On Wed, Aug 28, 2019, 3:47 PM <w1252675...@gmail.com> wrote: > I find the package you build with 'go build buildmode=c-archive/c-shared', > when you build you code with the lib, the outer need to have main func, I > don't know why. >
That requirement is documented here: https://golang.org/cmd/go/#hdr-Build_modes > 在 2016年5月18日星期三 UTC+8上午11:11:57，Justin Israel写道： >> >> I'm wondering if someone can tell me if this is either a limitation of >> buildmode=c-archive static libs, or if I am really just doing something >> wrong. >> >> Problematic steps: >> >> 1. export functions to libgofoo.a using buildmode=c-archive >> 2. statically link libgofoo.a into another library to produce libfoo.a >> 3. Someone else consumes libfoo.a and libgofoo.a in their library, >> and get linker errors about: >> ld: libgofoo.a(go.o): relocation R_X86_64_TPOFF32 against >> `runtime.tlsg` can not be used when making a shared object; recompile with >> -fPIC >> libgofoo.a: could not read symbols: Bad value >> >> But library that wants to consume these libs can do so if they >> dynamically link with shared libs from c-shared. Also, if the consumer >> of the libs is a main binary, then the static linking works and does not >> complain. It is only when the target is a library. >> >> I could swear I went through and ensured -fPIC was being used, but it >> didn't seem to make a difference. Am I infact just messing up my >> compilation settings and failing to add this flag as it suggests, or is >> there a known limitation related to the steps I have outlined? >> >> Thanks! >> Justin >> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "golang-nuts" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/golang-nuts/EhndTzcPJxQ/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > golang-nuts+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/2032198a-00dd-40a8-a8aa-489e9ae406bf%40googlegroups.com > <https://groups.google.com/d/msgid/golang-nuts/2032198a-00dd-40a8-a8aa-489e9ae406bf%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAPGFgA3jXOrEVf8pFrC5GxF%2B%3Dmg_DUZOPj-LDS1e-scj_%3D_LLA%40mail.gmail.com.
