[Bug gold/17735] New: gold doesn't set ELFOSABI_GNU for IFUNC

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17735

            Bug ID: 17735
           Summary: gold doesn't set ELFOSABI_GNU for IFUNC
           Product: binutils
           Version: 2.26 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
          Assignee: ccoutant at google dot com
          Reporter: hjl.tools at gmail dot com
                CC: ian at airs dot com

gold doesn't set ELFOSABI_GNU for IFUNC:

address@hidden tmp]$ cat libb.c
void new_sd_get_seats(void);
static void (*resolve_sd_get_seats(void)) (void) {
        return new_sd_get_seats;
}
void sd_get_seats(void) __attribute__((ifunc("resolve_sd_get_seats")));
address@hidden tmp]$ gcc -fpic -c libb.c
address@hidden tmp]$ ld -shared libb.o
address@hidden tmp]$ readelf -h a.out | grep OS/ABI 
  OS/ABI:                            UNIX - GNU
address@hidden tmp]$ ld.gold -shared libb.o
address@hidden tmp]$ readelf -h a.out | grep OS/ABI 
  OS/ABI:                            UNIX - System V
address@hidden tmp]$ 

The same goes for STB_GNU_UNIQUE:

address@hidden tmp]$ cat type.s 
    .data
    .type    unique_global,%gnu_unique_object
unique_global:
    .byte    0x0
    .size    unique_global,1
address@hidden tmp]$ gcc -c type.s 
address@hidden tmp]$ ld -shared type.o
address@hidden tmp]$ readelf -h a.out | grep OS/ABI 
  OS/ABI:                            UNIX - GNU
address@hidden tmp]$ ld.gold -shared type.o
address@hidden tmp]$ readelf -h a.out | grep OS/ABI 
  OS/ABI:                            UNIX - System V
address@hidden tmp]$

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