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RelayFS does not appear to be in this kernel -> Pass 4: compilation failed

From: Tomasz Chmielewski <mangoo at wpkg dot org>
To: systemtap at sourceware dot org
Date: Sat, 14 Apr 2007 15:34:09 +0200
Subject: RelayFS does not appear to be in this kernel -> Pass 4: compilation failed

I'm trying to use SystemTap.

I followed the instructions here:

http://sourceware.org/systemtap/wiki/SystemTapWithSelfBuiltKernel

I built the kernel with these options:

Kernel hacking  --->
    [*] Kernel debugging
        [*]   Compile the kernel with debug info
Instrumentation Support  --->
    [*] Kprobes (EXPERIMENTAL)

And also, with CONFIG_RELAY, despite the documentation says it's optional.

General setup  --->
    [*] Kernel->user space relay support (formerly relayfs)

Now, I try to run a simple "hello world", but it fails with:

/usr/local/share/systemtap/runtime/transport/relayfs.c:17:2: error: #error "RelayFS does not appear to be in this kernel!" /usr/local/share/systemtap/runtime/transport/relayfs.c:23:30: error: linux/relayfs_fs.h: No such file or directory cc1: warnings being treated as errors

What am I missing? I'm running 2.6.20.4 kernel.

# stap -vve 'probe begin { log("hello world") exit () }' SystemTap translator/driver (version 0.5.14 built 2007-04-14) (Using Red Hat elfutils 0.125 libraries.) Copyright (C) 2005-2007 Red Hat, Inc. and others This is free software; see the source for copying conditions. Created temporary directory "/root/tmp/stap2lbmof" Searched '/usr/local/share/systemtap/tapset/2.6.20.4-4mdvtmbcustom/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/2.6.20.4-4mdvtmbcustom/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/2.6.20.4/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/2.6.20.4/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/2.6.20/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/2.6.20/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/2.6/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/2.6/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/i686/*.stp', match count 1 Searched '/usr/local/share/systemtap/tapset/*.stp', match count 34 Searched '/usr/local/share/systemtap/tapset/LKET/2.6.20.4-4mdvtmbcustom/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/2.6.20.4-4mdvtmbcustom/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/2.6.20.4/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/2.6.20.4/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/2.6.20/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/2.6.20/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/2.6/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/2.6/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/i686/*.stp', match count 0 Searched '/usr/local/share/systemtap/tapset/LKET/*.stp', match count 19 Pass 1: parsed user script and 54 library script(s) in 300usr/10sys/458real ms. Pass 2: analyzed script: 1 probe(s), 2 function(s), 0 embed(s), 0 global(s) in 10usr/0sys/6real ms. Pass 3: translated to C into "/root/tmp/stap2lbmof/stap_c0214b52f983948bad6db7c010ab7cb9_341.c" in 0usr/0sys/0real ms. Running make -C "/lib/modules/2.6.20.4-4mdvtmbcustom/build" M="/root/tmp/stap2lbmof" modules V=1 make: Entering directory `/usr/src/2.6.20.4-tmb-4mdv' test -e include/linux/autoconf.h -a -e include/config/auto.conf || ( \ echo; \ echo " ERROR: Kernel configuration is invalid."; \ echo " include/linux/autoconf.h or include/config/auto.conf are missing."; \ echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ echo; \ /bin/false) mkdir -p /root/tmp/stap2lbmof/.tmp_versions rm -f /root/tmp/stap2lbmof/.tmp_versions/* make -f scripts/Makefile.build obj=/root/tmp/stap2lbmof gcc -m32 -Wp,-MD,/root/tmp/stap2lbmof/.stap_c0214b52f983948bad6db7c010ab7cb9_341.o.d -nostdinc -isystem /usr/lib/gcc/i586-mandriva-linux-gnu/4.1.2/include -D__KERNEL__ -Iinclude -include include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Os -pipe -msoft-float -mregparm=3 -mpreferred-stack-boundary=2 -march=i586 -mtune=generic -ffreestanding -maccumulate-outgoing-args -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -Iinclude/asm-i386/mach-default -fomit-frame-pointer -g -fno-stack-protector -Wdeclaration-after-statement -Wno-pointer-sign -DSTAPCONF_HRTIMER_REL -freorder-blocks -Wno-unused -Werror -I"/usr/local/share/systemtap/runtime" -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(stap_c0214b52f983948bad6db7c010ab7cb9_341)"

-D"KBUILD_MODNAME=KBUILD_STR(stap_c0214b52f983948bad6db7c010ab7cb9_341)" -c -o /root/tmp/stap2lbmof/.tmp_stap_c0214b52f983948bad6db7c010ab7cb9_341.o /root/tmp/stap2lbmof/stap_c0214b52f983948bad6db7c010ab7cb9_341.c In file included from /usr/local/share/systemtap/runtime/transport/transport.c:24, from /usr/local/share/systemtap/runtime/print.c:17, from /usr/local/share/systemtap/runtime/runtime.h:81, from /root/tmp/stap2lbmof/stap_c0214b52f983948bad6db7c010ab7cb9_341.c:42: /usr/local/share/systemtap/runtime/transport/relayfs.c:17:2: error: #error "RelayFS does not appear to be in this kernel!" /usr/local/share/systemtap/runtime/transport/relayfs.c:23:30: error: linux/relayfs_fs.h: No such file or directory cc1: warnings being treated as errors In file included from /usr/local/share/systemtap/runtime/transport/transport.c:24, from /usr/local/share/systemtap/runtime/print.c:17, from /usr/local/share/systemtap/runtime/runtime.h:81, from /root/tmp/stap2lbmof/stap_c0214b52f983948bad6db7c010ab7cb9_341.c:42: /usr/local/share/systemtap/runtime/transport/relayfs.c:35: warning: 'struct rchan_buf' declared inside parameter list /usr/local/share/systemtap/runtime/transport/relayfs.c:35: warning: its scope is only this definition or declaration, which is probably not what you want /usr/local/share/systemtap/runtime/transport/relayfs.c: In function '_stp_subbuf_start': /usr/local/share/systemtap/runtime/transport/relayfs.c:37: error: dereferencing pointer to incomplete type /usr/local/share/systemtap/runtime/transport/relayfs.c: At top level: /usr/local/share/systemtap/runtime/transport/relayfs.c:49: warning: 'struct rchan_buf' declared inside parameter list /usr/local/share/systemtap/runtime/transport/relayfs.c: In function '_stp_buf_full': /usr/local/share/systemtap/runtime/transport/relayfs.c:51: error: dereferencing pointer to incomplete type /usr/local/share/systemtap/runtime/transport/relayfs.c: At top level: /usr/local/share/systemtap/runtime/transport/relayfs.c:55: error: variable 'stp_rchan_callbacks' has initializer but incomplete type /usr/local/share/systemtap/runtime/transport/relayfs.c:57: error: unknown field 'subbuf_start' specified in initializer /usr/local/share/systemtap/runtime/transport/relayfs.c:57: warning: excess elements in struct initializer /usr/local/share/systemtap/runtime/transport/relayfs.c:57: warning: (near initialization for 'stp_rchan_callbacks') /usr/local/share/systemtap/runtime/transport/relayfs.c:58: error: unknown field 'buf_full' specified in initializer /usr/local/share/systemtap/runtime/transport/relayfs.c:58: warning: excess elements in struct initializer /usr/local/share/systemtap/runtime/transport/relayfs.c:58: warning: (near initialization for 'stp_rchan_callbacks') /usr/local/share/systemtap/runtime/transport/relayfs.c: In function '_stp_remove_relay_dir': /usr/local/share/systemtap/runtime/transport/relayfs.c:65: warning: implicit declaration of function 'relayfs_remove_dir' /usr/local/share/systemtap/runtime/transport/relayfs.c: In function 'utt_trace_setup': /usr/local/share/systemtap/runtime/transport/relayfs.c:92: warning: implicit declaration of function 'relayfs_create_dir' /usr/local/share/systemtap/runtime/transport/relayfs.c:92: warning: assignment makes pointer from integer without a cast /usr/local/share/systemtap/runtime/transport/relayfs.c:98: warning: implicit declaration of function 'relay_open' /usr/local/share/systemtap/runtime/transport/relayfs.c:98: warning: assignment makes pointer from integer without a cast /usr/local/share/systemtap/runtime/transport/relayfs.c:102: error: dereferencing pointer to incomplete type /usr/local/share/systemtap/runtime/transport/relayfs.c: In function 'utt_trace_startstop': /usr/local/share/systemtap/runtime/transport/relayfs.c:141: warning: implicit declaration of function 'relay_flush' /usr/local/share/systemtap/runtime/transport/relayfs.c: In function 'utt_trace_remove': /usr/local/share/systemtap/runtime/transport/relayfs.c:154: warning: implicit declaration of function 'relay_close' In file included from /usr/local/share/systemtap/runtime/print.c:17, from /usr/local/share/systemtap/runtime/runtime.h:81, from /root/tmp/stap2lbmof/stap_c0214b52f983948bad6db7c010ab7cb9_341.c:42: /usr/local/share/systemtap/runtime/transport/transport.c: In function '_stp_lock_debugfs': /usr/local/share/systemtap/runtime/transport/transport.c:302: warning: assignment makes pointer from integer without a cast /usr/local/share/systemtap/runtime/transport/transport.c: In function '_stp_get_root_dir': /usr/local/share/systemtap/runtime/transport/transport.c:351: warning: assignment makes pointer from integer without a cast make[1]: *** [/root/tmp/stap2lbmof/stap_c0214b52f983948bad6db7c010ab7cb9_341.o] Error 1 make: *** [_module_/root/tmp/stap2lbmof] Error 2 make: Leaving directory `/usr/src/2.6.20.4-tmb-4mdv' Pass 4: compiled C into "stap_c0214b52f983948bad6db7c010ab7cb9_341.ko" in 1100usr/250sys/1738real ms. Pass 4: compilation failed. Try again with more '-v' (verbose) options. Running rm -rf /root/tmp/stap2lbmof


--
Tomasz Chmielewski
http://wpkg.org

Follow-Ups:
- Re: RelayFS does not appear to be in this kernel -> Pass 4: compilation failed
  - From: Martin Hunt

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