On Thu, May 21, 2015 at 2:51 PM, Pedro Alves <pal...@redhat.com> wrote:
> On 05/21/2015 10:12 PM, Sriraman Tallam wrote:
>>
>> My original proposal, for x86_64 only, was to add
>> -fno-plt=<function-name>. This lets the user decide for which
>> functions PLT must be avoided. Let the compiler always generate an
>> indirect call using call *func@GOTPCREL(%rip). We could do this for
>> non-PIC code too. No need for linker fixups since this relies on the
>> user to know that func is from a shared object.
>
> Having to pass function names on the command line seems like an odd
> interface. E.g, you'll need to pass the mangled name for
> C++ functions. Any reason this isn't a function attribute?
It is not clear to me where I would stick the attribute. Example
usage in foo.cc:
#include<string.h>
int main() {
int n = memcmp(....);
}
I want memcmp to not go through PLT, do you propose explicitly
re-declaring it in foo.cc with the attribute?
Thanks
Sri
>
> Thanks,
> Pedro Alves
>
