gdb can not step a single instruction on Mac

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salmister@hotmail.com - 26 Oct 2006 16:42 GMT

I am new to the mac development environment and having problems running
gdb on mac x86. I am trying to step a single instruction with stepi but
it is behaving like continue. Is this a known problem with gdb on mac?
I am compiling with -ggdb and I am able to view the next instruction
with no problems.

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Tom Harrington - 26 Oct 2006 17:17 GMT

> I am new to the mac development environment and having problems running
> gdb on mac x86. I am trying to step a single instruction with stepi but
> it is behaving like continue. Is this a known problem with gdb on mac?
> I am compiling with -ggdb and I am able to view the next instruction
> with no problems.

Surprisingly, Mac developers do actually debug software, so this is not
a known problem. Based on the sparse information you've provided it's
hard to say what might be wrong, although at a guess I'd ask if you're
optimizing with one of the -O flags. Doing that can make debugging
difficult, and is generally not recommended (unless it's -O0).

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Tom "Tom" Harrington
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Mac Forum / Programming / Mac Programming / October 2006

gdb can not step a single instruction on Mac