getsysinfo(GSI_BOOTEDFILE,...) rehosting

I am rehosting a program from tru64 to linux. I can't find a replacement for getsysinfo(GSI_BOOTEDFILE,...) in C man getsysinfo

How can I get the name of the file from which the currently running kernel was booted under S开发者_JS百科USE11 in C? I am out of solution. Thank you

---

There is /proc/version and /proc/cmdline which will tell you the version information of the running kernel and what options were passed to it on its command-line.

Between these two files you should be able to figure out which kernel is running, unless for some reason you have several kernel files of the same version lying about.

---

There's no general way of doing this, and it's not always possible -- for instance, if the machine is PXE booted, or if it's an embedded system, the kernel may not exist on disk at all. On an x86 system, you can make a guess by attempting to parse the lilo/grub config, but this won't give reliable results.