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test: verify current remap rules on darwin
When `--remap-path-scope=object` is specified, user expect that there is no local path embedded in final executables. Under `object` scope, the current implementation only remap debug symbols if debug info is splitted into its own file. In other words, when `split-debuginfo=packed|unpacked` is set, rustc assumes there is no embedded path in the final executable needing to be remapped. However, this doesn't work on macOS. On macOS, `SO` symbols are embedded in binary executables and libraries regardless a split-debuginfo file is built. Each `SO` symbol contains a path to the root source file of a debug info compile unit. This commit demonstrates the case, and hope there is a fix soon.
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‎tests/run-make/split-debuginfo/Makefile‎

Lines changed: 192 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,10 @@
11
# ignore-cross-compile
22
include ../tools.mk
33

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export HERE := $(shell pwd)
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export REMAPPED_OUT := /my-remapped-out
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export REMAPPED_CWD := /my-remapped-cwd
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all: off packed unpacked
59

610
ifeq ($(UNAME),Darwin)
@@ -11,23 +15,200 @@ off:
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[ ! -d $(TMPDIR)/foo.dSYM ]
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# Packed by default, but only if debuginfo is requested
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packed:
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rm -rf $(TMPDIR)/*.dSYM
16-
$(RUSTC) foo.rs
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[ ! -d $(TMPDIR)/foo.dSYM ]
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rm -rf $(TMPDIR)/*.dSYM
19-
$(RUSTC) foo.rs -g
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packed: packed-remapped-object-scope packed-remapped-macro-scope packed-remapped-split-debuginfo-scope
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# - Debuginfo in binary file
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# - `.o` deleted
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# - `.dSYM` present
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packed-remapped-object-scope:
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$(RUSTC) $(UNSTABLEOPTS) -C split-debuginfo=packed -C debuginfo=2 \
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--remap-path-prefix $(TMPDIR)=$(REMAPPED_OUT) \
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--remap-path-prefix $(HERE)=$(REMAPPED_CWD) \
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-Z remap-path-scope=object foo.rs -g
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ls $(TMPDIR)/*.o && exit 1 || exit 0
2029
[ -d $(TMPDIR)/foo.dSYM ]
21-
rm -rf $(TMPDIR)/*.dSYM
22-
$(RUSTC) foo.rs -g -C split-debuginfo=packed
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# binary contains remapped paths
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# FIXME: As of 2023-12, `OSO` cannot be trimmed. See rust-lang/rust#116948
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(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo) || exit 1
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# FIXME: `SO` in the root debuginfo compile unit didn't get trimed. See rust-lang/rust#116948
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(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo) || exit 1
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# binary contains no original paths
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# FIXME: As of 2023-12, `OSO` cannot be trimmed. See rust-lang/rust#116948
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grep --text $(TMPDIR) $(TMPDIR)/foo || exit 1
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# FIXME: `SO` in the root debuginfo compile unit didn't get trimed. See rust-lang/rust#116948
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grep --text $(HERE) $(TMPDIR)/foo || exit 1
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# dSYM bundle contains no remapped paths
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(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo) || exit 1
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(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo) || exit 1
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# dSYM bundle contains original paths
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grep --text $(HERE) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo || exit 1
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rm -rf $(TMPDIR)/foo.dSYM
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rm $(TMPDIR)/$(call BIN,foo)
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# - Debuginfo in binary file
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# - `.o` deleted
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# - `.dSYM` present
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packed-remapped-macro-scope:
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$(RUSTC) $(UNSTABLEOPTS) -C split-debuginfo=packed -C debuginfo=2 \
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--remap-path-prefix $(TMPDIR)=$(REMAPPED_OUT) \
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--remap-path-prefix $(HERE)=$(REMAPPED_CWD) \
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-Z remap-path-scope=macro foo.rs -g
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ls $(TMPDIR)/*.o && exit 1 || exit 0
2362
[ -d $(TMPDIR)/foo.dSYM ]
24-
rm -rf $(TMPDIR)/*.dSYM
63+
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# binary contains no remapped paths
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(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo) || exit 1
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(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo) || exit 1
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# binary contains original paths
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grep --text $(TMPDIR) $(TMPDIR)/foo || exit 1
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grep --text $(HERE) $(TMPDIR)/foo || exit 1
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# dSYM bundle contains no remapped paths
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(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo) || exit 1
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(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo) || exit 1
75+
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# dSYM bundle contains original paths
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grep --text $(HERE) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo || exit 1
78+
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rm -rf $(TMPDIR)/foo.dSYM
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rm $(TMPDIR)/$(call BIN,foo)
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# - Debuginfo in binary file
83+
# - `.o` deleted
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# - `.dSYM` present
85+
packed-remapped-split-debuginfo-scope:
86+
$(RUSTC) $(UNSTABLEOPTS) -C split-debuginfo=packed -C debuginfo=2 \
87+
--remap-path-prefix $(TMPDIR)=$(REMAPPED_OUT) \
88+
--remap-path-prefix $(HERE)=$(REMAPPED_CWD) \
89+
-Z remap-path-scope=split-debuginfo,split-debuginfo-path foo.rs -g
90+
ls $(TMPDIR)/*.o && exit 1 || exit 0
91+
[ -d $(TMPDIR)/foo.dSYM ]
92+
93+
# binary contains no remapped paths
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(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo) || exit 1
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# FIXME: binary contains `N_SO` (SO) in debug symbol, which got remapped.
96+
nm -pa $(TMPDIR)/foo | grep " SO " | grep $(REMAPPED_CWD) || exit 1
97+
nm -pa $(TMPDIR)/foo | grep --invert-match " SO " | (! grep $(REMAPPED_CWD)) || exit 1
98+
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# binary contains original paths
100+
# FIXME: As of 2023-12, `OSO` cannot be trimmed. See rust-lang/rust#116948
101+
grep --text $(TMPDIR) $(TMPDIR)/foo || exit 1
102+
# FIXME: binary contains `N_SO` (SO) in debug symbol, which got remapped.
103+
(! grep --text $(HERE) $(TMPDIR)/foo) || exit 1
104+
105+
## dSYM bundle contains remapped paths
106+
grep --text $(REMAPPED_CWD) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo || exit 1
107+
108+
## dSYM bundle contains no original paths
109+
(! grep --text $(TMPDIR) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo) || exit 1
110+
(! grep --text $(HERE) $(TMPDIR)/foo.dSYM/Contents/Resources/DWARF/foo) || exit 1
111+
112+
rm -rf $(TMPDIR)/foo.dSYM
113+
rm $(TMPDIR)/$(call BIN,foo)
25114

26115
# Object files are preserved with unpacked and `dsymutil` isn't run
27-
unpacked:
28-
$(RUSTC) foo.rs -g -C split-debuginfo=unpacked
116+
unpacked: unpacked-remapped-object-scope unpacked-remapped-macro-scope unpacked-remapped-split-debuginfo-scope
117+
118+
# - Debuginfo in object files
119+
# - `.o` present
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# - `.dSYM` never created
121+
unpacked-remapped-object-scope:
122+
$(RUSTC) $(UNSTABLEOPTS) -C split-debuginfo=unpacked -C debuginfo=2 \
123+
--remap-path-prefix $(TMPDIR)=$(REMAPPED_OUT) \
124+
--remap-path-prefix $(HERE)=$(REMAPPED_CWD) \
125+
-Z remap-path-scope=object foo.rs -g
126+
ls $(TMPDIR)/*.o
127+
[ ! -d $(TMPDIR)/foo.dSYM ]
128+
129+
# binary contains remapped paths
130+
# FIXME: As of 2023-12, `OSO` cannot be trimmed. See rust-lang/rust#116948
131+
(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo) || exit 1
132+
# FIXME: `SO` in the root debuginfo compile unit didn't get trimed. See rust-lang/rust#116948
133+
(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo) || exit 1
134+
135+
# binary contains no original paths
136+
# FIXME: As of 2023-12, `OSO` cannot be trimmed. See rust-lang/rust#116948
137+
grep --text $(TMPDIR) $(TMPDIR)/foo || exit 1
138+
# FIXME: `SO` in the root debuginfo compile unit didn't get trimed. See rust-lang/rust#116948
139+
grep --text $(HERE) $(TMPDIR)/foo || exit 1
140+
141+
# object file contains no remapped paths
142+
(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo.*.o) || exit 1
143+
(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo.*.o) || exit 1
144+
145+
# object file contains original paths
146+
grep --text $(HERE) $(TMPDIR)/foo.*.o || exit 1
147+
148+
rm $(TMPDIR)/*.o
149+
rm $(TMPDIR)/$(call BIN,foo)
150+
151+
# - Debuginfo in object files
152+
# - `.o` present,
153+
# - `.dSYM` never created
154+
unpacked-remapped-macro-scope:
155+
$(RUSTC) $(UNSTABLEOPTS) -C split-debuginfo=unpacked -C debuginfo=2 \
156+
--remap-path-prefix $(TMPDIR)=$(REMAPPED_OUT) \
157+
--remap-path-prefix $(HERE)=$(REMAPPED_CWD) \
158+
-Z remap-path-scope=macro foo.rs -g
159+
ls $(TMPDIR)/*.o
160+
[ ! -d $(TMPDIR)/foo.dSYM ]
161+
162+
# binary contains no remapped paths
163+
(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo) || exit 1
164+
(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo) || exit 1
165+
166+
# binary contains original paths
167+
grep --text $(TMPDIR) $(TMPDIR)/foo || exit 1
168+
grep --text $(HERE) $(TMPDIR)/foo || exit 1
169+
170+
# object file contains no remapped paths
171+
(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo.*.o) || exit 1
172+
(! grep --text $(REMAPPED_CWD) $(TMPDIR)/foo.*.o) || exit 1
173+
174+
# object file contains original paths
175+
grep --text $(HERE) $(TMPDIR)/foo.*.o || exit 1
176+
177+
rm $(TMPDIR)/*.o
178+
rm $(TMPDIR)/$(call BIN,foo)
179+
180+
# - Debuginfo in object files
181+
# - `.o` present
182+
# - `.dSYM` never created
183+
unpacked-remapped-split-debuginfo-scope:
184+
$(RUSTC) $(UNSTABLEOPTS) -C split-debuginfo=unpacked -C debuginfo=2 \
185+
--remap-path-prefix $(TMPDIR)=$(REMAPPED_OUT) \
186+
--remap-path-prefix $(HERE)=$(REMAPPED_CWD) \
187+
-Z remap-path-scope=split-debuginfo,split-debuginfo-path foo.rs -g
29188
ls $(TMPDIR)/*.o
30189
[ ! -d $(TMPDIR)/foo.dSYM ]
190+
191+
# binary contains no remapped paths
192+
(! grep --text $(REMAPPED_OUT) $(TMPDIR)/foo) || exit 1
193+
# FIXME: binary contains `N_SO` (SO) in debug symbol, which got remapped.
194+
nm -pa $(TMPDIR)/foo | grep " SO " | grep $(REMAPPED_CWD) || exit 1
195+
nm -pa $(TMPDIR)/foo | grep --invert-match " SO " | (! grep $(REMAPPED_CWD)) || exit 1
196+
197+
# binary contains original paths
198+
grep --text $(TMPDIR) $(TMPDIR)/foo || exit 1
199+
# FIXME: binary contains `N_SO` (SO) in debug symbol, which got remapped.
200+
(! grep --text $(HERE) $(TMPDIR)/foo) || exit 1
201+
202+
# object file contains remapped paths
203+
grep --text $(REMAPPED_CWD) $(TMPDIR)/foo.*.o || exit 1
204+
205+
# object file contains no original paths
206+
(! grep --text $(TMPDIR) $(TMPDIR)/foo.*.o) || exit 1
207+
(! grep --text $(HERE) $(TMPDIR)/foo.*.o) || exit 1
208+
209+
rm $(TMPDIR)/*.o
210+
rm $(TMPDIR)/$(call BIN,foo)
211+
31212
else
32213
ifdef IS_WINDOWS
33214
# Windows only supports packed debuginfo - nothing to test.

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