glibc/sysdeps/alpha/atomicity.h

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/* Low-level functions for atomic operations. Alpha version.
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _ATOMICITY_H
#define _ATOMICITY_H 1
#include <inttypes.h>
static inline int
__attribute__ ((unused))
exchange_and_add (volatile uint32_t *mem, int val)
{
register int result, tmp;
__asm__ __volatile__ (
"/* Inline exchange & add */\n"
"1:\t"
"ldl_l %0,%3\n\t"
"addl %0,%4,%1\n\t"
"stl_c %1,%2\n\t"
"beq %1,2f\n"
Update. 1999-06-18 Thorsten Kukuk <kukuk@suse.de> * sysdeps/alpha/atomicity.h: Correct counting of subsections. 1999-06-17 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdlib/tst-strtoll.c: Avoid warning about huge constant. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfprintf.c (group_member): Make parameters and return types pointers to CHAR_T instead of UCHAR_T. (vfprintf): Change type of work_buffer, workend and string to CHAR_T pointer/array. (process_arg, process_string_arg): Adjust/remove casts. Add missing use of L_ macro. (printf_unknown): Add missing uses of L_ macro. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * wcsmbs/wcschrnul.c: Explicitly cast return value to avoid warning. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/wgenops.c (__wuflow): Fix use of WEOF vs. EOF. Call _IO_switch_to_wget_mode instead of _IO_switch_to_get_mode. (__wunderflow): Likewise. (_IO_switch_to_wget_mode): Likewise. (_IO_init_wmarker): Likewise. * libio/wfileops.c (_IO_wfile_seekoff): Call _IO_switch_to_wget_mode, not _IO_switch_to_get_mode. (_IO_wfile_jumps): Fix pbackfail entry. * libio/iosetvbuf.c (_IO_setvbuf): Only call wide char setbuf function if the stream is currently unoriented. 1999-06-19 Zack Weinberg <zack@rabi.columbia.edu> * wcsmbs/wchar.h: Define __need___va_list before including stdarg.h. Wrap all wide stream functions with #ifdef __USE_ISOC9X. Use __gnuc_va_list in v*w(printf|scanf) prototypes. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libio/oldiopopen.c (_IO_old_proc_open): Apply change from 1999-03-29 to iopopen also here. Reported by Richard Braakman <dark@xs4all.nl>. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * include/features.h: Use __GNUC_PREREQ. * sysdeps/i386/fpu/bits/mathinline.h: Likewise 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfscanf.c (ungetc, inchar) [COMPILE_WPRINTF]: Change EOF to WEOF and remove cast. (UNGETC): Remove macro. (_IO_vfwscanf): Change isspace to ISSPACE and UNGETC to ungetc. * stdio-common/printf-parse.h (find_spec) [!COMPILE_WPRINTF]: Change ISASCII to isascii and MBRLEN to mbrlen. (parse_one_spec): Compare info.spec always against wchar_t values. * stdio-common/vfprintf.c: Remove unused ISASCII and MBRLEN. (_itoa, _itoa_word) [COMPILE_WRPINTF]: Don't cast second argument. (NOT_IN_JUMP_RANGE, CHAR_CLASS): Change (int) to (INT_T), use L_. 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/Makefile (shared-only-routines): Add oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64. (routines): Include oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64 only if doing versioning.
1999-06-21 13:38:44 +00:00
".subsection 1\n"
"2:\t"
"br 1b\n"
Update. 1999-06-18 Thorsten Kukuk <kukuk@suse.de> * sysdeps/alpha/atomicity.h: Correct counting of subsections. 1999-06-17 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdlib/tst-strtoll.c: Avoid warning about huge constant. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfprintf.c (group_member): Make parameters and return types pointers to CHAR_T instead of UCHAR_T. (vfprintf): Change type of work_buffer, workend and string to CHAR_T pointer/array. (process_arg, process_string_arg): Adjust/remove casts. Add missing use of L_ macro. (printf_unknown): Add missing uses of L_ macro. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * wcsmbs/wcschrnul.c: Explicitly cast return value to avoid warning. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/wgenops.c (__wuflow): Fix use of WEOF vs. EOF. Call _IO_switch_to_wget_mode instead of _IO_switch_to_get_mode. (__wunderflow): Likewise. (_IO_switch_to_wget_mode): Likewise. (_IO_init_wmarker): Likewise. * libio/wfileops.c (_IO_wfile_seekoff): Call _IO_switch_to_wget_mode, not _IO_switch_to_get_mode. (_IO_wfile_jumps): Fix pbackfail entry. * libio/iosetvbuf.c (_IO_setvbuf): Only call wide char setbuf function if the stream is currently unoriented. 1999-06-19 Zack Weinberg <zack@rabi.columbia.edu> * wcsmbs/wchar.h: Define __need___va_list before including stdarg.h. Wrap all wide stream functions with #ifdef __USE_ISOC9X. Use __gnuc_va_list in v*w(printf|scanf) prototypes. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libio/oldiopopen.c (_IO_old_proc_open): Apply change from 1999-03-29 to iopopen also here. Reported by Richard Braakman <dark@xs4all.nl>. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * include/features.h: Use __GNUC_PREREQ. * sysdeps/i386/fpu/bits/mathinline.h: Likewise 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfscanf.c (ungetc, inchar) [COMPILE_WPRINTF]: Change EOF to WEOF and remove cast. (UNGETC): Remove macro. (_IO_vfwscanf): Change isspace to ISSPACE and UNGETC to ungetc. * stdio-common/printf-parse.h (find_spec) [!COMPILE_WPRINTF]: Change ISASCII to isascii and MBRLEN to mbrlen. (parse_one_spec): Compare info.spec always against wchar_t values. * stdio-common/vfprintf.c: Remove unused ISASCII and MBRLEN. (_itoa, _itoa_word) [COMPILE_WRPINTF]: Don't cast second argument. (NOT_IN_JUMP_RANGE, CHAR_CLASS): Change (int) to (INT_T), use L_. 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/Makefile (shared-only-routines): Add oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64. (routines): Include oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64 only if doing versioning.
1999-06-21 13:38:44 +00:00
".previous\n\t"
"mb\n\t"
"/* End exchange & add */"
: "=&r"(result), "=&r"(tmp), "=m"(*mem)
: "m" (*mem), "r"(val));
return result;
}
static inline void
__attribute__ ((unused))
atomic_add (volatile uint32_t *mem, int val)
{
register int result;
__asm__ __volatile__ (
"/* Inline exchange & add */\n"
"1:\t"
"ldl_l %0,%2\n\t"
"addl %0,%3,%0\n\t"
"stl_c %0,%1\n\t"
"beq %0,2f\n\t"
Update. 1999-06-18 Thorsten Kukuk <kukuk@suse.de> * sysdeps/alpha/atomicity.h: Correct counting of subsections. 1999-06-17 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdlib/tst-strtoll.c: Avoid warning about huge constant. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfprintf.c (group_member): Make parameters and return types pointers to CHAR_T instead of UCHAR_T. (vfprintf): Change type of work_buffer, workend and string to CHAR_T pointer/array. (process_arg, process_string_arg): Adjust/remove casts. Add missing use of L_ macro. (printf_unknown): Add missing uses of L_ macro. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * wcsmbs/wcschrnul.c: Explicitly cast return value to avoid warning. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/wgenops.c (__wuflow): Fix use of WEOF vs. EOF. Call _IO_switch_to_wget_mode instead of _IO_switch_to_get_mode. (__wunderflow): Likewise. (_IO_switch_to_wget_mode): Likewise. (_IO_init_wmarker): Likewise. * libio/wfileops.c (_IO_wfile_seekoff): Call _IO_switch_to_wget_mode, not _IO_switch_to_get_mode. (_IO_wfile_jumps): Fix pbackfail entry. * libio/iosetvbuf.c (_IO_setvbuf): Only call wide char setbuf function if the stream is currently unoriented. 1999-06-19 Zack Weinberg <zack@rabi.columbia.edu> * wcsmbs/wchar.h: Define __need___va_list before including stdarg.h. Wrap all wide stream functions with #ifdef __USE_ISOC9X. Use __gnuc_va_list in v*w(printf|scanf) prototypes. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libio/oldiopopen.c (_IO_old_proc_open): Apply change from 1999-03-29 to iopopen also here. Reported by Richard Braakman <dark@xs4all.nl>. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * include/features.h: Use __GNUC_PREREQ. * sysdeps/i386/fpu/bits/mathinline.h: Likewise 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfscanf.c (ungetc, inchar) [COMPILE_WPRINTF]: Change EOF to WEOF and remove cast. (UNGETC): Remove macro. (_IO_vfwscanf): Change isspace to ISSPACE and UNGETC to ungetc. * stdio-common/printf-parse.h (find_spec) [!COMPILE_WPRINTF]: Change ISASCII to isascii and MBRLEN to mbrlen. (parse_one_spec): Compare info.spec always against wchar_t values. * stdio-common/vfprintf.c: Remove unused ISASCII and MBRLEN. (_itoa, _itoa_word) [COMPILE_WRPINTF]: Don't cast second argument. (NOT_IN_JUMP_RANGE, CHAR_CLASS): Change (int) to (INT_T), use L_. 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/Makefile (shared-only-routines): Add oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64. (routines): Include oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64 only if doing versioning.
1999-06-21 13:38:44 +00:00
".subsection 1\n"
"2:\t"
"br 1b\n"
Update. 1999-06-18 Thorsten Kukuk <kukuk@suse.de> * sysdeps/alpha/atomicity.h: Correct counting of subsections. 1999-06-17 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdlib/tst-strtoll.c: Avoid warning about huge constant. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfprintf.c (group_member): Make parameters and return types pointers to CHAR_T instead of UCHAR_T. (vfprintf): Change type of work_buffer, workend and string to CHAR_T pointer/array. (process_arg, process_string_arg): Adjust/remove casts. Add missing use of L_ macro. (printf_unknown): Add missing uses of L_ macro. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * wcsmbs/wcschrnul.c: Explicitly cast return value to avoid warning. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/wgenops.c (__wuflow): Fix use of WEOF vs. EOF. Call _IO_switch_to_wget_mode instead of _IO_switch_to_get_mode. (__wunderflow): Likewise. (_IO_switch_to_wget_mode): Likewise. (_IO_init_wmarker): Likewise. * libio/wfileops.c (_IO_wfile_seekoff): Call _IO_switch_to_wget_mode, not _IO_switch_to_get_mode. (_IO_wfile_jumps): Fix pbackfail entry. * libio/iosetvbuf.c (_IO_setvbuf): Only call wide char setbuf function if the stream is currently unoriented. 1999-06-19 Zack Weinberg <zack@rabi.columbia.edu> * wcsmbs/wchar.h: Define __need___va_list before including stdarg.h. Wrap all wide stream functions with #ifdef __USE_ISOC9X. Use __gnuc_va_list in v*w(printf|scanf) prototypes. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libio/oldiopopen.c (_IO_old_proc_open): Apply change from 1999-03-29 to iopopen also here. Reported by Richard Braakman <dark@xs4all.nl>. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * include/features.h: Use __GNUC_PREREQ. * sysdeps/i386/fpu/bits/mathinline.h: Likewise 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfscanf.c (ungetc, inchar) [COMPILE_WPRINTF]: Change EOF to WEOF and remove cast. (UNGETC): Remove macro. (_IO_vfwscanf): Change isspace to ISSPACE and UNGETC to ungetc. * stdio-common/printf-parse.h (find_spec) [!COMPILE_WPRINTF]: Change ISASCII to isascii and MBRLEN to mbrlen. (parse_one_spec): Compare info.spec always against wchar_t values. * stdio-common/vfprintf.c: Remove unused ISASCII and MBRLEN. (_itoa, _itoa_word) [COMPILE_WRPINTF]: Don't cast second argument. (NOT_IN_JUMP_RANGE, CHAR_CLASS): Change (int) to (INT_T), use L_. 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/Makefile (shared-only-routines): Add oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64. (routines): Include oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64 only if doing versioning.
1999-06-21 13:38:44 +00:00
".previous\n\t"
"mb\n\t"
"/* End exchange & add */"
: "=&r"(result), "=m"(*mem)
: "m" (*mem), "r"(val));
}
static inline long
__attribute__ ((unused))
compare_and_swap (volatile long int *p, long int oldval, long int newval)
{
long int ret;
__asm__ __volatile__ (
"/* Inline compare & swap */\n"
"1:\t"
"ldq_l %0,%4\n\t"
"cmpeq %0,%2,%0\n\t"
"beq %0,3f\n\t"
"mov %3,%0\n\t"
"stq_c %0,%1\n\t"
"beq %0,2f\n\t"
Update. 1999-06-18 Thorsten Kukuk <kukuk@suse.de> * sysdeps/alpha/atomicity.h: Correct counting of subsections. 1999-06-17 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdlib/tst-strtoll.c: Avoid warning about huge constant. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfprintf.c (group_member): Make parameters and return types pointers to CHAR_T instead of UCHAR_T. (vfprintf): Change type of work_buffer, workend and string to CHAR_T pointer/array. (process_arg, process_string_arg): Adjust/remove casts. Add missing use of L_ macro. (printf_unknown): Add missing uses of L_ macro. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * wcsmbs/wcschrnul.c: Explicitly cast return value to avoid warning. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/wgenops.c (__wuflow): Fix use of WEOF vs. EOF. Call _IO_switch_to_wget_mode instead of _IO_switch_to_get_mode. (__wunderflow): Likewise. (_IO_switch_to_wget_mode): Likewise. (_IO_init_wmarker): Likewise. * libio/wfileops.c (_IO_wfile_seekoff): Call _IO_switch_to_wget_mode, not _IO_switch_to_get_mode. (_IO_wfile_jumps): Fix pbackfail entry. * libio/iosetvbuf.c (_IO_setvbuf): Only call wide char setbuf function if the stream is currently unoriented. 1999-06-19 Zack Weinberg <zack@rabi.columbia.edu> * wcsmbs/wchar.h: Define __need___va_list before including stdarg.h. Wrap all wide stream functions with #ifdef __USE_ISOC9X. Use __gnuc_va_list in v*w(printf|scanf) prototypes. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libio/oldiopopen.c (_IO_old_proc_open): Apply change from 1999-03-29 to iopopen also here. Reported by Richard Braakman <dark@xs4all.nl>. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * include/features.h: Use __GNUC_PREREQ. * sysdeps/i386/fpu/bits/mathinline.h: Likewise 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfscanf.c (ungetc, inchar) [COMPILE_WPRINTF]: Change EOF to WEOF and remove cast. (UNGETC): Remove macro. (_IO_vfwscanf): Change isspace to ISSPACE and UNGETC to ungetc. * stdio-common/printf-parse.h (find_spec) [!COMPILE_WPRINTF]: Change ISASCII to isascii and MBRLEN to mbrlen. (parse_one_spec): Compare info.spec always against wchar_t values. * stdio-common/vfprintf.c: Remove unused ISASCII and MBRLEN. (_itoa, _itoa_word) [COMPILE_WRPINTF]: Don't cast second argument. (NOT_IN_JUMP_RANGE, CHAR_CLASS): Change (int) to (INT_T), use L_. 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/Makefile (shared-only-routines): Add oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64. (routines): Include oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64 only if doing versioning.
1999-06-21 13:38:44 +00:00
".subsection 1\n"
"2:\t"
"br 1b\n"
Update. 1999-06-18 Thorsten Kukuk <kukuk@suse.de> * sysdeps/alpha/atomicity.h: Correct counting of subsections. 1999-06-17 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdlib/tst-strtoll.c: Avoid warning about huge constant. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfprintf.c (group_member): Make parameters and return types pointers to CHAR_T instead of UCHAR_T. (vfprintf): Change type of work_buffer, workend and string to CHAR_T pointer/array. (process_arg, process_string_arg): Adjust/remove casts. Add missing use of L_ macro. (printf_unknown): Add missing uses of L_ macro. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * wcsmbs/wcschrnul.c: Explicitly cast return value to avoid warning. 1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/wgenops.c (__wuflow): Fix use of WEOF vs. EOF. Call _IO_switch_to_wget_mode instead of _IO_switch_to_get_mode. (__wunderflow): Likewise. (_IO_switch_to_wget_mode): Likewise. (_IO_init_wmarker): Likewise. * libio/wfileops.c (_IO_wfile_seekoff): Call _IO_switch_to_wget_mode, not _IO_switch_to_get_mode. (_IO_wfile_jumps): Fix pbackfail entry. * libio/iosetvbuf.c (_IO_setvbuf): Only call wide char setbuf function if the stream is currently unoriented. 1999-06-19 Zack Weinberg <zack@rabi.columbia.edu> * wcsmbs/wchar.h: Define __need___va_list before including stdarg.h. Wrap all wide stream functions with #ifdef __USE_ISOC9X. Use __gnuc_va_list in v*w(printf|scanf) prototypes. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libio/oldiopopen.c (_IO_old_proc_open): Apply change from 1999-03-29 to iopopen also here. Reported by Richard Braakman <dark@xs4all.nl>. 1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de> * include/features.h: Use __GNUC_PREREQ. * sysdeps/i386/fpu/bits/mathinline.h: Likewise 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * stdio-common/vfscanf.c (ungetc, inchar) [COMPILE_WPRINTF]: Change EOF to WEOF and remove cast. (UNGETC): Remove macro. (_IO_vfwscanf): Change isspace to ISSPACE and UNGETC to ungetc. * stdio-common/printf-parse.h (find_spec) [!COMPILE_WPRINTF]: Change ISASCII to isascii and MBRLEN to mbrlen. (parse_one_spec): Compare info.spec always against wchar_t values. * stdio-common/vfprintf.c: Remove unused ISASCII and MBRLEN. (_itoa, _itoa_word) [COMPILE_WRPINTF]: Don't cast second argument. (NOT_IN_JUMP_RANGE, CHAR_CLASS): Change (int) to (INT_T), use L_. 1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/Makefile (shared-only-routines): Add oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64. (routines): Include oldiofgetpos, oldiofgetpos64, oldiofsetpos and oldiofsetpos64 only if doing versioning.
1999-06-21 13:38:44 +00:00
".previous\n\t"
"3:\t"
"mb\n\t"
"/* End compare & swap */"
: "=&r"(ret), "=m"(*p)
: "r"(oldval), "r"(newval), "m"(*p));
return ret;
}
#endif /* atomicity.h */