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authorFlorian Weimer <fweimer@redhat.com>2021-12-09 09:49:32 +0100
committerFlorian Weimer <fweimer@redhat.com>2021-12-09 09:49:32 +0100
commit8d1927d8dc5aad0f01c929123086be3a5b799d18 (patch)
tree29aead65fea69f988ce19f391b5a61c3f1829a1d /sysdeps/nptl
parentce2248ab91b2ea09a378f85012f251f31ac65e31 (diff)
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nptl: Introduce THREAD_GETMEM_VOLATILE
This will be needed for rseq TCB access. Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Diffstat (limited to 'sysdeps/nptl')
-rw-r--r--sysdeps/nptl/tcb-access.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/nptl/tcb-access.h b/sysdeps/nptl/tcb-access.h
index b4137b8ab8..bbe20b7225 100644
--- a/sysdeps/nptl/tcb-access.h
+++ b/sysdeps/nptl/tcb-access.h
@@ -22,6 +22,8 @@
#define THREAD_GETMEM(descr, member) \
descr->member
+#define THREAD_GETMEM_VOLATILE(descr, member) \
+ (*(volatile __typeof (descr->member) *)&descr->member)
#define THREAD_GETMEM_NC(descr, member, idx) \
descr->member[idx]
#define THREAD_SETMEM(descr, member, value) \