Revert "[libc][POSIX][pthreads] implemented missing pthread_rwlockattr functions" (llvm#91966)

Reverts llvm#90249

Fullbuild is broken:
https://lab.llvm.org/buildbot/#/builders/163/builds/56501

Author: SchrodingerZhu

libc/config/linux/x86_64/entrypoints.txt

@@ -673,10 +673,8 @@ if(LLVM_LIBC_FULL_BUILD)
     libc.src.pthread.pthread_mutexattr_settype
     libc.src.pthread.pthread_once
     libc.src.pthread.pthread_rwlockattr_destroy
-    libc.src.pthread.pthread_rwlockattr_getkind_np
     libc.src.pthread.pthread_rwlockattr_getpshared
     libc.src.pthread.pthread_rwlockattr_init
-    libc.src.pthread.pthread_rwlockattr_setkind_np
     libc.src.pthread.pthread_rwlockattr_setpshared
     libc.src.pthread.pthread_setspecific
 

libc/include/pthread.h.def

@@ -38,11 +38,6 @@ enum {
 #define PTHREAD_PROCESS_PRIVATE 0
 #define PTHREAD_PROCESS_SHARED 1
 
-#define PTHREAD_RWLOCK_PREFER_READER_NP 0
-#define PTHREAD_RWLOCK_PREFER_WRITER_NP 1
-#define PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP 2
-
-
 %%public_api()
 
 #endif // LLVM_LIBC_PTHREAD_H

libc/spec/posix.td

@@ -1234,11 +1234,6 @@ def POSIX : StandardSpec<"POSIX"> {
           RetValSpec<IntType>,
           [ArgSpec<PThreadRWLockAttrTPtr>]
       >,
-      FunctionSpec<
-          "pthread_rwlockattr_getkind_np",
-          RetValSpec<IntType>,
-          [ArgSpec<PThreadRWLockAttrTPtr>, ArgSpec<IntPtr>]
-      >,
       FunctionSpec<
           "pthread_rwlockattr_getpshared",
           RetValSpec<IntType>,
@@ -1249,11 +1244,6 @@ def POSIX : StandardSpec<"POSIX"> {
           RetValSpec<IntType>,
           [ArgSpec<PThreadRWLockAttrTPtr>]
       >,
-      FunctionSpec<
-          "pthread_rwlockattr_setkind_np",
-          RetValSpec<IntType>,
-          [ArgSpec<PThreadRWLockAttrTPtr>, ArgSpec<IntType>]
-      >,
       FunctionSpec<
           "pthread_rwlockattr_setpshared",
           RetValSpec<IntType>,

libc/src/pthread/CMakeLists.txt

@@ -470,16 +470,6 @@ add_entrypoint_object(
     libc.include.pthread
 )
 
-add_entrypoint_object(
-  pthread_rwlockattr_getkind_np
-  SRCS
-    pthread_rwlockattr_getkind_np.cpp
-  HDRS
-    pthread_rwlockattr_getkind_np.h
-  DEPENDS
-    libc.include.pthread
-)
-
 add_entrypoint_object(
   pthread_rwlockattr_getpshared
   SRCS
@@ -500,17 +490,6 @@ add_entrypoint_object(
     libc.include.pthread
 )
 
-add_entrypoint_object(
-  pthread_rwlockattr_setkind_np
-  SRCS
-    pthread_rwlockattr_setkind_np.cpp
-  HDRS
-    pthread_rwlockattr_setkind_np.h
-  DEPENDS
-    libc.include.pthread
-    libc.include.errno
-)
-
 add_entrypoint_object(
   pthread_rwlockattr_setpshared
   SRCS

libc/src/pthread/pthread_rwlockattr_getkind_np.cpp

@@ -17,7 +17,6 @@ namespace LIBC_NAMESPACE {
 LLVM_LIBC_FUNCTION(int, pthread_rwlockattr_init,
                    (pthread_rwlockattr_t * attr)) {
   attr->pshared = PTHREAD_PROCESS_PRIVATE;
-  attr->pref = PTHREAD_RWLOCK_PREFER_READER_NP;
   return 0;
 }
 

libc/src/pthread/pthread_rwlockattr_getkind_np.h

@@ -68,9 +68,7 @@ add_libc_unittest(
     libc.include.errno
     libc.include.pthread
     libc.src.pthread.pthread_rwlockattr_destroy
-    libc.src.pthread.pthread_rwlockattr_getkind_np
     libc.src.pthread.pthread_rwlockattr_getpshared
     libc.src.pthread.pthread_rwlockattr_init
-    libc.src.pthread.pthread_rwlockattr_setkind_np
     libc.src.pthread.pthread_rwlockattr_setpshared
 )

libc/src/pthread/pthread_rwlockattr_init.cpp

@@ -8,10 +8,8 @@
 
 #include "include/llvm-libc-macros/generic-error-number-macros.h" // EINVAL
 #include "src/pthread/pthread_rwlockattr_destroy.h"
-#include "src/pthread/pthread_rwlockattr_getkind_np.h"
 #include "src/pthread/pthread_rwlockattr_getpshared.h"
 #include "src/pthread/pthread_rwlockattr_init.h"
-#include "src/pthread/pthread_rwlockattr_setkind_np.h"
 #include "src/pthread/pthread_rwlockattr_setpshared.h"
 #include "test/UnitTest/Test.h"
 
@@ -27,61 +25,40 @@ TEST(LlvmLibcPThreadRWLockAttrTest, InitAndDestroy) {
 TEST(LlvmLibcPThreadRWLockAttrTest, GetDefaultValues) {
   pthread_rwlockattr_t attr;
 
-  // Invalid values.
+  // Invalid value.
   int pshared = 42;
-  int pref = 1337;
 
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_init(&attr), 0);
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getpshared(&attr, &pshared), 0);
-  ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getkind_np(&attr, &pref), 0);
-
   ASSERT_EQ(pshared, PTHREAD_PROCESS_PRIVATE);
-  ASSERT_EQ(pref, PTHREAD_RWLOCK_PREFER_READER_NP);
-
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_destroy(&attr), 0);
 }
 
 TEST(LlvmLibcPThreadRWLockAttrTest, SetGoodValues) {
   pthread_rwlockattr_t attr;
 
-  // Invalid values.
+  // Invalid value.
   int pshared = 42;
-  int pref = 1337;
 
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_init(&attr), 0);
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setpshared(
                 &attr, PTHREAD_PROCESS_SHARED),
             0);
-  ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setkind_np(
-                &attr, PTHREAD_RWLOCK_PREFER_WRITER_NP),
-            0);
-
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getpshared(&attr, &pshared), 0);
-  ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getkind_np(&attr, &pref), 0);
-
   ASSERT_EQ(pshared, PTHREAD_PROCESS_SHARED);
-  ASSERT_EQ(pref, PTHREAD_RWLOCK_PREFER_WRITER_NP);
-
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_destroy(&attr), 0);
 }
 
 TEST(LlvmLibcPThreadRWLockAttrTest, SetBadValues) {
   pthread_rwlockattr_t attr;
 
-  // Invalid values.
+  // Invalid value.
   int pshared = 42;
-  int pref = 1337;
 
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_init(&attr), 0);
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setpshared(&attr, pshared),
             EINVAL);
-  ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setkind_np(&attr, pref), EINVAL);
-
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getpshared(&attr, &pshared), 0);
-  ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getkind_np(&attr, &pref), 0);
-
   ASSERT_EQ(pshared, PTHREAD_PROCESS_PRIVATE);
-  ASSERT_EQ(pref, PTHREAD_RWLOCK_PREFER_READER_NP);
-
   ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_destroy(&attr), 0);
 }