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authorKeith Randall <khr@golang.org>2014-01-23 12:47:30 -0800
committerKeith Randall <khr@golang.org>2014-01-23 12:47:30 -0800
commit814c91a8ca94dda5e987e98ded36343b0ef036f7 (patch)
tree6d9afdf59828757b2c1c3f05f4253e13b160b5cb /src/pkg/runtime/traceback_arm.c
parent15fa970f1a9fa2e9f38a781a1549ab205f93c6d8 (diff)
downloadgo-814c91a8ca94dda5e987e98ded36343b0ef036f7.tar.gz
runtime: Print elision message if we skipped frames on traceback.
Fixes bug 7180 R=golang-codereviews, dvyukov CC=golang-codereviews, gri https://codereview.appspot.com/55810044
Diffstat (limited to 'src/pkg/runtime/traceback_arm.c')
-rw-r--r--src/pkg/runtime/traceback_arm.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/pkg/runtime/traceback_arm.c b/src/pkg/runtime/traceback_arm.c
index 8a3685e76..3c23cd9fc 100644
--- a/src/pkg/runtime/traceback_arm.c
+++ b/src/pkg/runtime/traceback_arm.c
@@ -231,6 +231,8 @@ runtime·printcreatedby(G *gp)
void
runtime·traceback(uintptr pc, uintptr sp, uintptr lr, G *gp)
{
+ int32 n;
+
if(gp->status == Gsyscall) {
// Override signal registers if blocked in system call.
pc = gp->syscallpc;
@@ -240,8 +242,11 @@ runtime·traceback(uintptr pc, uintptr sp, uintptr lr, G *gp)
// Print traceback. By default, omits runtime frames.
// If that means we print nothing at all, repeat forcing all frames printed.
- if(runtime·gentraceback(pc, sp, lr, gp, 0, nil, 100, nil, nil, false) == 0)
- runtime·gentraceback(pc, sp, lr, gp, 0, nil, 100, nil, nil, true);
+ n = runtime·gentraceback(pc, sp, lr, gp, 0, nil, TracebackMaxFrames, nil, nil, false);
+ if(n == 0)
+ runtime·gentraceback(pc, sp, lr, gp, 0, nil, TracebackMaxFrames, nil, nil, true);
+ if(n == TracebackMaxFrames)
+ runtime·printf("...additional frames elided...\n");
runtime·printcreatedby(gp);
}