about summary refs log tree commit diff
path: root/sysdeps/powerpc/tls-macros.h
blob: e9c25434e148e5b208eb92080a1213d16a7ad88b (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
#define __TLS_CALL_CLOBBERS						      \
	"0", "4", "5", "6", "7", "8", "9", "10", "11", "12",		      \
	"lr", "ctr", "cr0", "cr1", "cr5", "cr6", "cr7"

#ifndef __powerpc64__

# include "config.h"

/* PowerPC32 Local Exec TLS access.  */
# define TLS_LE(x)							      \
  ({ int *__result;							      \
     asm ("addi %0,2," #x "@tprel"					      \
	  : "=r" (__result));						      \
     __result; })

/* PowerPC32 Initial Exec TLS access.  */
# ifdef HAVE_ASM_PPC_REL16
#  define TLS_IE(x)							      \
  ({ int *__result;							      \
     asm ("bcl 20,31,1f\n1:\t"						      \
	  "mflr %0\n\t"							      \
	  "addis %0,%0,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t"			      \
	  "addi %0,%0,_GLOBAL_OFFSET_TABLE_-1b@l\n\t"			      \
	  "lwz %0," #x "@got@tprel(%0)\n\t"				      \
	  "add %0,%0," #x "@tls"					      \
	  : "=b" (__result) :						      \
	  : "lr");							      \
     __result; })
# else
#  define TLS_IE(x)							      \
  ({ int *__result;							      \
     asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t"			      \
	  "mflr %0\n\t"							      \
	  "lwz %0," #x "@got@tprel(%0)\n\t"				      \
	  "add %0,%0," #x "@tls"					      \
	  : "=b" (__result) :						      \
	  : "lr");							      \
     __result; })
# endif

/* PowerPC32 Local Dynamic TLS access.  */
# ifdef HAVE_ASM_PPC_REL16
#  define TLS_LD(x)							      \
  ({ int *__result;							      \
     asm ("bcl 20,31,1f\n1:\t"						      \
	  "mflr 3\n\t"							      \
	  "addis 3,3,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t"			      \
	  "addi 3,3,_GLOBAL_OFFSET_TABLE_-1b@l\n\t"			      \
	  "addi 3,3," #x "@got@tlsld\n\t"				      \
	  "bl __tls_get_addr@plt\n\t"					      \
	  "addi %0,3," #x "@dtprel"					      \
	  : "=r" (__result) :						      \
	  : "3", __TLS_CALL_CLOBBERS);					      \
     __result; })
# else
#  define TLS_LD(x)							      \
  ({ int *__result;							      \
     asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t"			      \
	  "mflr 3\n\t"							      \
	  "addi 3,3," #x "@got@tlsld\n\t"				      \
	  "bl __tls_get_addr@plt\n\t"					      \
	  "addi %0,3," #x "@dtprel"					      \
	  : "=r" (__result) :						      \
	  : "3", __TLS_CALL_CLOBBERS);					      \
     __result; })
# endif

/* PowerPC32 General Dynamic TLS access.  */
# ifdef HAVE_ASM_PPC_REL16
#  define TLS_GD(x)							      \
  ({ register int *__result __asm__ ("r3");				      \
     asm ("bcl 20,31,1f\n1:\t"						      \
	  "mflr 3\n\t"							      \
	  "addis 3,3,_GLOBAL_OFFSET_TABLE_-1b@ha\n\t"			      \
	  "addi 3,3,_GLOBAL_OFFSET_TABLE_-1b@l\n\t"			      \
	  "addi 3,3," #x "@got@tlsgd\n\t"				      \
	  "bl __tls_get_addr@plt"					      \
	  : "=r" (__result) :						      \
	  : __TLS_CALL_CLOBBERS);					      \
     __result; })
# else
#  define TLS_GD(x)							      \
  ({ register int *__result __asm__ ("r3");				      \
     asm ("bl _GLOBAL_OFFSET_TABLE_@local-4\n\t"			      \
	  "mflr 3\n\t"							      \
	  "addi 3,3," #x "@got@tlsgd\n\t"				      \
	  "bl __tls_get_addr@plt"					      \
	  : "=r" (__result) :						      \
	  : __TLS_CALL_CLOBBERS);					      \
     __result; })
# endif

#else

/* PowerPC64 Local Exec TLS access.  */
# define TLS_LE(x)							      \
  ({ int * __result;							      \
     asm ("addis %0,13," #x "@tprel@ha\n\t"				      \
	  "addi  %0,%0," #x "@tprel@l"					      \
	  : "=b" (__result) );						      \
     __result;								      \
  })
/* PowerPC64 Initial Exec TLS access.  */
# define TLS_IE(x)							      \
  ({ int * __result;							      \
     asm ("ld  %0," #x "@got@tprel(2)\n\t"				      \
	  "add %0,%0," #x "@tls"					      \
	  : "=r" (__result) );						      \
     __result;								      \
  })
# ifdef HAVE_ASM_GLOBAL_DOT_NAME
#  define __TLS_GET_ADDR ".__tls_get_addr"
# else
#  define __TLS_GET_ADDR "__tls_get_addr"
# endif
/* PowerPC64 Local Dynamic TLS access.  */
# define TLS_LD(x)							      \
  ({ int * __result;							      \
     asm ("addi  3,2," #x "@got@tlsld\n\t"				      \
	  "bl    " __TLS_GET_ADDR "\n\t"				      \
	  "nop   \n\t"							      \
	  "addis %0,3," #x "@dtprel@ha\n\t"				      \
	  "addi  %0,%0," #x "@dtprel@l"					      \
	  : "=b" (__result) :						      \
	  : "3", __TLS_CALL_CLOBBERS);					      \
     __result;								      \
  })
/* PowerPC64 General Dynamic TLS access.  */
# define TLS_GD(x)							      \
  ({ register int *__result __asm__ ("r3");				      \
     asm ("addi  3,2," #x "@got@tlsgd\n\t"				      \
	  "bl    " __TLS_GET_ADDR "\n\t"				      \
	  "nop   "							      \
	  : "=r" (__result) :						      \
	  : __TLS_CALL_CLOBBERS);					      \
     __result;								      \
  })
#endif