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Cater for 3-argument version of pthread_setname_np

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Fixes Bug#39363.

* configure.ac: Add check for 3-argument version of
pthread_setname_np.
* src/systhread.c (sys_thread_set_name)
[HAVE_PTHREAD_SETNAME_NP_3ARG]: Call pthread_setname_np with
3 arguments.
This commit is contained in:
Robert Pluim 2020-01-31 10:22:59 +01:00
parent f27187f963
commit 831508422e
2 changed files with 20 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

15
configure.ac
View file

@ -4197,6 +4197,21 @@ if test "$ac_cv_func_pthread_setname_np" = "yes"; then
AC_DEFINE( AC_DEFINE(
HAVE_PTHREAD_SETNAME_NP_1ARG, 1, HAVE_PTHREAD_SETNAME_NP_1ARG, 1,
[Define to 1 if pthread_setname_np takes a single argument.]) [Define to 1 if pthread_setname_np takes a single argument.])
else
AC_CACHE_CHECK(
[whether pthread_setname_np takes three arguments],
[emacs_cv_pthread_setname_np_3arg],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>]],
[[pthread_setname_np (0, "%s", "a");]])],
[emacs_cv_pthread_setname_np_3arg=yes],
[emacs_cv_pthread_setname_np_3arg=no])])
if test "$emacs_cv_pthread_setname_np_3arg" = "yes"; then
AC_DEFINE(
HAVE_PTHREAD_SETNAME_NP_3ARG, 1,
[Define to 1 if pthread_setname_np takes three arguments.])
fi
fi fi
fi fi

8
src/systhread.c
View file

@ -214,11 +214,13 @@ sys_thread_set_name (const char *name)
char p_name[TASK_COMM_LEN]; char p_name[TASK_COMM_LEN];
strncpy (p_name, name, TASK_COMM_LEN - 1); strncpy (p_name, name, TASK_COMM_LEN - 1);
p_name[TASK_COMM_LEN - 1] = '\0'; p_name[TASK_COMM_LEN - 1] = '\0';
#ifdef HAVE_PTHREAD_SETNAME_NP_1ARG # ifdef HAVE_PTHREAD_SETNAME_NP_1ARG
pthread_setname_np (p_name); pthread_setname_np (p_name);
#else # elif defined HAVE_PTHREAD_SETNAME_NP_3ARG
pthread_setname_np (pthread_self (), "%s", p_name);
# else
pthread_setname_np (pthread_self (), p_name); pthread_setname_np (pthread_self (), p_name);
#endif # endif
#endif #endif
} }