Public bug reported:
I'm using Ubuntu 17.10, running kernel 4.13.0-38-generic and using
systemtap version 3.1-3. I'm trying to run the following systemtap
script from here:
https://sourceware.org/systemtap/examples/memory/vm.tracepoints.stp
````
#! /usr/bin/env stap
global slabs
probe vm.kmem_cache_alloc {
slabs [execname(), bytes_req]<<<1
}
probe timer.ms(10000)
{
dummy = "";
foreach ([name, bytes] in slabs) {
if (dummy != name)
printf("\nProcess:%s\n", name);
printf("Slab_size:%d\tCount:%d\n", bytes, @count(slabs[name,
bytes]));
dummy = name;
}
delete slabs
printf("\n-------------------------------------------------------\n\n")
}
````
however, compilation fails due to `__GFP_REPEAT` being undefined:
````
# stap -v ./vm.tracepoints.stp
Pass 1: parsed user script and 465 library scripts using
119732virt/48980res/6868shr/42544data kb, in 100usr/0sys/105real ms.
Pass 2: analyzed script: 2 probes, 2 functions, 5 embeds, 1 global using
123960virt/55004res/8300shr/46772data kb, in 120usr/230sys/345real ms.
Pass 3: translated to C into
"/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.c" using
123960virt/55004res/8300shr/46772data kb, in 0usr/0sys/0real ms.
/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.c: In function
‘function___private__usr_share_systemtap_tapset_linux_memory_stp___gfp_flag_str__overload_0’:
/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.c:698:17: error:
‘__GFP_REPEAT’ undeclared (first use in this function); did you mean
‘__GFP_RECLAIM’?
__GFP_BITMASKS(__GFP_REPEAT)
^
/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.c:659:45: note:
in definition of macro ‘__GFP_BITMASKS’
#define __GFP_BITMASKS(FLAG) if(gfp_flag & FLAG) { if(STAP_RETVALUE[0] !=
'\0') \
^~~~
/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.c:698:17: note:
each undeclared identifier is reported only once for each function it appears
in
__GFP_BITMASKS(__GFP_REPEAT)
^
/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.c:659:45: note:
in definition of macro ‘__GFP_BITMASKS’
#define __GFP_BITMASKS(FLAG) if(gfp_flag & FLAG) { if(STAP_RETVALUE[0] !=
'\0') \
^~~~
scripts/Makefile.build:308: recipe for target
'/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.o' failed
make[1]: *** [/tmp/stapjX0WQQ/stap_2b5505ba8af651817c2f6c55398c5877_6060_src.o]
Error 1
Makefile:1550: recipe for target '_module_/tmp/stapjX0WQQ' failed
make: *** [_module_/tmp/stapjX0WQQ] Error 2
WARNING: kbuild exited with status: 2
Pass 4: compiled C into "stap_2b5505ba8af651817c2f6c55398c5877_6060.ko" in
7010usr/880sys/7511real ms.
Pass 4: compilation failed. [man error::pass4]
Tip: /usr/share/doc/systemtap/README.Debian should help you get started.
````
** Affects: systemtap (Ubuntu)
Importance: Medium
Assignee: TJ (tj)
Status: In Progress
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https://bugs.launchpad.net/bugs/1763525
Title:
systemtap module compilation fails due to `__GFP_REPEAT` undeclared
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