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Re: Support for ELF's STT_COMMON symbol type
Hi H.J.
Do you have runtime tests? Without runtime tests, we don't know
if linker is really doing the right thing.
Yes and no.
No, I have not added any tests to explicitly cover this area, but...
Yes, the tests in ld-shared cover this area quite nicely. Running the linker
testsuites for a native linker configured and built with
--enable-elf-stt-common results in there failures:
FAIL: Run with libdl2a.so
FAIL: Run with libdl2b.so
FAIL: Run with libdl2c.so
FAIL: Run with libdl4a.so
FAIL: Run with libdl4b.so
FAIL: Run with libdl4c.so
FAIL: Run with libdl4d.so
FAIL: Run with libdl4e.so
FAIL: Run with libdl4f.so
FAIL: Run with libdata1.so
Looking at the reasons for the failures the log shows messages like this:
tmpdir/dl2a: symbol lookup error: tmpdir/dl2a: undefined symbol: foo
and checking the type of foo shows that sure enough it is STT_COMMON.
What I have not done however is built a fixed loader and rerun these tests to
make sure that they pass. Any suggestions as to how I might do this ? Will I
have to use a chroot environment ?
Cheers
Nick