Re: C functions
Re: C functions
- Subject: Re: C functions
- From: ChanMaxthon <email@hidden>
- Date: Fri, 18 Oct 2013 11:58:46 +0800
You can certainly move everything into a library, also you can prevent executables from being stripped in Xcode.
Sent from my iPhone
> On 2013年10月18日, at 11:54, Charles Srstka <email@hidden> wrote:
>
> Loadable bundles and libraries don't get stripped. Executables, since they don't need to be loaded by another process, usually are.
>
> Charles
>
>> On Oct 17, 2013, at 10:51 PM, ChanMaxthon <email@hidden> wrote:
>>
>> Then, problem, how did Core Foundation bundle loading work?
>>
>> Sent from my iPhone
>>
>>>> On 2013年10月18日, at 11:49, Charles Srstka <email@hidden> wrote:
>>>>
>>>> On Oct 17, 2013, at 10:40 PM, Maxthon Chan <email@hidden> wrote:
>>>>
>>>> You actually can, by using dlsym(3) to resolve the symbol, cast it to the appropriate function pointer and call it.
>>>>
>>>> For example:
>>>>
>>>> int (*myfunc)(int, int) = dlsym(RTLD_DEFAULT, myfunc_name);
>>>> if (myfunc)
>>>> printf(“%d”, myfunc(2, 3));
>>>> else
>>>> fprintf(stderr, “error: cannot resolve symbol: %s”, myfunc_name);
>>>>
>>>> This works on all POSIX operating systems.
>>>
>>> You shouldn't rely on dlsym() working in production code. If the binary is stripped (as it is by default for release builds, I believe), it won't work.
>>>
>>> Charles
>
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