From 0c6cb5285bc90b35dfdb476f47fe9bad721abf8b Mon Sep 17 00:00:00 2001 From: Xi Ruoyao Date: Fri, 29 Aug 2025 11:39:36 +0800 Subject: [PATCH] nptl: Provide __pthread_rwlock_unlock compat symbol for versions before 2.43 The symbol was unintentionally leaked on ports introduced after GLIBC_2.34, provide the compat symbol to avoid breaking ABI on them. Signed-off-by: Xi Ruoyao Reviewed-by: Florian Weimer --- nptl/Versions | 2 ++ nptl/pthread_rwlock_unlock.c | 6 +++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/nptl/Versions b/nptl/Versions index ef55376dd9..b813b675b9 100644 --- a/nptl/Versions +++ b/nptl/Versions @@ -381,6 +381,8 @@ libc { GLIBC_2.42 { pthread_gettid_np; } + GLIBC_2.43 { + } GLIBC_PRIVATE { __libc_alloca_cutoff; __lll_lock_wake_private; diff --git a/nptl/pthread_rwlock_unlock.c b/nptl/pthread_rwlock_unlock.c index 988e5a94a5..6abc2273d9 100644 --- a/nptl/pthread_rwlock_unlock.c +++ b/nptl/pthread_rwlock_unlock.c @@ -51,7 +51,11 @@ libc_hidden_ver (___pthread_rwlock_unlock, __pthread_rwlock_unlock) compat_symbol (libpthread, ___pthread_rwlock_unlock, pthread_rwlock_unlock, GLIBC_2_1); #endif -#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34) + +/* The symbol was unintentionally leaked on ports introduced after 2.34 + release. Provide the compat symbol for versions before 2.43 to avoid + breaking ABI. */ +#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_43) compat_symbol (libpthread, ___pthread_rwlock_unlock, __pthread_rwlock_unlock, GLIBC_2_2); #endif -- 2.47.3