On Thu, Apr 22, 2021 at 11:31 AM Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx> wrote: > > On Thu, 2021-04-22 at 11:22 -0500, Peng Yu wrote: > > These options are quite confusing. I have a hard time understanding > > the difference they are. Can anybody have a clear explanation (not > > just how they are used, but also the underlying reasons why it is so) > > for them? > > > > -fpic -fPIC -fpie -fPIE > > -fpic and -fPIC has some differences on several architectures, but not > on x86 (32-bit or 64-bit). For the details run "man gcc" in your > terminal. > > Generally, when you get any questions about a command line parameter for > a program named "foo" (for example), you should at first invoke "man > foo". The man is not well written in this and is confusing. It also doesn't explain the underlying details. -- Regards, Peng
