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I am wondering what the crypto, linenum, pcalign, relocs and va values mean in the output of rabin2.

I took a look in the source code of radare2 and it seems for ELF va is always true, I assume it means virtual addressing?

https://github.com/radareorg/radare2/blob/1d3698bc96a09e45c4fff4c090278623f146929c/libr/bin/format/elf/elf.c#L2132-L2134

int Elf_(r_bin_elf_has_va)(ELFOBJ *bin) {
    return true;
}

I would assume relocs refer to the presence of the relocation table however from my testing that does not seem to be the case.

For linenum I think it refers information relating to the line numbers in the source code? But this still seem to appear true when there is no DWARF information on the ELF binary.

As for the other 2 I have no idea what they are referring to.

arch     x86
baddr    0x0
binsz    6618
bintype  elf
bits     64
canary   true
sanitiz  false
class    ELF64
crypto   false
endian   little
havecode true
intrp    /lib64/ld-linux-x86-64.so.2
laddr    0x0
lang     c
linenum  true
lsyms    true
machine  AMD x86-64 architecture
maxopsz  16
minopsz  1
nx       true
os       linux
pcalign  0
pic      true
relocs   true
relro    full
rpath    NONE
static   false
stripped false
subsys   linux
va       true
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