Hi VALGRIND developers and users,
I'm planning to modify a part of your product, VALGRIND,to integrate it
with a middleware for robots called ROS.
In order to do this, I'm considering two ways to implement the massif
component of VALGRIND: (1) to implement it in C and call it in another
program as a Python library, and (2) to convert it into a ROS/ROS2
component (nodes) in C++.
The reason for these implementations plan is that I want to retrieve the
values of heap_szB and stack_szB defined in the Snapshot structure in
ms_main.c of massif via VALGRIND and use them in a timely manner in an
external Python-based program.
As far as I read the raw source code, the way to get the data is to specify
the last struct element of Snapshot* snapshot and extract it (if I'm wrong,
please let me know).However, I'm struggling with the implementation of the
part that passes to the external application.
Please advise me on the implementation, including which method is more
feasible.
As for (1), I tried to build the source code to see if I could include
Python.h correctly, and it failed, so I'll keep a log of this.
========
<< Environment >>
$ uname -a
Linux [HOSTNAME] 5.4.0-1026-raspi #29-Ubuntu SMP PREEMPT Mon Dec 14
17:01:16 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux
$ cat /etc/lsb-release*
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.1 LTS"
<< What I did during the build and the log >>
I made the following changes to the DEFAULTS_INCLEDES variable in the
massif/Makefile.
DEFAULT_INCLUDES = -I. -I$(top_builddir) -I/usr/include/python3.8
I also inserted the following two lines in the first line of
massif/ms_main.c. The following two lines are inserted in the first line of
massif/ms_main.c. No functions using PyObject* are implemented in the file.
#define PY_SSIZE_T_CLEAN
#include <Python.h>.
When I ran make and make install, I got the following error message.
Making all in massif
make[2]: Entering directory '/home/[username]/[work
directory]/valgrind-3.16.1/massif'
Making all in .
make[3]: Entering directory '/home/[username]/[work
directory]/valgrind-3.16.1/massif'
gcc -DHAVE_CONFIG_H -I. -I... -I/usr/include/python3.8 -I.. -I.. /include
-I.. /include -I. /VEX/pub -I. /VEX/pub -DVGA_arm64=1 -DVGO_linux=1
-DVGP_arm64_linux=1 -DVGPV_arm64_linux_vanilla=1 -O2 -g -Wall
-Wmissing-prototypes -Wshadow -Wpointer- arith -Wstrict-prototypes
-Wmissing-declarations -Wcast-align -Wcast-qual -Wwrite-strings
-Wempty-body -Wformat -Wformat-signedness Wformat-security
-Wignored-qualifiers -Wmissing-parameter-type -Wlogical-op
-Wimplicit-fallthrough=2 -Wold-style-declaration -finline- functions
-fno-stack-protector -fno-strict-aliasing -fno-builtin -MT
massif_arm64_linux-ms_main.o -MD -MP -MF .deps/massif_arm64_linux-ms_ Tpo
-c -o massif_arm64_linux-ms_main.o `test -f 'ms_main.c' || echo '.
/'`ms_main.c
In file included from /usr/include/aarch64-linux-gnu/sys/stat.h:101,
From /usr/include/python3.8/pyport.h:245,
from /usr/include/python3.8/Python.h:63,
from ms_main.c:6:
... /include/vki/vki-arm64-linux.h:316:25: error: expected ':', ',', '. ;',
'}' or '__attribute__' before '. token
316 | long st_atime;
| ^~~~~~~~
make[3]: *** [Makefile:1087: massif_arm64_linux-ms_main.o] Error 1
make[3]: Leaving directory '/home/[username]/[my work
directory]/valgrind-3.16.1/massif'
make[2]: *** [Makefile:1121: all-recursive] Error 1
make[2]: Leaving directory '/home/[username]/[my work
directory]/valgrind-3.16.1/massif'
make[1]: *** [Makefile:849: all-recursive] Error 1
make[1]: Leaving directory '/home/[username]/[my work
directory]/valgrind-3.16.1'
Make: *** [Makefile:718: all] Error 2
Best regards,
Koki
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