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cmd/go, cmd/asm: pass -linkshared to assembler for shared linkage builds

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When the -linkshared build mode is in effect, the Go command passes
the "-linkshared" command line option to the compiler so as to insure
special handling for things like builtin functions (which may appear
in a shared library and not the main executable). This patch extends
this behavior to the assembler, since the assembler may also wind up
referencing builtins when emitting a stack-split prolog.

Fixes #43107.

Change-Id: I56eaded79789b083f3c3d800fb140353dee33ba9
Reviewed-on: https://go-review.googlesource.com/c/go/+/276932
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Than McIntosh 2020-12-10 08:44:44 -05:00
parent b110733327
commit 56b783ad94
3 changed files with 4 additions and 1 deletions
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1
src/cmd/asm/main.go
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@ -37,6 +37,7 @@ func main() {
ctxt := obj.Linknew(architecture.LinkArch)
ctxt.Debugasm = flags.PrintOut
ctxt.Flag_dynlink = *flags.Dynlink
ctxt.Flag_linkshared = *flags.Linkshared
ctxt.Flag_shared = *flags.Shared || *flags.Dynlink
ctxt.IsAsm = true
ctxt.Pkgpath = *flags.Importpath