a9d13a9c23
For Windows internal linking with CGO, when using more modern LLVM-based compilers, we may need to read in the object file "crt2.o" so as to have a definition of "atexit" (for example when linking the runtime/cgo test), and we also need to allow for the possibility that a given host archive might have to be looked at more than once. The goal here is to get all.bash working on Windows when using an up to date mingw C compiler (including those based on clang + LLD). This patch also adds a new "hostObject" helper routine, similar to "hostArchive" but specific to individual object files. There is also a change to hostArchive to modify the pseudo-package name assigned when reading archive elements: up until this point, a package name of "libgcc" was used (even when reading a host archive like "libmingex.a"), which led to very confusing errors messages if symbols were missing or there were duplicate definitions. Updates #35006. Change-Id: I19c17dea9cfffa9e79030fc23064c7c63a612097 Reviewed-on: https://go-review.googlesource.com/c/go/+/382838 Reviewed-by: Cherry Mui <cherryyz@google.com> Trust: Than McIntosh <thanm@google.com> Run-TryBot: Than McIntosh <thanm@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
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