lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-08-05 19:35:52 +03:00
Code Activity

nptl: Move the internal thread priority protection symbols into libc

Browse Source 
This is a prerequisite for moving the mutex implementation.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Florian Weimer
2021-04-21 19:49:51 +02:00
parent eb29dcde31
commit 798cacde76
4 changed files with 21 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
nptl/Makefile
View File

@@ -94,6 +94,7 @@ routines = \
pthread_setschedparam \ pthread_setschedparam \
pthread_setspecific \ pthread_setspecific \
pthread_sigmask \ pthread_sigmask \
tpp \
unwind \ unwind \
shared-only-routines = forward shared-only-routines = forward
@@ -214,7 +215,6 @@ libpthread-routines = \
sem_timedwait \ sem_timedwait \
sem_unlink \ sem_unlink \
sem_wait \ sem_wait \
tpp \
vars \ vars \
version \ version \

5
nptl/Versions
View File

@@ -120,6 +120,7 @@ libc {
GLIBC_PRIVATE { GLIBC_PRIVATE {
__futex_abstimed_wait64; __futex_abstimed_wait64;
__futex_abstimed_wait_cancelable64; __futex_abstimed_wait_cancelable64;
__init_sched_fifo_prio;
__libc_alloca_cutoff; __libc_alloca_cutoff;
__libc_cleanup_pop_restore; __libc_cleanup_pop_restore;
__libc_cleanup_push_defer; __libc_cleanup_push_defer;
@@ -143,13 +144,17 @@ libc {
__pthread_cleanup_upto; __pthread_cleanup_upto;
__pthread_cond_destroy; # Used by the C11 threads. __pthread_cond_destroy; # Used by the C11 threads.
__pthread_cond_init; # Used by the C11 threads. __pthread_cond_init; # Used by the C11 threads.
__pthread_current_priority;
__pthread_exit; __pthread_exit;
__pthread_force_elision; __pthread_force_elision;
__pthread_getattr_default_np; __pthread_getattr_default_np;
__pthread_key_delete; __pthread_key_delete;
__pthread_keys; __pthread_keys;
__pthread_setcancelstate; __pthread_setcancelstate;
__pthread_tpp_change_priority;
__pthread_unwind; __pthread_unwind;
__sched_fifo_max_prio;
__sched_fifo_min_prio;
} }
} }

16
nptl/pthreadP.h
View File

@@ -231,12 +231,16 @@ rtld_hidden_proto (__nptl_set_robust_list_avail)
#endif #endif
/* Thread Priority Protection. */ /* Thread Priority Protection. */
extern int __sched_fifo_min_prio attribute_hidden; extern int __sched_fifo_min_prio;
extern int __sched_fifo_max_prio attribute_hidden; libc_hidden_proto (__sched_fifo_min_prio)
extern void __init_sched_fifo_prio (void) attribute_hidden; extern int __sched_fifo_max_prio;
extern int __pthread_tpp_change_priority (int prev_prio, int new_prio) libc_hidden_proto (__sched_fifo_max_prio)
attribute_hidden; extern void __init_sched_fifo_prio (void);
extern int __pthread_current_priority (void) attribute_hidden; libc_hidden_proto (__init_sched_fifo_prio)
extern int __pthread_tpp_change_priority (int prev_prio, int new_prio);
libc_hidden_proto (__pthread_tpp_change_priority)
extern int __pthread_current_priority (void);
libc_hidden_proto (__pthread_current_priority)
/* The library can run in debugging mode where it performs a lot more /* The library can run in debugging mode where it performs a lot more
tests. */ tests. */

6
nptl/tpp.c
View File

@@ -25,9 +25,10 @@
#include <stdlib.h> #include <stdlib.h>
#include <atomic.h> #include <atomic.h>
int __sched_fifo_min_prio = -1; int __sched_fifo_min_prio = -1;
libc_hidden_data_def (__sched_fifo_min_prio)
int __sched_fifo_max_prio = -1; int __sched_fifo_max_prio = -1;
libc_hidden_data_def (__sched_fifo_max_prio)
/* We only want to initialize __sched_fifo_min_prio and __sched_fifo_max_prio /* We only want to initialize __sched_fifo_min_prio and __sched_fifo_max_prio
once. The standard solution would be similar to pthread_once, but then once. The standard solution would be similar to pthread_once, but then
@@ -47,6 +48,7 @@ __init_sched_fifo_prio (void)
atomic_store_relaxed (&__sched_fifo_min_prio, atomic_store_relaxed (&__sched_fifo_min_prio,
__sched_get_priority_min (SCHED_FIFO)); __sched_get_priority_min (SCHED_FIFO));
} }
libc_hidden_def (__init_sched_fifo_prio)
int int
__pthread_tpp_change_priority (int previous_prio, int new_prio) __pthread_tpp_change_priority (int previous_prio, int new_prio)
@@ -155,6 +157,7 @@ __pthread_tpp_change_priority (int previous_prio, int new_prio)
return result; return result;
} }
libc_hidden_def (__pthread_tpp_change_priority)
int int
__pthread_current_priority (void) __pthread_current_priority (void)
@@ -193,3 +196,4 @@ __pthread_current_priority (void)
return result; return result;
} }
libc_hidden_def (__pthread_current_priority)