https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114034
Bug ID: 114034
Summary: Failure of tests gcov-dump-{1,2}.C
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: fxcoudert at gcc dot gnu.org
Target Milestone: ---
We have the following failures on x86_64-apple-darwin23:
FAIL: g++.dg/gcov/gcov-dump-1.C -std=gnu++98 (test for excess errors)
FAIL: g++.dg/gcov/gcov-dump-1.C -std=gnu++14 (test for excess errors)
FAIL: g++.dg/gcov/gcov-dump-1.C -std=gnu++17 (test for excess errors)
FAIL: g++.dg/gcov/gcov-dump-1.C -std=gnu++20 (test for excess errors)
FAIL: g++.dg/gcov/gcov-dump-2.C -std=gnu++98 (test for excess errors)
FAIL: g++.dg/gcov/gcov-dump-2.C -std=gnu++14 (test for excess errors)
FAIL: g++.dg/gcov/gcov-dump-2.C -std=gnu++17 (test for excess errors)
FAIL: g++.dg/gcov/gcov-dump-2.C -std=gnu++20 (test for excess errors)
Excess errors:
ld: warning: ignoring duplicate libraries: '-lgcov'
The compilation line only includes one -lgcov:
/Users/fx/ibin-20240219/gcc/testsuite/g++1/../../xg++
-B/Users/fx/ibin-20240219/gcc/testsuite/g++1/../../
/Users/fx/gcc-upstream/gcc/testsuite/g++.dg/gcov/gcov-dump-1.C
-fdiagnostics-plain-output -nostdinc++
-I/Users/fx/ibin-20240219/x86_64-apple-darwin23/libstdc++-v3/include/x86_64-apple-darwin23
-I/Users/fx/ibin-20240219/x86_64-apple-darwin23/libstdc++-v3/include
-I/Users/fx/gcc-upstream/libstdc++-v3/libsupc++
-I/Users/fx/gcc-upstream/libstdc++-v3/include/backward
-I/Users/fx/gcc-upstream/libstdc++-v3/testsuite/util -fmessage-length=0
-std=gnu++98 -fprofile-generate -ftest-coverage -lgcov
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/.libs
-B/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/.libs
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/.libs
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/experimental/.libs
-B/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libitm/
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libitm/.libs -lm -o
./gcov-dump-1.exe
but the driver somehow includes another one when calling collect2:
/Users/fx/ibin-20240219/gcc/testsuite/g++1/../../collect2 -demangle -syslibroot
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/ -dynamic -arch x86_64
-platform_version macos 14.0.0 0.0 -o ./gcov-dump-1.exe
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/.libs
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/.libs
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/experimental/.libs
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libitm/.libs
-L/Users/fx/ibin-20240219/gcc/testsuite/g++1/../..
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libstdc++-v3/src/.libs
-L/Users/fx/ibin-20240219/x86_64-apple-darwin23/./libitm -lemutls_w -lheapt_w
/var/folders/_8/7ft0tbns6_l87s21n4s_1sc80000gn/T//ccyOpfRM.o -lgcov -lstdc++
-lgcov -lgcc_s.1.1 -lgcc -lSystem -no_compact_unwind -rpath @loader_path -rpath
/Users/fx/ibin-20240219/gcc -rpath
/Users/fx/ibin-20240219/x86_64-apple-darwin23/libstdc++-v3/src/.libs -rpath
/Users/fx/ibin-20240219/x86_64-apple-darwin23/libitm
I'm wondering if it's a good idea to simply ignore the warning in the two test
cases. It's not such a frequent use case, and darwin linker to being a pain
here.
