mirror of
https://github.com/torvalds/linux.git
synced 2024-11-02 02:01:29 +00:00
ac85fe8b21
Instead of evaluating the cpu features for ELF_HWCAP every exec, calculate it once at boot time. Add AV_SPARC_* capability flag bits, compatible with what Solaris reports to applications. Report these capabilities once in the kernel log, and also via /proc/cpuinfo in a new "cpucaps" entry. If available, fetch the cpu features from the machine description 'hwcap-list' property of the 'cpu' node. Signed-off-by: David S. Miller <davem@davemloft.net>
204 lines
5.6 KiB
C
204 lines
5.6 KiB
C
#ifndef __ASM_SPARC64_ELF_H
|
|
#define __ASM_SPARC64_ELF_H
|
|
|
|
/*
|
|
* ELF register definitions..
|
|
*/
|
|
|
|
#include <asm/ptrace.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/uaccess.h>
|
|
#include <asm/spitfire.h>
|
|
|
|
/*
|
|
* Sparc section types
|
|
*/
|
|
#define STT_REGISTER 13
|
|
|
|
/*
|
|
* Sparc ELF relocation types
|
|
*/
|
|
#define R_SPARC_NONE 0
|
|
#define R_SPARC_8 1
|
|
#define R_SPARC_16 2
|
|
#define R_SPARC_32 3
|
|
#define R_SPARC_DISP8 4
|
|
#define R_SPARC_DISP16 5
|
|
#define R_SPARC_DISP32 6
|
|
#define R_SPARC_WDISP30 7
|
|
#define R_SPARC_WDISP22 8
|
|
#define R_SPARC_HI22 9
|
|
#define R_SPARC_22 10
|
|
#define R_SPARC_13 11
|
|
#define R_SPARC_LO10 12
|
|
#define R_SPARC_GOT10 13
|
|
#define R_SPARC_GOT13 14
|
|
#define R_SPARC_GOT22 15
|
|
#define R_SPARC_PC10 16
|
|
#define R_SPARC_PC22 17
|
|
#define R_SPARC_WPLT30 18
|
|
#define R_SPARC_COPY 19
|
|
#define R_SPARC_GLOB_DAT 20
|
|
#define R_SPARC_JMP_SLOT 21
|
|
#define R_SPARC_RELATIVE 22
|
|
#define R_SPARC_UA32 23
|
|
#define R_SPARC_PLT32 24
|
|
#define R_SPARC_HIPLT22 25
|
|
#define R_SPARC_LOPLT10 26
|
|
#define R_SPARC_PCPLT32 27
|
|
#define R_SPARC_PCPLT22 28
|
|
#define R_SPARC_PCPLT10 29
|
|
#define R_SPARC_10 30
|
|
#define R_SPARC_11 31
|
|
#define R_SPARC_64 32
|
|
#define R_SPARC_OLO10 33
|
|
#define R_SPARC_WDISP16 40
|
|
#define R_SPARC_WDISP19 41
|
|
#define R_SPARC_7 43
|
|
#define R_SPARC_5 44
|
|
#define R_SPARC_6 45
|
|
|
|
/* Bits present in AT_HWCAP, primarily for Sparc32. */
|
|
#define HWCAP_SPARC_FLUSH 0x00000001
|
|
#define HWCAP_SPARC_STBAR 0x00000002
|
|
#define HWCAP_SPARC_SWAP 0x00000004
|
|
#define HWCAP_SPARC_MULDIV 0x00000008
|
|
#define HWCAP_SPARC_V9 0x00000010
|
|
#define HWCAP_SPARC_ULTRA3 0x00000020
|
|
#define HWCAP_SPARC_BLKINIT 0x00000040
|
|
#define HWCAP_SPARC_N2 0x00000080
|
|
|
|
/* Solaris compatible AT_HWCAP bits. */
|
|
#define AV_SPARC_MUL32 0x00000100 /* 32x32 multiply is efficient */
|
|
#define AV_SPARC_DIV32 0x00000200 /* 32x32 divide is efficient */
|
|
#define AV_SPARC_FSMULD 0x00000400 /* 'fsmuld' is efficient */
|
|
#define AV_SPARC_V8PLUS 0x00000800 /* v9 insn available to 32bit */
|
|
#define AV_SPARC_POPC 0x00001000 /* 'popc' is efficient */
|
|
#define AV_SPARC_VIS 0x00002000 /* VIS insns available */
|
|
#define AV_SPARC_VIS2 0x00004000 /* VIS2 insns available */
|
|
#define AV_SPARC_ASI_BLK_INIT 0x00008000 /* block init ASIs available */
|
|
#define AV_SPARC_FMAF 0x00010000 /* fused multiply-add */
|
|
#define AV_SPARC_VIS3 0x00020000 /* VIS3 insns available */
|
|
#define AV_SPARC_HPC 0x00040000 /* HPC insns available */
|
|
#define AV_SPARC_RANDOM 0x00080000 /* 'random' insn available */
|
|
#define AV_SPARC_TRANS 0x00100000 /* transaction insns available */
|
|
#define AV_SPARC_FJFMAU 0x00200000 /* unfused multiply-add */
|
|
#define AV_SPARC_IMA 0x00400000 /* integer multiply-add */
|
|
#define AV_SPARC_ASI_CACHE_SPARING \
|
|
0x00800000 /* cache sparing ASIs available */
|
|
|
|
#define CORE_DUMP_USE_REGSET
|
|
|
|
/*
|
|
* These are used to set parameters in the core dumps.
|
|
*/
|
|
#define ELF_ARCH EM_SPARCV9
|
|
#define ELF_CLASS ELFCLASS64
|
|
#define ELF_DATA ELFDATA2MSB
|
|
|
|
/* Format of 64-bit elf_gregset_t is:
|
|
* G0 --> G7
|
|
* O0 --> O7
|
|
* L0 --> L7
|
|
* I0 --> I7
|
|
* TSTATE
|
|
* TPC
|
|
* TNPC
|
|
* Y
|
|
*/
|
|
typedef unsigned long elf_greg_t;
|
|
#define ELF_NGREG 36
|
|
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
|
|
|
|
typedef struct {
|
|
unsigned long pr_regs[32];
|
|
unsigned long pr_fsr;
|
|
unsigned long pr_gsr;
|
|
unsigned long pr_fprs;
|
|
} elf_fpregset_t;
|
|
|
|
/* Format of 32-bit elf_gregset_t is:
|
|
* G0 --> G7
|
|
* O0 --> O7
|
|
* L0 --> L7
|
|
* I0 --> I7
|
|
* PSR, PC, nPC, Y, WIM, TBR
|
|
*/
|
|
typedef unsigned int compat_elf_greg_t;
|
|
#define COMPAT_ELF_NGREG 38
|
|
typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
|
|
|
|
typedef struct {
|
|
union {
|
|
unsigned int pr_regs[32];
|
|
unsigned long pr_dregs[16];
|
|
} pr_fr;
|
|
unsigned int __unused;
|
|
unsigned int pr_fsr;
|
|
unsigned char pr_qcnt;
|
|
unsigned char pr_q_entrysize;
|
|
unsigned char pr_en;
|
|
unsigned int pr_q[64];
|
|
} compat_elf_fpregset_t;
|
|
|
|
/* UltraSparc extensions. Still unused, but will be eventually. */
|
|
typedef struct {
|
|
unsigned int pr_type;
|
|
unsigned int pr_align;
|
|
union {
|
|
struct {
|
|
union {
|
|
unsigned int pr_regs[32];
|
|
unsigned long pr_dregs[16];
|
|
long double pr_qregs[8];
|
|
} pr_xfr;
|
|
} pr_v8p;
|
|
unsigned int pr_xfsr;
|
|
unsigned int pr_fprs;
|
|
unsigned int pr_xg[8];
|
|
unsigned int pr_xo[8];
|
|
unsigned long pr_tstate;
|
|
unsigned int pr_filler[8];
|
|
} pr_un;
|
|
} elf_xregset_t;
|
|
|
|
/*
|
|
* This is used to ensure we don't load something for the wrong architecture.
|
|
*/
|
|
#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
|
|
#define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \
|
|
(x)->e_machine == EM_SPARC32PLUS)
|
|
#define compat_start_thread start_thread32
|
|
|
|
#define ELF_EXEC_PAGESIZE PAGE_SIZE
|
|
|
|
/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
|
|
use of this is to invoke "./ld.so someprog" to test out a new version of
|
|
the loader. We need to make sure that it is out of the way of the program
|
|
that it will "exec", and that there is sufficient room for the brk. */
|
|
|
|
#define ELF_ET_DYN_BASE 0x0000010000000000UL
|
|
#define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
|
|
|
|
extern unsigned long sparc64_elf_hwcap;
|
|
#define ELF_HWCAP sparc64_elf_hwcap
|
|
|
|
/* This yields a string that ld.so will use to load implementation
|
|
specific libraries for optimization. This is more specific in
|
|
intent than poking at uname or /proc/cpuinfo. */
|
|
|
|
#define ELF_PLATFORM (NULL)
|
|
|
|
#define SET_PERSONALITY(ex) \
|
|
do { if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
|
|
set_thread_flag(TIF_32BIT); \
|
|
else \
|
|
clear_thread_flag(TIF_32BIT); \
|
|
/* flush_thread will update pgd cache */ \
|
|
if (personality(current->personality) != PER_LINUX32) \
|
|
set_personality(PER_LINUX | \
|
|
(current->personality & (~PER_MASK))); \
|
|
} while (0)
|
|
|
|
#endif /* !(__ASM_SPARC64_ELF_H) */
|