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| author | Mark Wielaard <mjw@redhat.com> | 2014-11-27 23:53:30 +0100 |
|---|---|---|
| committer | Mark Wielaard <mjw@redhat.com> | 2014-12-04 14:38:18 +0100 |
| commit | 805ec833c17b01e1791162227ab0b4119ffe1eb0 (patch) | |
| tree | 49b51144788da2c08bd393cbb82335bdd6d0af38 /libelf | |
| parent | 12ab700282dd66d5d2144e13611011426091f260 (diff) | |
| download | android_external_elfutils-805ec833c17b01e1791162227ab0b4119ffe1eb0.tar.gz android_external_elfutils-805ec833c17b01e1791162227ab0b4119ffe1eb0.tar.bz2 android_external_elfutils-805ec833c17b01e1791162227ab0b4119ffe1eb0.zip | |
Add configure --disable-textrelcheck option to enable CC=afl-fuzz on 32bit.
Using american fuzzy lop has found a lot of issues. It would be nice to
make using it a bit easier. Our build files make sure that no shared
library uses text relocations, but afl-gcc will insert some on i686.
http://www.akkadia.org/drepper/textrelocs.html
Now CC=afl-gcc ./configure --disable-textrelcheck will allow them so
that afl can instrument the libraries.
Don't try to use or install them except with afl-fuzz. When selinux is
enabled it might prevent loading the libraries with DT_TEXTREL set.
Signed-off-by: Mark Wielaard <mjw@redhat.com>
Diffstat (limited to 'libelf')
| -rw-r--r-- | libelf/ChangeLog | 4 | ||||
| -rw-r--r-- | libelf/Makefile.am | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/libelf/ChangeLog b/libelf/ChangeLog index 68fb0fc1..e03ee09f 100644 --- a/libelf/ChangeLog +++ b/libelf/ChangeLog @@ -1,3 +1,7 @@ +2014-11-27 Mark Wielaard <mjw@redhat.com> + + * Makefile.am (libelf.so): Use textrel_check. + 2014-11-23 Mark Wielaard <mjw@redhat.com> * elf_getdata_rawchunk.c (elf_getdata_rawchunk): Change signed diff --git a/libelf/Makefile.am b/libelf/Makefile.am index 493e4ec1..68885293 100644 --- a/libelf/Makefile.am +++ b/libelf/Makefile.am @@ -103,7 +103,7 @@ libelf.so$(EXEEXT): libelf_pic.a libelf.map $(LINK) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \ -Wl,--version-script,$(srcdir)/libelf.map,--no-undefined \ -Wl,--soname,$@.$(VERSION),-z,defs,-z,relro $(libelf_so_LDLIBS) - if $(READELF) -d $@ | fgrep -q TEXTREL; then exit 1; fi + $(textrel_check) ln -fs $@ $@.$(VERSION) install: install-am libelf.so |