Optimize ODR enum streaming

[thirdparty/gcc.git] / libiberty / xmalloc.c

diff --git a/libiberty/xmalloc.c b/libiberty/xmalloc.c
index 3ea2d4afc06e3edf4546cc96f677cac0744f3c9f..96d51b57780e6197a4243ae8d2cc633e55f00009 100644 (file)
--- a/libiberty/xmalloc.c
+++ b/libiberty/xmalloc.c
@@ -1,5 +1,5 @@
 /* memory allocation routines with error checking.
-   Copyright 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+   Copyright (C) 1989-2020 Free Software Foundation, Inc.
    
 This file is part of the libiberty library.
 Libiberty is free software; you can redistribute it and/or
@@ -14,34 +14,85 @@ Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public
 License along with libiberty; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+/*
+
+@deftypefn Replacement void* xmalloc (size_t)
+
+Allocate memory without fail.  If @code{malloc} fails, this will print
+a message to @code{stderr} (using the name set by
+@code{xmalloc_set_program_name},
+if any) and then call @code{xexit}.  Note that it is therefore safe for
+a program to contain @code{#define malloc xmalloc} in its source.
+
+@end deftypefn
+
+@deftypefn Replacement void* xrealloc (void *@var{ptr}, size_t @var{size})
+Reallocate memory without fail.  This routine functions like @code{realloc},
+but will behave the same as @code{xmalloc} if memory cannot be found.
+
+@end deftypefn
+
+@deftypefn Replacement void* xcalloc (size_t @var{nelem}, size_t @var{elsize})
+
+Allocate memory without fail, and set it to zero.  This routine functions
+like @code{calloc}, but will behave the same as @code{xmalloc} if memory
+cannot be found.
+
+@end deftypefn
+
+@deftypefn Replacement void xmalloc_set_program_name (const char *@var{name})
+
+You can use this to set the name of the program used by
+@code{xmalloc_failed} when printing a failure message.
+
+@end deftypefn
+
+@deftypefn Replacement void xmalloc_failed (size_t)
+
+This function is not meant to be called by client code, and is listed
+here for completeness only.  If any of the allocation routines fail, this
+function will be called to print an error message and terminate execution.
+
+@end deftypefn
+
+*/
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 #include "ansidecl.h"
 #include "libiberty.h"
+#include "environ.h"
 
 #include <stdio.h>
 
-#ifdef __STDC__
 #include <stddef.h>
-#else
-#define size_t unsigned long
-#define ptrdiff_t long
-#endif
 
 #if VMS
 #include <stdlib.h>
 #include <unixlib.h>
 #else
 /* For systems with larger pointers than ints, these must be declared.  */
-PTR malloc PARAMS ((size_t));
-PTR realloc PARAMS ((PTR, size_t));
-PTR calloc PARAMS ((size_t, size_t));
-PTR sbrk PARAMS ((ptrdiff_t));
-#endif
+#  if HAVE_STDLIB_H && HAVE_UNISTD_H && HAVE_DECL_MALLOC \
+      && HAVE_DECL_REALLOC && HAVE_DECL_CALLOC && HAVE_DECL_SBRK
+#    include <stdlib.h>
+#    include <unistd.h>
+#  else
+#    ifdef __cplusplus
+extern "C" {
+#    endif /* __cplusplus */
+void *malloc (size_t);
+void *realloc (void *, size_t);
+void *calloc (size_t, size_t);
+void *sbrk (ptrdiff_t);
+#    ifdef __cplusplus
+}
+#    endif /* __cplusplus */
+#  endif /* HAVE_STDLIB_H ...  */
+#endif /* VMS */
 
 /* The program name if set.  */
 static const char *name = "";
@@ -53,8 +104,7 @@ static char *first_break = NULL;
 #endif /* HAVE_SBRK */
 
 void
-xmalloc_set_program_name (s)
-     const char *s;
+xmalloc_set_program_name (const char *s)
 {
   name = s;
 #ifdef HAVE_SBRK
@@ -65,11 +115,9 @@ xmalloc_set_program_name (s)
 }
 
 void
-xmalloc_failed (size)
-     size_t size;
+xmalloc_failed (size_t size)
 {
 #ifdef HAVE_SBRK
-  extern char **environ;
   size_t allocated;
 
   if (first_break != NULL)
@@ -77,12 +125,12 @@ xmalloc_failed (size)
   else
     allocated = (char *) sbrk (0) - (char *) &environ;
   fprintf (stderr,
-          "\n%s%sCannot allocate %lu bytes after allocating %lu bytes\n",
+          "\n%s%sout of memory allocating %lu bytes after a total of %lu bytes\n",
           name, *name ? ": " : "",
           (unsigned long) size, (unsigned long) allocated);
 #else /* HAVE_SBRK */
   fprintf (stderr,
-          "\n%s%sCannot allocate %lu bytes\n",
+          "\n%s%sout of memory allocating %lu bytes\n",
           name, *name ? ": " : "",
           (unsigned long) size);
 #endif /* HAVE_SBRK */
@@ -90,8 +138,7 @@ xmalloc_failed (size)
 }  
 
 PTR
-xmalloc (size)
-    size_t size;
+xmalloc (size_t size)
 {
   PTR newmem;
 
@@ -105,8 +152,7 @@ xmalloc (size)
 }
 
 PTR
-xcalloc (nelem, elsize)
-  size_t nelem, elsize;
+xcalloc (size_t nelem, size_t elsize)
 {
   PTR newmem;
 
@@ -121,9 +167,7 @@ xcalloc (nelem, elsize)
 }
 
 PTR
-xrealloc (oldmem, size)
-    PTR oldmem;
-    size_t size;
+xrealloc (PTR oldmem, size_t size)
 {
   PTR newmem;