I found out the cause is my additional code to the hotspot which use sdt namespace:
using namespace std; When I remove this line and all the printout with "cout <<", no more linking error. Though I don't have a thorough explanation. Does it mean I cannot use certain features in stdlib in hotspot? If so, which part (at least std namespace is not possible)? Cheers, /Nhan > -----Original Message----- > From: David Holmes [mailto:david.hol...@oracle.com] > Sent: Tuesday, June 14, 2011 1:21 PM > To: Dang Nhan Nguyen > Cc: build-dev@openjdk.java.net > Subject: Re: Build openjdk7/hotspot error while linking, > > Sorry never seen this, or heard of this one, when building hotspot. I > suggest comparing that build instructions used when building the whole > JDK with those building Hotspot by itself. > > David Holmes > > Dang Nhan Nguyen said the following on 06/14/11 20:01: > > Hi All, > > > > I have successfully built the whole Openjdk7/JVM (b121) on an > > platform with amd64/Ubuntu/Gcc 4.4.3. I try to build hotspot alone on > > the same machine. > > > > ALT_OUTPUTDIR=../../build/hotspot_product ARCH_DATA_MODEL=64 make > > product 2>&1 | tee ../../build/hotspot_product.log > > > > The building process go well, but the linking process has a error > > like this: > > > > Linking vm... /usr/bin/ld: > > /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libstdc++.a(ctype.o): relocation > > R_X86_64_32S against `vtable for std::ctype<wchar_t>' can not be used > > when making a shared object; recompile with -fPIC > > /usr/lib/gcc/x86_64-linux-gnu/4.4.3/libstdc++.a: could not read > > symbols: Bad value collect2: ld returned 1 exit status > > > > I try some time but have not solved it successfully. Could anybody > > hint me what is the actual problem and how to solve it? > > > > > > Thank you, --Nhan Nguyen
