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addCoverageInstrumentation: Set NIX_CFLAGS_COMPILE as an attribute

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This allows it to show up in nix-shell.
This commit is contained in:
Eelco Dolstra 2014-02-05 12:49:53 +01:00
parent 58a863268a
commit bea2b3c517
1 changed files with 14 additions and 17 deletions
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31
pkgs/stdenv/adapters.nix
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@ -231,8 +231,17 @@ rec {
programs like lcov to produce pretty-printed reports.
*/
addCoverageInstrumentation = stdenv:
addAttrsToDerivation
{
# Object files instrumented with coverage analysis write runtime
# coverage data to <path>/<object>.gcda, where <path> is the
# location where gcc originally created the object file. That
# would be /tmp/nix-build-<something>, which will be long gone by
# the time we run the program. Furthermore, the <object>.gcno
# files created at compile time are also written there. And to
# make nice coverage reports with lcov, we need the source code.
# So we have to use the `keepBuildTree' adapter as well.
let stdenv' = cleanupBuildTree (keepBuildTree stdenv); in
{ mkDerivation = args: stdenv'.mkDerivation (args // {
NIX_CFLAGS_COMPILE = toString (args.NIX_CFLAGS_COMPILE or "") + " -O0 --coverage";
postUnpack =
''
# This is an uberhack to prevent libtool from removing gcno
@ -242,21 +251,9 @@ rec {
for i in $(find -name ltmain.sh); do
substituteInPlace $i --replace '*.$objext)' '*.$objext | *.gcno)'
done
export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -O0 --coverage"
'';
}
# Object files instrumented with coverage analysis write
# runtime coverage data to <path>/<object>.gcda, where <path>
# is the location where gcc originally created the object
# file. That would be /tmp/nix-build-<something>, which will
# be long gone by the time we run the program. Furthermore,
# the <object>.gcno files created at compile time are also
# written there. And to make nice coverage reports with lcov,
# we need the source code. So we have to use the
# `keepBuildTree' adapter as well.
(cleanupBuildTree (keepBuildTree stdenv));
'' + args.postUnpack or "";
});
};
/* Replace the meta.maintainers field of a derivation. This is useful