diff options
Diffstat (limited to 'toolchain/musl/patches/050-add-pthread_setname_np.patch')
| -rw-r--r-- | toolchain/musl/patches/050-add-pthread_setname_np.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/toolchain/musl/patches/050-add-pthread_setname_np.patch b/toolchain/musl/patches/050-add-pthread_setname_np.patch new file mode 100644 index 0000000000..9d641a296b --- /dev/null +++ b/toolchain/musl/patches/050-add-pthread_setname_np.patch @@ -0,0 +1,58 @@ +From 8fb28b0b3e7a5e958fb844722a4b2ef9bc244af1 Mon Sep 17 00:00:00 2001 +From: Felix Janda <felix.janda@posteo.de> +Date: Fri, 16 Sep 2016 20:54:00 -0400 +Subject: add pthread_setname_np + +the thread name is displayed by gdb's "info threads". +--- + include/pthread.h | 1 + + src/thread/pthread_setname_np.c | 26 ++++++++++++++++++++++++++ + 2 files changed, 27 insertions(+) + create mode 100644 src/thread/pthread_setname_np.c + +diff --git a/include/pthread.h b/include/pthread.h +index 3d2e0c4..94ef919 100644 +--- a/include/pthread.h ++++ b/include/pthread.h +@@ -214,6 +214,7 @@ struct cpu_set_t; + int pthread_getaffinity_np(pthread_t, size_t, struct cpu_set_t *); + int pthread_setaffinity_np(pthread_t, size_t, const struct cpu_set_t *); + int pthread_getattr_np(pthread_t, pthread_attr_t *); ++int pthread_setname_np(pthread_t, const char *); + int pthread_tryjoin_np(pthread_t, void **); + int pthread_timedjoin_np(pthread_t, void **, const struct timespec *); + #endif +diff --git a/src/thread/pthread_setname_np.c b/src/thread/pthread_setname_np.c +new file mode 100644 +index 0000000..82d35e1 +--- /dev/null ++++ b/src/thread/pthread_setname_np.c +@@ -0,0 +1,26 @@ ++#define _GNU_SOURCE ++#include <fcntl.h> ++#include <string.h> ++#include <unistd.h> ++#include <sys/prctl.h> ++ ++#include "pthread_impl.h" ++ ++int pthread_setname_np(pthread_t thread, const char *name) ++{ ++ int fd, cs, status = 0; ++ char f[sizeof "/proc/self/task//comm" + 3*sizeof(int)]; ++ size_t len; ++ ++ if ((len = strnlen(name, 16)) > 15) return ERANGE; ++ ++ if (thread == pthread_self()) ++ return prctl(PR_SET_NAME, (unsigned long)name, 0UL, 0UL, 0UL) ? errno : 0; ++ ++ snprintf(f, sizeof f, "/proc/self/task/%d/comm", thread->tid); ++ pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs); ++ if ((fd = open(f, O_WRONLY)) < 0 || write(fd, name, len) < 0) status = errno; ++ if (fd >= 0) close(fd); ++ pthread_setcancelstate(cs, 0); ++ return status; ++} +-- +cgit v0.11.2 |