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writing a (userland) core dump with incomplete info
Hey folks,
a mabye stupid question: PR 58936 describes a userland process smashing
its memory and triggering a core dump, but due to the memory corruption
we get invalid addresses for the environmen and then fail to find the
proper auxv vector:
proc_getauxv(pid 21737 cmd swipl) -
ps_envstr 0x697220616e737765 nenvstr 1920154122 auxv 0x69722065020d47bd
proc_getauxv() then fails with EFAULT and we fail writing the auxv note
in the core dump, and then stop the whole core writing process early, leaving
the user with a zero sized swipl.core file.
Can we do better? Does it make sense try debugging stuff w/o the auxv vector?
Martin
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