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usr / share / systemtap / tapset / linux / x86_64 /

📁 ..
📄 aux_syscalls.stp(3.58 KB)
📄 sysc_arch_prctl.stp(3.21 KB)
📄 sysc_compat_execve.stp(1.59 KB)
📄 sysc_compat_fadvise64.stp(6.92 KB)
📄 sysc_compat_fallocate.stp(3.54 KB)
📄 sysc_compat_ftruncate64.stp(3.34 KB)
📄 sysc_compat_lookup_dcookie.stp(3.72 KB)
📄 sysc_compat_readahead.stp(3.18 KB)
📄 sysc_compat_truncate64.stp(3.45 KB)
📄 sysc_execve.stp(1.62 KB)
📄 sysc_get_thread_area.stp(3.18 KB)
📄 sysc_iopl.stp(2.27 KB)
📄 sysc_mmap.stp(4.04 KB)
📄 sysc_mmap2.stp(2.62 KB)
📄 sysc_pipe32.stp(1.54 KB)
📄 sysc_set_thread_area.stp(3.13 KB)
📄 sysc_sigaltstack.stp(2.24 KB)
📄 sysc_sysctl32.stp(1.12 KB)
📄 sysc_vm86_warning.stp(1.17 KB)
📄 syscall_num.stp(53.77 KB)

Editing: sysc_pipe32.stp

# pipe _______________________________________________________
#
# long sys32_pipe(int __user *fd)
# Not available in newer kernels.

@define _SYSCALL_PIPE32_NAME
%(
	name = "pipe"
%)

probe syscall.pipe32 = dw_syscall.pipe32 !, nd_syscall.pipe32 ? {}
probe syscall.pipe32.return = dw_syscall.pipe32.return !, nd_syscall.pipe32.return ? {}

# dw_pipe32 _____________________________________________________

probe dw_syscall.pipe32 = kernel.function("sys32_pipe")?
{
	@_SYSCALL_PIPE32_NAME
	flags = 0;
	flag_str = ""
	if (@defined($fd)) {
		fildes_uaddr = $fd
		if (fildes_uaddr == 0) {
			pipe0 = 0;
			pipe1 = 0;
			argstr = "NULL"
		} else {
			pipe0 = user_int(&$fd[0]);
			pipe1 = user_int(&$fd[1]);
			argstr = sprintf("[%d, %d]", pipe0, pipe1);
		}
	} else {
		fildes_uaddr = 0;
		pipe0 = 0;
		pipe1 = 0;
		argstr = "[0, 0]";
	}
}
probe dw_syscall.pipe32.return = kernel.function("sys32_pipe").return?
{
	@_SYSCALL_PIPE32_NAME
	flags = 0;
	if (@defined(@entry($fd))) {
		fildes_uaddr = @entry($fd)
		if (fildes_uaddr == 0) {
			pipe0 = 0;
			pipe1 = 0;
		} else {
			pipe0 = @entry(user_int(&$fd[0]));
			pipe1 = @entry(user_int(&$fd[1]));
		}
	} else {
		fildes_uaddr = 0;
		pipe0 = 0;
		pipe1 = 0;
	}
	@SYSC_RETVALSTR($return)
}

# nd_pipe32 _____________________________________________________

probe nd_syscall.pipe32 = kprobe.function("sys32_pipe")?
{
	@_SYSCALL_PIPE32_NAME
	asmlinkage()
	argstr = sprintf("%p", pointer_arg(1))
}
probe nd_syscall.pipe32.return = kprobe.function("sys32_pipe").return?
{
	@_SYSCALL_PIPE32_NAME
	@SYSC_RETVALSTR(returnval())
}

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Editing: sysc_pipe32.stp

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