src/test/run-make/remap-path-prefix-dwarf/Makefile

   1 # This test makes sure that --remap-path-prefix has the expected effects on paths in debuginfo.
   2 # It tests several cases, each of them has a detailed description attached to it.
   3
   4 # ignore-windows
   5
   6 SRC_DIR := $(abspath .)
   7 SRC_DIR_PARENT := $(abspath ..)
   8
   9 include ../../run-make-fulldeps/tools.mk
  10
  11 all: \
  12   abs_input_outside_working_dir \
  13   rel_input_remap_working_dir \
  14   rel_input_remap_working_dir_parent \
  15   rel_input_remap_working_dir_child \
  16   abs_input_inside_working_dir \
  17   abs_input_outside_working_dir
  18
  19 # The compiler is called with an *ABSOLUTE PATH* as input, and that absolute path *is* within
  20 # the working directory of the compiler. We are remapping the path that contains `src`.
  21 abs_input_inside_working_dir:
  22         # We explicitly switch to a directory that *is* a prefix of the directory our
  23         # source code is contained in.
  24         cd $(SRC_DIR) && $(RUSTC) $(SRC_DIR)/src/quux.rs -o "$(TMPDIR)/abs_input_inside_working_dir.rlib" -Cdebuginfo=2 --remap-path-prefix $(SRC_DIR)=REMAPPED
  25         # We expect the path to the main source file to be remapped.
  26         "$(LLVM_BIN_DIR)"/llvm-dwarfdump $(TMPDIR)/abs_input_inside_working_dir.rlib | $(CGREP) "REMAPPED/src/quux.rs"
  27         # No weird duplication of remapped components (see #78479)
  28         "$(LLVM_BIN_DIR)"/llvm-dwarfdump $(TMPDIR)/abs_input_inside_working_dir.rlib | $(CGREP) -v "REMAPPED/REMAPPED"
  29
  30 # The compiler is called with an *ABSOLUTE PATH* as input, and that absolute path is *not* within
  31 # the working directory of the compiler. We are remapping both the path that contains `src` and
  32 # the working directory to the same thing. This setup corresponds to a workaround that is needed
  33 # when trying to remap everything to something that looks like a local path.
  34 # Relative paths are interpreted as relative to the compiler's working directory (e.g. in
  35 # debuginfo). If we also remap the working directory, the compiler strip it from other paths so
  36 # that the final outcome is the desired one again.
  37 abs_input_outside_working_dir:
  38         # We explicitly switch to a directory that is *not* a prefix of the directory our
  39         # source code is contained in.
  40         cd $(TMPDIR) && $(RUSTC) $(SRC_DIR)/src/quux.rs -o "$(TMPDIR)/abs_input_outside_working_dir.rlib" -Cdebuginfo=2 --remap-path-prefix $(SRC_DIR)=REMAPPED --remap-path-prefix $(TMPDIR)=REMAPPED
  41         "$(LLVM_BIN_DIR)"/llvm-dwarfdump $(TMPDIR)/abs_input_outside_working_dir.rlib | $(CGREP) "REMAPPED/src/quux.rs"
  42         # No weird duplication of remapped components (see #78479)
  43         "$(LLVM_BIN_DIR)"/llvm-dwarfdump $(TMPDIR)/abs_input_outside_working_dir.rlib | $(CGREP) -v "REMAPPED/REMAPPED"
  44
  45 # The compiler is called with a *RELATIVE PATH* as input. We are remapping the working directory of
  46 # the compiler, which naturally is an implicit prefix of our relative input path. Debuginfo will
  47 # expand the relative path to an absolute path and we expect the working directory to be remapped
  48 # in that expansion.
  49 rel_input_remap_working_dir:
  50         cd $(SRC_DIR) && $(RUSTC) src/quux.rs -o "$(TMPDIR)/rel_input_remap_working_dir.rlib" -Cdebuginfo=2 --remap-path-prefix "$(SRC_DIR)=REMAPPED"
  51         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir.rlib" | $(CGREP) "REMAPPED/src/quux.rs"
  52         # No weird duplication of remapped components (see #78479)
  53         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir.rlib" | $(CGREP) -v "REMAPPED/REMAPPED"
  54
  55 # The compiler is called with a *RELATIVE PATH* as input. We are remapping a *SUB-DIRECTORY* of the
  56 # compiler's working directory. This test makes sure that that directory is remapped even though it
  57 # won't actually show up in this form in the compiler's SourceMap and instead is only constructed
  58 # on demand during debuginfo generation.
  59 rel_input_remap_working_dir_child:
  60         cd $(SRC_DIR) && $(RUSTC) src/quux.rs -o "$(TMPDIR)/rel_input_remap_working_dir_child.rlib" -Cdebuginfo=2 --remap-path-prefix "$(SRC_DIR)/src=REMAPPED"
  61         # We expect `src/quux.rs` to have been remapped to `REMAPPED/quux.rs`.
  62         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir_child.rlib" | $(CGREP) "REMAPPED/quux.rs"
  63         # We don't want to find the path that we just remapped anywhere in the DWARF
  64         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir_child.rlib" | $(CGREP) -v "$(SRC_DIR)/src"
  65         # No weird duplication of remapped components (see #78479)
  66         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir_child.rlib" | $(CGREP) -v "REMAPPED/REMAPPED"
  67
  68 # The compiler is called with a *RELATIVE PATH* as input. We are remapping a *PARENT DIRECTORY* of
  69 # the compiler's working directory.
  70 rel_input_remap_working_dir_parent:
  71         cd $(SRC_DIR) && $(RUSTC) src/quux.rs -o "$(TMPDIR)/rel_input_remap_working_dir_parent.rlib" -Cdebuginfo=2 --remap-path-prefix "$(SRC_DIR_PARENT)=REMAPPED"
  72         # We expect `src/quux.rs` to have been remapped to `REMAPPED/remap-path-prefix-dwarf/src/quux.rs`.
  73         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir_parent.rlib" | $(CGREP) "REMAPPED/remap-path-prefix-dwarf/src/quux.rs"
  74         # We don't want to find the path that we just remapped anywhere in the DWARF
  75         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir_parent.rlib" | $(CGREP) -v "$(SRC_DIR_PARENT)"
  76         # No weird duplication of remapped components (see #78479)
  77         "$(LLVM_BIN_DIR)"/llvm-dwarfdump "$(TMPDIR)/rel_input_remap_working_dir_parent.rlib" | $(CGREP) -v "REMAPPED/REMAPPED"