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go/misc/cgo
Cherry Zhang 19a932ceb8 cmd/link: don't mark shared library symbols reachable unconditionally
During the transitioning period, we mark symbols from Go shared
libraries reachable unconditionally. That might be useful when
there was still a large portion of the linker using sym.Symbols,
and only reachable symbols were converted to sym.Symbols. Marking
them reachable brings them to the dynamic symbol table, even if
they are not needed, increased the binary size unexpectedly.

That time has passed. Now we largely operate on loader symbols,
and it is not needed to mark them reachable anymore.

Fixes #40416.

Change-Id: I1e2bdb93a960ba7dc96575fabe15af93d8e95329
Reviewed-on: https://go-review.googlesource.com/c/go/+/244839
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2020-07-27 16:04:55 +00:00
..
errors cmd/cgo: do not rewrite call if there are more args than parameters 2019-07-12 17:31:29 +00:00
fortran misc/cgo/fortran: avoid writing to $PWD 2019-11-20 22:37:23 +00:00
gmp
life misc: remove use of relative directories in overlayDir functions 2019-11-25 16:26:15 +00:00
nocgo
stdio misc: remove use of relative directories in overlayDir functions 2019-11-25 16:26:15 +00:00
test cmd/cgo: prevent redeclaration of _Ctype_void when C.void is used 2020-06-26 19:00:25 +00:00
testasan misc: log 'ok' from 'go run' tests on success 2019-11-25 16:43:27 +00:00
testcarchive all: remove scattered remnants of darwin/arm 2020-04-08 18:35:49 +00:00
testcshared all: remove scattered remnants of darwin/arm 2020-04-08 18:35:49 +00:00
testgodefs cmd/cgo: in -godefs mode, don't change constant to type 2020-06-11 21:53:45 +00:00
testplugin misc/cgo/testplugin: fix typo in comment 2020-06-01 23:25:14 +00:00
testsanitizers runtime: save/restore callee saved registers in arm64's sigtramp 2019-06-03 19:02:11 +00:00
testshared cmd/link: don't mark shared library symbols reachable unconditionally 2020-07-27 16:04:55 +00:00
testsigfwd misc: log 'ok' from 'go run' tests on success 2019-11-25 16:43:27 +00:00
testso all: remove scattered remnants of darwin/arm 2020-04-08 18:35:49 +00:00
testsovar all: remove scattered remnants of darwin/arm 2020-04-08 18:35:49 +00:00
testtls