[libc-commits] [libc] [libc] Change fcntl cmd when only fcntl64 is available (PR #99675)

[via libc-commits]

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@@ -86,17 +86,37 @@ int fcntl(int fd, int cmd, void *arg) {
     libc_errno = -ret;
     return -1;
   }
+  case F_GETLK: {
+#if defined(SYS_fcntl64)
+    if constexpr (FCNTL_SYSCALL_ID == SYS_fcntl64)
+      return fcntl(fd, F_GETLK64, arg);
+#endif
+    break;
+  }
+  case F_SETLK: {
+#if defined(SYS_fcntl64)
+    if constexpr (FCNTL_SYSCALL_ID == SYS_fcntl64)
+      return fcntl(fd, F_SETLK64, arg);
+#endif
+    break;
+  }
+  case F_SETLKW: {
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lntue wrote:

why don't we wrap all these 3 cases inside `#ifdef SYS_fcntl64` for now?

https://github.com/llvm/llvm-project/pull/99675