binutils and _start_crt relocations in crt1.o

gistfile1.txt

OI hipster:

jlevon:~ $ gas --version
GNU assembler (GNU Binutils) 2.32

$ gcc -m64 -G -o b.so b.c
$ elfdump -r b.so
...
R_AMD64_JUMP_SLOT                   0x115a0                  0  .rela.plt      _start_crt


SmartOS:

 $ /opt/SmartOS/build-cache/2018Q4/x86_64/7d3d5fd52c4f9652ad8735869512edc363e630ce/usr/gnu/bin/gas --version
GNU assembler (GNU Binutils) 2.25.1
f905ddb5-9113-c52a-d3ce-d0db83321d72:illumos $ /home/gk/src/master/proto.strap/usr/gcc/7/bin/gcc -m64 -G -o b.so b.c
f905ddb5-9113-c52a-d3ce-d0db83321d72:illumos $ elfdump -r b.so

...
Relocation Section:  .SUNW_reloc
    type                               offset             addend  section        symbol
  R_AMD64_PC32                         0x13b4 0xfffffffffffffffc  .SUNW_reloc    _start_crt