Incorrect address when the padding due to dot assignment is greater than UINT_MAX

[parth-07]

The linker assign incorrect addresses if the padding due to dot assignment is greater than UINT_MAX.

Reproducer:

#!/usr/bin/env bash

cat >1.c <<\EOF
int u = 1;
int v = 2;

int foo() { return 1; }
EOF

cat >script.t <<\EOF
SECTIONS {
  .data 0x1000 : {
    . = . + 0x400000000;
    *(.data*)
  }
}
EOF

LDs=(ld.eld)
SFs=(eld)

clang -o 1.o -target riscv64 1.c -c -fdata-sections -ffunction-sections
for i in "${!SFs[@]}"; do
  ${LDs[$i]} -o 1.${SFs[$i]}.out 1.o -T script.t -Map 1.${SFs[$i]}.map.txt
done
llvm-readelf -s 1.eld.out | grep 'OBJECT.*u'

Output
12: 0000000000001000 4 OBJECT GLOBAL DEFAULT 2 u

Expected output
12: 0000000400001000 4 OBJECT GLOBAL DEFAULT 2 u