[LLVMdev] How To Pass An Command Line Option To The Pass

Chad Rosier mcrosier at apple.com
Wed Feb 22 09:14:10 PST 2012


On Feb 22, 2012, at 7:18 AM, Tom Honermann wrote:

> On 2/22/2012 7:29 AM, Sevak Sargsyan wrote:
>> Hi all,
>> I have problem with debugging clang, gdb does not stop in function
>> ParseFrontendArgs, the function works because I wrote errs() and I saw
>> it in command line,
>> I also wrote __asm__("int $3") in  ParseFrontendArgs but it does not help.
> Are you debugging the correct process?  Note that invocations of 'clang' 
> without '-cc1' fork/exec 'clang -cc1' to handle front end options.

Use the -### option to see how the compiler proper is being invoked (e.g., clang -S foo.c -o - -###).

Also, make sure you're using a debug build.


> Tom.
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