On Fri, May 24, 2019 at 11:00:57AM +0800, Yu, Mingli wrote: > On 2019年05月23日 19:50, Mark Wielaard wrote: > > > # ./tests/test-nlist > > > nlist failed > > > > You are supposed to run it with make check. > > make check TESTS=test-nlist > > > > test-nlist tries to run nlist on itself. > > So it has to be in the current working directory. > > Thanks Mark for your respond! > As you said "So it has to be in the current working directory.", what do you > mean? test-nlist needs to locate in the current working directory?
Yes. See the source code. The test tries to run nlist on "./test-nlist". > > Basically nlist fills in the n_value and n_scnum with the st_value and > > st_shndx of the symbol named if found. > > > > As you can see for me it corresponds to the values found by: > > > > $ eu-readelf -s ./test-nlist | egrep ' (var|bss|main|foo)' > > 58: 0000000000004048 4 OBJECT GLOBAL DEFAULT 24 var > > 61: 0000000000004050 4 OBJECT GLOBAL DEFAULT 25 bss > > 66: 0000000000001310 3 FUNC GLOBAL DEFAULT 14 foo > > 71: 0000000000001080 408 FUNC GLOBAL DEFAULT 14 main > > # which eu-readelf > /usr/bin/eu-readelf > > # /usr/bin/eu-readelf -s tests/test-nlist > Symbol table [ 5] '.dynsym' contains 11 entries: > 1 local symbol String table: [ 6] '.dynstr' > Num: Value Size Type Bind Vis Ndx Name > 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UNDEF > 1: 0000000000000000 0 NOTYPE WEAK DEFAULT UNDEF > _ITM_deregisterTMCloneTable > 2: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF > puts@GLIBC_2.2.5 (2) > 3: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF > __stack_chk_fail@GLIBC_2.4 (3) > 4: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF > __libc_start_main@GLIBC_2.2.5 (2) > 5: 0000000000000000 0 NOTYPE WEAK DEFAULT UNDEF > __gmon_start__ > 6: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF > nlist@ELFUTILS_1.0 (4) > 7: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF > __printf_chk@GLIBC_2.3.4 (5) > 8: 0000000000000000 0 FUNC GLOBAL DEFAULT UNDEF > exit@GLIBC_2.2.5 (2) > 9: 0000000000000000 0 NOTYPE WEAK DEFAULT UNDEF > _ITM_registerTMCloneTable > 10: 0000000000000000 0 FUNC WEAK DEFAULT UNDEF > __cxa_finalize@GLIBC_2.2.5 (2) For some reason your test-nlist doesn't have an .symtab. Make sure that when you build the tests CLFAGS contains -g. And the that test binary isn't accidentially stripped afterwards. Cheers, Mark
