Control: tag -1 moreinfo On Wed, 2016-01-27 at 23:54 +0100, Marco d'Itri wrote: > Control: reassign -1 src:linux > Control: found -1 4.3.0-1 > Control: retitle -1 getauxval(AT_RANDOM) broken on sparc64 > > On Jan 27, Anatoly Pugachev <matorola@gmail.com> wrote: > > > Program terminated with signal SIGUSR1, User defined signal 1. > > #0 0x000001000001b9b8 in initialize_srand () at src/basic/random- > > util.c:107 > > 107 x ^= *(unsigned*) auxv; > > (gdb) bt > Looks like getauxval(AT_RANDOM) returns garbage on sparc64: > > x = 0; > auxv = (void*) getauxval(AT_RANDOM); > if (auxv) > x ^= *(unsigned*) auxv; There is no documented alignment guarantee for the AT_RANDOM bytes so I think this caller is wrong to treat it as an array of unsigned int. What happens if you change it to: if (auxv) memcpy(&x, auxv, sizeof(x)); ? Ben. -- Ben Hutchings 73.46% of all statistics are made up.
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