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/*
* 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();
}
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