delta/go-git.git/src/cmd/link/internal, branch dev.boringcrypto.go1.12

[dev.boringcrypto.go1.12] all: merge go1.12.9 into dev.boringcrypto.go1.12

2019-08-20T18:58:17+00:00

Change-Id: Ib50ec8a5ec235570ff1483f393acab48c45af585

[release-branch.go1.12] cmd/link: increase the function call limit in stkcheck

2019-08-09T21:08:07+00:00

There is real (albeit generated) code that exceeds the limit.

Updates #33555
Fixes #33557

Change-Id: I668e85825d3d2a471970e869abe63f3492213cc1
Reviewed-on: https://go-review.googlesource.com/c/go/+/189697
Run-TryBot: Ian Lance Taylor 
TryBot-Result: Gobot Gobot 
Reviewed-by: Cherry Zhang 
(cherry picked from commit 951143cf1425189965498cc32fc8dc132bf7c777)
Reviewed-on: https://go-review.googlesource.com/c/go/+/189717

[dev.boringcrypto.go1.12] all: merge go1.12.7 into dev.boringcrypto.go1.12

2019-07-19T21:15:28+00:00

Change-Id: I7100066c2fcc297186a1e6205d0055db344283ab

[release-branch.go1.12] cmd/link: put shlib ".type" functions in internal ABI

2019-07-16T17:21:01+00:00

These functions are compiler generated, and as such are only available
in the internal ABI. Doing this avoids generating an alias symbol.
Doing that avoids confusion between unmangled and mangled type symbols.

Updates #30768
Fixes #33040

Change-Id: I8aba3934ffa994b1a19fc442cfe3e05642792a25
Reviewed-on: https://go-review.googlesource.com/c/go/+/186278
Run-TryBot: Ian Lance Taylor 
TryBot-Result: Gobot Gobot 
Reviewed-by: Austin Clements

[release-branch.go1.12] cmd/link: revise previous __DWARF segment protection fix

2019-07-08T16:55:36+00:00

Tweak the previous fix for issue 32673 (in CL 182958) to work around
problems with c-shared build mode that crop up on some of the builders
(10.11, 10.12).  We now consistently set vmaddr and vmsize to zero
for the DWARF segment regardless of build mode.

Fixes #32697

Change-Id: Id1fc213590ad00c28352925e2d754d760e022b5e
Reviewed-on: https://go-review.googlesource.com/c/go/+/183237
Reviewed-by: Cherry Zhang 
Reviewed-by: David Chase 
Reviewed-on: https://go-review.googlesource.com/c/go/+/183398
Run-TryBot: Cherry Zhang 
TryBot-Result: Gobot Gobot

[release-branch.go1.12] cmd/link: macos: set initial protection of 0 for __DWARF segment

2019-07-08T16:54:28+00:00

For later versions of MacOS, the dynamic loader is more picky about
enforcing restrictions on __DWARF MachO load commands/segments,
triggering aborts of the form

  dyld: malformed mach-o image: segment __DWARF has vmsize < filesize

for Go programs that use cgo on Darwin. The error is being triggered
because the Go linker is setting "vmsize" in the DWARF segment entry
to zero as a way to signal that the DWARF doesn't need to be mapped
into memory at runtime (which we need to continue to do).

This patch changes the initial protection on the __DWARF segment to
zero, which dyld seems to be happy with (this is used for other similar
non-loadable sections such as __LLVM).

Updates #32697

Change-Id: I9a73449c6d26c172f3d70361719943af381f37e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/182958
Run-TryBot: Than McIntosh 
TryBot-Result: Gobot Gobot 
Reviewed-by: Cherry Zhang 
Reviewed-on: https://go-review.googlesource.com/c/go/+/183397

[dev.boringcrypto.go1.12] all: merge go1.12.6 into dev.boringcrypto.go1.12

2019-06-13T18:47:03+00:00

Change-Id: I2598fb7f3a350e0244527c5244e423f9a9e01b86

[release-branch.go1.12] cmd/link: fix deferreturn detector

2019-06-10T19:51:25+00:00

The logic for detecting deferreturn calls is wrong.

We used to look for a relocation whose symbol is runtime.deferreturn
and has an offset of 0. But on some architectures, the relocation
offset is not zero. These include arm (the offset is 0xebfffffe) and
s390x (the offset is 6).

This ends up setting the deferreturn offset at 0, so we end up using
the entry point live map instead of the deferreturn live map in a
frame which defers and then segfaults.

Instead, use the IsDirectJump helper to find calls.

Fixes #32484

Change-Id: Iecb530a7cf6eabd7233be7d0731ffa78873f3a54
Reviewed-on: https://go-review.googlesource.com/c/go/+/181258
Run-TryBot: Keith Randall 
TryBot-Result: Gobot Gobot 
Reviewed-by: Cherry Zhang 
(cherry picked from commit 9eb403159da9debbb4881140995e62bec0c943f3)
Reviewed-on: https://go-review.googlesource.com/c/go/+/181262
Reviewed-by: Emmanuel Odeke 
Run-TryBot: Emmanuel Odeke

[dev.boringcrypto.go1.12] all: merge go1.12.5 into dev.boringcrypto.go1.12

2019-05-13T21:40:12+00:00

Change-Id: Ib678f7648515435e990b051579a6dda2e7e6a14e

[release-branch.go1.12] cmd/link/internal/ld: bump macOS and macOS SDK version to 10.9

2019-05-08T17:04:37+00:00

Satisfies the Apple Notary.

Fixes #30526

Change-Id: I91cf2d706a3ebe79bafdb759a0d32266ed6b9096
Reviewed-on: https://go-review.googlesource.com/c/go/+/175918
Run-TryBot: Elias Naur 
TryBot-Result: Gobot Gobot 
Reviewed-by: Keith Randall 
Reviewed-on: https://go-review.googlesource.com/c/go/+/175919
Reviewed-by: Brad Fitzpatrick