From 773862b3335790245f0057324a1e7ad8a3995c4d Mon Sep 17 00:00:00 2001
From: Jake Hughes <jh@jakehughes.uk>
Date: Wed, 21 Aug 2024 21:08:18 +0100
Subject: [PATCH] Remove old POSIX TLS APIs

We have now switched to using fast TLS support, so this old POSIX
get/set_specific support for tracking GC roots in TLS is no longer
required.
---
 alloc.c              | 12 ------------
 include/gc/gc.h      |  3 ---
 pthread_stop_world.c |  2 --
 3 files changed, 17 deletions(-)

diff --git a/alloc.c b/alloc.c
index 167309226..4896fbcd5 100644
--- a/alloc.c
+++ b/alloc.c
@@ -1861,15 +1861,3 @@ GC_INNER ptr_t GC_allocobj(size_t lg, int k)
     GC_fail_count = 0;
     return (ptr_t)(*flh);
 }
-
-STATIC __thread void* tls_rootset = NULL;
-
-GC_INNER void GC_init_tls_rootset(void * rootset)
-{
-    tls_rootset = rootset;
-}
-
-GC_INNER void* GC_tls_rootset()
-{
-    return tls_rootset;
-}
diff --git a/include/gc/gc.h b/include/gc/gc.h
index b52443620..41882ca86 100644
--- a/include/gc/gc.h
+++ b/include/gc/gc.h
@@ -2358,7 +2358,4 @@ GC_API void GC_CALL GC_win32_free_heap(void);
   } /* extern "C" */
 #endif
 
-GC_API void GC_init_tls_rootset(void * rootset);
-GC_API void * GC_tls_rootset();
-
 #endif /* GC_H */
diff --git a/pthread_stop_world.c b/pthread_stop_world.c
index b8bf0d173..5c617ba06 100644
--- a/pthread_stop_world.c
+++ b/pthread_stop_world.c
@@ -398,7 +398,6 @@ STATIC void GC_suspend_handler_inner(ptr_t dummy, void *context)
   }
   crtn = me -> crtn;
   GC_store_stack_ptr(crtn);
-  crtn -> tls_rootset = GC_tls_rootset();
   get_thread_local_roots(&tlr);
   crtn -> compiler_thread_roots = tlr;
 
@@ -834,7 +833,6 @@ GC_INNER void GC_push_all_stacks(void)
     if (me != NULL) {
         struct GC_ThreadLocalRoots tlr;
         get_thread_local_roots(&tlr);
-        me -> crtn -> tls_rootset = GC_tls_rootset();
         me -> crtn -> compiler_thread_roots = tlr;
     }