@ -984,7 +984,7 @@ my_malloc_hook (size_t size, const void *caller)
   return result;
 @}
 
-static void
+static void *
 my_free_hook (void *ptr, const void *caller)
 @{
   /* Restore all old hooks */
@@ -1968,8 +1968,7 @@ obstack_next_free (@var{obstack-ptr}) - obstack_base (@var{obstack-ptr})
 
 Each obstack has an @dfn{alignment boundary}; each object allocated in
 the obstack automatically starts on an address that is a multiple of the
-specified boundary.  By default, this boundary is aligned so that
-the object can hold any type of data.
+specified boundary.  By default, this boundary is 4 bytes.
 
 To access an obstack's alignment boundary, use the macro
 @code{obstack_alignment_mask}, whose function prototype looks like
@@ -1981,9 +1980,7 @@ this:
 The value is a bit mask; a bit that is 1 indicates that the corresponding
 bit in the address of an object should be 0.  The mask value should be one
 less than a power of 2; the effect is that all object addresses are
-multiples of that power of 2.  The default value of the mask is a value
-that allows aligned objects to hold any type of data: for example, if
-its value is 3, any type of data can be stored at locations whose
+multiples of that power of 2.  The default value of the mask is 3, so that
 addresses are multiples of 4.  A mask value of 0 means an object can start
 on any multiple of 1 (that is, no alignment is required).
 
@@ -2387,7 +2384,7 @@ exceed the process' data storage limit.
 
 @comment unistd.h
 @comment BSD
-@deftypefun void *sbrk (ptrdiff_t @var{delta})
+@deftypefun int sbrk (ptrdiff_t @var{delta})
 This function is the same as @code{brk} except that you specify the new
 end of the data segment as an offset @var{delta} from the current end
 and on success the return value is the address of the resulting end of