dspinellis / cscout Goto Github PK

Hello.

I'm not really understand in what order this should expand, and why not otherwise, but: 'we have what we have'.

// The definition's and TokenSequence:

#define A(x) C(B, D
#define D A(1))
#define C(x,y) E(y)
#define E(y) #y
A(2))

Clang, gcc, tcc preprocess this text equally: "\"D\""

But cscout has another result: "A(1)")
(Intel compiler has similar result.)

Anyway, perhaps, this is an excellent example for the next test suite.

With respect and best regards.

The file src/Makefile is missing some explicit dependencies, which causes parallel builds (using make -j N) to fail.
For example the generation of funmetrics.o or workdb.o depends onfunmetrics.h, which in turn depends on the generated file ytab.h.

I would suggest to include all dependencies (e.g., generated by gcc -MM) in the Makefile, or (if using GNU make is expected), use the technique described in https://www.gnu.org/software/make/manual/html_node/Automatic-Prerequisites.html.

Hi,

Would you consider using a Makefile generator or anything making the build process more portable ? As for #18 it helps a lot in the packaging process for any distribution.

In addition of the CC variables, you also have some INSTALL_PREFIX and dependencies variables hardcoded.

Hi there,
I am trying to build and test cscout and I have no idea if I am doing it correctly.
I just set $CC = /usr/bin/clang and $CXX = /usr/bin/clang++ (version 10) Ubuntu 20.04 LTS
And used my normal make line to output stdout to a file.
eg:
1st logfile: make -j6 -i 2>&1 | tee -a clang-cscout-build-op-20200811.log
2nd logfile: make test -j6 -i 2>&1 | tee -a clang-cscout-build-optests-20200811.log

Here are the logfiles:
clang-cscout-build-op.zip

I installed cscout to home/user/mystuff/programs but get this error when I try to use csmake on my project.

../../programs/bin/csmake -j6 2>&1 | tee -a clang-build-op-20200801.log
Unable to open /tmp/spy-make.33214//usr/bin/clang for writing: No such file or directory

Thanks for any advice on correctly build cscout,
Regards,
David.

• Add use strict use warnings
• Use 3-parameter open

I am getting this error, I see no -I type options to add a directory of header files

Upon running csmake, I get this error:

Unable to open /tmp/spy-make.3076/rules for reading: No such file or directory
Make sure you have run `make clean' or an equivalent command.

Upon digging into the source:

http://github.com/dspinellis/cscout/blob/c758472/src/csmake.pl#L67-L70

it appears that GCC, LD and AR are hard coded. This would mean that cross
compilers such as x86_64-w64-mingw32-gcc are not supported. Please advise if
this is the case, or if a setting is available to change the compiler.

According to this documentation:

https://www.spinellis.gr/cscout/doc/run.html
Section: Checking invocation

I should be able to run the command:

cscout -rc marklar.cs

but all I get is Usage message.

The option processing logic in cscout.cpp clearly forbids this combination.
The cases 'c' and 'r': ... require the variable 'process_mode' to be 0 (pm_unspecified).

Since process_mode is an enum, you must pick one and only one.
There does not seem to be a way to specify a set of process modes.
If process_mode were some set type, like a bitmap, then more than one
can be specified. That would make the logic for validating combinations
a bit more complicated.

If it is really true that -c and -r are incompatible, then I guess the documentation
needs to be changed, instead. But it seems to me that -c has implications that
are completely orthogonal to other options, and so needs to be kept track of
separately, not as part of an enum.

-- Guy Shaw

When trying to process

#include <complex.h>

int main() {
}

I get a syntax error for cmathcalls.h. I use glibc version 2.19 and gcc 4.9.2.

Best regards

Georg Geiser

I have compiled linux kernel 2.6.34 with gcc 4.8 successfully.

I want to generate make.cs as input of cscout, so I run csmake to capture the compilation rules for each .c file.

However, I find a lot of Warning when running csmake, as following:
Warning: No compilation rule for /home/plus/linux/linux-2.6.34/lib/show_mem.o

These warnings indicate csmake fails to capture compilation rule for these compilation units, and when I use make.cs to run cscout, these files are not analyzed.

Is there any solution to deal with this problem?

The src/Makefile target "example" calls cscout.exe, which is not made on Linux hosts.

The #pragma once non-standard extension is supported by most C compilers. Without it, programs that use it may enter an infinite include recursion.

Would you like to add more error handling for return values from functions like the following?

• fprintf ⇒ Pager::end
• fputs ⇒ html_perror

It can be presented as an argument next to the query title option.

The gcc builtins are listed here.
Many require casts to C11 types, so this should be implemented after #5 and #6.

When running the awk example provided, I am getting an error when running cscout make.cs. The error is:

/usr/include/x86_64-linux-gnu/bits/mathcalls-helper-functions.h:21 error: syntax error.

Hi,
I cloned the repo and ran the make command. During the compilation, it entered into an inifinite loop:
.... sh make-version.sh >version.cpp : not foundn.sh: 4: echo Expect 3 shift/reduce conflicts, 64 reduce/reduce conflicts Expect 3 shift/reduce conflicts, 64 reduce/reduce conflicts ../btyacc/btyacc -d -b eval -p eval_ eval.y mv -f eval.tab.c eval.cpp sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: ...

Trying to run 'make clean' afterwards also hits the infinite loop:
ilyar@irozents-mobl:/mnt/c/Users/irozents/Downloads/cscout$ make clean cd src && make clean make[1]: Entering directory '/mnt/c/Users/irozents/Downloads/cscout/src' sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4: sh make-version.sh >version.cpp : not foundn.sh: 4:

• _Thread_local
• _Alignas Must actually parse the expression or type.
• ...

(Great soft!)
2 questions:
My interest is in processing potentially large C projects and obtain the static call graph of each in plain text.

1. I've understood how to do that through the browser but it'd be much easier for me to redirect the output of cscout to some plain text file in order to automatically process many projects. How can I do that ?
2. Is there a way to get rid of calls to functions and macros that belong to include'd files?
   Thanks!
   Philippe

--2018-09-20 00:54:43--  http://hsqldb.org/download/hsqldb-2.3.3.zip
Resolving hsqldb.org (hsqldb.org)... 208.95.105.31
Connecting to hsqldb.org (hsqldb.org)|208.95.105.31|:80... connected.
HTTP request sent, awaiting response... remote: Counting objects: 186, done.
404 Not Found
2018-09-20 00:54:44 ERROR 404: Not Found.

I gave up immediately afterwards ;)

sed： version.cpp：No such file or directory
fatal: Not a git repository (or any of the parent directories): .git
Makefile:287: dep/md5.d: No such file or directory
Makefile:287: dep/attr.d: No such file or directory
Makefile:287: dep/call.d: No such file or directory
Makefile:287: dep/cscout.d: No such file or directory
Makefile:287: dep/ctag.d: No such file or directory
Makefile:287: dep/ctconst.d: No such file or directory
Makefile:287: dep/ctoken.d: No such file or directory
Makefile:287: dep/debug.d: No such file or directory
Makefile:287: dep/dirbrowse.d: No such file or directory
Makefile:287: dep/eclass.d: No such file or directory
Makefile:287: dep/error.d: No such file or directory
Makefile:287: dep/fcall.d: No such file or directory
Makefile:287: dep/fchar.d: No such file or directory
Makefile:287: dep/fdep.d: No such file or directory
Makefile:287: dep/fileid.d: No such file or directory
Makefile:287: dep/filemetrics.d: No such file or directory
Makefile:287: dep/filequery.d: No such file or directory
Makefile:287: dep/fileutils.d: No such file or directory
Makefile:287: dep/funmetrics.d: No such file or directory
Makefile:287: dep/funquery.d: No such file or directory
Makefile:287: dep/gdisplay.d: No such file or directory
Makefile:287: dep/globobj.d: No such file or directory
Makefile:287: dep/html.d: No such file or directory
Makefile:287: dep/idquery.d: No such file or directory
Makefile:287: dep/logo.d: No such file or directory
Makefile:287: dep/macro.d: No such file or directory
Makefile:287: dep/mcall.d: No such file or directory
Makefile:287: dep/metrics.d: No such file or directory
Makefile:287: dep/obfuscate.d: No such file or directory
Makefile:287: dep/option.d: No such file or directory
Makefile:287: dep/os.d: No such file or directory
Makefile:287: dep/pager.d: No such file or directory
Makefile:287: dep/pdtoken.d: No such file or directory
Makefile:287: dep/pltoken.d: No such file or directory
Makefile:287: dep/ptoken.d: No such file or directory
Makefile:287: dep/query.d: No such file or directory
Makefile:287: dep/simple_cpp.d: No such file or directory
Makefile:287: dep/sql.d: No such file or directory
Makefile:287: dep/stab.d: No such file or directory
Makefile:287: dep/tchar.d: No such file or directory
Makefile:287: dep/timer.d: No such file or directory
Makefile:287: dep/token.d: No such file or directory
Makefile:287: dep/tokid.d: No such file or directory
Makefile:287: dep/tokmap.d: No such file or directory
Makefile:287: dep/type.d: No such file or directory
Makefile:287: dep/workdb.d: No such file or directory
Makefile:287: dep/css.d: No such file or directory
Makefile:287: dep/eval.d: No such file or directory
Makefile:287: dep/logo.d: No such file or directory
Makefile:287: dep/parse.d: No such file or directory
Makefile:287: dep/tokname.d: No such file or directory
Makefile:287: dep/version.d: No such file or directory
make: *** No rule to make target 'dep/version.d'。

csmake test 5 fails with

  /usr/include/runetype.h:92: error: syntax error

Hi,

You have some CC = cc and CXX = c++ in your Makefiles. If there are no specific reason to keep them, could we simply remove these lines ? It would help packaging it if it respects system’s compiler.

$ make -j
cd swill && /usr/bin/make
cd btyacc && /usr/bin/make
make[1]: Entering directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/swill'
cd Source/Objects; /usr/bin/make
make[1]: Entering directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/btyacc'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/btyacc'
make[2]: Entering directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/swill/Source/Objects'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/swill/Source/Objects'
cd Source/SWILL; /usr/bin/make static
make[2]: Entering directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/swill/Source/SWILL'
make[2]: Nothing to be done for 'static'.
make[2]: Leaving directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/swill/Source/SWILL'
make[1]: Leaving directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/swill'
cd src && /usr/bin/make
make[1]: Entering directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/src'
/usr/bin/make depend
make[2]: Entering directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/src'
make[2]: Nothing to be done for 'depend'.
make[2]: Leaving directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/src'
/usr/bin/make build/cscout
make[2]: Entering directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/src'
g++ -c -std=gnu++11 -O3 -pipe -Wall -I. -DINSTALL_PREFIX='"/usr/local"' -DPRODUCTION -o build/html.o html.cpp
html.cpp: In function ‘void html_head(FILE*, std::string, std::string, const char*)’:
html.cpp:170:17: error: expected primary-expression before ‘,’ token
170 | , of);
| ^
make[2]: *** [Makefile:152: build/html.o] Error 1
make[2]: Leaving directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/src'
make[1]: *** [Makefile:174: all] Error 2
make[1]: Leaving directory '/d/Eda/cygwin/cygwin64/home/kelle/cscout/src'
make: *** [Makefile:31: src/build/cscout] Error 2

When running csmake against my codebase, the output to the rules file from all the concurrent spy processes isn't synchronised, resulting in "BEGIN COMPILE...END COMPILE" blocks appearing in the middle of others, often breaking a random #define line in half.

Ideally each spy invocation should write to an independent temp file, and all the files concatenated at the end of the run.

The following function

void (*f(int a))(void)
{
        while (a--)
                ;
        return 0;
}

gives the error

 warning: undeclared identifier: a

C99 rules prevented the specification of more than one storage class specifier for a given object. Now _Thread_local can be combined with extern or static.

Hi,

I am refactoring old C code and came across cscout which probably is a big help. I created a specification using the documentation on your website for cscout:

workspace xwpe-git {
ro_prefix "/usr/include"
define LIBRARY_DIR 1
project xwpe {
cd "src"
ipath ".."
file we_block.c we_edit.c we_fl_unix.c WeLinux.c we_mouse.c
file we_progn.c we_term.c we_xterm.c we_debug.c WeExpArr.c we_gpm.c
file we_main.c we_opt.c WeString.c we_unix.c WeXterm.c we_e_aus.c
file we_fl_fkt.c we_hfkt.c we_menue.c we_prog.c WeSyntax.c we_wind.c
}
}

executed cswc xwpe.cscout > xwpe.cs and cscout xwpe.cs. The output points to an error I do not understand, I print the last few lines.

/home/data/gbonnema/projects/c/xwpe-guus/src/we_fl_fkt.c:1498: warning: assuming declaration int __builtin_strncpy(...)
Done processing file we_fl_fkt.c
Processing file we_hfkt.c
/usr/local/include/cscout/host-defs.h:289: warning: Duplicate (different) macro definition of macro __has_include_next
/usr/include/regex.h:568: error: syntax error

It seems like there is an error in a library header? Or do I misunderstand the message completely. I checked the regex.h file and do not see the error it refers to. Could you point me in the right direction?

Kind regards, Guus Bonnema.

My codebase has multiple auto-generated headers that don't start or end with newlines. When they're included consecutively the first line of the second header ends up joined to the end of the last line of the first header. This resulted in something like the following:

#define MACRO (some + expression)#define SECONDMACRO

which of course cscout's parser choked on when MACRO was finally invoked in an expression.

CPP always keeps the lines separate in this case, and the project builds successfully.

Why E_ERR escalates to E_FATAL after 1000 E_ERR errors?

Add the complex.h header and the _Complex type declaration.

Useful for #1.

This will make it easier to generate the final formatted version. It seems the conversion process can be automated using Pandoc.
Issues:

• Literal HTML blocks
• Syntax highlighting
• Page navigation
• Images