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| author | Carmelo Amoroso <carmelo.amoroso@st.com> | 2007-11-16 14:32:35 +0000 |
|---|---|---|
| committer | Carmelo Amoroso <carmelo.amoroso@st.com> | 2007-11-16 14:32:35 +0000 |
| commit | a6eef2edb3dada9ee1a0765dd7901d0a988f30ce (patch) | |
| tree | 64010526390195481e6443108fc862064b651915 /libc/stdio/_trans2r.c | |
| parent | e130b681c43ee2215512ffcf6cadcbc4487e96e6 (diff) | |
If uClibc's ld.so encounters text relocations in a shared library - one
containing an object built without -fpic/-fPIC - then:
* If __FORCE_SHAREABLE_TEXT_SEGMENTS__, then it gives an error "Can't
modify %s's text section. Use GCC option -fPIC for shared objects,
please.\n" and exits.
* Otherwise, it makes the library's pages writable and relocates it.
If it encounters text relocations in a position-independent executable -
one containing an object built without -fpie/-fPIE/-fpic/-fPIC - then:
* If __FORCE_SHAREABLE_TEXT_SEGMENTS__, it does nothing about making the
pages writable, leading to a crash.
* Otherwise, the loop to make the pages writable uses the same variable
ppnt as used in an outer loop, messing up that outer loop and also causing
a crash.
This patch fixes both cases, by giving an error if
__FORCE_SHAREABLE_TEXT_SEGMENTS__ and saving and restoring ppnt otherwise.
Tested in both cases on ARM EABI.
Joseph S. Myers
joseph@codesourcery.com
Diffstat (limited to 'libc/stdio/_trans2r.c')
0 files changed, 0 insertions, 0 deletions