Can't link c++ function in assembly

Sorry if there are other questions like this one, but I tried almost everything with no results.

I have an assembly file calling the main function of a cpp file(I'm making a kernel entry)

kerne.asm

[bits 32][extern _main]jmp _mainclihlt

main.cpp

void a(){    //a}void bc(){    //bc}extern "C" int main(){    return 0;}

makefile

all: kes.o ke.o ke1.tmp otp.txtkes.o : kerne.asm    nasm -f win32 -o H:\x86f\lkt\kes.o H:\x86f\lkt\kerne.asm   ke.o : main.cpp    g++ -Wall -m32 -g -std=c++14 -std=c++1y  -ffreestanding -nostartfiles -c main.cpp -o ke.o ke1.tmp : kes.o ke.o    ld -m i386pe -r -o ke1.tmp -Ttext 0x1000 kes.o ke.ootp.txt : ke1.tmp    objdump -d ke1.tmp > otp.txt

otp.txt output

ke1.tmp:     file format pe-i386Disassembly of section .text:00001000 <.text>:    1000:   e9 00 00 00 00          jmp    1005 <.text+0x5>    1005:   ee                      out    %al,(%dx)    1006:   77 90                   ja     f98 <@feat.00+0xf97>00001008 <__Z1av>:    1008:   55                      push   %ebp    1009:   89 e5                   mov    %esp,%ebp    100b:   90                      nop    100c:   5d                      pop    %ebp    100d:   c3                      ret    0000100e <__Z2bcv>:    100e:   55                      push   %ebp    100f:   89 e5                   mov    %esp,%ebp    1011:   90                      nop    1012:   5d                      pop    %ebp    1013:   c3                      ret    00001014 <_main>:    1014:   55                      push   %ebp    1015:   89 e5                   mov    %esp,%ebp    1017:   83 e4 f0                and    $0xfffffff0,%esp    101a:   e8 00 00 00 00          call   101f <_main+0xb>    101f:   b8 00 00 00 00          mov    $0x0,%eax    1024:   c9                      leave      1025:   c3                      ret        1026:   90                      nop    1027:   90                      nop    ...

In the otp output the instruction at 1000 is the jmp _main istrunction. How you can see the address is not resolved correctly, making it point to the next instruction(1005). Where am I doing wrong?

edit:

nm kes.o

00000000 a .absolut00000000 t .text00000001 a @feat.00         U _main

nm ke.o

00000000 b .bss00000000 d .data00000000 N .debug_abbrev00000000 N .debug_aranges00000000 N .debug_frame00000000 N .debug_info00000000 N .debug_line00000000 r .rdata$zzz00000000 t .text         U ___main00000000 T __Z1av00000006 T __Z2bcv0000000c T _main

objdump -r ke1.tmp

ke1.tmp:     file format pe-i386RELOCATION RECORDS FOR [.text]:OFFSET   TYPE              VALUE 00000001 DISP32            _main-0x000000140000001b DISP32            ___main+0x00001000RELOCATION RECORDS FOR [.debug_aranges]:OFFSET   TYPE              VALUE 00000006 secrel32          .debug_info00000010 dir32             .text-0x00001008RELOCATION RECORDS FOR [.debug_info]:OFFSET   TYPE              VALUE 00000006 secrel32          .debug_abbrev00000088 dir32             .text-0x0000100800000090 secrel32          .debug_line000000a1 dir32             .text-0x00001008000000c0 dir32             .text-0x00001008000000d6 dir32             .text-0x00001008RELOCATION RECORDS FOR [.debug_line]:OFFSET   TYPE              VALUE 0000003a dir32             .text-0x00001008RELOCATION RECORDS FOR [.debug_frame]:OFFSET   TYPE              VALUE 00000018 secrel32          .debug_frame0000001c dir32             .text-0x0000100800000038 secrel32          .debug_frame0000003c dir32             .text-0x0000100800000058 secrel32          .debug_frame0000005c dir32             .text-0x00001008