[Bug gold/19567] Symbol_value::value doesn't support x32 overflow check

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19567

--- Comment #14 from H.J. Lu <hjl.tools at gmail dot com> ---
Another R_X86_64_32S overflow check testcase:

address@hidden pr19567]$ cat x.S
#ifndef SPACE
#define SPACE 0x80000000
#endif
        .data
        .space SPACE
        .comm foo,4
        .text
        .globl _start
_start:
        mov $foo,%rax
        movl $1, (%rax)
        movl $93, %eax          /* Syscall number -> rax.  */
        syscall                 /* Do the system call.  */
address@hidden pr19567]$ make LD=ld
gcc -mx32   -c -o x.o x.S
ld -m elf32_x86_64 -o x x.o
x.o: In function `_start':
(.text+0x3): relocation truncated to fit: R_X86_64_32S against symbol `foo'
defined in COMMON section in x.o
Makefile:15: recipe for target 'x' failed
make: *** [x] Error 1
address@hidden pr19567]$ make
./ld.gold -m elf32_x86_64 -o x x.o
address@hidden pr19567]$ gdb x
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Reading symbols from x...(no debugging symbols found)...done.
(gdb) r
Starting program: /export/home/hjl/bugs/binutils/pr19567/x 

Program received signal SIGSEGV, Segmentation fault.
0x0040007b in _start ()
(gdb) disass
Dump of assembler code for function _start:
   0x00400074 <+0>:     mov    $0xffffffff80401088,%rax
=> 0x0040007b <+7>:     movl   $0x1,(%rax)
   0x00400081 <+13>:    mov    $0x5d,%eax
   0x00400086 <+18>:    syscall 
End of assembler dump.
(gdb) p/x $rax
$1 = 0xffffffff80401088
(gdb)

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