1 files changed, 113 insertions, 0 deletions
diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
new file mode 100644
index 0000000..16cd4b2
--- /dev/null
+++ b/sys/kern/kern_proc.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/proc.h>
+#include <sys/cdefs.h>
+#include <sys/vnode.h>
+#include <sys/syscall.h>
+#include <sys/filedesc.h>
+#include <sys/fcntl.h>
+#include <string.h>
+#include <crc32.h>
+
+pid_t
+getpid(void)
+{
+    struct proc *td;
+
+    td = this_td();
+    if (td == NULL) {
+        return -1;
+    }
+
+    return td->pid;
+}
+
+
+pid_t
+getppid(void)
+{
+    struct proc *td;
+
+    td = this_td();
+    if (td == NULL) {
+        return -1;
+    }
+    if (td->parent == NULL) {
+        return -1;
+    }
+
+    return td->parent->pid;
+}
+
+void
+proc_coredump(struct proc *td, uintptr_t fault_addr)
+{
+    struct coredump core;
+    struct sio_txn sio;
+    struct vnode *vp;
+    char pathname[128];
+    int fd;
+
+    snprintf(pathname, sizeof(pathname), "/tmp/core.%d", td->pid);
+    fd = fd_open(pathname, O_RDWR | O_CREAT);
+
+    /* ... Hopefully not */
+    if (__unlikely(fd < 0)) {
+        return;
+    }
+
+    core.pid = td->pid;
+    core.fault_addr = fault_addr;
+    memcpy(&core.tf, &td->tf, sizeof(td->tf));
+
+    core.checksum = crc32(&core, sizeof(core) - sizeof(core.checksum));
+    vp = fd_get(fd)->vp;
+
+    sio.buf = &core;
+    sio.len = sizeof(core);
+    sio.offset = 0;
+
+    /* Write the core file */
+    vfs_vop_write(vp, &sio);
+    fd_close(fd);
+}
+
+scret_t
+sys_getpid(struct syscall_args *scargs)
+{
+    return getpid();
+}
+
+scret_t
+sys_getppid(struct syscall_args *scargs)
+{
+    return getppid();
+}