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[Emacs-diffs] trunk r113466: * alloc.c (staticpro): Avoid buffer overrun
From: |
Paul Eggert |
Subject: |
[Emacs-diffs] trunk r113466: * alloc.c (staticpro): Avoid buffer overrun on repeated calls. |
Date: |
Fri, 19 Jul 2013 17:54:30 +0000 |
User-agent: |
Bazaar (2.6b2) |
------------------------------------------------------------
revno: 113466
revision-id: address@hidden
parent: address@hidden
committer: Paul Eggert <address@hidden>
branch nick: trunk
timestamp: Fri 2013-07-19 10:54:26 -0700
message:
* alloc.c (staticpro): Avoid buffer overrun on repeated calls.
(NSTATICS): Now a constant; doesn't need to be a macro.
modified:
src/ChangeLog changelog-20091113204419-o5vbwnq5f7feedwu-1438
src/alloc.c alloc.c-20091113204419-o5vbwnq5f7feedwu-252
=== modified file 'src/ChangeLog'
--- a/src/ChangeLog 2013-07-19 16:15:51 +0000
+++ b/src/ChangeLog 2013-07-19 17:54:26 +0000
@@ -1,3 +1,8 @@
+2013-07-19 Paul Eggert <address@hidden>
+
+ * alloc.c (staticpro): Avoid buffer overrun on repeated calls.
+ (NSTATICS): Now a constant; doesn't need to be a macro.
+
2013-07-19 Richard Stallman <address@hidden>
* coding.c (decode_coding_utf_8): Add simple loop for fast
=== modified file 'src/alloc.c'
--- a/src/alloc.c 2013-07-19 01:24:35 +0000
+++ b/src/alloc.c 2013-07-19 17:54:26 +0000
@@ -341,7 +341,7 @@
/* Addresses of staticpro'd variables. Initialize it to a nonzero
value; otherwise some compilers put it into BSS. */
-#define NSTATICS 0x800
+enum { NSTATICS = 2048 };
static Lisp_Object *staticvec[NSTATICS] = {&Vpurify_flag};
/* Index of next unused slot in staticvec. */
@@ -5136,9 +5136,9 @@
void
staticpro (Lisp_Object *varaddress)
{
- staticvec[staticidx++] = varaddress;
if (staticidx >= NSTATICS)
fatal ("NSTATICS too small; try increasing and recompiling Emacs.");
+ staticvec[staticidx++] = varaddress;
}
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