xref: /openbmc/linux/arch/sparc/include/asm/elf_32.h (revision 293d5b43)
1 #ifndef __ASMSPARC_ELF_H
2 #define __ASMSPARC_ELF_H
3 
4 /*
5  * ELF register definitions..
6  */
7 
8 #include <asm/ptrace.h>
9 
10 /*
11  * Sparc section types
12  */
13 #define STT_REGISTER		13
14 
15 /*
16  * Sparc ELF relocation types
17  */
18 #define	R_SPARC_NONE		0
19 #define	R_SPARC_8		1
20 #define	R_SPARC_16		2
21 #define	R_SPARC_32		3
22 #define	R_SPARC_DISP8		4
23 #define	R_SPARC_DISP16		5
24 #define	R_SPARC_DISP32		6
25 #define	R_SPARC_WDISP30		7
26 #define	R_SPARC_WDISP22		8
27 #define	R_SPARC_HI22		9
28 #define	R_SPARC_22		10
29 #define	R_SPARC_13		11
30 #define	R_SPARC_LO10		12
31 #define	R_SPARC_GOT10		13
32 #define	R_SPARC_GOT13		14
33 #define	R_SPARC_GOT22		15
34 #define	R_SPARC_PC10		16
35 #define	R_SPARC_PC22		17
36 #define	R_SPARC_WPLT30		18
37 #define	R_SPARC_COPY		19
38 #define	R_SPARC_GLOB_DAT	20
39 #define	R_SPARC_JMP_SLOT	21
40 #define	R_SPARC_RELATIVE	22
41 #define	R_SPARC_UA32		23
42 #define R_SPARC_PLT32		24
43 #define R_SPARC_HIPLT22		25
44 #define R_SPARC_LOPLT10		26
45 #define R_SPARC_PCPLT32		27
46 #define R_SPARC_PCPLT22		28
47 #define R_SPARC_PCPLT10		29
48 #define R_SPARC_10		30
49 #define R_SPARC_11		31
50 #define R_SPARC_64		32
51 #define R_SPARC_OLO10		33
52 #define R_SPARC_WDISP16		40
53 #define R_SPARC_WDISP19		41
54 #define R_SPARC_7		43
55 #define R_SPARC_5		44
56 #define R_SPARC_6		45
57 
58 /* Bits present in AT_HWCAP, primarily for Sparc32.  */
59 
60 #define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
61 #define HWCAP_SPARC_STBAR       2
62 #define HWCAP_SPARC_SWAP        4
63 #define HWCAP_SPARC_MULDIV      8
64 #define HWCAP_SPARC_V9		16
65 #define HWCAP_SPARC_ULTRA3	32
66 
67 #define CORE_DUMP_USE_REGSET
68 
69 /* Format is:
70  * 	G0 --> G7
71  *	O0 --> O7
72  *	L0 --> L7
73  *	I0 --> I7
74  *	PSR, PC, nPC, Y, WIM, TBR
75  */
76 typedef unsigned long elf_greg_t;
77 #define ELF_NGREG 38
78 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
79 
80 typedef struct {
81 	union {
82 		unsigned long	pr_regs[32];
83 		double		pr_dregs[16];
84 	} pr_fr;
85 	unsigned long __unused;
86 	unsigned long	pr_fsr;
87 	unsigned char	pr_qcnt;
88 	unsigned char	pr_q_entrysize;
89 	unsigned char	pr_en;
90 	unsigned int	pr_q[64];
91 } elf_fpregset_t;
92 
93 #include <asm/mbus.h>
94 
95 /*
96  * This is used to ensure we don't load something for the wrong architecture.
97  */
98 #define elf_check_arch(x) ((x)->e_machine == EM_SPARC)
99 
100 /*
101  * These are used to set parameters in the core dumps.
102  */
103 #define ELF_ARCH	EM_SPARC
104 #define ELF_CLASS	ELFCLASS32
105 #define ELF_DATA	ELFDATA2MSB
106 
107 #define ELF_EXEC_PAGESIZE	4096
108 
109 
110 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
111    use of this is to invoke "./ld.so someprog" to test out a new version of
112    the loader.  We need to make sure that it is out of the way of the program
113    that it will "exec", and that there is sufficient room for the brk.  */
114 
115 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE)
116 
117 /* This yields a mask that user programs can use to figure out what
118    instruction set this cpu supports.  This can NOT be done in userspace
119    on Sparc.  */
120 
121 /* Most sun4m's have them all.  */
122 #define ELF_HWCAP	(HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
123 			 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV)
124 
125 /* This yields a string that ld.so will use to load implementation
126    specific libraries for optimization.  This is more specific in
127    intent than poking at uname or /proc/cpuinfo. */
128 
129 #define ELF_PLATFORM	(NULL)
130 
131 #endif /* !(__ASMSPARC_ELF_H) */
132