Основы программирования в Linux

Мэтью Нейл

– -4780-- object doesn't have a symbol table

– -4780-- Reading syms from /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so (0x4021000)

– -4780-- object doesn't have a symbol table

==4780= WARNING: new redirection conflicts with existing -- ignoring it

– -4780-- new: 0x040158B0 (index ) R-> 0x04024490 index

– -4780-- REDIR: 0x4015A50 (strlen) redirected to 0x4024540 (strlen)

– -4780-- Reading syms from /lib/libc-2.5.so (0x4043000)

– -4780-- REDIR: 0x40ADFF0 (rindex) redirected to 0x4024370 (rindex)

– -4780-- REDIR: 0x40AAF00 (malloc) redirected to 0x4023700 (malloc)

==4780== Invalid read of size 1

==4780== at 0x804842C: main (checker.с: 10)

==4780== Address 0x4170428 is 0 bytes after a block of size 1,024 alloc'd

==4780== at 0x4023785: malloc (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)

==4780== by 0x8048420: main (checker.c: 6)

=4780=

==4780== Invalid write of size 1

==4780== at 0x804843A: main (checker.с: 13)

==4780== Address 0x4170428 is 0 bytes after a block of size 1,024 alloc'd

==4780== at 0x4 023785: malloc (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)

==4780== by 0x8048420: main (checker.c: 6)

– -4780-- REDIR: 0x40A8BB0 (free) redirected to 0x402331A (free)

– -4780-- REDIR: 0x40AEE70 (memset) redirected to 0x40248A0 (memset)

==4780==

==4780== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 3 from 1)

==4780==

==4780== 1 errors in context 1 of 2:

==4780== Invalid write of size 1

==4780== at 0x804843A: main (checker.с: 13)

==4780== Address 0x4170428 is 0 bytes after a block of size 1,024 alloc'd

==4780== at 0x4023785: malloc (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)

==4780== by 0x80484 20: main (checker.c: 6)

==4780==

==4780== 1 errors in context 2 of 2:

==4780== Invalid read of size 1

==4780== at 0x804842C: main (checker.c:10)

==4780== Address 0x4170428 is 0-bytes after a block of size 1,024 alloc'd

==4780== at 0x4023785: malloc (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)

==4780== by 0x8048420: main (checker.с: 6)

– -4780--

– -4780-- supp: 3 dl-hack3

==4780==

==4780== IN SUMMARY: 2 errors from 2 contexts (suppressed: 3 from 1)

==4780==

==4780== malloc/free: in use at exit: 1,024 bytes in 1 blocks.

==4780== malloc/free: 1 allocs, 0 frees, 1,024 bytes allocated.

==4780==

==4780== searching for pointers to 1 not-freed blocks.

==4780== checked 65,444 bytes.

==4780==

==4780==

==4780== 1,024 bytes in 1 blocks are definitely lost in loss record 1 of 1

==4780== at 0x4023785: malloc (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)

==4780== by 0x8048420: main (checker.c: 6)

==4780==

==4780== LEAK SUMMARY:

==4780== definitely lost: 1,024 bytes in 1 blocks.

==4780== possibly lost: 0 bytes in 0 blocks.

==4780== still reachable: 0 bytes in 0 blocks.

==4780== suppressed: 0 bytes in 0 blocks.

– -4780-- memcheck: sanity checks: 0 cheap, 1 expensive

– -4780-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use

– -4780-- memcheck: auxmaps: 0 searches, 0 comparisons

– -4780-- memcheck: SMs: n_issued = 9 (144k, 0M)

– -4780-- memcheck: SMs: n_deissued = 0 (0k, 0M)

– -4780-- memcheck: SMs: max_noaccess = 65535 (1048560k, 1023M)

– -4780-- memcheck: SMs: max_undefined = 0 (0k, 0M)

– -4780-- memcheck: SMs: max_defined = 19 (304k, 0M)

– -4780-- memcheck: SMs: max_non_DSМ = 9 (144k, 0M)

– -4780-- memcheck: max sec V bit nodes: 0 (0k, 0M)

– -4780-- memcheck: set_sec_vbits8 calls: 0 (new: 0, updates: 0)

– -4780-- memcheck: max shadow mem size: 448k, 0M

– -4780-- translate: fast SP updates identified: 1,456 ( 90.3%)

– -4780-- translate: generic_known SP updates identified: 79 ( 4.9%)

– -4780-- translate: generic_unknown SP updates identified: 76 ( 4.7%)

– -4780-- tt/tc: 3,341 tt lookups requiring 3,360 probes