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| author | Simon Marlow <marlowsd@gmail.com> | 2016-01-07 11:36:41 +0000 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2016-01-08 08:49:26 +0000 |
| commit | 6be09e884730f19da6c24fc565980f515300e53c (patch) | |
| tree | b7e0e13c4b4acd138d4da91013562cd5637db865 /ghc.mk | |
| parent | c78fedde7055490ca6f6210ada797190f3c35d87 (diff) | |
| download | haskell-6be09e884730f19da6c24fc565980f515300e53c.tar.gz | |
Enable stack traces with ghci -fexternal-interpreter -prof
Summary:
The main goal here is enable stack traces in GHCi. After this change,
if you start GHCi like this:
ghci -fexternal-interpreter -prof
(which requires packages to be built for profiling, but not GHC
itself) then the interpreter manages cost-centre stacks during
execution and can produce a stack trace on request. Call locations
are available for all interpreted code, and any compiled code that was
built with the `-fprof-auto` familiy of flags.
There are a couple of ways to get a stack trace:
* `error`/`undefined` automatically get one attached
* `Debug.Trace.traceStack` can be used anywhere, and prints the current
stack
Because the interpreter is running in a separate process, only the
interpreted code is running in profiled mode and the compiler itself
isn't slowed down by profiling.
The GHCi debugger still doesn't work with -fexternal-interpreter,
although this patch gets it a step closer. Most of the functionality
of breakpoints is implemented, but the runtime value introspection is
still not supported.
Along the way I also did some refactoring and added type arguments to
the various remote pointer types in `GHCi.RemotePtr`, so there's
better type safety and documentation in the bridge code between GHC
and ghc-iserv.
Test Plan: validate
Reviewers: bgamari, ezyang, austin, hvr, goldfire, erikd
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D1747
GHC Trac Issues: #11047, #11100
Diffstat (limited to 'ghc.mk')
| -rw-r--r-- | ghc.mk | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -563,7 +563,10 @@ BOOT_PKG_CONSTRAINTS := \ --constraint "$p == $(shell grep -i "^Version:" libraries/$d/$p.cabal | sed "s/[^0-9.]//g")")) # The actual .a and .so/.dll files: needed for dependencies. -ALL_STAGE1_LIBS = $(foreach lib,$(PACKAGES_STAGE1),$(libraries/$(lib)_dist-install_v_LIB)) +$(foreach way,$(GhcLibWays),$(eval ALL_STAGE1_$(way)_LIBS = $$(foreach lib,$$(PACKAGES_STAGE1),$$(libraries/$$(lib)_dist-install_$(way)_LIB)))) + +ALL_STAGE1_LIBS = $(ALL_STAGE1_v_LIBS) + ifeq "$(BuildSharedLibs)" "YES" ALL_STAGE1_LIBS += $(foreach lib,$(PACKAGES_STAGE1),$(libraries/$(lib)_dist-install_dyn_LIB)) endif |