From bddde5860ffb8a78587854cc8e3e914bd69269ca Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Sun, 22 Jan 2017 10:24:51 +0100
Subject: remove PID caching

Follow GNU C Library from c579f48edba88380635ab98cb612030e3ed8691e
and remove the PID caching. These simplifies the architecture specific
assembly code.
The run of the test suite found no regressions, it even solves
some of the test failures for x86/x86_64/sparc.

Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Acked-by: Matthew Fortune <Matthew.Fortune@imgtec.com>
Acked-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
---
 libc/sysdeps/linux/xtensa/clone.S | 19 -------------------
 1 file changed, 19 deletions(-)

(limited to 'libc/sysdeps/linux/xtensa/clone.S')

diff --git a/libc/sysdeps/linux/xtensa/clone.S b/libc/sysdeps/linux/xtensa/clone.S
index efdfcdd5e..913ec5a5f 100644
--- a/libc/sysdeps/linux/xtensa/clone.S
+++ b/libc/sysdeps/linux/xtensa/clone.S
@@ -21,9 +21,6 @@
 #include <sysdep.h>
 #define _ERRNO_H	1
 #include <bits/errno.h>
-#ifdef RESET_PID
-#include <tls.h>
-#endif
 #define __ASSEMBLY__
 #include <linux/sched.h>
 
@@ -74,21 +71,6 @@ ENTRY (__clone)
 
 #if CLONE_THREAD != 0x00010000 || CLONE_VM != 0x00000100
 # error invalid values for CLONE_THREAD or CLONE_VM
-#endif
-
-#ifdef RESET_PID
-	bbsi.l	a6, 16, .Lskip_restore_pid	/* CLONE_THREAD = 0x00010000 */
-	movi	a2, -1
-	bbsi	a6, 8, .Lgotpid			/* CLONE_VM     = 0x00000100 */
-	movi	a2, SYS_ify(getpid)
-	syscall
-.Lgotpid:
-	rur	a3, threadptr
-	movi	a0, TLS_PRE_TCB_SIZE
-	sub	a3, a3, a0
-	s32i	a2, a3, PID
-	s32i	a2, a3, TID
-.Lskip_restore_pid:
 #endif
 
 	/* start child thread */
@@ -115,5 +97,4 @@ ENTRY (__clone)
 #endif
 
 PSEUDO_END (__clone)
-
 weak_alias (__clone, clone)
-- 
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