featuregood first issuehelp wanted
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Description
It would be nice if the register output of the return address register would display errno definitions (if the value is negative):
current output:
*RAX 0xfffffffffffffff7
RBX 0x7fffffffde88 —▸ 0x7fffffffe1da ◂— '/home/user/Downloads/demo'
*RCX 0x7ffff7fbc017 ◂— 0
RDX 0
RDI 0x7fffffffdc98 ◂— '/bin//sh'
RSI 0
R8 0x7ffff7e03b20 (main_arena+96) —▸ 0x55555555a3b0 ◂— 0
R9 0x410
R10 0x7ffff7c0abe8 ◂— 0x11002200006cb5
*R11 0x346
R12 1
R13 0
R14 0x555555557dc8 (__do_global_dtors_aux_fini_array_entry) —▸ 0x555555555170 (__do_global_dtors_aux) ◂— endbr64
R15 0x7ffff7ffd000 (_rtld_global) —▸ 0x7ffff7ffe2e0 —▸ 0x555555554000 ◂— 0x10102464c457f
RBP 0x7fffffffdd60 —▸ 0x7fffffffde00 —▸ 0x7fffffffde60 ◂— 0
RSP 0x7fffffffdc98 ◂— '/bin//sh'
*RIP 0x7ffff7fbc017 ◂— 0
what i expect:
*RAX 0xfffffffffffffff7 <EBADF: fd is not a valid file descriptor>
RBX 0x7fffffffde88 —▸ 0x7fffffffe1da ◂— '/home/user/Downloads/demo'
*RCX 0x7ffff7fbc017 ◂— 0
RDX 0
RDI 0x7fffffffdc98 ◂— '/bin//sh'
RSI 0
R8 0x7ffff7e03b20 (main_arena+96) —▸ 0x55555555a3b0 ◂— 0
R9 0x410
R10 0x7ffff7c0abe8 ◂— 0x11002200006cb5
*R11 0x346
R12 1
R13 0
R14 0x555555557dc8 (__do_global_dtors_aux_fini_array_entry) —▸ 0x555555555170 (__do_global_dtors_aux) ◂— endbr64
R15 0x7ffff7ffd000 (_rtld_global) —▸ 0x7ffff7ffe2e0 —▸ 0x555555554000 ◂— 0x10102464c457f
RBP 0x7fffffffdd60 —▸ 0x7fffffffde00 —▸ 0x7fffffffde60 ◂— 0
RSP 0x7fffffffdc98 ◂— '/bin//sh'
*RIP 0x7ffff7fbc017 ◂— 0
I think <EBADF> should be enough, but having an additional short description would be nice.