src/test/run-make-fulldeps/coverage-spanview-base/Makefile

   1 # needs-profiler-support
   2
   3 # ISSUE(76038): When targeting MSVC, Rust binaries built with both `-Z instrument-coverage` and
   4 # `-C link-dead-code` typically crash (with a seg-fault) or at best generate an empty `*.profraw`.
   5 # See ../coverage/coverage_tools.mk for more information.
   6
   7 -include ../coverage/coverage_tools.mk
   8
   9 BASEDIR=../coverage-spanview-base
  10 SOURCEDIR=../coverage
  11
  12 all: $(patsubst $(SOURCEDIR)/%.rs,%,$(wildcard $(SOURCEDIR)/*.rs))
  13
  14 # Ensure there are no `expected` results for tests that may have been removed or renamed
  15 .PHONY: clear_expected_if_blessed
  16 clear_expected_if_blessed:
  17 ifdef RUSTC_BLESS_TEST
  18         rm -rf expected_mir_dump.*/
  19 endif
  20
  21 -include clear_expected_if_blessed
  22
  23 %: $(SOURCEDIR)/%.rs
  24         # Compile the test program with coverage instrumentation and generate relevant MIR.
  25         $(RUSTC) $(SOURCEDIR)/$@.rs \
  26                         -Zinstrument-coverage \
  27                         -Clink-dead-code=$(LINK_DEAD_CODE) \
  28                         -Zdump-mir=InstrumentCoverage \
  29                         -Zdump-mir-spanview \
  30                         -Zdump-mir-dir="$(TMPDIR)"/mir_dump.$@
  31
  32         for path in "$(TMPDIR)"/mir_dump.$@/*; do \
  33                 echo $$path; \
  34                 file="$$(basename "$$path")"; \
  35                 echo $$file; \
  36                 urlescaped="$$("$(PYTHON)" $(BASEDIR)/escape_url.py $$file)" || exit $$?; \
  37                 echo $$urlescaped; \
  38                 sed -i -e '1a\
  39 <!--\
  40 \
  41 Preview this file as rendered HTML from the github source at:\
  42 https://htmlpreview.github.io/?https://github.com/rust-lang/rust/blob/master/src/test/run-make-fulldeps/coverage-spanview-base/expected_mir_dump.$@/'"$$urlescaped"'\
  43 \
  44 For revisions in Pull Requests (PR):\
  45   * Replace "rust-lang" with the github PR author\
  46   * Replace "master" with the PR branch name\
  47 \
  48 -->' "$$path"; \
  49         done && true # for/done ends in non-zero status
  50
  51 ifdef RUSTC_BLESS_TEST
  52         mkdir -p expected_mir_dump.$@
  53         cp "$(TMPDIR)"/mir_dump.$@/*InstrumentCoverage.0.html expected_mir_dump.$@/
  54 else
  55         # Check that the selected `mir_dump` files match what we expect (`--bless` refreshes `expected`)
  56         mkdir -p "$(TMPDIR)"/actual_mir_dump.$@
  57         rm -f "$(TMPDIR)"/actual_mir_dump.$@/*
  58         cp "$(TMPDIR)"/mir_dump.$@/*InstrumentCoverage.0.html "$(TMPDIR)"/actual_mir_dump.$@/
  59         $(DIFF) -r expected_mir_dump.$@/ "$(TMPDIR)"/actual_mir_dump.$@/
  60 endif