1 #ifndef __ASM_SPARC64_ELF_H
2 #define __ASM_SPARC64_ELF_H
5 * ELF register definitions..
8 #include <asm/ptrace.h>
9 #include <asm/processor.h>
10 #include <asm/uaccess.h>
11 #include <asm/spitfire.h>
16 #define STT_REGISTER 13
19 * Sparc ELF relocation types
21 #define R_SPARC_NONE 0
25 #define R_SPARC_DISP8 4
26 #define R_SPARC_DISP16 5
27 #define R_SPARC_DISP32 6
28 #define R_SPARC_WDISP30 7
29 #define R_SPARC_WDISP22 8
30 #define R_SPARC_HI22 9
33 #define R_SPARC_LO10 12
34 #define R_SPARC_GOT10 13
35 #define R_SPARC_GOT13 14
36 #define R_SPARC_GOT22 15
37 #define R_SPARC_PC10 16
38 #define R_SPARC_PC22 17
39 #define R_SPARC_WPLT30 18
40 #define R_SPARC_COPY 19
41 #define R_SPARC_GLOB_DAT 20
42 #define R_SPARC_JMP_SLOT 21
43 #define R_SPARC_RELATIVE 22
44 #define R_SPARC_UA32 23
45 #define R_SPARC_PLT32 24
46 #define R_SPARC_HIPLT22 25
47 #define R_SPARC_LOPLT10 26
48 #define R_SPARC_PCPLT32 27
49 #define R_SPARC_PCPLT22 28
50 #define R_SPARC_PCPLT10 29
54 #define R_SPARC_OLO10 33
55 #define R_SPARC_WDISP16 40
56 #define R_SPARC_WDISP19 41
61 /* Bits present in AT_HWCAP, primarily for Sparc32. */
63 #define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
64 #define HWCAP_SPARC_STBAR 2
65 #define HWCAP_SPARC_SWAP 4
66 #define HWCAP_SPARC_MULDIV 8
67 #define HWCAP_SPARC_V9 16
68 #define HWCAP_SPARC_ULTRA3 32
69 #define HWCAP_SPARC_BLKINIT 64
70 #define HWCAP_SPARC_N2 128
72 #define CORE_DUMP_USE_REGSET
75 * These are used to set parameters in the core dumps.
77 #define ELF_ARCH EM_SPARCV9
78 #define ELF_CLASS ELFCLASS64
79 #define ELF_DATA ELFDATA2MSB
81 /* Format of 64-bit elf_gregset_t is:
91 typedef unsigned long elf_greg_t;
93 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
96 unsigned long pr_regs[32];
99 unsigned long pr_fprs;
102 /* Format of 32-bit elf_gregset_t is:
107 * PSR, PC, nPC, Y, WIM, TBR
109 typedef unsigned int compat_elf_greg_t;
110 #define COMPAT_ELF_NGREG 38
111 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
115 unsigned int pr_regs[32];
116 unsigned long pr_dregs[16];
118 unsigned int __unused;
120 unsigned char pr_qcnt;
121 unsigned char pr_q_entrysize;
123 unsigned int pr_q[64];
124 } compat_elf_fpregset_t;
126 /* UltraSparc extensions. Still unused, but will be eventually. */
128 unsigned int pr_type;
129 unsigned int pr_align;
133 unsigned int pr_regs[32];
134 unsigned long pr_dregs[16];
135 long double pr_qregs[8];
138 unsigned int pr_xfsr;
139 unsigned int pr_fprs;
140 unsigned int pr_xg[8];
141 unsigned int pr_xo[8];
142 unsigned long pr_tstate;
143 unsigned int pr_filler[8];
148 * This is used to ensure we don't load something for the wrong architecture.
150 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
151 #define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \
152 (x)->e_machine == EM_SPARC32PLUS)
153 #define compat_start_thread start_thread32
155 #define ELF_EXEC_PAGESIZE PAGE_SIZE
157 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
158 use of this is to invoke "./ld.so someprog" to test out a new version of
159 the loader. We need to make sure that it is out of the way of the program
160 that it will "exec", and that there is sufficient room for the brk. */
162 #define ELF_ET_DYN_BASE 0x0000010000000000UL
163 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
166 /* This yields a mask that user programs can use to figure out what
167 instruction set this cpu supports. */
169 /* On Ultra, we support all of the v8 capabilities. */
170 static inline unsigned int sparc64_elf_hwcap(void)
172 unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
173 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
176 if (tlb_type == cheetah || tlb_type == cheetah_plus)
177 cap |= HWCAP_SPARC_ULTRA3;
178 else if (tlb_type == hypervisor) {
179 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
180 sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
181 cap |= HWCAP_SPARC_BLKINIT;
182 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
183 cap |= HWCAP_SPARC_N2;
189 #define ELF_HWCAP sparc64_elf_hwcap();
191 /* This yields a string that ld.so will use to load implementation
192 specific libraries for optimization. This is more specific in
193 intent than poking at uname or /proc/cpuinfo. */
195 #define ELF_PLATFORM (NULL)
197 #define SET_PERSONALITY(ex) \
198 do { if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
199 set_thread_flag(TIF_32BIT); \
201 clear_thread_flag(TIF_32BIT); \
202 /* flush_thread will update pgd cache */ \
203 if (personality(current->personality) != PER_LINUX32) \
204 set_personality(PER_LINUX | \
205 (current->personality & (~PER_MASK))); \
208 #endif /* !(__ASM_SPARC64_ELF_H) */