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Michael Matloob e3de852f3e cmd/go: don't copy cgo files to objdir when overlay is present
The previous cl (golang.org/cl/262618) copied non-overlaid cgo files
to objdir, mostly to get around the issue that otherwise cgo-generated
files were written out with the wrong names (they'd get the base path
of the overlay file containing the replaced contents, instead of the
base path of the path whose contents are being replaced). So that CL
it would copy the files to objdir with the base path of the file
being replaced to circumvent that.

This CL changes cmd/go and cmd/cgo so that instead of copying
files, it passes the actual path of the file on disk either of
the original file (if it is not overlaid) or its replacement
file (if it is) as well as a flag --path_rewrite, newly added to
cmd/cgo, that specifies the actual original file path that corresponds
to the replaced files.

Updates #39958

Change-Id: Ic4aae5ef77fe405011fcdce7f6c162488d13daa2
Reviewed-on: https://go-review.googlesource.com/c/go/+/265758
Trust: Michael Matloob <matloob@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2020-11-10 16:09:36 +00:00
.github .github: add link to questions in ISSUE_TEMPLATE 2020-01-06 17:05:31 +00:00
api api: update next.txt 2020-10-29 20:51:49 +00:00
doc crypto/tls: de-prioritize AES-GCM ciphers when lacking hardware support 2020-11-10 01:40:27 +00:00
lib/time lib/time, time/tzdata: update tz data to 2020d 2020-10-24 21:42:44 +00:00
misc cmd/dist,cmd/go,runtime: add support for cgo on linux/riscv64 2020-11-03 12:59:51 +00:00
src cmd/go: don't copy cgo files to objdir when overlay is present 2020-11-10 16:09:36 +00:00
test cmd/compile: make sure linkname'd symbol is non-package 2020-11-09 16:09:16 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
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AUTHORS A+C: add Kush Patel (corporate CLA for Hootsuite Inc) 2020-07-08 00:10:44 +00:00
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CONTRIBUTORS CONTRIBUTORS: update for the Go 1.15 release 2020-08-10 21:51:48 +00:00
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SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00

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