glibc/elf/tst-unique2mod2.c

#include <config.h>

#ifdef HAVE_ASM_UNIQUE_OBJECT
asm (".data;"
     ".globl var\n"
     ".type var, %gnu_unique_object\n"
     ".size var, 4\n"
     "var:.zero 4\n"
     ".previous");
extern int var;

int
f (int *p)
{
  return &var != p || *p != 1;
}
#endif
Implement STB_GNU_UNIQUE handling. Some symbols have to be identified process-wide by their name. This is particularly important for some C++ features (e.g., class local static data and static variables in inline functions). This cannot completely be implemented with ELF functionality so far. The STB_GNU_UNIQUE binding helps by ensuring the dynamic linker will always use the same definition for all symbols with the same name and this binding. 2009-07-10 14:52:22 +08:00			`#include <config.h>`

			`#ifdef HAVE_ASM_UNIQUE_OBJECT`
			`asm (".data;"`
Get rid of ASM_GLOBAL_DIRECTIVE. 2012-07-10 20:30:24 +08:00			`".globl var\n"`
Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}. 2012-08-03 03:04:29 +08:00			`".type var, %gnu_unique_object\n"`
Implement STB_GNU_UNIQUE handling. Some symbols have to be identified process-wide by their name. This is particularly important for some C++ features (e.g., class local static data and static variables in inline functions). This cannot completely be implemented with ELF functionality so far. The STB_GNU_UNIQUE binding helps by ensuring the dynamic linker will always use the same definition for all symbols with the same name and this binding. 2009-07-10 14:52:22 +08:00			`".size var, 4\n"`
			`"var:.zero 4\n"`
			`".previous");`
			`extern int var;`

			`int`
			`f (int *p)`
			`{`
			`return &var != p \|\| *p != 1;`
			`}`
			`#endif`