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Thanks! I put those in. However, my PLT count does not match yours. I get 169 in a build with TLS support, and I think that is only one more than without TLS. I have been counting using this script (it gives a list of symbols; pipe it to wc -l), which counts only PLT slots for symbols defined in libc itself, and omits the malloc functions that are explicit exceptions. That count is now 121. #!/bin/sh goodones='__libc_free __libc_malloc __libc_memalign __libc_realloc free calloc malloc realloc' readelf -rW libc.so | awk '/JUMP_SLOT/ && $4 != "00000000" { print $5 }' | fgrep -vx "$goodones" | sort
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