git: bcbc19335a70 - main - rtld: add lockstate_wlocked()

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=bcbc19335a702a05ed89369c1662a91b686324ce

commit bcbc19335a702a05ed89369c1662a91b686324ce
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-05-01 15:43:30 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2025-05-02 18:08:09 +0000

    rtld: add lockstate_wlocked()
    
    querying the lockstate for write-locked state.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
---
 libexec/rtld-elf/rtld_lock.c | 6 ++++++
 libexec/rtld-elf/rtld_lock.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/libexec/rtld-elf/rtld_lock.c b/libexec/rtld-elf/rtld_lock.c
index 40fa724b6227..d99b64d8c66a 100644
--- a/libexec/rtld-elf/rtld_lock.c
+++ b/libexec/rtld-elf/rtld_lock.c
@@ -326,6 +326,12 @@ lock_restart_for_upgrade(RtldLockState *lockstate)
 	}
 }
 
+bool
+lockstate_wlocked(const RtldLockState *lockstate)
+{
+	return (lockstate->lockstate == RTLD_LOCK_WLOCKED);
+}
+
 void
 dlerror_dflt_init(void)
 {
diff --git a/libexec/rtld-elf/rtld_lock.h b/libexec/rtld-elf/rtld_lock.h
index f41c23d7f69a..c9b11176b7de 100644
--- a/libexec/rtld-elf/rtld_lock.h
+++ b/libexec/rtld-elf/rtld_lock.h
@@ -93,6 +93,7 @@ void 	wlock_acquire(rtld_lock_t, RtldLockState *);
 void	lock_release(rtld_lock_t, RtldLockState *);
 void	lock_upgrade(rtld_lock_t, RtldLockState *);
 void	lock_restart_for_upgrade(RtldLockState *);
+bool	lockstate_wlocked(const RtldLockState *);
 
 void	dlerror_dflt_init(void);