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Merged
bradfitz merged 14 commits into from
Aug 11, 2026
+1,448 −578
Merged

Go 1.27: pull in upstream changes #175

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c498b9f
[release-branch.go1.27] all: update x/net
cherrymui Jul 31, 2026
95d89e6
[release-branch.go1.27] cmd/compile: use pointer-size alignment for s…
bradfitz Jul 31, 2026
2cd21e9
[release-branch.go1.27] runtime/cgo: add back indirections to C funct…
cherrymui Aug 3, 2026
ea9653f
[release-branch.go1.27] net/http: enable HTTP/2 on http2.ConfigureServer
neild May 12, 2026
0d586ce
[release-branch.go1.27] runtime: fix frame pointer adjustment around …
nsrip-dd Jul 31, 2026
83223a9
[release-branch.go1.27] cmd/compile: fix mips64le bigger than 32bits …
Jorropo Jul 28, 2026
434ebde
[release-branch.go1.27] cmd/compile: do not elide riscv64 sign extens…
Jorropo Jul 27, 2026
14e2c88
[release-branch.go1.27] cmd/compile: fix prove to generate Const64 fo…
Jorropo Jun 6, 2026
e781256
[release-branch.go1.27] cmd/compile: fix time traveling proofs in prove
Jorropo Jul 22, 2026
bd62f0c
[release-branch.go1.27] net/url: avoid quadratic complexity in resolv…
jitsu-net Jul 21, 2026
bcdba48
[release-branch.go1.27] html/template: fix JavaScript regexp tracking
thatnealpatel Jul 28, 2026
b4e4c81
Merge remote-tracking branch 'upstream/release-branch.go1.27' into ta…
bradfitz Aug 11, 2026
528b871
net/http/internal/http2: let Transport's request-write goroutine exit…
bradfitz Jul 29, 2026
42b0e69
net/http/internal/http2: release handler write buffers when idle
bradfitz Aug 6, 2026
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26 changes: 26 additions & 0 deletions src/cmd/cgo/internal/testcshared/cshared_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -942,3 +942,29 @@ func TestIssue68411(t *testing.T) {
t.Error("missing functions")
}
}

func TestSymbolicFunctions(t *testing.T) {
// Test that we can build a c-shared library with -Wl,-Bsymbolic-functions,
// see issue 80632.
globalSkip(t)
testenv.MustHaveGoBuild(t)
testenv.MustHaveCGO(t)
testenv.MustHaveBuildMode(t, "c-shared")
if GOOS != "linux" {
t.Skip("Skipping on non-Linux OS")
}

t.Parallel()

tmpdir := t.TempDir()
libname := filepath.Join(tmpdir, "libbsymbolic.a")

run(t,
nil,
"go", "build",
"-buildmode=c-shared",
"-installsuffix", "testcshared",
"-ldflags=-extldflags=-Wl,-Bsymbolic-functions",
"-o", libname, "./libgo",
)
}
3 changes: 2 additions & 1 deletion src/cmd/compile/internal/ssa/_gen/MIPS64.rules
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Original file line number Diff line number Diff line change
Expand Up @@ -227,7 +227,8 @@
(Leq64U x y) => (XOR (MOVVconst [1]) (SGTU x y))

(OffPtr [off] ptr:(SP)) && is32Bit(off) => (MOVVaddr [int32(off)] ptr)
(OffPtr [off] ptr) => (ADDVconst [off] ptr)
(OffPtr [off] ptr) && is32Bit(off) => (ADDVconst [off] ptr)
(OffPtr [off] ptr) && !is32Bit(off) => (ADDV ptr (MOVVconst <typ.UInt64> [off]))

(Addr {sym} base) => (MOVVaddr {sym} base)
(LocalAddr <t> {sym} base mem) && t.Elem().HasPointers() => (MOVVaddr {sym} (SPanchored base mem))
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24 changes: 13 additions & 11 deletions src/cmd/compile/internal/ssa/_gen/RISCV64.rules
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Original file line number Diff line number Diff line change
Expand Up @@ -622,17 +622,19 @@
(MOVBUreg x:(Select0 (LoweredAtomicCas64 _ _ _ _))) => (MOVDreg x)

// Avoid sign extension after word arithmetic.
(MOVWreg x:(ADDIW _)) => (MOVDreg x)
(MOVWreg x:(SUBW _ _)) => (MOVDreg x)
(MOVWreg x:(NEGW _)) => (MOVDreg x)
(MOVWreg x:(MULW _ _)) => (MOVDreg x)
(MOVWreg x:(DIVW _ _)) => (MOVDreg x)
(MOVWreg x:(DIVUW _ _)) => (MOVDreg x)
(MOVWreg x:(REMW _ _)) => (MOVDreg x)
(MOVWreg x:(REMUW _ _)) => (MOVDreg x)
(MOVWreg x:(ROLW _ _)) => (MOVDreg x)
(MOVWreg x:(RORW _ _)) => (MOVDreg x)
(MOVWreg x:(RORIW _)) => (MOVDreg x)
// Careful to not omit the sign extension in cases where regalloc
// might restore without it, see issue 80577.
(MOVWreg x:(ADDIW _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(SUBW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(NEGW _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(MULW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(DIVW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(DIVUW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(REMW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(REMUW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(ROLW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(RORW _ _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)
(MOVWreg x:(RORIW _)) && (x.Type.Size() == 8 || (x.Type.Size() == 4 && x.Type.IsSigned())) => (MOVDreg x)

// Fold double extensions.
(MOVBreg x:(MOVBreg _)) => (MOVDreg x)
Expand Down
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