mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 06:40:54 +07:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
161 lines
5.0 KiB
C
161 lines
5.0 KiB
C
#ifndef __PPC_ELF_H
|
|
#define __PPC_ELF_H
|
|
|
|
/*
|
|
* ELF register definitions..
|
|
*/
|
|
#include <asm/types.h>
|
|
#include <asm/ptrace.h>
|
|
#include <asm/cputable.h>
|
|
|
|
/* PowerPC relocations defined by the ABIs */
|
|
#define R_PPC_NONE 0
|
|
#define R_PPC_ADDR32 1 /* 32bit absolute address */
|
|
#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
|
|
#define R_PPC_ADDR16 3 /* 16bit absolute address */
|
|
#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
|
|
#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
|
|
#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
|
|
#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
|
|
#define R_PPC_ADDR14_BRTAKEN 8
|
|
#define R_PPC_ADDR14_BRNTAKEN 9
|
|
#define R_PPC_REL24 10 /* PC relative 26 bit */
|
|
#define R_PPC_REL14 11 /* PC relative 16 bit */
|
|
#define R_PPC_REL14_BRTAKEN 12
|
|
#define R_PPC_REL14_BRNTAKEN 13
|
|
#define R_PPC_GOT16 14
|
|
#define R_PPC_GOT16_LO 15
|
|
#define R_PPC_GOT16_HI 16
|
|
#define R_PPC_GOT16_HA 17
|
|
#define R_PPC_PLTREL24 18
|
|
#define R_PPC_COPY 19
|
|
#define R_PPC_GLOB_DAT 20
|
|
#define R_PPC_JMP_SLOT 21
|
|
#define R_PPC_RELATIVE 22
|
|
#define R_PPC_LOCAL24PC 23
|
|
#define R_PPC_UADDR32 24
|
|
#define R_PPC_UADDR16 25
|
|
#define R_PPC_REL32 26
|
|
#define R_PPC_PLT32 27
|
|
#define R_PPC_PLTREL32 28
|
|
#define R_PPC_PLT16_LO 29
|
|
#define R_PPC_PLT16_HI 30
|
|
#define R_PPC_PLT16_HA 31
|
|
#define R_PPC_SDAREL16 32
|
|
#define R_PPC_SECTOFF 33
|
|
#define R_PPC_SECTOFF_LO 34
|
|
#define R_PPC_SECTOFF_HI 35
|
|
#define R_PPC_SECTOFF_HA 36
|
|
/* Keep this the last entry. */
|
|
#define R_PPC_NUM 37
|
|
|
|
#define ELF_NGREG 48 /* includes nip, msr, lr, etc. */
|
|
#define ELF_NFPREG 33 /* includes fpscr */
|
|
#define ELF_NVRREG 33 /* includes vscr */
|
|
#define ELF_NEVRREG 34 /* includes acc (as 2) */
|
|
|
|
/*
|
|
* These are used to set parameters in the core dumps.
|
|
*/
|
|
#define ELF_ARCH EM_PPC
|
|
#define ELF_CLASS ELFCLASS32
|
|
#define ELF_DATA ELFDATA2MSB
|
|
|
|
/* General registers */
|
|
typedef unsigned long elf_greg_t;
|
|
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
|
|
|
|
/* Floating point registers */
|
|
typedef double elf_fpreg_t;
|
|
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
|
|
|
|
/* Altivec registers */
|
|
typedef __vector128 elf_vrreg_t;
|
|
typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG];
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct task_struct;
|
|
|
|
/*
|
|
* This is used to ensure we don't load something for the wrong architecture.
|
|
*/
|
|
|
|
#define elf_check_arch(x) ((x)->e_machine == EM_PPC)
|
|
|
|
/* 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 (0x08000000)
|
|
|
|
#define USE_ELF_CORE_DUMP
|
|
#define ELF_EXEC_PAGESIZE 4096
|
|
|
|
#define ELF_CORE_COPY_REGS(gregs, regs) \
|
|
memcpy((gregs), (regs), sizeof(struct pt_regs)); \
|
|
memset((char *)(gregs) + sizeof(struct pt_regs), 0, \
|
|
sizeof(elf_gregset_t) - sizeof(struct pt_regs));
|
|
|
|
#define ELF_CORE_COPY_TASK_REGS(t, elfregs) \
|
|
((t)->thread.regs? \
|
|
({ ELF_CORE_COPY_REGS((elfregs), (t)->thread.regs); 1; }): 0)
|
|
|
|
extern int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpu);
|
|
#define ELF_CORE_COPY_FPREGS(t, fpu) dump_task_fpu((t), (fpu))
|
|
|
|
/* This yields a mask that user programs can use to figure out what
|
|
instruction set this cpu supports. This could be done in userspace,
|
|
but it's not easy, and we've already done it here. */
|
|
|
|
#define ELF_HWCAP (cur_cpu_spec[0]->cpu_user_features)
|
|
|
|
/* 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.
|
|
|
|
For the moment, we have only optimizations for the Intel generations,
|
|
but that could change... */
|
|
|
|
#define ELF_PLATFORM (NULL)
|
|
|
|
#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
|
|
|
|
/*
|
|
* We need to put in some extra aux table entries to tell glibc what
|
|
* the cache block size is, so it can use the dcbz instruction safely.
|
|
*/
|
|
#define AT_DCACHEBSIZE 19
|
|
#define AT_ICACHEBSIZE 20
|
|
#define AT_UCACHEBSIZE 21
|
|
/* A special ignored type value for PPC, for glibc compatibility. */
|
|
#define AT_IGNOREPPC 22
|
|
|
|
extern int dcache_bsize;
|
|
extern int icache_bsize;
|
|
extern int ucache_bsize;
|
|
|
|
/*
|
|
* The requirements here are:
|
|
* - keep the final alignment of sp (sp & 0xf)
|
|
* - make sure the 32-bit value at the first 16 byte aligned position of
|
|
* AUXV is greater than 16 for glibc compatibility.
|
|
* AT_IGNOREPPC is used for that.
|
|
* - for compatibility with glibc ARCH_DLINFO must always be defined on PPC,
|
|
* even if DLINFO_ARCH_ITEMS goes to zero or is undefined.
|
|
*/
|
|
#define ARCH_DLINFO \
|
|
do { \
|
|
/* Handle glibc compatibility. */ \
|
|
NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
|
|
NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
|
|
/* Cache size items */ \
|
|
NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize); \
|
|
NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize); \
|
|
NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize); \
|
|
} while (0)
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif
|