<div dir="auto"><div>It doesn't seem like you don't have the debug symbols in the runtime. Probably you need to install the Debug extension for your runtime. <div class="gmail_quote"><div dir="ltr">On Thu, Dec 20, 2018, 10:01 AM Jiří Janoušek <<a href="mailto:janousek.jiri@gmail.com">janousek.jiri@gmail.com</a> wrote: </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello Flatpak friends, I have this buggy sample C file from The Valgrind Quick Start Guide: ------- leak.c ----- #include <stdlib.h> void f(void) { int* x = malloc(10 * sizeof(int)); x[10] = 0; } int main(void) { f(); return 0; } ------ EOF ------ When I run Valgrind on a host (Fedora 29), I get the expected output: host$ gcc -g -O0 leak.c -o leak host$ valgrind --leak-check=yes ./leak ==10191== Memcheck, a memory error detector ==10191== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==10191== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info ==10191== Command: ./leak ==10191== ==10191== Invalid write of size 4 ==10191== at 0x401144: f (leak.c:4) ==10191== by 0x401155: main (leak.c:7) ==10191== Address 0x4a3b068 is 0 bytes after a block of size 40 alloc'd ==10191== at 0x483880B: malloc (vg_replace_malloc.c:299) ==10191== by 0x401137: f (leak.c:3) ==10191== by 0x401155: main (leak.c:7) ==10191== ==10191== ==10191== HEAP SUMMARY: ==10191== in use at exit: 40 bytes in 1 blocks ==10191== total heap usage: 1 allocs, 0 frees, 40 bytes allocated ==10191== ==10191== 40 bytes in 1 blocks are definitely lost in loss record 1 of 1 ==10191== at 0x483880B: malloc (vg_replace_malloc.c:299) ==10191== by 0x401137: f (leak.c:3) ==10191== by 0x401155: main (leak.c:7) ==10191== ==10191== LEAK SUMMARY: ==10191== definitely lost: 40 bytes in 1 blocks ==10191== indirectly lost: 0 bytes in 0 blocks ==10191== possibly lost: 0 bytes in 0 blocks ==10191== still reachable: 0 bytes in 0 blocks ==10191== suppressed: 0 bytes in 0 blocks ==10191== ==10191== For counts of detected and suppressed errors, rerun with: -v ==10191== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0) However, when I run Valgrind inside a Flatpak sandbox (flatpak 1.0.6-3.fc29), I get only nonsense: host$ flatpak run --devel --filesystem=$PWD org.gnome.Sdk//3.30 sh-4.4$ rm -f leak; gcc -g -O0 leak.c -o leak sh-4.4$ valgrind --leak-check=yes ./leak ==11== Memcheck, a memory error detector ==11== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==11== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info ==11== Command: ./leak ==11== ==11== Conditional jump or move depends on uninitialised value(s) ==11== at 0x401D248: ??? (in /usr/lib/x86_64-linux-gnu/<a href="http://ld-2.27.so" rel="noreferrer noreferrer" target="_blank">ld-2.27.so</a>) ==11== by 0x40081DC: ??? (in /usr/lib/x86_64-linux-gnu/<a href="http://ld-2.27.so" rel="noreferrer noreferrer" target="_blank">ld-2.27.so</a>) ==11== ==11== Conditional jump or move depends on uninitialised value(s) ==11== at 0x401D46E: ??? (in /usr/lib/x86_64-linux-gnu/<a href="http://ld-2.27.so" rel="noreferrer noreferrer" target="_blank">ld-2.27.so</a>) ==11== by 0x2D34365F3638782E: ??? ==11== by 0x6E672D78756E696B: ??? ==11== by 0x6972676C61762F74: ??? ==11== by 0x65727067762F646D: ??? ==11== by 0x726F635F64616F6B: ??? ==11== by 0x2D3436646D612D64: ??? ==11== by 0x6F732E78756E696B: ??? ==11== ==11== Conditional jump or move depends on uninitialised value(s) ==11== at 0x401D46E: ??? (in /usr/lib/x86_64-linux-gnu/<a href="http://ld-2.27.so" rel="noreferrer noreferrer" target="_blank">ld-2.27.so</a>) ==11== by 0x400B580: ??? (in /usr/lib/x86_64-linux-gnu/<a href="http://ld-2.27.so" rel="noreferrer noreferrer" target="_blank">ld-2.27.so</a>) ==11== ==11== ==11== HEAP SUMMARY: ==11== in use at exit: 0 bytes in 0 blocks ==11== total heap usage: 0 allocs, 0 frees, 0 bytes allocated ==11== ==11== All heap blocks were freed -- no leaks are possible ==11== ==11== For counts of detected and suppressed errors, rerun with: -v ==11== Use --track-origins=yes to see where uninitialised values come from ==11== ERROR SUMMARY: 6 errors from 3 contexts (suppressed: 0 from 0) Are there any magic spells to make Valgrind work? Best regards, Jiri Janousek _______________________________________________ Flatpak mailing list <a href="mailto:Flatpak@lists.freedesktop.org" target="_blank" rel="noreferrer">Flatpak@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/flatpak" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/flatpak</a> </blockquote></div></div></div>