mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
2cef4257d0
* elf/tst-tls1.c: Move TLS helper macros to... * elf/tls-macros.h: ...here. New file. * elf/tst-tls2.c: New file. * elf/Makefile (tests): Add tst-tls2. (distribute): Add tls-macros.h.
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* Macros to support TLS testing in times of missing compiler support. */
|
|
|
|
#define COMMON_INT_DEF(x) \
|
|
asm (".tls_common " #x ",4,4")
|
|
|
|
/* XXX This definition will probably be machine specific, too. */
|
|
#define VAR_INT_DEF(x) \
|
|
asm (".section .tdata\n\t" \
|
|
".globl " #x "\n" \
|
|
#x ":\t.long 0\n\t" \
|
|
".previous")
|
|
|
|
|
|
/* XXX Each architecture must have its own asm for now. */
|
|
#ifdef __i386__
|
|
# define TLS_LE(x) \
|
|
({ int *__l; \
|
|
asm ("movl %%gs:0,%0\n\t" \
|
|
"subl $" #x "@tpoff,%0" \
|
|
: "=r" (__l)); \
|
|
__l; })
|
|
|
|
#define TLS_IE(x) \
|
|
({ int *__l, __b; \
|
|
asm ("call 1f\n\t" \
|
|
".subsection 1\n" \
|
|
"1:\tmovl (%%esp), %%ebx\n\t" \
|
|
"ret\n\t" \
|
|
".previous\n\t" \
|
|
"addl $_GLOBAL_OFFSET_TABLE_, %%ebx\n\t" \
|
|
"movl %%gs:0,%0\n\t" \
|
|
"subl " #x "@gottpoff(%%ebx),%0" \
|
|
: "=r" (__l), "=&b" (__b)); \
|
|
__l; })
|
|
|
|
#define TLS_LD(x) \
|
|
({ int *__l, __b; \
|
|
asm ("call 1f\n\t" \
|
|
".subsection 1\n" \
|
|
"1:\tmovl (%%esp), %%ebx\n\t" \
|
|
"ret\n\t" \
|
|
".previous\n\t" \
|
|
"addl $_GLOBAL_OFFSET_TABLE_, %%ebx\n\t" \
|
|
"leal " #x "@tlsldm(%%ebx),%%eax\n\t" \
|
|
"call ___tls_get_addr@plt\n\t" \
|
|
"leal " #x "@dtpoff(%%eax), %%eax" \
|
|
: "=a" (__l), "=&b" (__b)); \
|
|
__l; })
|
|
|
|
#define TLS_GD(x) \
|
|
({ int *__l, __b; \
|
|
asm ("call 1f\n\t" \
|
|
".subsection 1\n" \
|
|
"1:\tmovl (%%esp), %%ebx\n\t" \
|
|
"ret\n\t" \
|
|
".previous\n\t" \
|
|
"addl $_GLOBAL_OFFSET_TABLE_, %%ebx\n\t" \
|
|
"leal " #x "@tlsgd(%%ebx),%%eax\n\t" \
|
|
"call ___tls_get_addr@plt\n\t" \
|
|
"nop" \
|
|
: "=a" (__l), "=&b" (__b)); \
|
|
__l; })
|
|
|
|
#else
|
|
# error "No support for this architecture so far."
|
|
#endif
|