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* [glibc] x86: Use x86/nptl/pthreaddef.h
@ 2021-02-23 0:03 H.J. Lu
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From: H.J. Lu @ 2021-02-23 0:03 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=89de9d3958ff4e14f438c3f6800fac80901e2c2f
commit 89de9d3958ff4e14f438c3f6800fac80901e2c2f
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Feb 12 09:57:30 2021 -0800
x86: Use x86/nptl/pthreaddef.h
1. Move sysdeps/i386/nptl/pthreaddef.h to sysdeps/x86/nptl/pthreaddef.h.
2. Remove sysdeps/x86_64/nptl/pthreaddef.h.
Reviewed-by: DJ Delorie <dj@redhat.com>
Diff:
---
sysdeps/{i386 => x86}/nptl/pthreaddef.h | 8 +++++-
sysdeps/x86_64/nptl/pthreaddef.h | 47 ---------------------------------
2 files changed, 7 insertions(+), 48 deletions(-)
diff --git a/sysdeps/i386/nptl/pthreaddef.h b/sysdeps/x86/nptl/pthreaddef.h
similarity index 88%
rename from sysdeps/i386/nptl/pthreaddef.h
rename to sysdeps/x86/nptl/pthreaddef.h
index a488cac603..6ff7d601eb 100644
--- a/sysdeps/i386/nptl/pthreaddef.h
+++ b/sysdeps/x86/nptl/pthreaddef.h
@@ -40,4 +40,10 @@
/* Location of current stack frame. */
-#define CURRENT_STACK_FRAME __builtin_frame_address (0)
+#ifdef __x86_64__
+/* The frame pointer is not usable. */
+# define CURRENT_STACK_FRAME \
+ ({ register char *frame __asm__("rsp"); frame; })
+#else
+# define CURRENT_STACK_FRAME __builtin_frame_address (0)
+#endif
diff --git a/sysdeps/x86_64/nptl/pthreaddef.h b/sysdeps/x86_64/nptl/pthreaddef.h
deleted file mode 100644
index a8b5fa4c45..0000000000
--- a/sysdeps/x86_64/nptl/pthreaddef.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
-
-/* Default stack size. */
-#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
-
-/* Minimum guard size. */
-#define ARCH_MIN_GUARD_SIZE 0
-
-/* Required stack pointer alignment at beginning. SSE requires 16
- bytes. */
-#define STACK_ALIGN 16
-
-/* Minimal stack size after allocating thread descriptor and guard size. */
-#define MINIMAL_REST_STACK 2048
-
-/* Alignment requirement for TCB.
-
- We need to store post-AVX vector registers in the TCB and we want the
- storage to be aligned to at least 32 bytes.
-
- Some processors such as Intel Atom pay a big penalty on every
- access using a segment override if that segment's base is not
- aligned to the size of a cache line. (See Intel 64 and IA-32
- Architectures Optimization Reference Manual, section 13.3.3.3,
- "Segment Base".) On such machines, a cache line is 64 bytes. */
-#define TCB_ALIGNMENT 64
-
-
-/* Location of current stack frame. The frame pointer is not usable. */
-#define CURRENT_STACK_FRAME \
- ({ register char *frame __asm__("rsp"); frame; })
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