[WIP] Add libnss build and 15 fuzzers from crrev.com/1677803002.

[Dor1s]

My attempts to statically link nss libraries into fuzzers. Link to logs:

Instead of:
-lnss3 -lnssutil3 -lnspr4 -lplc4 -lplds4
I tried to use /out/*.a
log: https://gist.github.com/Dor1s/d9873b241480ccbb530d2ee2af8d7072

and another version with exact names:
/out/libnss.a /out/libnssutil.a /out/libnspr4.a /out/libplc4.a /out/libplds4.a
log: https://gist.github.com/Dor1s/fdd88b7092a85bcdd1a03bcd2382fe6b

[Dor1s]

@oliverchang @mikea ctrl+F "undefined reference" may be helpful while looking into the logs :)

[mikea]

you don't seem to use LD_FLAGS. I think you are missing libc++ stuff.

[Dor1s]

Good point, now I miss not so many things https://gist.github.com/Dor1s/c70390984108d4c8a622f38f6b381464

Looks like these are from NSPR, I'm trying to find them.

[Dor1s]

Now I miss:

/work/nss/lib/libplds4.a(plarena.o): In function `PL_InitArenaPool':
/work/nss/nspr/Linux3.13_x86_64_clang-4.0_glibc_PTH_64_OPT.OBJ/lib/ds/../../../lib/ds/plarena.c:48: undefined reference to `PR_CeilingLog2'
/work/nss/lib/libplds4.a(plhash.o): In function `PL_NewHashTable':
/work/nss/nspr/Linux3.13_x86_64_clang-4.0_glibc_PTH_64_OPT.OBJ/lib/ds/../../../lib/ds/plhash.c:74: undefined reference to `PR_CeilingLog2'
clang-4.0: error: linker command failed with exit code 1 (use -v to see invocation)
fuzzers build failed.

[Dor1s]

This is strange, PR_CeilingLog2 should be in prlog2.o and in libnspr4.a as a result:

/usr/bin/ar cr libnspr4.a ./prvrsion.o io/./prfdcach.o io/./prmwait.o io/./prmapopt.o io/./priometh.o io/./pripv6.o io/./prlayer.o io/./prlog.o io/./prmmap.o io/./prpolevt.o io/./prprf.o io/./prscanf.o io/./prstdio.o threads/./prcmon.o threads/./prrwlock.o threads/./prtpd.o linking/./prlink.o malloc/./prmalloc.o malloc/./prmem.o md/./prosdep.o memory/./prshm.o memory/./prshma.o memory/./prseg.o misc/./pralarm.o misc/./pratom.o misc/./prcountr.o misc/./prdtoa.o misc/./prenv.o misc/./prerr.o misc/./prerror.o misc/./prerrortable.o misc/./prinit.o misc/./prinrval.o misc/./pripc.o misc/./prlog2.o misc/./prlong.o misc/./prnetdb.o misc/./praton.o misc/./prolock.o misc/./prrng.o misc/./prsystem.o misc/./prthinfo.o misc/./prtpool.o misc/./prtrace.o misc/./prtime.o pthreads/./ptsynch.o pthreads/./ptio.o pthreads/./ptthread.o pthreads/./ptmisc.o md/unix/./unix.o md/unix/./unix_errors.o md/unix/./uxproces.o md/unix/./uxrng.o md/unix/./uxshm.o md/unix/./uxwrap.o md/unix/./linux.o md/unix/./os_Linux_x86_64.o

[Dor1s]

I made a static build of all fuzzers after the following change:

 mkdir -p /work/nss/lib
 #cp Linux*/lib/*.so /out
 cp dist/Linux*/lib/*.a /work/nss/lib
+cp nspr/Linux*/pr/src/misc/prlog2.o /work/nss/lib
 #cp Linux*/*.o /out
 #cp nss/lib/ssl/Linux*/*.o /work/nss/obj
 #cp nspr/Linux*/lib/ds/*.o /work/nss/obj
@@ -86,7 +87,7 @@ for fuzzer in $FUZZERS; do
      /work/libfuzzer/*.o \
      /work/nss/lib/libnss.a /work/nss/lib/libnssutil.a \
      /work/nss/lib/libnspr4.a /work/nss/lib/libplc4.a /work/nss/lib/libplds4.a \
-     -o /out/$fuzzer $LDFLAGS
+     /work/nss/lib/prlog2.o -o /out/$fuzzer $LDFLAGS
 done

It looks hacky, but works :/

[mikea]

feel free to merge & create a build.

[Dor1s]

Ok, will clean up and upload tomorrow. Thanks for the assistance! :)

[Dor1s]

Ah, not that good. Built 13 fuzzers out of 15. Trying to figure out what do others miss.

[Dor1s]

Let's start with those 13 fuzzers. I'll figure out what to do with cert_certificate_fuzzer and seckey_privatekeyinfo_fuzzer a bit later (currently busy with Chrome Security Sheriff duties).