chiark - git - mdw - termux-packages/blob - disabled-packages/proot/src-loader-assemble-arm64.h.patch

   1 See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=788113
   2
   3 diff -N -u -r ../PRoot-5.1.0/src/loader/assemble-arm64.h ./src/loader/assemble-arm64.h
   4 --- ../PRoot-5.1.0/src/loader/assembly-arm64.h  1969-12-31 19:00:00.000000000 -0500
   5 +++ ./src/loader/assembly-arm64.h       2016-01-08 20:12:46.494779723 -0500
   6 @@ -0,0 +1,93 @@
   7 +/* -*- c-set-style: "K&R"; c-basic-offset: 8 -*-
   8 + *
   9 + * This file is part of PRoot.
  10 + *
  11 + * Copyright (C) 2014 STMicroelectronics
  12 + *
  13 + * This program is free software; you can redistribute it and/or
  14 + * modify it under the terms of the GNU General Public License as
  15 + * published by the Free Software Foundation; either version 2 of the
  16 + * License, or (at your option) any later version.
  17 + *
  18 + * This program is distributed in the hope that it will be useful, but
  19 + * WITHOUT ANY WARRANTY; without even the implied warranty of
  20 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 + * General Public License for more details.
  22 + *
  23 + * You should have received a copy of the GNU General Public License
  24 + * along with this program; if not, write to the Free Software
  25 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  26 + * 02110-1301 USA.
  27 + */
  28 +
  29 +#define BRANCH(stack_pointer, destination) do {                        \
  30 +       asm volatile (                                          \
  31 +               "// Restore initial stack pointer.      \n\t"   \
  32 +               "mov sp, %0                             \n\t"   \
  33 +               "                                       \n\t"   \
  34 +               "// Clear rtld_fini.                    \n\t"   \
  35 +               "mov x0, #0                             \n\t"   \
  36 +               "                                       \n\t"   \
  37 +               "// Start the program.                  \n\t"   \
  38 +               "br %1                                  \n"     \
  39 +               : /* no output */                               \
  40 +               : "r" (stack_pointer), "r" (destination)        \
  41 +               : "memory", "sp", "x0");                        \
  42 +       __builtin_unreachable();                                \
  43 +       } while (0)
  44 +
  45 +#define PREPARE_ARGS_1(arg1_)                          \
  46 +       register word_t arg1 asm("x0") = arg1_;         \
  47 +
  48 +#define PREPARE_ARGS_3(arg1_, arg2_, arg3_)            \
  49 +       PREPARE_ARGS_1(arg1_)                           \
  50 +       register word_t arg2 asm("x1") = arg2_;         \
  51 +       register word_t arg3 asm("x2") = arg3_;         \
  52 +
  53 +#define PREPARE_ARGS_4(arg1_, arg2_, arg3_, arg4_)     \
  54 +       PREPARE_ARGS_3(arg1_, arg2_, arg3_)             \
  55 +       register word_t arg4 asm("x3") = arg4_;
  56 +
  57 +#define PREPARE_ARGS_6(arg1_, arg2_, arg3_, arg4_, arg5_, arg6_)       \
  58 +       PREPARE_ARGS_3(arg1_, arg2_, arg3_)                             \
  59 +       register word_t arg4 asm("x3") = arg4_;                         \
  60 +       register word_t arg5 asm("x4") = arg5_;                         \
  61 +       register word_t arg6 asm("x5") = arg6_;
  62 +
  63 +#define OUTPUT_CONTRAINTS_1                    \
  64 +       "r" (arg1)
  65 +
  66 +#define OUTPUT_CONTRAINTS_3                    \
  67 +       OUTPUT_CONTRAINTS_1,                    \
  68 +       "r" (arg2), "r" (arg3)
  69 +
  70 +#define OUTPUT_CONTRAINTS_4                    \
  71 +       OUTPUT_CONTRAINTS_3,                    \
  72 +       "r" (arg4)
  73 +
  74 +#define OUTPUT_CONTRAINTS_6                            \
  75 +       OUTPUT_CONTRAINTS_3,                            \
  76 +       "r" (arg4), "r" (arg5), "r" (arg6)
  77 +
  78 +#define SYSCALL(number_, nb_args, args...)                     \
  79 +       ({                                                      \
  80 +               register word_t number asm("w8") = number_;     \
  81 +               register word_t result asm("x0");               \
  82 +               PREPARE_ARGS_##nb_args(args)                    \
  83 +                       asm volatile (                          \
  84 +                               "svc #0x00000000        \n\t"   \
  85 +                               : "=r" (result)                 \
  86 +                               : "r" (number),                 \
  87 +                               OUTPUT_CONTRAINTS_##nb_args     \
  88 +                               : "memory");                    \
  89 +                       result;                                 \
  90 +       })
  91 +
  92 +#define OPENAT 56
  93 +#define CLOSE  57
  94 +#define MMAP   222
  95 +#define MMAP_OFFSET_SHIFT 0
  96 +#define EXECVE 221
  97 +#define EXIT   93
  98 +#define PRCTL  167
  99 +