[Bug ld/14968] New: Missing R_*_IRELATIVE relocation

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=14968

             Bug #: 14968
           Summary: Missing R_*_IRELATIVE relocation
           Product: binutils
           Version: 2.24 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
        AssignedTo: unassig...@sourceware.org
        ReportedBy: hjl.to...@gmail.com
    Classification: Unclassified


[hjl@gnu-6 ifunc-global]$ cat foo.c
static int
two (void)
{
  return 2;
}

void * foo_ifunc (void) __asm__ ("foo1") __attribute__ ((visibility
("hidden")));
__asm__(".type foo, %gnu_indirect_function");
__asm__("foo = foo1");
__asm__(".hidden foo");
__asm__(".global foo");

void * 
foo_ifunc (void)
{
  return two;
}

extern int foo (void);

int
bar (void)
{
  return foo ();
}
[hjl@gnu-6 ifunc-global]$ cat bar.c
extern int foo (void);
int (*foo1_ptr) (void) = foo;
[hjl@gnu-6 ifunc-global]$ cat main.c 
#include <stdlib.h>

extern int (*foo1_ptr) (void);

int
main (void)
{
  int foo1;

  foo1 = foo1_ptr ();
  if (foo1 != 2)
    abort ();
  return 0;
}
[hjl@gnu-6 ifunc-global]$ make
gcc  -g   -c -o main.o main.c
gcc  -g -fPIC   -c -o bar.o bar.c
gcc  -g -fPIC   -c -o foo.o foo.c
./ld  --shared -o libfoo.so -z nocombreloc bar.o foo.o
gcc  -o main main.o libfoo.so -Wl,-rpath,.
readelf -r --wide libfoo.so

Relocation section '.rela.plt' at offset 0x220 contains 1 entries:
    Offset             Info             Type               Symbol's Value 
Symbol's Name + Addend
0000000000200430  0000000000000025 R_X86_64_IRELATIVE                       
26b
./main
make: *** [all] Segmentation fault
[hjl@gnu-6 ifunc-global]$

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