[Bug 259294] [libc] add a freeres function
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Date: Fri, 22 Oct 2021 06:07:23 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259294 --- Comment #1 from Paul Floyd <pjfloyd@wanadoo.fr> --- I'll see if I can work out a patch. In the meantime, here is the canonical C example #include <stdio.h> int main(void) { printf("Hellw, World!\n"); } If I run valgrind --default-suppressions=no --leak-check=full --show-reachable=yes ./hello_world then I get ==1497== 4,096 bytes in 1 blocks are still reachable in loss record 1 of 1 ==1497== at 0x484C8A4: malloc (in /usr/local/libexec/valgrind/vgpreload_memcheck-amd64-freebsd.so) ==1497== by 0x4974AA3: ??? (in /lib/libc.so.7) ==1497== by 0x4987278: ??? (in /lib/libc.so.7) ==1497== by 0x497B012: ??? (in /lib/libc.so.7) ==1497== by 0x497AD89: vfprintf_l (in /lib/libc.so.7) ==1497== by 0x4975AF3: printf (in /lib/libc.so.7) ==1497== by 0x2018A8: main (hello_world.c:5) And for C++ the canonical hello world #include <iostream> int main() { std::cout << "Hello, World!\n"; } valgrind --default-suppressions=no --leak-check=full --show-reachable=yes ./hello_world2 ==1507== 4,096 bytes in 1 blocks are still reachable in loss record 1 of 1 ==1507== at 0x484C8A4: malloc (in /usr/local/libexec/valgrind/vgpreload_memcheck-amd64-freebsd.so) ==1507== by 0x4AB5AA3: ??? (in /lib/libc.so.7) ==1507== by 0x4AC8278: ??? (in /lib/libc.so.7) ==1507== by 0x4AB47D2: ??? (in /lib/libc.so.7) ==1507== by 0x4AB50A3: fwrite (in /lib/libc.so.7) ==1507== by 0x202C08: std::__1::basic_streambuf<char, std::__1::char_traits<char> >::sputn(char const*, long) (include/c++/v1/streambuf:229) ==1507== by 0x202A1F: std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > std::__1::__pad_and_output<char, std::__1::char_traits<char> >(std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> >, char const*, char const*, char const*, std::__1::ios_base&, char) (include/c++/v1/locale:1411) ==1507== by 0x202725: std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::__put_character_sequence<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*, unsigned long) (include/c++/v1/ostream:730) ==1507== by 0x20260B: std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<< <std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) (include/c++/v1/ostream:869) While looking at this, it strikes me that I'm not reading the libc debuginfo. I need to investigate that. -- You are receiving this mail because: You are the assignee for the bug.