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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-02-12 09:57:30 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-02-22 15:52:56 -0800 |
| commit | 89de9d3958ff4e14f438c3f6800fac80901e2c2f (patch) | |
| tree | 97313e7cba2d8bd385960ac8bf622804b24c638d /sysdeps/x86 | |
| parent | b5be9ae77e3e266ed83f84f0bb29198d71211aa8 (diff) | |
| download | glibc-89de9d3958ff4e14f438c3f6800fac80901e2c2f.tar.gz glibc-89de9d3958ff4e14f438c3f6800fac80901e2c2f.tar.xz glibc-89de9d3958ff4e14f438c3f6800fac80901e2c2f.zip | |
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>
Diffstat (limited to 'sysdeps/x86')
| -rw-r--r-- | sysdeps/x86/nptl/pthreaddef.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/x86/nptl/pthreaddef.h b/sysdeps/x86/nptl/pthreaddef.h new file mode 100644 index 0000000000..6ff7d601eb --- /dev/null +++ b/sysdeps/x86/nptl/pthreaddef.h @@ -0,0 +1,49 @@ +/* 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. + + 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. */ +#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 |