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authorH.J. Lu <hjl.tools@gmail.com>2021-07-12 14:36:39 -0700
committerH.J. Lu <hjl.tools@gmail.com>2021-07-12 18:13:32 -0700
commit84ea6ea24bd5bef674ce16a2832dbbe4d514e6d9 (patch)
tree4481eb56c43060ed63b8f4013e20f2169d32c0fe /malloc/mcheck.c
parent72e84d1db22203e01a43268de71ea8669eca2863 (diff)
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mcheck: Align struct hdr to MALLOC_ALIGNMENT bytes [BZ #28068]
1. Align struct hdr to MALLOC_ALIGNMENT bytes so that malloc hooks in libmcheck align memory to MALLOC_ALIGNMENT bytes. 2. Remove tst-mallocalign1 from tests-exclude-mcheck for i386 and x32. 3. Add tst-pvalloc-fortify and tst-reallocarray to tests-exclude-mcheck since they use malloc_usable_size (see BZ #22057). This fixed BZ #28068. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'malloc/mcheck.c')
-rw-r--r--malloc/mcheck.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/malloc/mcheck.c b/malloc/mcheck.c
index 2a1fc645d4..d2efcfb742 100644
--- a/malloc/mcheck.c
+++ b/malloc/mcheck.c
@@ -20,6 +20,7 @@
#ifndef _MALLOC_INTERNAL
# define _MALLOC_INTERNAL
# include <malloc.h>
+# include <malloc-size.h>
# include <mcheck.h>
# include <stdint.h>
# include <stdio.h>
@@ -53,7 +54,7 @@ struct hdr
struct hdr *next;
void *block; /* Real block allocated, for memalign. */
unsigned long int magic2; /* Extra, keeps us doubleword aligned. */
-};
+} __attribute__ ((aligned (MALLOC_ALIGNMENT)));
/* This is the beginning of the list of all memory blocks allocated.
It is only constructed if the pedantic testing is requested. */