Hi Ted,
my name is Mikhail, I'm trying to adopt clang for my project. It works with "C", but I couldn't achieve success with C++.
I saw similar thread, tried set environment, without success yet.
http://lists.cs.uiuc.edu/pipermail/cfe-dev/2010-September/011194.html
Let me describe what I have and if you can help it will be very appreciated.
linux - Ubuntu
g++ (Ubuntu 4.4.3-4ubuntu5) 4.4.3
clang --version
clang version 3.3 (tags/RELEASE_33/final)
which clang
/usr/local/bin/clang
/usr/share/clang/scan-build/scan-build
People doesn't like get letters in attachment, so I used several source files from here:
http://mrbook.org/tutorials/make/
Then create in the same directory Makefile:
all:
g++ main.cpp hello.cpp factorial.cpp -o hello
allclang:
clang++ main.cpp hello.cpp factorial.cpp -o hello
clean:
rm -rf hello
Then create script for scan-build:
clang_example.sh
Hi Mikhail,
You seem to have some custom set up. Have you tried downloading the latest analyzer package and following the instructions on running scan-build on your project?
http://clang-analyzer.llvm.org/scan-build.html
Cheers,
Anna.
Hi Anna,
Problem was resolved:
I added files scanview.css and sorttable.js into /usr/bin and put all other tools there also (clang++, scan-build…)
After that I could run scan-build successfully and got report.
Thank you for help!
BR,
Mikhail.
Hi,
I am having the same problem.
I moved everything under the directory where the binaries are installed
as it works for Mikhail but I still don’t get the report.
Running scan-build on this test code
int main(int argc, char** argv)
{
uint8_t array[12];
uint8_t* ptr;
uint8_t i = 10/0;
array[3] = *ptr;
for (uint8_t i = 0; i < 13; i++) {
printf("%d\n", array[i]);
array[i] = 1;
}
printf("%d\n", ptr[1]);
ptr = array;
return 0;
}
$ scan-build --use-analyzer=which c++-analyzer -V -o . make
scan-build: Using ‘/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/c+±analyzer’ for static analysis
clang++ test.cpp -o test
test.cpp:18:19: warning: division by zero is undefined [-Wdivision-by-zero]
uint8_t i = 10/0;
^~
1 warning generated.
scan-build: Removing directory ‘/home/xxxx/programming/clang-check-test/2013-06-27-1’ because it contains no reports.
scan-build: No bugs found.
Running it with strace show the following
stat64("/home/xxxx/programming/clang-check-test/2013-06-27-1/failures", 0x94ea0c4) = -1 ENOENT (No such file or directory)
write(1, “scan-build: Removing directory '”…, 118scan-build: Removing directory ‘/home/xxxx/programming/clang-check-test/2013-06-27-1’ because it contains no reports.
) = 118
For some reason failures is not created.
Any hints?
Hi Salvatore,
please do following:
$which clang++
/usr/bin/clang++ (should be here. I hope that the limitation isn’t mandatory, but it will be much easier)
$which scan-build
/usr/bin/scan-build
$ls /usr/bin/scanview.css
/usr/bin/scanview.css
$ls /usr/bin/sorttable.js
/usr/bin/sorttable.js
All these files should be in place. If Yes, then your installation was successful.
And next:
export CXX=clang++
then, verify your Makefile
Thanks for your reply Mikhail.
I double checked that everything is in the same installation directory
but still nothing.
$ which scan-build
/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/scan-build
$ which clang++
/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/clang++
$ ls /home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/scanview.css
/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/scanview.css
$ ls /home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/sorttable.js
/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/sorttable.js
My makefile is as silly as
$ cat Makefile
test: test.cpp
clang++ test.cpp -o test
$ scan-build -o ./ make
scan-build: Using ‘/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin/clang’ for static analysis
clang++ test.cpp -o test
test.cpp:18:19: warning: division by zero is undefined [-Wdivision-by-zero]
uint8_t i = 10/0;
^~
1 warning generated.
scan-build: Removing directory ‘/home/xxxx/programming/clang-check-test/2013-06-27-1’ because it contains no reports.
scan-build: No bugs found.
clang version is 3.3
host is Ubuntu 12.04
Thanks again,
Salvatore
Ok. Let’s try step by step.
- PATH=/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin:$PATH
- export CXX=clang++
- Important: mofify your Makefile:
test: test.cpp
clang++ test.cpp -o test
as
test: test.cpp
$(CXX) test.cpp -o test
And read:
* The 1st paragraph under "Will it work with any build system?" of
http://clang-analyzer.llvm.org/scan-build.html
* "Variables for specifying commands" in the "Makefile conventions"
section of the GNU Make manual:
http://www.gnu.org/software/make/manual/html_node/Command-Variables.html
* "Variables used by implicit rules" in the GNU Make manual:
http://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html#index-CXX-868
I definitely should start reading instead of just scrolling down
quickly documentation ... 
It works just fine.
Thanks to both.
S.
Ok. Let’s try step by step.
- PATH=/home/xxxx/programming/llvm-bld/Release+Debug+Asserts/bin:$PATH
- export CXX=clang++
- Important: mofify your Makefile:
test: test.cpp
clang++ test.cpp -o test
as
test: test.cpp
$(CXX) test.cpp -o test
And read:
I definitely should start reading instead of just scrolling down
quickly documentation …
Some “evident” things became evident only after issue became resolved, not earlier 
It works just fine.
Great!
BR,
Mikhail.