-fpic
Generate position-independent code (PIC) suitable for use in a
shared library, if supported for the target machine. Such code
accesses all constant addresses through a global offset table
(GOT). The dynamic loader resolves the GOT entries when the pro-
gram starts (the dynamic loader is not part of GCC; it is part of
the operating system). If the GOT size for the linked executable
exceeds a machine-specific maximum size, you get an error message
from the linker indicating that -fpic does not work; in that
case, recompile with -fPIC instead. (These maximums are 16k on
the m88k, 8k on the SPARC, and 32k on the m68k and RS/6000. The
386 has no such limit.)
Position-independent code requires special support, and therefore
works only on certain machines. For the 386, GCC supports PIC
for System V but not for the Sun 386i. Code generated for the
IBM RS/6000 is always position-independent.
-fPIC
If supported for the target machine, emit position-independent
code, suitable for dynamic linking and avoiding any limit on the
size of the global offset table. This option makes a difference
on the m68k, m88k, and the SPARC.
-fPIC 을 많이 쓰는것으로 알고 있습니다.공유라이브러리를(*.
-fPIC 을 많이 쓰는것으로 알고 있습니다.
공유라이브러리를(*.so) 생성할때 쓰는 옵션입니다.
공유라이브러리는 일반 정적(*.a) 라이브러리와 달리 코드와
분리되기 때문에 재배치와 또.. -_- 뭐지..까 먹었네요...
여러가지를 좀더 지원해야 하므로 -fPIC 옵션으로 처리를 해야합니다.
가자 해외로 ~ .. 돈 벌러.
-fpic를 알고 싶었는데
-fpic를 알고 싶었는데
@.@
Re: -fpic를 알고 싶었는데
저의 짧은 지식으로는 -fpic 이나 -fPIC 이나 동일한것으로
알며 후자를 많이 쓰는것으로... (확신은 못하겠네요 )
가자 해외로 ~ .. 돈 벌러.
[code:1] -fpic Generat
-fpic Generate position-independent code (PIC) suitable for use in a shared library, if supported for the target machine. Such code accesses all constant addresses through a global offset table (GOT). The dynamic loader resolves the GOT entries when the pro- gram starts (the dynamic loader is not part of GCC; it is part of the operating system). If the GOT size for the linked executable exceeds a machine-specific maximum size, you get an error message from the linker indicating that -fpic does not work; in that case, recompile with -fPIC instead. (These maximums are 16k on the m88k, 8k on the SPARC, and 32k on the m68k and RS/6000. The 386 has no such limit.) Position-independent code requires special support, and therefore works only on certain machines. For the 386, GCC supports PIC for System V but not for the Sun 386i. Code generated for the IBM RS/6000 is always position-independent. -fPIC If supported for the target machine, emit position-independent code, suitable for dynamic linking and avoiding any limit on the size of the global offset table. This option makes a difference on the m68k, m88k, and the SPARC.----
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