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path: root/src/cmd/link/internal/mips64/obj.go
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2026-03-27all: remove openbsd/mips64 portTobias Klauser
The openbsd/mips64 port is dead, remove the remaining code specific to that port and clean up build tags. Fixes #61546 Change-Id: I0328b7b76ce1ddacd3a526b3f4ae29eaa1254c3f Reviewed-on: https://go-review.googlesource.com/c/go/+/746480 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Joel Sing <joel@sing.id.au> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Carlos Amedee <carlos@golang.org>
2023-09-13cmd/link: round up default start address to alignmentCherry Mui
If the -R flag (the segment alignment) is specified but the -T flag (start address) is not, currently the default start address may be under-aligned, and some math in the linker may be broken. Round up the start address to align it. Fixes #62064. Change-Id: I3b98c9d0cf7d3cd944b9436a36808899d2e52572 Reviewed-on: https://go-review.googlesource.com/c/go/+/527822 Run-TryBot: Cherry Mui <cherryyz@google.com> Reviewed-by: Than McIntosh <thanm@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2023-02-22cmd/link: add internal linking support for calling SDYNIMPORT on mips64Joel Sing
Add internal linking support for calling SDYNIMPORT symbols on mips64. This adds code to generate appropriate PLT and GOT entries, along with the various dynamic entries needed for the dynamic loader. Updates #36435, #46178 Change-Id: I783e0d028510ca2bca82bcbc745f2375770813fe Reviewed-on: https://go-review.googlesource.com/c/go/+/415815 Reviewed-by: Rong Zhang <rongrong@oss.cipunited.com> Run-TryBot: Ian Lance Taylor <iant@google.com> Run-TryBot: Joel Sing <joel@sing.id.au> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Than McIntosh <thanm@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Ian Lance Taylor <iant@google.com>
2023-02-10cmd/link: improve error for missing SDYNIMPORT support on mips/mips64Than McIntosh
Issue an error (instead of crashing) when encountering a symbol that requires dynamic relocations on mips/mips64. The dynimport support is in progress, but is not done yet, so rather than crashing, print a message indicating that the feature is not yet implemented and exit. Fixes #58240. Change-Id: I9ad64c89e4f7b4b180964b35ad1d72d375f2df7f Reviewed-on: https://go-review.googlesource.com/c/go/+/466895 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Joel Sing <joel@sing.id.au> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Than McIntosh <thanm@google.com>
2023-01-31cmd/link: rename ELF struct fields to remove "elf" prefixIan Lance Taylor
While we're here rename setupplt to setupPLT. This is a pure naming change with no semantic change. Change-Id: Ib0312fb6568475b620dab7632438b4d25e4d9cc0 Reviewed-on: https://go-review.googlesource.com/c/go/+/463744 Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> Auto-Submit: Ian Lance Taylor <iant@golang.org>
2023-01-31cmd/link: make .dynamic section read-only for MIPS ELFIan Lance Taylor
For #36435 Change-Id: Ie733b641f20ca5bcee3784c088eb27699890a151 Reviewed-on: https://go-review.googlesource.com/c/go/+/463982 Reviewed-by: Joel Sing <joel@sing.id.au> Reviewed-by: Cherry Mui <cherryyz@google.com> Auto-Submit: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
2023-01-30cmd/link: refactor ELF hooks into ELFArch structIan Lance Taylor
This is a pure cleanup to bring the ELF hooks together. Change-Id: I01d5227c70f30e4a659dcd7904e7c247266e95b1 Reviewed-on: https://go-review.googlesource.com/c/go/+/463981 Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Joel Sing <joel@sing.id.au>
2022-08-08cmd/link: detect glibc vs musl ldso at link timeRuss Cox
Doing the test at link time lets us distribute one Linux toolchain that works on both glibc-based and musl-based Linux systems. The old way built a toolchain that only ran on one or the other. Fixes #54197. Change-Id: Iaae8c274c78e1091eee828a720b49646be9bfffe Reviewed-on: https://go-review.googlesource.com/c/go/+/420774 Auto-Submit: Russ Cox <rsc@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Russ Cox <rsc@golang.org>
2021-04-16internal/buildcfg: move build configuration out of cmd/internal/objabiRuss Cox
The go/build package needs access to this configuration, so move it into a new package available to the standard library. Change-Id: I868a94148b52350c76116451f4ad9191246adcff Reviewed-on: https://go-review.googlesource.com/c/go/+/310731 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> Reviewed-by: Austin Clements <austin@google.com> Reviewed-by: Jay Conrod <jayconrod@google.com>
2020-10-03cmd/link: add support for openbsd/mips64Joel Sing
Update #40995 Change-Id: I2cf9b85a960f479eaa59bf58081d03a0467bc2b8 Reviewed-on: https://go-review.googlesource.com/c/go/+/250582 Trust: Joel Sing <joel@sing.id.au> Run-TryBot: Joel Sing <joel@sing.id.au> Reviewed-by: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org>
2020-07-23[dev.link] cmd/link: stream external relocations on MIPS (32/64)Cherry Zhang
Change-Id: I47fbeb3a49754395dceff51af371638fd43350ff Reviewed-on: https://go-review.googlesource.com/c/go/+/244097 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Jeremy Faller <jeremy@golang.org>
2020-07-05[dev.link] cmd/link: emit ELF relocations in mmapCherry Zhang
Currently, ELF relocations are generated sequentially in the heap and flushed to output file periodically. In fact, in some cases, the output size of the relocation records can be easily computed, as a relocation entry has fixed size. We only need to count the number of relocation records to compute the size. Once the size is computed, we can mmap the output with the proper size, and directly write relocation records in the mapped memory. It also opens the possibility of writing relocations in parallel (not done in this CL). Note: on some architectures, a Go relocation may turn into multiple ELF relocations, which makes size calculation harder. This CL does not handle those cases, and it still writes sequentially in the heap there. Linking cmd/compile with external linking, name old time/op new time/op delta Asmb2 190ms ± 2% 141ms ± 4% -25.74% (p=0.000 n=10+10) name old alloc/op new alloc/op delta Asmb2_GC 66.8MB ± 0% 8.2MB ± 0% -87.79% (p=0.008 n=5+5) name old live-B new live-B delta Asmb2_GC 66.9M ± 0% 55.2M ± 0% -17.58% (p=0.008 n=5+5) Change-Id: If7056bbe909dc90033eef6b9c4891fcca310602c Reviewed-on: https://go-review.googlesource.com/c/go/+/240399 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
2020-06-05[dev.link] all: merge branch 'master' into dev.linkCherry Zhang
Merge conflicts are mostly recently changed nm/objdump output format and its tests. Resolved easily (mostly just using the format on master branch). Change-Id: I99d8410a9a02947ecf027d9cae5762861562baf5
2020-06-04all: fix dead links to inferno-os bitbucket repositoryTobias Klauser
Generated using: perl -i -npe 's#inferno-os/src/default#inferno-os/src/master#' $(git grep -l "inferno-os/src/default" | grep -v vendor) Change-Id: I4b6443bd09a8ea4c8aaeb40a1c73520d1f7ca648 Reviewed-on: https://go-review.googlesource.com/c/go/+/235821 Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Austin Clements <austin@google.com>
2020-05-26[dev.link] cmd/link: move asmb2 elf to generic handlingJeremy Faller
Change-Id: Ic3e90793f0ce49909c4f76df1272b25a1d61ebdf Reviewed-on: https://go-review.googlesource.com/c/go/+/234887 Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-05-21[dev.link] cmd/link: remove duplicate asmb codeJeremy Faller
Lots of the architecture specific code for asmb() is very simimar. As such, move to a common function. Change-Id: Id1fd50ee7bfa1bc9978e3f42ad08914b04cd677b Reviewed-on: https://go-review.googlesource.com/c/go/+/234683 Run-TryBot: Jeremy Faller <jeremy@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-05-18[dev.link] cmd/link: remove "2" from namesCherry Zhang
Change-Id: I203caaf9cbe7136cf2060de7dc91c28f6ced1ee2 Reviewed-on: https://go-review.googlesource.com/c/go/+/234038 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Jeremy Faller <jeremy@golang.org>
2020-05-13[dev.link] cmd/link: rename adddynrel2 back to adddynrelThan McIntosh
Minor renaming cleanup to get rid of a couple of old sym.Symbol adddynrel helpers and rename the current crop of adddynrel2 methods/functions back to adddynrel. Change-Id: I67e76decff84d603ef765f3b6a0cd78c7f3743ec Reviewed-on: https://go-review.googlesource.com/c/go/+/233523 Run-TryBot: Than McIntosh <thanm@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-05-12[dev.link] cmd/link: expand architecture support for elf asmb2 pathThan McIntosh
Adds in support for remaining architectures to the linker's ELF asmb2 path, along with deleting most of the older sym.Symbol based code. Change-Id: I67c96525db72b7d6dd3187cf2b9f6faddc296291 Reviewed-on: https://go-review.googlesource.com/c/go/+/233362 Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-05-08[dev.link] cmd/link: delete old reloc passCherry Zhang
We use the new one everywhere now. Change-Id: Ic9b1314e71e4666500cbf1689bb93839e040682a Reviewed-on: https://go-review.googlesource.com/c/go/+/232982 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Jeremy Faller <jeremy@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
2020-05-04[dev.link] cmd/link: use new reloc pass on MIPS64Cherry Zhang
Change-Id: I1c5da63d88e917877c70c1783bb350a697d6e207 Reviewed-on: https://go-review.googlesource.com/c/go/+/231937 Reviewed-by: Than McIntosh <thanm@google.com>
2020-04-06[dev.link] cmd/link: begin converting gentext to loader APIsThan McIntosh
Begin the job of converting the linker's "gentext" phase over to use loader APIs. This patch includes most architectures except for s390x and PPC (these will be added in subsequent patches, since they require a couple of loader changes first). Change-Id: Ic7f55c207dcdbbba657330ef007a72ff7c837416 Reviewed-on: https://go-review.googlesource.com/c/go/+/227017 Reviewed-by: Jeremy Faller <jeremy@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2019-10-09all: remove the nacl port (part 2, amd64p32 + toolchain)Brad Fitzpatrick
This is part two if the nacl removal. Part 1 was CL 199499. This CL removes amd64p32 support, which might be useful in the future if we implement the x32 ABI. It also removes the nacl bits in the toolchain, and some remaining nacl bits. Updates #30439 Change-Id: I2475d5bb066d1b474e00e40d95b520e7c2e286e1 Reviewed-on: https://go-review.googlesource.com/c/go/+/200077 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-19cmd/link: mmap output fileCherry Zhang
Use mmap for writing most of the output file content, specifically, the sections and segments. After layout, we already know the sizes and file offsets for the sections and segments. So we can just write the bytes by copying to a mmap'd backing store. The writing of the output file is split into two parts. The first part writes the sections and segments to the mmap'd region. The second part writes some extra content, for which we don't know the size, so we use direct file IO. This is in preparation for mmap'ing input files read-only. Change-Id: I9f3b4616a9f96bfd5c940d74c50aacd6d330f7d2 Reviewed-on: https://go-review.googlesource.com/c/go/+/170738 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2019-03-01cmd/link: remove unused flag -D (FlagDataAddr)Alex Tokarev
FlagDataAddr is a vestige from git commit 0cafb9e (2008; no Gerrit CL number). It was never used but unfortunately setting it would cause a spurious warning: warning: -D<value> is ignored because of -R0x1000 yet if -R was unset e.g. -R=0, the linker would crash with a divide by zero runtime panic. Fixes #28921 Change-Id: Ia910399bc269337a9a860f3a26cd48fae6e62724 Reviewed-on: https://go-review.googlesource.com/c/151021 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-10-21cmd/link: move Headtype global to ctxtDavid Crawshaw
For #22095 Change-Id: Idcfdfe8a94db8626392658bb93429454238f648a Reviewed-on: https://go-review.googlesource.com/70835 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-04cmd/link: remove coutbuf global variableDavid Crawshaw
Begin passing coutbuf by as a parameter. To make the initial plumbing pass easier, it is also a field in the standard ctxt parameter. Consolidate the byte writing functions into the OutBuf object. The result is less architecture-dependent initialization. To avoid plumbing out everywhere we want to report an error, move handling of out file deletion to an AtExit function. For #22095 Change-Id: I0863695241562e0662ae3669666c7922b8c846f9 Reviewed-on: https://go-review.googlesource.com/67318 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-03cmd/link: remove SysArch global variableDavid Crawshaw
For #22095 Change-Id: I9d1f0d93f8fd701a24af826dc903eea2bc235de2 Reviewed-on: https://go-review.googlesource.com/67317 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-04-19cmd/internal/objabi: extract shared functionality from objMatthew Dempsky
Now only cmd/asm and cmd/compile depend on cmd/internal/obj. Changing the assembler backends no longer requires reinstalling cmd/link or cmd/addr2line. There's also now one canonical definition of the object file format in cmd/internal/objabi/doc.go, with a warning to update all three implementations. objabi is still something of a grab bag of unrelated code (e.g., flag and environment variable handling probably belong in a separate "tool" package), but this is still progress. Fixes #15165. Fixes #20026. Change-Id: Ic4b92fac7d0d35438e0d20c9579aad4085c5534c Reviewed-on: https://go-review.googlesource.com/40972 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2016-10-19cmd/link, cmd/internal/obj: stop exporting various namesIan Lance Taylor
Just happened to notice that these names (funcAlign and friends) are never referenced outside their package, so no need to export them. Change-Id: I4bbdaa4b0ef330c3c3ef50a2ca39593977a83545 Reviewed-on: https://go-review.googlesource.com/31496 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-09-16cmd/link: skip arch-specific main functionDavid Crawshaw
Add some notes to main.go on what happens where. Change-Id: I4fb0b6c280e5f990ddc5d749267372b86870af6d Reviewed-on: https://go-review.googlesource.com/28970 TryBot-Result: Gobot Gobot <gobot@golang.org> Run-TryBot: David Crawshaw <crawshaw@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-09-16cmd/link: attempt to rationalize linkmode initDavid Crawshaw
This CL gives Linkmode a type, switches it to the standard flag handling mechanism, and deduplicates some logic. There is a semantic change in this CL. Previously if a link was invoked explicitly with -linkmode=internal, any condition that forced external linking would silently override this and use external linking. Instead it now fails with a reason why. I believe this is an improvement, but will change it back if there's disagreement. Fixes #12848 Change-Id: Ic80e341fff65ecfdd2b6fdd6079674cc7210fc5f Reviewed-on: https://go-review.googlesource.com/28971 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-09-10cmd: fix format strings used with obj.HeadtypeJosh Bleecher Snyder
Found by vet. Introduced by CL 28853. Change-Id: I3199e0cbdb1c512ba29eb7e4d5c1c98963f5a954 Reviewed-on: https://go-review.googlesource.com/28957 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-09-09cmd: use obj.GOOS, obj.GOARCH, etcDavid Crawshaw
As cmd/internal/obj is coordinating the definition of GOOS, GOARCH, etc across the compiler and linker, turn its functions into globals and use them everywhere. Change-Id: I5db5addda3c6b6435c37fd5581c7c3d9a561f492 Reviewed-on: https://go-review.googlesource.com/28854 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-09-09cmd/link, cmd/internal/obj: give Headtype a typeDavid Crawshaw
Separate out windows/windowsgui properly so we are not encoding some of the Headtype value in a separate headstring global. Remove one of the two copies of the variable from cmd/link. Remove duplicate string to headtype list. Change-Id: Ifa20fb9652a1dc95161e154aac11f15ad0f709d0 Reviewed-on: https://go-review.googlesource.com/28853 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-08-29all: fix obsolete inferno-os linksEmmanuel Odeke
Fixes #16911. Fix obsolete inferno-os links, since code.google.com shutdown. This CL points to the right files by replacing http://code.google.com/p/inferno-os/source/browse with https://bitbucket.org/inferno-os/inferno-os/src/default To implement the change I wrote and ran this script in the root: $ grep -Rn 'http://code.google.com/p/inferno-os/source/browse' * \ | cut -d":" -f1 | while read F;do perl -pi -e \ 's/http:\/\/code.google.com\/p\/inferno-os\/source\/browse/https:\/\/bitbucket.org\/inferno-os\/inferno-os\/src\/default/g' $F;done I excluded any cmd/vendor changes from the commit. Change-Id: Iaaf828ac8f6fc949019fd01832989d00b29b6749 Reviewed-on: https://go-review.googlesource.com/27994 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-22cmd/link: turn some globals into flag pointer variablesMichael Matloob
This moves many of the flag globals into main and assigns them to their flag.String/Int64/... directly. Updates #16818 Change-Id: Ibbff44a273bbc5cb7228e43f147900ee8848517f Reviewed-on: https://go-review.googlesource.com/27473 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-08-21cmd/link/internal: remove global Ctxt variableMichael Matloob
This change threads the *ld.Link Ctxt variable through code in arch-specific packages. This removes all remaining uses of Ctxt, so remove the global variable too. This CL continues the work in golang.org/cl/27408 Updates #16818 Change-Id: I5f4536847a1825fd0b944824e8ae4e122ec0fb78 Reviewed-on: https://go-review.googlesource.com/27459 Run-TryBot: Michael Matloob <matloob@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-21cmd/link/internal: thread *ld.Link through callsMichael Matloob
Ctxt is a global defined in cmd/link/internal/ld of type *ld.Link. Start threading a *ld.Link through function calls instead of relying on the global variable. Ctxt is still used as a global by the architecture-specific packages, but I plan to fix that in a subsequent CL. Change-Id: I77a3a58bd396fafd959fa1d8b1c83008a9f5a7fb Reviewed-on: https://go-review.googlesource.com/27408 Run-TryBot: Michael Matloob <matloob@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
2016-05-02all: make copyright headers consistent with one space after periodEmmanuel Odeke
Follows suit with https://go-review.googlesource.com/#/c/20111. Generated by running $ grep -R 'Go Authors. All' * | cut -d":" -f1 | while read F;do perl -pi -e 's/Go Authors. All/Go Authors. All/g' $F;done The code in cmd/internal/unvendor wasn't changed. Fixes #15213 Change-Id: I4f235cee0a62ec435f9e8540a1ec08ae03b1a75f Reviewed-on: https://go-review.googlesource.com/21819 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-05-01cmd/link, runtime: add external linking support for linux/mips64xCherry Zhang
Fixes #12560 Change-Id: Ic2004fc7b09f2dbbf83c41f8c6307757c0e1676d Reviewed-on: https://go-review.googlesource.com/19803 Reviewed-by: Minux Ma <minux@golang.org>
2016-04-07cmd: add new common architecture representationMatthew Dempsky
Information about CPU architectures (e.g., name, family, byte ordering, pointer and register size) is currently redundantly scattered around the source tree. Instead consolidate the basic information into a single new package cmd/internal/sys. Also, introduce new sys.I386, sys.AMD64, etc. names for the constants '8', '6', etc. and replace most uses of the latter. The notable exceptions are a couple of error messages that still refer to the old char-based toolchain names and function reltype in cmd/link. Passes toolstash/buildall. Change-Id: I8a6f0cbd49577ec1672a98addebc45f767e36461 Reviewed-on: https://go-review.googlesource.com/21623 Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-03-03cmd/link: add Minalign field to ld.ArchMichael Munday
The new Minalign field sets the minimum alignment for all symbols. This is required for the upcoming s390x port which requires symbols be 2-byte aligned for efficient relative addressing. All preexisting architectures have Minalign set to 1 which means that this commit should have no effect. I tested values of 2, 4 and 8 on linux amd64 and the tests appear to pass. Increasing Minalign to 16 appears to break the runtime. I think this is due to assumptions made about the layout of module data. toolstash -cmp on linux amd64 shows no changes due to this commit. Resolves #14604 Change-Id: I0fe042d52c4e4732eba5fabcd0c31102a2408764 Reviewed-on: https://go-review.googlesource.com/20149 Reviewed-by: Minux Ma <minux@golang.org> Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-03-02cmd/link: add array append version of methodsDavid Crawshaw
Used by DWARF writer changes in a followup CL. Change-Id: I6ec40dcfeaba909d9b8f6cf2603bc5b85c1fa873 Reviewed-on: https://go-review.googlesource.com/20073 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-11-12cmd/link: added support for mips64{,le}Yao Zhang
Only internal linking without cgo is supported for now. Change-Id: Ie6074a8ff3ec13605b72028f2d60758034f87185 Reviewed-on: https://go-review.googlesource.com/14444 Reviewed-by: Minux Ma <minux@golang.org>
generated by cgit v1.3 (git 2.53.0) at 2026-04-16 03:10:05 +0000