#11047: Provide call stacks in GHCi
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Reporter: simonmar | Owner: simonmar
Type: task | Status: closed
Priority: high | Milestone: 8.0.1
Component: GHCi | Version: 7.11
Resolution: fixed | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: #545, #4837, | Differential Rev(s): Phab:D1407,
#11100 | Phab:D1595, Phab:D1747
Wiki Page: |
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Comment (by Simon Marlow ):
In [changeset:"6cb860a9a154847906868ac0be93d750f99dac86/ghc"
6cb860a9/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="6cb860a9a154847906868ac0be93d750f99dac86"
Add -prof stack trace to assert
Summary:
So that assertion failures have full call stack information attached
when using `ghc -fexternal-interpreter -prof`. Here's one I just
collected by inserting a dummy assert in Happy:
```
*** Exception: Assertion failed
CallStack (from ImplicitParams):
assert, called at ./First.lhs:37:11 in main:First
CallStack (from -prof):
First.mkFirst (First.lhs:37:11-27)
First.mkFirst (First.lhs:37:11-93)
Main.main2.runParserGen.first (Main.lhs:107:48-56)
Main.main2.runParserGen.first (Main.lhs:107:27-57)
Main.main2.runParserGen (Main.lhs:(96,9)-(276,9))
Main.main2.runParserGen (Main.lhs:(90,9)-(276,10))
Main.main2.runParserGen (Main.lhs:(86,9)-(276,10))
Main.main2.runParserGen (Main.lhs:(85,9)-(276,10))
Main.main2 (Main.lhs:74:20-43)
Main.main2 (Main.lhs:(64,9)-(78,61))
Main.main (Main.lhs:57:9-18)
```
Test Plan: validate
Reviewers: erikd, hvr, austin, bgamari
Reviewed By: bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D1765
GHC Trac Issues: #11047
}}}
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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11047#comment:18
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