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| author | Ian Lance Taylor <iant@golang.org> | 2025-12-11 15:24:01 -0800 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2025-12-11 19:35:31 -0800 |
| commit | d9959d5c8039914f2aff7ee4e0c4bb732d93708f (patch) | |
| tree | 9cd1bbd682e4b3de4b20171acd0ad32b0dcc747a | |
| parent | c0c5893de85080ac440f36c3e18a67a6435f742f (diff) | |
| download | go-x-website-d9959d5c8039914f2aff7ee4e0c4bb732d93708f.tar.xz | |
doc/go1.26: add notes about linker changes
For golang/go#75005
For golang/go#76038
Change-Id: I1c5925e71c0c84d1e1ed2ec9e493e14056f22b44
Reviewed-on: https://go-review.googlesource.com/c/website/+/729520
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
| -rw-r--r-- | _content/doc/go1.26.md | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/_content/doc/go1.26.md b/_content/doc/go1.26.md index cb1371c6..044dad1f 100644 --- a/_content/doc/go1.26.md +++ b/_content/doc/go1.26.md @@ -207,6 +207,34 @@ On 64-bit ARM-based Windows (the `windows/arm64` port), the linker now supports linking mode of cgo programs, which can be requested with the `-ldflags=-linkmode=internal` flag. +There are several minor changes to executable files. These changes do +not affect running Go programs. They may affect programs that analyze +Go executables, and they may affect people who use external linking +mode with custom linker scripts. + + - The `moduledata` structure is now in its own section, named + `go.module`. + - The `moduledata` `cutab` field, which is a slice, now has the + correct length; previously the length was four times too large. + - The `pcHeader` found at the start of the `.gopclntab` section no + longer records the start of the text section. That field is now + always zero. + - That `pcHeader` change was made so that the `.gopclntab` section + no longer contains any relocations. On platforms that support + relro, the section has moved from the relro segment to the rodata + segment. + - The funcdata symbols and the findfunctab have moved from the + `.rodata` section to the `.gopclntab` section. + - The `.gosymtab` section has been removed. It was previously always + present but empty. + - When using internal linking, ELF sections now appear in the + section header list sorted by address. The previous order was + somewhat unpredictable. + +The references to section names here use the ELF names as seen on +Linux and other systems. The Mach-O names as seen on Darwin start with +a double underscore and do not contain any dots. + ## Bootstrap {#bootstrap} <!-- go.dev/issue/69315 --> |