/*
* Returns the contents of the current command line to be used with
* --reuse-cmdline option. The function gets called from architecture specific
* code. If we load a panic kernel, that function will strip the
* "crashkernel=" option because it does not make sense that the crashkernel
* reserves memory for a crashkernel (well, it would not boot since the
* amount is exactly the same as the crashkernel has overall memory). Also,
* remove the BOOT_IMAGE from lilo (and others) since that doesn't make
* sense here any more. The kernel could be different even if we reuse the
* commandline.
*
* The function returns dynamically allocated memory.
*/
char *get_command_line(void)
{
FILE *fp;
size_t len;
char *line = NULL;
fp = fopen("/proc/cmdline", "r");
if (!fp)
die("Could not read /proc/cmdline.");
// getline(&line, &len, fp);
line = fgetln(fp, &len);
fclose(fp);
if (line) {
/* strip newline */
*(line + strlen(line) - 1) = 0;
remove_parameter(line, "BOOT_IMAGE");
if (kexec_flags & KEXEC_ON_CRASH)
remove_parameter(line, "crashkernel");
} else
line = strdup("");
return line;
}
generic_device::~generic_device()
{
remove_parameter();
m_protocol->stop();
{
write_lock_t lock{m_mutex};
m_children.clear();
}
m_protocol.reset();
}
