arch/cris/include/uapi/asm/elf_v32.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _ASM_CRIS_ELF_H
   3 #define _ASM_CRIS_ELF_H
   4
   5 #define ELF_CORE_EFLAGS EF_CRIS_VARIANT_V32
   6
   7 /* Matches struct user_regs_struct */
   8 #define ELF_NGREG 32
   9
  10 /*
  11  * This is used to ensure we don't load something for the wrong architecture.
  12  */
  13 #define elf_check_arch(x)                       \
  14  ((x)->e_machine == EM_CRIS                     \
  15   && ((((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_V32     \
  16       || (((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_COMMON_V10_V32))))
  17
  18 /* CRISv32 ELF register definitions. */
  19
  20 #include <asm/ptrace.h>
  21
  22 /* Explicitly zero out registers to increase determinism. */
  23 #define ELF_PLAT_INIT(_r, load_addr)    do { \
  24         (_r)->r13 = 0; (_r)->r12 = 0; (_r)->r11 = 0; (_r)->r10 = 0; \
  25         (_r)->r9 = 0;  (_r)->r8 = 0;  (_r)->r7 = 0;  (_r)->r6 = 0;  \
  26         (_r)->r5 = 0;  (_r)->r4 = 0;  (_r)->r3 = 0;  (_r)->r2 = 0;  \
  27         (_r)->r1 = 0;  (_r)->r0 = 0;  (_r)->mof = 0; (_r)->srp = 0; \
  28         (_r)->acr = 0; \
  29 } while (0)
  30
  31 /*
  32  * An executable for which elf_read_implies_exec() returns TRUE will
  33  * have the READ_IMPLIES_EXEC personality flag set automatically.
  34  */
  35 #define elf_read_implies_exec_binary(ex, have_pt_gnu_stack)     (!(have_pt_gnu_stack))
  36
  37 /*
  38  * This is basically a pt_regs with the additional definition
  39  * of the stack pointer since it's needed in a core dump.
  40  * pr_regs is a elf_gregset_t and should be filled according
  41  * to the layout of user_regs_struct.
  42  */
  43 #define ELF_CORE_COPY_REGS(pr_reg, regs)                   \
  44         pr_reg[0] = regs->r0;                              \
  45         pr_reg[1] = regs->r1;                              \
  46         pr_reg[2] = regs->r2;                              \
  47         pr_reg[3] = regs->r3;                              \
  48         pr_reg[4] = regs->r4;                              \
  49         pr_reg[5] = regs->r5;                              \
  50         pr_reg[6] = regs->r6;                              \
  51         pr_reg[7] = regs->r7;                              \
  52         pr_reg[8] = regs->r8;                              \
  53         pr_reg[9] = regs->r9;                              \
  54         pr_reg[10] = regs->r10;                            \
  55         pr_reg[11] = regs->r11;                            \
  56         pr_reg[12] = regs->r12;                            \
  57         pr_reg[13] = regs->r13;                            \
  58         pr_reg[14] = rdusp();               /* SP */       \
  59         pr_reg[15] = regs->acr;             /* ACR */      \
  60         pr_reg[16] = 0;                     /* BZ */       \
  61         pr_reg[17] = rdvr();                /* VR */       \
  62         pr_reg[18] = 0;                     /* PID */      \
  63         pr_reg[19] = regs->srs;             /* SRS */      \
  64         pr_reg[20] = 0;                     /* WZ */       \
  65         pr_reg[21] = regs->exs;             /* EXS */      \
  66         pr_reg[22] = regs->eda;             /* EDA */      \
  67         pr_reg[23] = regs->mof;             /* MOF */      \
  68         pr_reg[24] = 0;                     /* DZ */       \
  69         pr_reg[25] = 0;                     /* EBP */      \
  70         pr_reg[26] = regs->erp;             /* ERP */      \
  71         pr_reg[27] = regs->srp;             /* SRP */      \
  72         pr_reg[28] = 0;                     /* NRP */      \
  73         pr_reg[29] = regs->ccs;             /* CCS */      \
  74         pr_reg[30] = rdusp();               /* USP */      \
  75         pr_reg[31] = regs->spc;             /* SPC */      \
  76
  77 #endif /* _ASM_CRIS_ELF_H */