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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/m68k/include/asm/elf.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/m68k/include/asm/elf.h')
-rw-r--r-- | arch/m68k/include/asm/elf.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/elf.h b/arch/m68k/include/asm/elf.h new file mode 100644 index 000000000..2def06a99 --- /dev/null +++ b/arch/m68k/include/asm/elf.h @@ -0,0 +1,126 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASMm68k_ELF_H +#define __ASMm68k_ELF_H + +/* + * ELF register definitions.. + */ + +#include <asm/ptrace.h> +#include <asm/user.h> + +/* + * 68k ELF relocation types + */ +#define R_68K_NONE 0 +#define R_68K_32 1 +#define R_68K_16 2 +#define R_68K_8 3 +#define R_68K_PC32 4 +#define R_68K_PC16 5 +#define R_68K_PC8 6 +#define R_68K_GOT32 7 +#define R_68K_GOT16 8 +#define R_68K_GOT8 9 +#define R_68K_GOT32O 10 +#define R_68K_GOT16O 11 +#define R_68K_GOT8O 12 +#define R_68K_PLT32 13 +#define R_68K_PLT16 14 +#define R_68K_PLT8 15 +#define R_68K_PLT32O 16 +#define R_68K_PLT16O 17 +#define R_68K_PLT8O 18 +#define R_68K_COPY 19 +#define R_68K_GLOB_DAT 20 +#define R_68K_JMP_SLOT 21 +#define R_68K_RELATIVE 22 + +typedef unsigned long elf_greg_t; + +#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef struct user_m68kfp_struct elf_fpregset_t; + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ((x)->e_machine == EM_68K) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2MSB +#define ELF_ARCH EM_68K + +/* For SVR4/m68k the function pointer to be registered with `atexit' is + passed in %a1. Although my copy of the ABI has no such statement, it + is actually used on ASV. */ +#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 + +#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, dynamic_addr) \ + do { \ + (_r)->d3 = _exec_map_addr; \ + (_r)->d4 = _interp_map_addr; \ + (_r)->d5 = dynamic_addr; \ + } while(0) + +#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE) +#define ELF_EXEC_PAGESIZE 8192 +#else +#define ELF_EXEC_PAGESIZE 4096 +#endif + +/* 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. */ + +#ifndef CONFIG_SUN3 +#define ELF_ET_DYN_BASE 0xD0000000UL +#else +#define ELF_ET_DYN_BASE 0x0D800000UL +#endif + +#define ELF_CORE_COPY_REGS(pr_reg, regs) \ + /* Bleech. */ \ + pr_reg[0] = regs->d1; \ + pr_reg[1] = regs->d2; \ + pr_reg[2] = regs->d3; \ + pr_reg[3] = regs->d4; \ + pr_reg[4] = regs->d5; \ + pr_reg[7] = regs->a0; \ + pr_reg[8] = regs->a1; \ + pr_reg[9] = regs->a2; \ + pr_reg[14] = regs->d0; \ + pr_reg[15] = rdusp(); \ + pr_reg[16] = regs->orig_d0; \ + pr_reg[17] = regs->sr; \ + pr_reg[18] = regs->pc; \ + pr_reg[19] = (regs->format << 12) | regs->vector; \ + { \ + struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ + pr_reg[5] = sw->d6; \ + pr_reg[6] = sw->d7; \ + pr_reg[10] = sw->a3; \ + pr_reg[11] = sw->a4; \ + pr_reg[12] = sw->a5; \ + pr_reg[13] = sw->a6; \ + } + +/* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. */ + +#define ELF_HWCAP (0) + +/* 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 ELF_FDPIC_CORE_EFLAGS 0 + +#endif |