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Michael Pratt b6e81a5129 debug/buildinfo: read data in chunks
Rather than reading the entire data segment into memory, read it in
smaller chunks to keep memory usage low.

For typically Go binaries, this doesn't matter much. For those, we read
the .go.buildinfo section, which should be quite small. But for non-Go
binaries (or Go binaries with section headers stripped), we search the
entire loadable data segment, which could be quite large.

This reduces the time for `go version` on a 2.5GB non-Go binary from
~1.2s and 1GB RSS (!!) to ~1s and ~25MB RSS.

Fixes #68592.

Change-Id: I9218854c5b6f2aa1331f561ab0850a9fd62ef23b
Reviewed-on: https://go-review.googlesource.com/c/go/+/601459
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2024-07-31 14:26:34 +00:00
.github .github/ISSUE_TEMPLATE/03-gopls.yml: use textarea for gopls version 2024-05-24 17:09:04 +00:00
api encoding: add TextAppender and BinaryAppender 2024-07-30 14:22:50 +00:00
doc encoding: add TextAppender and BinaryAppender 2024-07-30 14:22:50 +00:00
lib/time lib/time: use consistent directory in mkzip usage message 2024-03-04 17:32:07 +00:00
misc misc/ios: rework exec wrapper to only support simulator 2024-06-18 16:32:49 +00:00
src debug/buildinfo: read data in chunks 2024-07-31 14:26:34 +00:00
test cmd/compile: add "deadlocals" pass to remove unused locals 2024-07-30 15:46:27 +00:00
.gitattributes
.gitignore runtime,internal: move runtime/internal/sys to internal/runtime/sys 2024-07-23 19:05:35 +00:00
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README.md README: fix CC BY license name 2024-07-22 17:45:27 +00:00
SECURITY.md SECURITY.md: update the Reporting a Vulnerability link 2023-09-22 21:17:24 +00:00

The Go Programming Language

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