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malloc: fix an over-allocation bug
[musl]
/
src
/
internal
/
pthread_impl.h
diff --git
a/src/internal/pthread_impl.h
b/src/internal/pthread_impl.h
index
602d6f5
..
f6a4f2c
100644
(file)
--- a/
src/internal/pthread_impl.h
+++ b/
src/internal/pthread_impl.h
@@
-13,11
+13,15
@@
#define pthread __pthread
struct pthread {
#define pthread __pthread
struct pthread {
+ /* Part 1 -- these fields may be external or
+ * internal (accessed via asm) ABI. Do not change. */
struct pthread *self;
void **dtv, *unused1, *unused2;
uintptr_t sysinfo;
uintptr_t canary, canary2;
pid_t tid, pid;
struct pthread *self;
void **dtv, *unused1, *unused2;
uintptr_t sysinfo;
uintptr_t canary, canary2;
pid_t tid, pid;
+
+ /* Part 2 -- implementation details, non-ABI. */
int tsd_used, errno_val;
volatile int cancel, canceldisable, cancelasync;
int detached;
int tsd_used, errno_val;
volatile int cancel, canceldisable, cancelasync;
int detached;
@@
-39,13
+43,17
@@
struct pthread {
int unblock_cancel;
volatile int timer_id;
locale_t locale;
int unblock_cancel;
volatile int timer_id;
locale_t locale;
- volatile int killlock[
2
];
- volatile int exitlock[
2
];
+ volatile int killlock[
1
];
+ volatile int exitlock[
1
];
volatile int startlock[2];
unsigned long sigmask[_NSIG/8/sizeof(long)];
char *dlerror_buf;
int dlerror_flag;
void *stdio_locks;
volatile int startlock[2];
unsigned long sigmask[_NSIG/8/sizeof(long)];
char *dlerror_buf;
int dlerror_flag;
void *stdio_locks;
+ size_t guard_size;
+
+ /* Part 3 -- the positions of these fields relative to
+ * the end of the structure is external and internal ABI. */
uintptr_t canary_at_end;
void **dtv_copy;
};
uintptr_t canary_at_end;
void **dtv_copy;
};