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authorMattias Andrée <maandree@member.fsf.org>2015-12-29 21:56:27 +0100
committerMattias Andrée <maandree@member.fsf.org>2015-12-29 21:57:13 +0100
commit5145c11fd8fe38162ae85e5ab888553c309eedf8 (patch)
treeea63e4155f47110e63e715653d23bb9094190e1e
parentuse pthread_sigmask, not sigprocmask (diff)
downloadslibc-5145c11fd8fe38162ae85e5ab888553c309eedf8.tar.gz
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halt + hcf
Signed-off-by: Mattias Andrée <maandree@member.fsf.org>
Diffstat (limited to '')
-rw-r--r--include/unistd.h27
-rw-r--r--src/unistd/halt.c36
-rw-r--r--src/unistd/hcf.c37
3 files changed, 100 insertions, 0 deletions
diff --git a/include/unistd.h b/include/unistd.h
index dc8e5d5..bb077c1 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -1354,6 +1354,33 @@ ssize_t pwriten(int, const void*, size_t);
#endif
+#if defined(__SLIBC_SOURCE)
+/**
+ * Halt the process in definitely.
+ * This function never returns.
+ *
+ * This is a slibc extension.
+ *
+ * @etymology (Halt)!
+ *
+ * @since Always.
+ */
+__noreturn void halt(void);
+
+/**
+ * Halt and catch fire!
+ * This function never returns.
+ *
+ * This is a slibc extension.
+ *
+ * @etymology (H)alt and (c)atch (f)rie!
+ *
+ * @since Always.
+ */
+__noreturn void hcf(void);
+#endif
+
+
#endif
diff --git a/src/unistd/halt.c b/src/unistd/halt.c
new file mode 100644
index 0000000..855584f
--- /dev/null
+++ b/src/unistd/halt.c
@@ -0,0 +1,36 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <unistd.h>
+
+
+
+/**
+ * Halt the process in definitely.
+ * This function never returns.
+ *
+ * This is a slibc extension.
+ *
+ * @etymology (Halt)!
+ *
+ * @since Always.
+ */
+void halt(void)
+{
+ for (;; pause());
+}
+
diff --git a/src/unistd/hcf.c b/src/unistd/hcf.c
new file mode 100644
index 0000000..160fa63
--- /dev/null
+++ b/src/unistd/hcf.c
@@ -0,0 +1,37 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <unistd.h>
+
+
+
+/**
+ * Halt and catch fire!
+ * This function never returns.
+ *
+ * This is a slibc extension.
+ *
+ * @etymology (H)alt and (c)atch (f)rie!
+ *
+ * @since Always.
+ */
+void hcf(void)
+{
+ catch_fire:
+ goto catch_fire;
+}
+