X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=include%2Flibiberty.h;h=7a796124bf5932afcb34415f6b37314fd2aeb33d;hb=aefd8b33d97bded58e51d75271f99e1eaec9fb28;hp=8f7d5f64930ee4111f1cce245c90c720c7b46b10;hpb=b36c1ccb1feb678f7279b4a8d66c0125d4295078;p=deliverable%2Fbinutils-gdb.git

diff --git a/include/libiberty.h b/include/libiberty.h
index 8f7d5f6493..7a796124bf 100644
--- a/include/libiberty.h
+++ b/include/libiberty.h
@@ -1,6 +1,6 @@
 /* Function declarations for libiberty.
 
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
    
    Note - certain prototypes declared in this header file are for
    functions whoes implementation copyright does not belong to the
@@ -397,6 +397,17 @@ extern void hex_init (void);
 /* Save files used for communication between processes.  */
 #define PEX_SAVE_TEMPS		0x4
 
+/* Max number of alloca bytes per call before we must switch to malloc.
+
+   ?? Swiped from gnulib's regex_internal.h header.  Is this actually
+   the case?  This number seems arbitrary, though sane.
+
+   The OS usually guarantees only one guard page at the bottom of the stack,
+   and a page size can be as small as 4096 bytes.  So we cannot safely
+   allocate anything larger than 4096 bytes.  Also care for the possibility
+   of a few compiler-allocated temporary stack slots.  */
+#define MAX_ALLOCA_SIZE	4032
+
 /* Prepare to execute one or more programs, with standard output of
    each program fed to standard input of the next.
    FLAGS	As above.