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limits: add _POSIX_PTHREAD_ constant for pthread management

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Add three POSIX‑required pthread‑related constants to limits.h:
- _POSIX_THREAD_DESTRUCTOR_ITERATIONS
- _POSIX_THREAD_KEYS_MAX
- _POSIX_THREAD_THREADS_MAX

These constants are needed for full POSIX pthread compatibility and are
required by certain PSE52 test suites and applications.

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
This commit is contained in:
guoshichao
2025-08-07 11:58:06 +08:00
committed by GUIDINGLI
parent ab572fe1cf
commit b945c7b505
2 changed files with 130 additions and 124 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/limits.h
+6
View File
@@ -314,6 +314,12 @@
#define SEM_NSEMS_MAX _POSIX_SEM_NSEMS_MAX
#define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
/* Required for POSIX pthread management */
#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
#define _POSIX_THREAD_KEYS_MAX CONFIG_TLS_NELEM
#define _POSIX_THREAD_THREADS_MAX 64
/* Required for readv() and writev() */
/* There really is no upper limit on the number of vectors */
libs/libc/unistd/lib_sysconf.c
+124 -124
View File
@@ -57,133 +57,133 @@
* symbolic constants defined in <unistd.h> that are the corresponding
* values used for name.
*
* Variable Value of Name
* Variable Value of Name
*
* {AIO_LISTIO_MAX} _SC_AIO_LISTIO_MAX
* {AIO_MAX} _SC_AIO_MAX
* {AIO_PRIO_DELTA_MAX} _SC_AIO_PRIO_DELTA_MAX
* {ARG_MAX} _SC_ARG_MAX
* {ATEXIT_MAX} _SC_ATEXIT_MAX
* {BC_BASE_MAX} _SC_BC_BASE_MAX
* {BC_DIM_MAX} _SC_BC_DIM_MAX
* {BC_SCALE_MAX} _SC_BC_SCALE_MAX
* {BC_STRING_MAX} _SC_BC_STRING_MAX
* {CHILD_MAX} _SC_CHILD_MAX
* Clock ticks/second _SC_CLK_TCK
* {COLL_WEIGHTS_MAX} _SC_COLL_WEIGHTS_MAX
* {DELAYTIMER_MAX} _SC_DELAYTIMER_MAX
* {EXPR_NEST_MAX} _SC_EXPR_NEST_MAX
* {HOST_NAME_MAX} _SC_HOST_NAME_MAX
* {IOV_MAX} _SC_IOV_MAX
* {LINE_MAX} _SC_LINE_MAX
* {LOGIN_NAME_MAX} _SC_LOGIN_NAME_MAX
* {NGROUPS_MAX} _SC_NGROUPS_MAX
* Maximum size of getgrgid_r() and _SC_GETGR_R_SIZE_MAX
* {AIO_LISTIO_MAX} _SC_AIO_LISTIO_MAX
* {AIO_MAX} _SC_AIO_MAX
* {AIO_PRIO_DELTA_MAX} _SC_AIO_PRIO_DELTA_MAX
* {ARG_MAX} _SC_ARG_MAX
* {ATEXIT_MAX} _SC_ATEXIT_MAX
* {BC_BASE_MAX} _SC_BC_BASE_MAX
* {BC_DIM_MAX} _SC_BC_DIM_MAX
* {BC_SCALE_MAX} _SC_BC_SCALE_MAX
* {BC_STRING_MAX} _SC_BC_STRING_MAX
* {CHILD_MAX} _SC_CHILD_MAX
* Clock ticks/second _SC_CLK_TCK
* {COLL_WEIGHTS_MAX} _SC_COLL_WEIGHTS_MAX
* {DELAYTIMER_MAX} _SC_DELAYTIMER_MAX
* {EXPR_NEST_MAX} _SC_EXPR_NEST_MAX
* {HOST_NAME_MAX} _SC_HOST_NAME_MAX
* {IOV_MAX} _SC_IOV_MAX
* {LINE_MAX} _SC_LINE_MAX
* {LOGIN_NAME_MAX} _SC_LOGIN_NAME_MAX
* {NGROUPS_MAX} _SC_NGROUPS_MAX
* Maximum size of getgrgid_r() and _SC_GETGR_R_SIZE_MAX
* getgrnam_r() data buffers
* Maximum size of getpwuid_r() and _SC_GETPW_R_SIZE_MAX
* Maximum size of getpwuid_r() and _SC_GETPW_R_SIZE_MAX
* getpwnam_r() data buffers
* {MQ_OPEN_MAX} _SC_MQ_OPEN_MAX
* {MQ_PRIO_MAX} _SC_MQ_PRIO_MAX
* {OPEN_MAX} _SC_OPEN_MAX
* _POSIX_ADVISORY_INFO _SC_ADVISORY_INFO
* _POSIX_BARRIERS _SC_BARRIERS
* _POSIX_ASYNCHRONOUS_IO _SC_ASYNCHRONOUS_IO
* _POSIX_CLOCK_SELECTION _SC_CLOCK_SELECTION
* _POSIX_CPUTIME _SC_CPUTIME
* _POSIX_FSYNC _SC_FSYNC
* _POSIX_IPV6 _SC_IPV6
* _POSIX_JOB_CONTROL _SC_JOB_CONTROL
* _POSIX_MAPPED_FILES _SC_MAPPED_FILES
* _POSIX_MEMLOCK _SC_MEMLOCK
* _POSIX_MEMLOCK_RANGE _SC_MEMLOCK_RANGE
* _POSIX_MEMORY_PROTECTION _SC_MEMORY_PROTECTION
* _POSIX_MESSAGE_PASSING _SC_MESSAGE_PASSING
* _POSIX_MONOTONIC_CLOCK _SC_MONOTONIC_CLOCK
* _POSIX_PRIORITIZED_IO _SC_PRIORITIZED_IO
* _POSIX_PRIORITY_SCHEDULING _SC_PRIORITY_SCHEDULING
* _POSIX_RAW_SOCKETS _SC_RAW_SOCKETS
* _POSIX_READER_WRITER_LOCKS _SC_READER_WRITER_LOCKS
* _POSIX_REALTIME_SIGNALS _SC_REALTIME_SIGNALS
* _POSIX_REGEXP _SC_REGEXP
* _POSIX_SAVED_IDS _SC_SAVED_IDS
* _POSIX_SEMAPHORES _SC_SEMAPHORES
* _POSIX_SHARED_MEMORY_OBJECTS _SC_SHARED_MEMORY_OBJECTS
* _POSIX_SHELL _SC_SHELL
* _POSIX_SPAWN _SC_SPAWN
* _POSIX_SPIN_LOCKS _SC_SPIN_LOCKS
* _POSIX_SPORADIC_SERVER _SC_SPORADIC_SERVER
* _POSIX_SS_REPL_MAX _SC_SS_REPL_MAX
* _POSIX_SYNCHRONIZED_IO _SC_SYNCHRONIZED_IO
* _POSIX_THREAD_ATTR_STACKADDR _SC_THREAD_ATTR_STACKADDR
* _POSIX_THREAD_ATTR_STACKSIZE _SC_THREAD_ATTR_STACKSIZE
* _POSIX_THREAD_CPUTIME _SC_THREAD_CPUTIME
* _POSIX_THREAD_PRIO_INHERIT _SC_THREAD_PRIO_INHERIT
* _POSIX_THREAD_PRIO_PROTECT _SC_THREAD_PRIO_PROTECT
* _POSIX_THREAD_PRIORITY_SCHEDULING _SC_THREAD_PRIORITY_SCHEDULING
* _POSIX_THREAD_PROCESS_SHARED _SC_THREAD_PROCESS_SHARED
* _POSIX_THREAD_SAFE_FUNCTIONS _SC_THREAD_SAFE_FUNCTIONS
* _POSIX_THREAD_SPORADIC_SERVER _SC_THREAD_SPORADIC_SERVER
* _POSIX_THREADS _SC_THREADS
* _POSIX_TIMEOUTS _SC_TIMEOUTS
* _POSIX_TIMERS _SC_TIMERS
* _POSIX_TRACE _SC_TRACE
* _POSIX_TRACE_EVENT_FILTER _SC_TRACE_EVENT_FILTER
* _POSIX_TRACE_EVENT_NAME_MAX _SC_TRACE_EVENT_NAME_MAX
* _POSIX_TRACE_INHERIT _SC_TRACE_INHERIT
* _POSIX_TRACE_LOG _SC_TRACE_LOG
* _POSIX_TRACE_NAME_MAX _SC_TRACE_NAME_MAX
* _POSIX_TRACE_SYS_MAX _SC_TRACE_SYS_MAX
* _POSIX_TRACE_USER_EVENT_MAX _SC_TRACE_USER_EVENT_MAX
* _POSIX_TYPED_MEMORY_OBJECTS _SC_TYPED_MEMORY_OBJECTS
* _POSIX_VERSION _SC_VERSION
* _POSIX_V6_ILP32_OFF32 _SC_V6_ILP32_OFF32
* _POSIX_V6_ILP32_OFFBIG _SC_V6_ILP32_OFFBIG
* _POSIX_V6_LP64_OFF64 _SC_V6_LP64_OFF64
* _POSIX_V6_LPBIG_OFFBIG _SC_V6_LPBIG_OFFBIG
* _POSIX2_C_BIND _SC_2_C_BIND
* _POSIX2_C_DEV _SC_2_C_DEV
* _POSIX2_CHAR_TERM _SC_2_CHAR_TERM
* _POSIX2_FORT_DEV _SC_2_FORT_DEV
* _POSIX2_FORT_RUN _SC_2_FORT_RUN
* _POSIX2_LOCALEDEF _SC_2_LOCALEDEF
* _POSIX2_PBS _SC_2_PBS
* _POSIX2_PBS_ACCOUNTING _SC_2_PBS_ACCOUNTING
* _POSIX2_PBS_CHECKPOINT _SC_2_PBS_CHECKPOINT
* _POSIX2_PBS_LOCATE _SC_2_PBS_LOCATE
* _POSIX2_PBS_MESSAGE _SC_2_PBS_MESSAGE
* _POSIX2_PBS_TRACK _SC_2_PBS_TRACK
* _POSIX2_SW_DEV _SC_2_SW_DEV
* _POSIX2_UPE _SC_2_UPE
* _POSIX2_VERSION _SC_2_VERSION
* {PAGE_SIZE} _SC_PAGE_SIZE
* {PAGESIZE} _SC_PAGESIZE
* {PTHREAD_DESTRUCTOR_ITERATIONS} _SC_THREAD_DESTRUCTOR_ITERATIONS
* {PTHREAD_KEYS_MAX} _SC_THREAD_KEYS_MAX
* {PTHREAD_STACK_MIN} _SC_THREAD_STACK_MIN
* {PTHREAD_THREADS_MAX} _SC_THREAD_THREADS_MAX
* {RE_DUP_MAX} _SC_RE_DUP_MAX
* {RTSIG_MAX} _SC_RTSIG_MAX
* {SEM_NSEMS_MAX} _SC_SEM_NSEMS_MAX
* {SEM_VALUE_MAX} _SC_SEM_VALUE_MAX
* {SIGQUEUE_MAX} _SC_SIGQUEUE_MAX
* {STREAM_MAX} _SC_STREAM_MAX
* {SYMLOOP_MAX} _SC_SYMLOOP_MAX
* {TIMER_MAX} _SC_TIMER_MAX
* {TTY_NAME_MAX} _SC_TTY_NAME_MAX
* {TZNAME_MAX} _SC_TZNAME_MAX
* _XBS5_ILP32_OFF32 (LEGACY) _SC_XBS5_ILP32_OFF32 (LEGACY)
* _XBS5_ILP32_OFFBIG (LEGACY) _SC_XBS5_ILP32_OFFBIG (LEGACY)
* _XBS5_LP64_OFF64 (LEGACY) _SC_XBS5_LP64_OFF64 (LEGACY)
* _XBS5_LPBIG_OFFBIG (LEGACY) _SC_XBS5_LPBIG_OFFBIG (LEGACY)
* _XOPEN_CRYPT _SC_XOPEN_CRYPT
* _XOPEN_ENH_I18N _SC_XOPEN_ENH_I18N
* _XOPEN_LEGACY _SC_XOPEN_LEGACY
* _XOPEN_REALTIME _SC_XOPEN_REALTIME
* _XOPEN_REALTIME_THREADS _SC_XOPEN_REALTIME_THREADS
* _XOPEN_SHM _SC_XOPEN_SHM
* _XOPEN_STREAMS _SC_XOPEN_STREAMS
* _XOPEN_UNIX _SC_XOPEN_UNIX
* _XOPEN_VERSION _SC_XOPEN_VERSION
* {MQ_OPEN_MAX} _SC_MQ_OPEN_MAX
* {MQ_PRIO_MAX} _SC_MQ_PRIO_MAX
* {OPEN_MAX} _SC_OPEN_MAX
* _POSIX_ADVISORY_INFO _SC_ADVISORY_INFO
* _POSIX_BARRIERS _SC_BARRIERS
* _POSIX_ASYNCHRONOUS_IO _SC_ASYNCHRONOUS_IO
* _POSIX_CLOCK_SELECTION _SC_CLOCK_SELECTION
* _POSIX_CPUTIME _SC_CPUTIME
* _POSIX_FSYNC _SC_FSYNC
* _POSIX_IPV6 _SC_IPV6
* _POSIX_JOB_CONTROL _SC_JOB_CONTROL
* _POSIX_MAPPED_FILES _SC_MAPPED_FILES
* _POSIX_MEMLOCK _SC_MEMLOCK
* _POSIX_MEMLOCK_RANGE _SC_MEMLOCK_RANGE
* _POSIX_MEMORY_PROTECTION _SC_MEMORY_PROTECTION
* _POSIX_MESSAGE_PASSING _SC_MESSAGE_PASSING
* _POSIX_MONOTONIC_CLOCK _SC_MONOTONIC_CLOCK
* _POSIX_PRIORITIZED_IO _SC_PRIORITIZED_IO
* _POSIX_PRIORITY_SCHEDULING _SC_PRIORITY_SCHEDULING
* _POSIX_RAW_SOCKETS _SC_RAW_SOCKETS
* _POSIX_READER_WRITER_LOCKS _SC_READER_WRITER_LOCKS
* _POSIX_REALTIME_SIGNALS _SC_REALTIME_SIGNALS
* _POSIX_REGEXP _SC_REGEXP
* _POSIX_SAVED_IDS _SC_SAVED_IDS
* _POSIX_SEMAPHORES _SC_SEMAPHORES
* _POSIX_SHARED_MEMORY_OBJECTS _SC_SHARED_MEMORY_OBJECTS
* _POSIX_SHELL _SC_SHELL
* _POSIX_SPAWN _SC_SPAWN
* _POSIX_SPIN_LOCKS _SC_SPIN_LOCKS
* _POSIX_SPORADIC_SERVER _SC_SPORADIC_SERVER
* _POSIX_SS_REPL_MAX _SC_SS_REPL_MAX
* _POSIX_SYNCHRONIZED_IO _SC_SYNCHRONIZED_IO
* _POSIX_THREAD_ATTR_STACKADDR _SC_THREAD_ATTR_STACKADDR
* _POSIX_THREAD_ATTR_STACKSIZE _SC_THREAD_ATTR_STACKSIZE
* _POSIX_THREAD_CPUTIME _SC_THREAD_CPUTIME
* _POSIX_THREAD_PRIO_INHERIT _SC_THREAD_PRIO_INHERIT
* _POSIX_THREAD_PRIO_PROTECT _SC_THREAD_PRIO_PROTECT
* _POSIX_THREAD_PRIORITY_SCHEDULING _SC_THREAD_PRIORITY_SCHEDULING
* _POSIX_THREAD_PROCESS_SHARED _SC_THREAD_PROCESS_SHARED
* _POSIX_THREAD_SAFE_FUNCTIONS _SC_THREAD_SAFE_FUNCTIONS
* _POSIX_THREAD_SPORADIC_SERVER _SC_THREAD_SPORADIC_SERVER
* _POSIX_THREADS _SC_THREADS
* _POSIX_TIMEOUTS _SC_TIMEOUTS
* _POSIX_TIMERS _SC_TIMERS
* _POSIX_TRACE _SC_TRACE
* _POSIX_TRACE_EVENT_FILTER _SC_TRACE_EVENT_FILTER
* _POSIX_TRACE_EVENT_NAME_MAX _SC_TRACE_EVENT_NAME_MAX
* _POSIX_TRACE_INHERIT _SC_TRACE_INHERIT
* _POSIX_TRACE_LOG _SC_TRACE_LOG
* _POSIX_TRACE_NAME_MAX _SC_TRACE_NAME_MAX
* _POSIX_TRACE_SYS_MAX _SC_TRACE_SYS_MAX
* _POSIX_TRACE_USER_EVENT_MAX _SC_TRACE_USER_EVENT_MAX
* _POSIX_TYPED_MEMORY_OBJECTS _SC_TYPED_MEMORY_OBJECTS
* _POSIX_VERSION _SC_VERSION
* _POSIX_V6_ILP32_OFF32 _SC_V6_ILP32_OFF32
* _POSIX_V6_ILP32_OFFBIG _SC_V6_ILP32_OFFBIG
* _POSIX_V6_LP64_OFF64 _SC_V6_LP64_OFF64
* _POSIX_V6_LPBIG_OFFBIG _SC_V6_LPBIG_OFFBIG
* _POSIX2_C_BIND _SC_2_C_BIND
* _POSIX2_C_DEV _SC_2_C_DEV
* _POSIX2_CHAR_TERM _SC_2_CHAR_TERM
* _POSIX2_FORT_DEV _SC_2_FORT_DEV
* _POSIX2_FORT_RUN _SC_2_FORT_RUN
* _POSIX2_LOCALEDEF _SC_2_LOCALEDEF
* _POSIX2_PBS _SC_2_PBS
* _POSIX2_PBS_ACCOUNTING _SC_2_PBS_ACCOUNTING
* _POSIX2_PBS_CHECKPOINT _SC_2_PBS_CHECKPOINT
* _POSIX2_PBS_LOCATE _SC_2_PBS_LOCATE
* _POSIX2_PBS_MESSAGE _SC_2_PBS_MESSAGE
* _POSIX2_PBS_TRACK _SC_2_PBS_TRACK
* _POSIX2_SW_DEV _SC_2_SW_DEV
* _POSIX2_UPE _SC_2_UPE
* _POSIX2_VERSION _SC_2_VERSION
* {PAGE_SIZE} _SC_PAGE_SIZE
* {PAGESIZE} _SC_PAGESIZE
* _POSIX_THREAD_DESTRUCTOR_ITERATIONS _SC_THREAD_DESTRUCTOR_ITERATIONS
* _POSIX_THREAD_KEYS_MAX _SC_THREAD_KEYS_MAX
* {PTHREAD_STACK_MIN} _SC_THREAD_STACK_MIN
* _POSIX_THREAD_THREADS_MAX _SC_THREAD_THREADS_MAX
* {RE_DUP_MAX} _SC_RE_DUP_MAX
* {RTSIG_MAX} _SC_RTSIG_MAX
* {SEM_NSEMS_MAX} _SC_SEM_NSEMS_MAX
* {SEM_VALUE_MAX} _SC_SEM_VALUE_MAX
* {SIGQUEUE_MAX} _SC_SIGQUEUE_MAX
* {STREAM_MAX} _SC_STREAM_MAX
* {SYMLOOP_MAX} _SC_SYMLOOP_MAX
* {TIMER_MAX} _SC_TIMER_MAX
* {TTY_NAME_MAX} _SC_TTY_NAME_MAX
* {TZNAME_MAX} _SC_TZNAME_MAX
* _XBS5_ILP32_OFF32 (LEGACY) _SC_XBS5_ILP32_OFF32 (LEGACY)
* _XBS5_ILP32_OFFBIG (LEGACY) _SC_XBS5_ILP32_OFFBIG (LEGACY)
* _XBS5_LP64_OFF64 (LEGACY) _SC_XBS5_LP64_OFF64 (LEGACY)
* _XBS5_LPBIG_OFFBIG (LEGACY) _SC_XBS5_LPBIG_OFFBIG (LEGACY)
* _XOPEN_CRYPT _SC_XOPEN_CRYPT
* _XOPEN_ENH_I18N _SC_XOPEN_ENH_I18N
* _XOPEN_LEGACY _SC_XOPEN_LEGACY
* _XOPEN_REALTIME _SC_XOPEN_REALTIME
* _XOPEN_REALTIME_THREADS _SC_XOPEN_REALTIME_THREADS
* _XOPEN_SHM _SC_XOPEN_SHM
* _XOPEN_STREAMS _SC_XOPEN_STREAMS
* _XOPEN_UNIX _SC_XOPEN_UNIX
* _XOPEN_VERSION _SC_XOPEN_VERSION
*
* Returned Value:
* If name is an invalid value, sysconf() will return -1 and set errno to