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/* Symbol tables.  */

/* MIPS specific values for `st_other'.  */
#define STO_MIPS_DEFAULT		0x0
#define STO_MIPS_INTERNAL		0x1
#define STO_MIPS_HIDDEN			0x2
#define STO_MIPS_PROTECTED		0x3
#define STO_MIPS_PLT			0x8
#define STO_MIPS_SC_ALIGN_UNUSED	0xff

/* MIPS specific values for `st_info'.  */
#define STB_MIPS_SPLIT_COMMON		13

/* Entries found in sections of type SHT_MIPS_GPTAB.  */

typedef union
{
  struct
    {
      Elf32_Word gt_current_g_value;	/* -G value used for compilation */
      Elf32_Word gt_unused;		/* Not used */
    } gt_header;			/* First entry in section */
  struct
    {
      Elf32_Word gt_g_value;		/* If this value were used for -G */
      Elf32_Word gt_bytes;		/* This many bytes would be used */
    } gt_entry;				/* Subsequent entries in section */
} Elf32_gptab;

/* Entry found in sections of type SHT_MIPS_REGINFO.  */

typedef struct
{
  Elf32_Word	ri_gprmask;		/* General registers used */
  Elf32_Word	ri_cprmask[4];		/* Coprocessor registers used */
  Elf32_Sword	ri_gp_value;		/* $gp register value */
} Elf32_RegInfo;

/* Entries found in sections of type SHT_MIPS_OPTIONS.  */

typedef struct
{
  unsigned char kind;		/* Determines interpretation of the
				   variable part of descriptor.  */
  unsigned char size;		/* Size of descriptor, including header.  */
  Elf32_Section section;	/* Section header index of section affected,
				   0 for global options.  */
  Elf32_Word info;		/* Kind-specific information.  */
} Elf_Options;

/* Values for `kind' field in Elf_Options.  */

#define ODK_NULL	0	/* Undefined.  */
#define ODK_REGINFO	1	/* Register usage information.  */
#define ODK_EXCEPTIONS	2	/* Exception processing options.  */
#define ODK_PAD		3	/* Section padding options.  */
#define ODK_HWPATCH	4	/* Hardware workarounds performed */
#define ODK_FILL	5	/* record the fill value used by the linker. */
#define ODK_TAGS	6	/* reserve space for desktop tools to write. */
#define ODK_HWAND	7	/* HW workarounds.  'AND' bits when merging. */
#define ODK_HWOR	8	/* HW workarounds.  'OR' bits when merging.  */

/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries.  */

#define OEX_FPU_MIN	0x1f	/* FPE's which MUST be enabled.  */
#define OEX_FPU_MAX	0x1f00	/* FPE's which MAY be enabled.  */
#define OEX_PAGE0	0x10000	/* page zero must be mapped.  */
#define OEX_SMM		0x20000	/* Force sequential memory mode?  */
#define OEX_FPDBUG	0x40000	/* Force floating point debug mode?  */
#define OEX_PRECISEFP	OEX_FPDBUG
#define OEX_DISMISS	0x80000	/* Dismiss invalid address faults?  */

#define OEX_FPU_INVAL	0x10
#define OEX_FPU_DIV0	0x08
#define OEX_FPU_OFLO	0x04
#define OEX_FPU_UFLO	0x02
#define OEX_FPU_INEX	0x01

/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry.  */

#define OHW_R4KEOP	0x1	/* R4000 end-of-page patch.  */
#define OHW_R8KPFETCH	0x2	/* may need R8000 prefetch patch.  */
#define OHW_R5KEOP	0x4	/* R5000 end-of-page patch.  */
#define OHW_R5KCVTL	0x8	/* R5000 cvt.[ds].l bug.  clean=1.  */

#define OPAD_PREFIX	0x1
#define OPAD_POSTFIX	0x2
#define OPAD_SYMBOL	0x4

/* Entry found in `.options' section.  */

typedef struct
{
  Elf32_Word hwp_flags1;	/* Extra flags.  */
  Elf32_Word hwp_flags2;	/* Extra flags.  */
} Elf_Options_Hw;

/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries.  */

#define OHWA0_R4KEOP_CHECKED	0x00000001
#define OHWA1_R4KEOP_CLEAN	0x00000002

/* MIPS relocs.  */

#define R_MIPS_NONE		0	/* No reloc */
#define R_MIPS_16		1	/* Direct 16 bit */
#define R_MIPS_32		2	/* Direct 32 bit */
#define R_MIPS_REL32		3	/* PC relative 32 bit */
#define R_MIPS_26		4	/* Direct 26 bit shifted */
#define R_MIPS_HI16		5	/* High 16 bit */
#define R_MIPS_LO16		6	/* Low 16 bit */
#define R_MIPS_GPREL16		7	/* GP relative 16 bit */
#define R_MIPS_LITERAL		8	/* 16 bit literal entry */
#define R_MIPS_GOT16		9	/* 16 bit GOT entry */
#define R_MIPS_PC16		10	/* PC relative 16 bit */
#define R_MIPS_CALL16		11	/* 16 bit GOT entry for function */
#define R_MIPS_GPREL32		12	/* GP relative 32 bit */

#define R_MIPS_SHIFT5		16