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runtime, testing: support Goexit, SkipNow, FailNow

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Keep a pending Goexit separate from the active panic state so recovered
deferred panics do not cancel the original Goexit unwind. Goexit should
also ignore -panic=trap, since it is not a panic.

Wire testing.FailNow and SkipNow through runtime.Goexit, and run tests
and benchmarks in goroutines. This lets Goexit terminate the user
function without skipping test bookkeeping. Add Goexit/recover coverage
and enable crypto/ecdh in the Linux stdlib test list.
This commit is contained in:
Jake Bailey
2026-07-03 16:30:32 -07:00
committed by Ron Evans
parent fb1bf2e6bf
commit 16eefc59eb
15 changed files with 201 additions and 23 deletions
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compiler/defer.go
+7 -3
View File
@@ -116,8 +116,8 @@ func (b *builder) createLandingPad() {
func (b *builder) createCheckpoint(ptr llvm.Value) llvm.Value {
// Construct inline assembly equivalents of setjmp.
// The assembly works as follows:
// * All registers (both callee-saved and caller saved) are clobbered
// after the inline assembly returns.
// * Registers are either clobbered or, on 386, saved for longjmp to
// restore if the ABI requires them to survive calls.
// * The assembly stores the address just past the end of the assembly
// into the jump buffer.
// * The return value (eax, rax, r0, etc) is set to zero in the inline
@@ -130,8 +130,12 @@ func (b *builder) createCheckpoint(ptr llvm.Value) llvm.Value {
asmString = `
xorl %eax, %eax
movl $$1f, 4(%ebx)
movl %ebx, 8(%ebx)
movl %esi, 12(%ebx)
movl %edi, 16(%ebx)
movl %ebp, 20(%ebx)
1:`
constraints = "={eax},{ebx},~{ebx},~{ecx},~{edx},~{esi},~{edi},~{ebp},~{xmm0},~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{fpsr},~{fpcr},~{flags},~{dirflag},~{memory}"
constraints = "={eax},{ebx},~{ecx},~{edx},~{xmm0},~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{fpsr},~{fpcr},~{flags},~{dirflag},~{memory}"
// This doesn't include the floating point stack because TinyGo uses
// newer floating point instructions.
case "x86_64":
compiler/testdata/defer-cortex-m-qemu.ll
Vendored
+3 -3
View File
@@ -3,7 +3,7 @@ source_filename = "defer.go"
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv7m-unknown-unknown-eabi"
%runtime.deferFrame = type { ptr, ptr, [0 x ptr], ptr, i8, %runtime._interface, ptr }
%runtime.deferFrame = type { ptr, ptr, [0 x ptr], ptr, i8, %runtime._interface, ptr, i1 }
%runtime._interface = type { ptr, ptr }
; Function Attrs: nounwind
@@ -111,9 +111,9 @@ rundefers.end3: ; preds = %rundefers.loophead6
; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #2
declare void @runtime.setupDeferFrame(ptr dereferenceable_or_null(28), ptr, ptr) #1
declare void @runtime.setupDeferFrame(ptr dereferenceable_or_null(32), ptr, ptr) #1
declare void @runtime.destroyDeferFrame(ptr dereferenceable_or_null(28), ptr) #1
declare void @runtime.destroyDeferFrame(ptr dereferenceable_or_null(32), ptr) #1
; Function Attrs: nounwind
define internal void @"main.deferSimple$1"(ptr %context) unnamed_addr #0 {