sim/testsuite/sim/or1k/or1k-asm-test-env.h

   1 /* Testsuite macros for OpenRISC.
   2
   3    Copyright (C) 2017-2019 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef OR1K_ASM_TEST_ENV_H
  19 #define OR1K_ASM_TEST_ENV_H
  20
  21 #include "or1k-asm.h"
  22 #include "or1k-asm-test.h"
  23
  24         .macro STANDARD_TEST_HEADER
  25         /* Without the "a" (allocatable) flag, this section gets some
  26            default flags and is discarded by objcopy when flattening to
  27            the binary file.  */
  28         .section .exception_vectors, "ax"
  29         .org    0x100
  30         .global _start
  31 _start:
  32         /* Clear R0 on start-up. There is no guarantee that R0 is hardwired
  33            to zero and indeed it is not when simulating.  */
  34         CLEAR_REG r0
  35         OR1K_DELAYED_NOP(l.j test_startup)
  36         .section .text
  37 test_startup:
  38         .endm
  39
  40         .macro STANDARD_TEST_BODY
  41         LOAD_IMMEDIATE STACK_POINTER_R1, stack_begin
  42         CLEAR_BSS r3, r4
  43         CALL r3, start_tests
  44         EXIT_SIMULATION_WITH_IMMEDIATE_EXIT_CODE SEC_SUCCESS
  45         .section .stack
  46         .space 4096 /* We need more than EXCEPTION_STACK_SKIP_SIZE bytes.  */
  47 stack_begin:
  48         .endm
  49
  50         .macro STANDARD_TEST_ENVIRONMENT
  51         /* One of the test cases needs to do some tests before setting up
  52            the stack and so on.  That's the reason this macro is split into
  53            2 parts allowing the caller to inject code between the 2
  54            initialisation phases.  */
  55         STANDARD_TEST_HEADER
  56         STANDARD_TEST_BODY
  57         .endm
  58
  59 #endif /* OR1K_ASM_TEST_ENV_H */