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xgo-dev / llgo Public

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runtime: LLGo-owned frame-pointer unwinder (Stage 5)#2019

Closed

cpunion wants to merge 57 commits into

xgo-dev:mainxgo-dev/llgo:mainfrom

cpunion:codex/stage5-unwindercpunion/llgo:codex/stage5-unwinderCopy head branch name to clipboard

Conversation Commits57 (57)Checks Files changed

Closed

runtime: LLGo-owned frame-pointer unwinder (Stage 5)#2019
cpunion wants to merge 57 commits into
xgo-dev:mainfrom
cpunion:codex/stage5-unwinder

Commits

Commits on Jul 8, 2026

build: add Go-style pclntab findfunc index
cpunion
committed
ssa: emit DCE-safe function metadata
cpunion
committed
runtime: add line info for stack frames
cpunion
committed
runtime: add statement line caller frames
cpunion
committed
runtime: compress funcinfo table
cpunion
committed
test: cover indirect runtime caller paths
cpunion
committed
cl: narrow runtime caller tracking
cpunion
committed
runtime: add compact pc-line funcinfo table
cpunion
committed
runtime: optimize FuncForPC metadata lookup
cpunion
committed
runtime: slim FuncForPC cache hot path
cpunion
committed
cl: make pc-line labels clone-safe
cpunion
committed
runtime: guard funcinfo table initialization
cpunion
committed
runtime: fix funcinfo entry pc line metadata
cpunion
committed
runtime: publish funcinfo records for live stubs
cpunion
committed
runtime: skip ELF stub-site records during LTO
cpunion
committed
runtime: reduce funcinfo lookup initialization cost
cpunion
committed
test: cover runtime caller metadata edges
cpunion
committed
runtime: speed up funcinfo entry lookup
cpunion
committed
test: cover pcline metadata in dev lto coverage
cpunion
committed
runtime: speed up funcinfo hot paths
cpunion
committed
runtime: avoid FuncForPC cache thrashing
cpunion
committed
runtime: use Go-style funcinfo find index
cpunion
committed
runtime: use static funcinfo symbol index
cpunion
committed
benchmark: add runtime funcinfo benchmark harness

cpunion
and
claude
committed
build,cl: emit funcinfo site sections on Mach-O

cpunion
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claude
committed
runtime: cut funcinfo first-use latency and index degradation

cpunion
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claude
committed
runtime: memoize synthetic PCs in Caller/Callers hot paths

cpunion
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claude
committed
runtime: reuse FuncForPC cache in Frames.Next; document LTO inline-copy limit

cpunion
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claude
committed
build: document why body-embedded site records resist LTO dedup

cpunion
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claude
committed
doc: design for link-phase ftab/findfunctab generation

cpunion
and
claude
committed
runtime: nanosecond monotonic clock on darwin and linux

cpunion
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claude
committed
build: disable funcinfo metadata emission in debug builds

cpunion
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claude
committed
build,ssa,cl: gate only site records off in debug builds

cpunion
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claude
committed
runtime: keep unresolved-entry frames out of the FuncForPC cache

cpunion
and
claude
committed
build: add LLGO_FUNCINFO_SITES to toggle site records independently

cpunion
and
claude
committed
ci: make patch coverage reflect product code; cover pclntab edge paths

cpunion
and
claude
committed
ci: upload coverage from both platforms

cpunion
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claude
committed
build: sweep funcinfo emission across OS/pointer-size/content matrix

cpunion
and
claude
committed
ci: exclude dev tools and test scaffolding from coverage

cpunion
and
claude
committed
chore/pclnpost: link-phase ftab prototype (P1)

cpunion
and
claude
committed
runtime,chore/pclnpost: P2 — prebuilt table write-back and zero-copy adoption

cpunion
and
claude
committed
build,runtime,pclnpost: P2 complete — automatic link-phase functab

cpunion
and
claude
committed
pclnpost: resolve Mach-O bind-encoded site records into the prebuilt table

cpunion
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claude
committed
benchmark: add plain ordinary-code scenario to runtime_funcinfo

cpunion
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claude
committed
doc: record P3 findings in pclntab-linkphase design

cpunion
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claude
committed
benchmark: keep full LTO from constant-folding the plain fib probe

cpunion
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claude
committed
runtime: pre-warm the prebuilt function table at startup

cpunion
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claude
committed
benchmark: scale dimensions — call depth and big-method scenarios

cpunion
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claude
committed
pclnpost,runtime: fix two scale cliffs found by the 96x96 benchmarks

cpunion
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claude
committed
pclnpost,runtime: spill the prebuilt blob into the stub section on overflow

cpunion
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claude
committed
runtime: exact-entry FuncForPC lookup must not require pc alignment

cpunion
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claude
committed
pclnpost: never degrade to a table with stub gaps

cpunion
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claude
committed
pclnpost: unit-test record decoding, dedupe, ELF rewrite and fixup surgery

cpunion
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claude
committed
pclnpost,build: Mach-O fixture tests; only re-sign signed binaries

cpunion
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claude
committed
runtime,ssa,cl: LLGo-owned frame-pointer unwinder (Stage 5)

cpunion
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claude
committed
test: goldens and probes for the FP unwinder

cpunion
and
claude
committed
doc: stage5 invariants, diagnostic traps and merge queue
cpunion
committed

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