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-rw-r--r--src/internal/pthread_impl.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index 4a0db987..f6a4f2c2 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -13,11 +13,15 @@
#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;
+
+ /* Part 2 -- implementation details, non-ABI. */
int tsd_used, errno_val;
volatile int cancel, canceldisable, cancelasync;
int detached;
@@ -47,6 +51,9 @@ struct pthread {
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;
};