On 2/17/19, Peng Yu wrote:
$ flex -o main.l.c main.l
$ clang -I. -DGC_DEBUG -Wall -pedantic -g -c -o main.l.o main.l.c #
rapidstring.h is in .
$ clang main.l.o -lgc -lfl -o main.l.exe
$ dsymutil main.l.exe
What is 'dsymutil', where did you get it, what version?
What is the hardware architecture?
The execution recipe works for me on Fedora 28 using
valgrind-3.14.0-7.fc28.x86_64.
I omitted dsymutil. Why is it essential for you?
$ ldd main.l.exe
linux-vdso.so.1 (0x00007fffa7d9f000)
libgc.so.1 => /lib64/libgc.so.1 (0x00007f255ef81000)
libc.so.6 => /lib64/libc.so.6 (0x00007f255ebc2000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f255e9a3000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f255e79f000)
libatomic_ops.so.1 => /lib64/libatomic_ops.so.1 (0x00007f255e59c000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f255e384000)
/lib64/ld-linux-x86-64.so.2 (0x00007f255f2de000)
$ rpm -qf /lib64/libgc.so.1
gc-7.6.4-3.fc28.x86_64
$ rpm -qf /usr/bin/flex
flex-2.6.1-7.fc28.x86_64
$ rpm -q clang
clang-6.0.1-2.fc28.x86_64
$ valgrind ./main.l.exe <input.txt
==23299== Memcheck, a memory error detector
==23299== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==23299== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==23299== Command: ./main.l.exe
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E4D166: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E4D16B: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E4CF57: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E4CF66: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E4CF9A: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E491AA: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E446F6: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E491B9: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E446F6: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E491E7: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E446F6: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E44733: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E49D21: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4E786: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E4D166: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E4D16B: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E4CF57: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E4CF66: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E4CF9A: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E491AA: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E446F6: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Conditional jump or move depends on uninitialised value(s)
==23299== at 0x4E491B9: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E446F6: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E491E7: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E446F6: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
==23299== Use of uninitialised value of size 8
==23299== at 0x4E44733: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D171: GC_push_all_eager (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E57F2C: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E4D896: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E42C44: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E43348: ??? (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x4E5043B: GC_init (in /usr/lib64/libgc.so.1.3.2)
==23299== by 0x403203: main (main.l:34)
==23299==
tok = 1000, yylval= 1
tok = 1001, yylval= a
tok = 1000, yylval= 23
tok = 1001, yylval= b
tok = 1000, yylval= 456
tok = 1001, yylval= c
==23299==
==23299== HEAP SUMMARY:
==23299== in use at exit: 864 bytes in 3 blocks
==23299== total heap usage: 14 allocs, 11 frees, 24,562 bytes allocated
==23299==
==23299== LEAK SUMMARY:
==23299== definitely lost: 0 bytes in 0 blocks
==23299== indirectly lost: 0 bytes in 0 blocks
==23299== possibly lost: 864 bytes in 3 blocks
==23299== still reachable: 0 bytes in 0 blocks
==23299== suppressed: 0 bytes in 0 blocks
==23299== Rerun with --leak-check=full to see details of leaked memory
==23299==
==23299== For counts of detected and suppressed errors, rerun with: -v
==23299== Use --track-origins=yes to see where uninitialised values come from
==23299== ERROR SUMMARY: 390 errors from 18 contexts (suppressed: 0 from 0)
$
_______________________________________________
Valgrind-users mailing list
Valgrind-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/valgrind-users
