tests/tcg/tricore: Add first C program
this allows us to exercise the startup code used by GCC to call main(). Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Message-Id: <20230526061946.54514-4-kbastian@mail.uni-paderborn.de>
This commit is contained in:
Bastian Koppelmann
parent
2b8e2992c3
commit
0e45f7beca
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@ -1383,6 +1383,7 @@ probe_target_compiler() {
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container_cross_prefix=tricore-
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container_cross_as=tricore-as
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container_cross_ld=tricore-ld
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container_cross_cc=tricore-gcc
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break
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;;
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x86_64)
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@ -1,8 +1,10 @@
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TESTS_PATH = $(SRC_PATH)/tests/tcg/tricore
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ASM_TESTS_PATH = $(TESTS_PATH)/asm
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C_TESTS_PATH = $(TESTS_PATH)/c
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LDFLAGS = -T$(TESTS_PATH)/link.ld --mcpu=tc162
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ASFLAGS = -mtc162
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CFLAGS = -mtc162 -c
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TESTS += test_abs.asm.tst
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TESTS += test_bmerge.asm.tst
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@ -20,6 +22,8 @@ TESTS += test_madd.asm.tst
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TESTS += test_msub.asm.tst
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TESTS += test_muls.asm.tst
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TESTS += test_boot_to_main.c.tst
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QEMU_OPTS += -M tricore_testboard -cpu tc27x -nographic -kernel
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%.pS: $(ASM_TESTS_PATH)/%.S
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@ -31,5 +35,14 @@ QEMU_OPTS += -M tricore_testboard -cpu tc27x -nographic -kernel
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%.asm.tst: %.o
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$(LD) $(LDFLAGS) $< -o $@
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crt0-tc2x.o: $(C_TESTS_PATH)/crt0-tc2x.S
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$(AS) $(ASFLAGS) -o $@ $<
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%.o: $(C_TESTS_PATH)/%.c
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$(CC) $(CFLAGS) -o $@ $<
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%.c.tst: %.o crt0-tc2x.o
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$(LD) $(LDFLAGS) -o $@ $^
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# We don't currently support the multiarch system tests
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undefine MULTIARCH_TESTS
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@ -0,0 +1,335 @@
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/*
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* crt0-tc2x.S -- Startup code for GNU/TriCore applications.
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*
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* Copyright (C) 1998-2014 HighTec EDV-Systeme GmbH.
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*
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* This file is part of GCC.
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*
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* GCC is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GCC is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Under Section 7 of GPL version 3, you are granted additional
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* permissions described in the GCC Runtime Library Exception, version
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* 3.1, as published by the Free Software Foundation.
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*
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* You should have received a copy of the GNU General Public License and
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* a copy of the GCC Runtime Library Exception along with this program;
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* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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* <http://www.gnu.org/licenses/>. */
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/* Define the Derivate Name as a hexvalue. This value
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* is built-in defined in tricore-c.c (from tricore-devices.c)
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* the derivate number as a hexvalue (e.g. TC1796 => 0x1796
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* This name will be used in the memory.x Memory description to
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* to confirm that the crt0.o and the memory.x will be get from
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* same directory
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*/
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.section ".startup_code", "ax", @progbits
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.global _start
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.type _start,@function
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/* default BMI header (only TC2xxx devices) */
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.word 0x00000000
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.word 0xb3590070
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.word 0x00000000
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.word 0x00000000
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.word 0x00000000
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.word 0x00000000
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.word 0x791eb864
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.word 0x86e1479b
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_start:
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.code32
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j _startaddr
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.align 2
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_startaddr:
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/*
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* initialize user and interrupt stack pointers
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*/
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movh.a %sp,hi:__USTACK # load %sp
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lea %sp,[%sp]lo:__USTACK
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movh %d0,hi:__ISTACK # load $isp
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addi %d0,%d0,lo:__ISTACK
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mtcr $isp,%d0
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isync
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#; install trap handlers
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movh %d0,hi:first_trap_table #; load $btv
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addi %d0,%d0,lo:first_trap_table
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mtcr $btv,%d0
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isync
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/*
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* initialize call depth counter
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*/
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mfcr %d0,$psw
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or %d0,%d0,0x7f # disable call depth counting
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andn %d0,%d0,0x80 # clear CDE bit
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mtcr $psw,%d0
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isync
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/*
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* initialize access to system global registers
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*/
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mfcr %d0,$psw
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or %d0,%d0,0x100 # set GW bit
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mtcr $psw,%d0
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isync
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/*
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* initialize SDA base pointers
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*/
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.global _SMALL_DATA_,_SMALL_DATA2_,_SMALL_DATA3_,_SMALL_DATA4_
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.weak _SMALL_DATA_,_SMALL_DATA2_,_SMALL_DATA3_,_SMALL_DATA4_
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movh.a %a0,hi:_SMALL_DATA_ # %a0 addresses .sdata/.sbss
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lea %a0,[%a0]lo:_SMALL_DATA_
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movh.a %a1,hi:_SMALL_DATA2_ # %a1 addresses .sdata2/.sbss2
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lea %a1,[%a1]lo:_SMALL_DATA2_
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movh.a %a8,hi:_SMALL_DATA3_ # %a8 addresses .sdata3/.sbss3
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lea %a8,[%a8]lo:_SMALL_DATA3_
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movh.a %a9,hi:_SMALL_DATA4_ # %a9 addresses .sdata4/.sbss4
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lea %a9,[%a9]lo:_SMALL_DATA4_
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/*
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* reset access to system global registers
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*/
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mfcr %d0,$psw
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andn %d0,%d0,0x100 # clear GW bit
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mtcr $psw,%d0
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isync
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/*
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* initialize context save areas
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*/
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jl __init_csa
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/*
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* handle clear table (i.e., fill BSS with zeros)
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*/
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jl __clear_table_func
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/*
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* handle copy table (support for romable code)
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*/
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jl __copy_table_func
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/*
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* _exit (main (0, NULL));
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*/
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mov %d4,0 # argc = 0
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sub.a %sp,8
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st.w [%sp]0,%d4
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st.w [%sp]4,%d4
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mov.aa %a4,%sp # argv
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call main # int retval = main (0, NULL);
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mov.a %a14,%d2 # move exit code to match trap handler
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j _exit # _exit (retval);
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debug # should never come here
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/*
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* initialize context save areas (CSAs), PCXI, LCX and FCX
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*/
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.global __init_csa
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.type __init_csa,function
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__init_csa:
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movh %d0,0
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mtcr $pcxi,%d0
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isync
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movh %d0,hi:__CSA_BEGIN #; %d0 = begin of CSA
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addi %d0,%d0,lo:__CSA_BEGIN
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addi %d0,%d0,63 #; force alignment (2^6)
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andn %d0,%d0,63
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movh %d2,hi:__CSA_END #; %d2 = end of CSA
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addi %d2,%d2,lo:__CSA_END
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andn %d2,%d2,63 #; force alignment (2^6)
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sub %d2,%d2,%d0
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sh %d2,%d2,-6 #; %d2 = number of CSAs
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mov.a %a3,%d0 #; %a3 = address of first CSA
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extr.u %d0,%d0,28,4 #; %d0 = segment << 16
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sh %d0,%d0,16
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lea %a4,0 #; %a4 = previous CSA = 0
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st.a [%a3],%a4 #; store it in 1st CSA
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mov.aa %a4,%a3 #; %a4 = current CSA
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lea %a3,[%a3]64 #; %a3 = %a3->nextCSA
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mov.d %d1,%a3
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extr.u %d1,%d1,6,16 #; get CSA index
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or %d1,%d1,%d0 #; add segment number
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mtcr $lcx,%d1 #; initialize LCX
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add %d2,%d2,-2 #; CSAs to initialize -= 2
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mov.a %a5,%d2 #; %a5 = loop counter
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csa_loop:
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mov.d %d1,%a4 #; %d1 = current CSA address
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extr.u %d1,%d1,6,16 #; get CSA index
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or %d1,%d1,%d0 #; add segment number
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st.w [%a3],%d1 #; store "nextCSA" pointer
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mov.aa %a4,%a3 #; %a4 = current CSA address
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lea %a3,[%a3]64 #; %a3 = %a3->nextCSA
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loop %a5,csa_loop #; repeat until done
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mov.d %d1,%a4 #; %d1 = current CSA address
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extr.u %d1,%d1,6,16 #; get CSA index
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or %d1,%d1,%d0 #; add segment number
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mtcr $fcx,%d1 #; initialize FCX
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isync
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ji %a11
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/*
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* handle clear table (i.e., fill BSS with zeros)
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*/
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.global __clear_table_func
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.type __clear_table_func,@function
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__clear_table_func:
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mov %d14,0 # %e14 = 0
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mov %d15,0
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movh.a %a13,hi:__clear_table # %a13 = &first table entry
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lea %a13,[%a13]lo:__clear_table
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__clear_table_next:
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ld.a %a15,[%a13+]4 # %a15 = current block base
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ld.w %d3,[%a13+]4 # %d3 = current block length
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jeq %d3,-1,__clear_table_done # length == -1 => end of table
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sh %d0,%d3,-3 # %d0 = length / 8 (doublewords)
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and %d1,%d3,7 # %d1 = length % 8 (rem. bytes)
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jz %d0,__clear_word # block size < 8 => clear word
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addi %d0,%d0,-1 # else doublewords -= 1
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mov.a %a2,%d0 # %a2 = loop counter
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__clear_dword:
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st.d [%a15+]8,%e14 # clear one doubleword
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loop %a2,__clear_dword
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__clear_word:
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jz %d1,__clear_table_next
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sh %d0,%d1,-2 # %d0 = length / 4 (words)
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and %d1,%d1,3 # %d1 = length % 4 (rem. bytes)
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jz %d0,__clear_hword # block size < 4 => clear hword
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st.w [%a15+]4,%d15 # clear one word
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__clear_hword:
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jz %d1,__clear_table_next
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sh %d0,%d1,-1 # %d0 = length / 2 (halfwords)
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and %d1,%d1,1 # %d1 = length % 2 (rem. bytes)
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jz %d0,__clear_byte # block size < 2 => clear byte
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st.h [%a15+]2,%d15 # clear one halfword
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__clear_byte:
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jz %d1,__clear_table_next
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st.b [%a15],%d15 # clear one byte
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j __clear_table_next # handle next clear table entry
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__clear_table_done:
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ji %a11
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/*
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* handle copy table (support for romable code)
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*/
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.global __copy_table_func
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.type __copy_table_func,@function
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__copy_table_func:
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movh.a %a13,hi:__copy_table # %a13 = &first table entry
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lea %a13,[%a13]lo:__copy_table
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__copy_table_next:
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ld.a %a15,[%a13+]4 # %a15 = src address
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ld.a %a14,[%a13+]4 # %a14 = dst address
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ld.w %d3,[%a13+]4 # %d3 = block length
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jeq %d3,-1,__copy_table_done # length == -1 => end of table
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sh %d0,%d3,-3 # %d0 = length / 8 (doublewords)
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and %d1,%d3,7 # %d1 = lenght % 8 (rem. bytes)
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jz %d0,__copy_word # block size < 8 => copy word
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addi %d0,%d0,-1 # else doublewords -= 1
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mov.a %a2,%d0 # %a2 = loop counter
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__copy_dword:
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ld.d %e14,[%a15+]8 # copy one doubleword
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st.d [%a14+]8,%e14
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loop %a2,__copy_dword
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__copy_word:
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jz %d1,__copy_table_next
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sh %d0,%d1,-2 # %d0 = length / 4 (words)
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and %d1,%d1,3 # %d1 = lenght % 4 (rem. bytes)
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jz %d0,__copy_hword # block size < 4 => copy hword
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ld.w %d14,[%a15+]4 # copy one word
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st.w [%a14+]4,%d14
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__copy_hword:
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jz %d1,__copy_table_next
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sh %d0,%d1,-1 # %d0 = length / 2 (halfwords)
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and %d1,%d1,1 # %d1 = length % 2 (rem. bytes)
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jz %d0,__copy_byte # block size < 2 => copy byte
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ld.h %d14,[%a15+]2 # copy one halfword
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st.h [%a14+]2,%d14
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__copy_byte:
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jz %d1,__copy_table_next
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ld.b %d14,[%a15]0 # copy one byte
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st.b [%a14],%d14
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j __copy_table_next # handle next copy table entry
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__copy_table_done:
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ji %a11
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_exit:
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movh.a %a15, hi:__TESTDEVICE
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lea %a15,[%a15]lo:__TESTDEVICE
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mov.d %d2, %a14
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st.w [%a15], %d2 # write exit code to testdevice
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debug
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/*============================================================================*
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* Exception handlers (exceptions in startup code)
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*
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* This is a minimal trap vector table, which consists of eight
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* entries, each consisting of eight words (32 bytes).
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*============================================================================*/
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#; .section .traptab, "ax", @progbits
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.macro trapentry from=0, to=7
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mov.u %d14, \from << 8
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add %d14,%d14,%d15
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mov.a %a14,%d14
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addih.a %a14,%a14,0 # if we trap, we fail
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j _exit
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0:
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j 0b
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nop
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rfe
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.align 5
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.if \to-\from
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trapentry "(\from+1)",\to
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.endif
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.endm
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.align 8
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.global first_trap_table
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first_trap_table:
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trapentry 0, 7
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@ -0,0 +1,13 @@
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/*
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* Copyright (C) 2023 Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
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*
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* This code is licensed under the GPL version 2 or later. See the
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* COPYING file in the top-level directory.
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*/
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#include "testdev_assert.h"
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int main(int argc, char **argv)
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{
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testdev_assert(1);
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return 0;
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}
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@ -0,0 +1,18 @@
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/*
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* Copyright (C) 2023 Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
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*
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* This code is licensed under the GPL version 2 or later. See the
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* COPYING file in the top-level directory.
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*/
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int *testdev = (int *)0xf0000000;
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#define FAIL 1
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static inline void testdev_assert(int condition)
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{
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if (!condition) {
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*testdev = FAIL;
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asm("debug");
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}
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}
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@ -12,6 +12,7 @@ MEMORY
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/*
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* Define the sizes of the user and system stacks.
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*/
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__ISTACK_SIZE = DEFINED (__ISTACK_SIZE) ? __ISTACK_SIZE : 256 ;
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__USTACK_SIZE = DEFINED (__USTACK_SIZE) ? __USTACK_SIZE : 1K ;
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/*
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* Define the start address and the size of the context save area.
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@ -20,6 +21,8 @@ __CSA_BEGIN = 0xd0000000 ;
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__CSA_SIZE = 8k ;
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__CSA_END = __CSA_BEGIN + __CSA_SIZE ;
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__TESTDEVICE = 0xf0000000 ;
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SECTIONS
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{
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.text :
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@ -32,6 +35,18 @@ SECTIONS
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{
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*(.rodata)
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*(.rodata1)
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/*
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* Create the clear and copy tables that tell the startup code
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* which memory areas to clear and to copy, respectively.
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*/
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. = ALIGN(4) ;
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PROVIDE(__clear_table = .) ;
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LONG(0 + ADDR(.bss)); LONG(SIZEOF(.bss));
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LONG(-1); LONG(-1);
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PROVIDE(__copy_table = .) ;
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LONG(LOADADDR(.data)); LONG(0 + ADDR(.data)); LONG(SIZEOF(.data));
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LONG(-1); LONG(-1); LONG(-1);
|
||||
. = ALIGN(8);
|
||||
} > data_ram
|
||||
|
||||
.data :
|
||||
|
|
@ -40,6 +55,7 @@ SECTIONS
|
|||
*(.data)
|
||||
*(.data.*)
|
||||
. = ALIGN(8) ;
|
||||
__ISTACK = . + __ISTACK_SIZE ;
|
||||
__USTACK = . + __USTACK_SIZE -768;
|
||||
|
||||
} > data_ram
|
||||
|
|
|
|||
Loading…
Reference in New Issue