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db: fix build with clang 16 on Darwin

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Both `_spin_lock_try` and `_spin_unlock` are private and deprecated
APIs, which are not exported by any headers in the SDK. The build fails
because the configure script does not define the functions before
calling them, which is treated as error by clang 16.

This patch replaces use of those APIs with `os_unfair_lock`, which is
the recommended replacement per the deprecation messages.
This commit is contained in:
Randy Eckenrode 2023-07-01 13:56:34 -04:00
parent 6302ba07e3
commit 38018514e8
No known key found for this signature in database
GPG Key ID: 64C1CD4EC2A600D9
6 changed files with 105 additions and 4 deletions
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55
pkgs/development/libraries/db/darwin-mutexes-4.8.patch Normal file
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@ -0,0 +1,55 @@
diff -ur a/dist/aclocal/mutex.m4 b/dist/aclocal/mutex.m4
--- a/dist/aclocal/mutex.m4 1969-12-31 19:00:01.000000000 -0500
+++ b/dist/aclocal/mutex.m4 2023-06-05 19:14:47.214158196 -0400
@@ -372,10 +376,11 @@
# _spin_lock_try/_spin_unlock: Apple/Darwin
if test "$db_cv_mutex" = no; then
-AC_TRY_LINK(,[
- int x;
- _spin_lock_try(&x);
- _spin_unlock(&x);
+AC_TRY_LINK([
+#include <os/lock.h>],[
+ os_unfair_lock x = OS_UNFAIR_LOCK_INIT;
+ bool _ = os_unfair_lock_trylock(&x);
+ os_unfair_lock_unlock(&x);
], [db_cv_mutex=Darwin/_spin_lock_try])
fi
diff -ur a/dbinc/mutex_int.h b/dbinc/mutex_int.h
--- a/dbinc/mutex_int.h 1969-12-31 19:00:01.000000000 -0500
+++ b/dbinc/mutex_int.h 2023-06-05 19:15:37.510514745 -0400
@@ -154,14 +154,13 @@
* Apple/Darwin library functions.
*********************************************************************/
#ifdef HAVE_MUTEX_DARWIN_SPIN_LOCK_TRY
-typedef u_int32_t tsl_t;
+#include <os/lock.h>
+typedef os_unfair_lock tsl_t;
#ifdef LOAD_ACTUAL_MUTEX_CODE
-extern int _spin_lock_try(tsl_t *);
-extern void _spin_unlock(tsl_t *);
-#define MUTEX_SET(tsl) _spin_lock_try(tsl)
-#define MUTEX_UNSET(tsl) _spin_unlock(tsl)
-#define MUTEX_INIT(tsl) (MUTEX_UNSET(tsl), 0)
+#define MUTEX_SET(tsl) os_unfair_lock_trylock(tsl)
+#define MUTEX_UNSET(tsl) os_unfair_lock_unlock(tsl)
+#define MUTEX_INIT(tsl) ({ *(tsl) = OS_UNFAIR_LOCK_INIT; tsl; })
#endif
#endif
diff -ur a/dbinc/mutex_int.h b/dbinc/mutex_int.h
--- a/dbinc_auto/mutex_ext.h 1969-12-31 19:00:01.000000000 -0500
+++ b/dbinc_auto/mutex_ext.h 2023-07-01 22:38:20.749201366 -0400
@@ -34,6 +34,9 @@
#if !defined(HAVE_ATOMIC_SUPPORT) && defined(HAVE_MUTEX_SUPPORT)
atomic_value_t __atomic_dec __P((ENV *, db_atomic_t *));
#endif
+#if !defined(HAVE_ATOMIC_SUPPORT) && defined(HAVE_MUTEX_SUPPORT)
+int atomic_compare_exchange __P((ENV *, db_atomic_t *, atomic_value_t, atomic_value_t));
+#endif
int __db_pthread_mutex_init __P((ENV *, db_mutex_t, u_int32_t));
int __db_pthread_mutex_lock __P((ENV *, db_mutex_t));
#if defined(HAVE_SHARED_LATCHES)

42
pkgs/development/libraries/db/darwin-mutexes.patch Normal file
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@ -0,0 +1,42 @@
diff -ur a/dist/aclocal/mutex.m4 b/dist/aclocal/mutex.m4
--- a/dist/aclocal/mutex.m4 1969-12-31 19:00:01.000000000 -0500
+++ b/dist/aclocal/mutex.m4 2023-06-05 19:14:47.214158196 -0400
@@ -441,10 +445,11 @@
# _spin_lock_try/_spin_unlock: Apple/Darwin
if test "$db_cv_mutex" = no; then
-AC_TRY_LINK(,[
- int x;
- _spin_lock_try(&x);
- _spin_unlock(&x);
+AC_TRY_LINK([
+#include <os/lock.h>],[
+ os_unfair_lock x = OS_UNFAIR_LOCK_INIT;
+ bool _ = os_unfair_lock_trylock(&x);
+ os_unfair_lock_unlock(&x);
], [db_cv_mutex=Darwin/_spin_lock_try])
fi
diff -ur a/src/dbinc/mutex_int.h b/src/dbinc/mutex_int.h
--- a/src/dbinc/mutex_int.h 1969-12-31 19:00:01.000000000 -0500
+++ b/src/dbinc/mutex_int.h 2023-06-05 19:15:37.510514745 -0400
@@ -154,14 +154,13 @@
* Apple/Darwin library functions.
*********************************************************************/
#ifdef HAVE_MUTEX_DARWIN_SPIN_LOCK_TRY
-typedef u_int32_t tsl_t;
+#include <os/lock.h>
+typedef os_unfair_lock tsl_t;
#ifdef LOAD_ACTUAL_MUTEX_CODE
-extern int _spin_lock_try(tsl_t *);
-extern void _spin_unlock(tsl_t *);
-#define MUTEX_SET(tsl) _spin_lock_try(tsl)
-#define MUTEX_UNSET(tsl) _spin_unlock(tsl)
-#define MUTEX_INIT(tsl) (MUTEX_UNSET(tsl), 0)
+#define MUTEX_SET(tsl) os_unfair_lock_trylock(tsl)
+#define MUTEX_UNSET(tsl) os_unfair_lock_unlock(tsl)
+#define MUTEX_INIT(tsl) ({ *(tsl) = OS_UNFAIR_LOCK_INIT; tsl; })
#endif
#endif

3
pkgs/development/libraries/db/db-4.8.nix
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@ -3,7 +3,8 @@
import ./generic.nix (args // {
version = "4.8.30";
sha256 = "0ampbl2f0hb1nix195kz1syrqqxpmvnvnfvphambj7xjrl3iljg0";
extraPatches = [ ./clang-4.8.patch ./CVE-2017-10140-4.8-cwd-db_config.patch ];
extraPatches = [ ./clang-4.8.patch ./CVE-2017-10140-4.8-cwd-db_config.patch ]
++ lib.optionals stdenv.isDarwin [ ./darwin-mutexes-4.8.patch ];
drvArgs.hardeningDisable = [ "format" ];
drvArgs.doCheck = false;

3
pkgs/development/libraries/db/db-5.3.nix
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@ -3,5 +3,6 @@
import ./generic.nix (args // {
version = "5.3.28";
sha256 = "0a1n5hbl7027fbz5lm0vp0zzfp1hmxnz14wx3zl9563h83br5ag0";
extraPatches = [ ./clang-5.3.patch ./CVE-2017-10140-cwd-db_config.patch ];
extraPatches = [ ./clang-5.3.patch ./CVE-2017-10140-cwd-db_config.patch ]
++ lib.optionals stdenv.isDarwin [ ./darwin-mutexes.patch ];
})

3
pkgs/development/libraries/db/db-6.0.nix
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@ -4,5 +4,6 @@ import ./generic.nix (args // {
version = "6.0.20";
sha256 = "00r2aaglq625y8r9xd5vw2y070plp88f1mb2gbq3kqsl7128lsl0";
license = lib.licenses.agpl3;
extraPatches = [ ./clang-6.0.patch ./CVE-2017-10140-cwd-db_config.patch ];
extraPatches = [ ./clang-6.0.patch ./CVE-2017-10140-cwd-db_config.patch ]
++ lib.optionals stdenv.isDarwin [ ./darwin-mutexes.patch ];
})

3
pkgs/development/libraries/db/db-6.2.nix
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@ -4,5 +4,6 @@ import ./generic.nix (args // {
version = "6.2.23";
sha256 = "1isxx4jfmnh913jzhp8hhfngbk6dsg46f4kjpvvc56maj64jqqa7";
license = lib.licenses.agpl3;
extraPatches = [ ./clang-6.0.patch ./CVE-2017-10140-cwd-db_config.patch ];
extraPatches = [ ./clang-6.0.patch ./CVE-2017-10140-cwd-db_config.patch ]
++ lib.optionals stdenv.isDarwin [ ./darwin-mutexes.patch ];
})