tinycc/riscv64-asm.c
herman ten brugge 0b8ee7364a Add bound checking to arm, arm64 and riscv64
Checked on:
- i386/x86_64 (linux/windows)
- arm/arm64 (rapberry pi)
- riscv64 (simulator)
Not tested for arm softfloat because raspberry pi does not support it.

Modifications:

Makefile:
  add arm-asm.c to arm64_FILES
  add riscv64-asm.c (new file) to riscv64_FILES

lib/Makefile:
  add fetch_and_add_arm.o(new file) to ARM_O
  add fetch_and_add_arm64.o(new file) to ARM64_O
  add fetch_and_add_riscv64.o(new file) to RISCV64_O
  add $(BCHECK_O) to OBJ-arm/OBJ-arm64/OBJ-riscv64

tcc.h:
  Enable CONFIG_TCC_BCHECK for arm32/arm64/riscv64
  Add arm-asm.c, riscv64-asm.c

tcctok.h:
  for arm use memmove4 instead of memcpy4
  for arm use memmove8 instead of memcpy8

tccgen.c:
  put_extern_sym2: for arm check memcpy/memmove/memset/memmove4/memmove8
                   only use alloca for i386/x86_64
  for arm use memmove4 instead of memcpy4
  for arm use memmove8 instead of memcpy8
  fix builtin_frame_address/builtin_return_address for arm/riscv64

tccrun.c:
  Add riscv64 support
  fix rt_getcontext/rt_get_caller_pc for arm

tccelf.c:
  tcc_load_dll: Print filename for bad architecture

libtcc.c:
  add arm-asm.c/riscv64-asm.c

tcc-doc.texi:
  Add arm, arm64, riscv64 support for bound checking

lib/bcheck.c:
  add __bound___aeabi_memcpy/__bound___aeabi_memmove
      __bound___aeabi_memmove4/__bound___aeabi_memmove8
      __bound___aeabi_memset for arm
  call fetch_and_add_arm/fetch_and_add_arm64/fetch_and_add_riscv64
  __bound_init: Fix type for start/end/ad
  __bound_malloc/__bound_memalign/__bound_realloc/__bound_calloc: Use size + 1

arm-gen.c:
  add bound checking code like i386/x86_64
  assign_regs: only malloc if nb_args != 0
  gen_opi/gen_opf: Fix reload problems

arm-link.c:
  relocate_plt: Fix address calculating

arm64-gen.c:
  add bound checking code like i386/x86_64
  load/store: remove VT_BOUNDED from sv->r
  arm64_hfa_aux/arm64_hfa_aux: Fix array code
  gfunc_prolog: only malloc if n != 0

arm64-link.c:
  code_reloc/gotplt_entry_type/relocate: add R_AARCH64_LDST64_ABS_LO12_NC
  relocate: Use addXXle instead of writeXXle

riscv64-gen.c:
  add bound checking code like i386/x86_64
  add NB_ASM_REGS/CONFIG_TCC_ASM

riscv64-link.c:
  relocate: Use addXXle instead of writeXXle

i386-gen.c/x86_64-gen.c
  gen_bounds_epilog: Fix code (unrelated)

tests/Makefile:
  add $(BTESTS) for arm/arm64/riscv64

tests/tests2/Makefile:
  Use 85 only on i386/x86_64 because of asm code
  Use 113 only on i386/x86_64 because of DLL code
  Add 112/114/115/116 for arm/arm64/riscv64
  Fix FILTER (failed on riscv64)

tests/boundtest.c:
  Only use alloca for i386/x86_64
2020-06-16 07:39:48 +02:00

95 lines
1.9 KiB
C

/*************************************************************/
/*
* RISCV64 dummy assembler for TCC
*
*/
#ifdef TARGET_DEFS_ONLY
#define CONFIG_TCC_ASM
#define NB_ASM_REGS 32
ST_FUNC void g(int c);
ST_FUNC void gen_le16(int c);
ST_FUNC void gen_le32(int c);
/*************************************************************/
#else
/*************************************************************/
#define USING_GLOBALS
#include "tcc.h"
static void asm_error(void)
{
tcc_error("RISCV64 asm not implemented.");
}
/* XXX: make it faster ? */
ST_FUNC void g(int c)
{
int ind1;
if (nocode_wanted)
return;
ind1 = ind + 1;
if (ind1 > cur_text_section->data_allocated)
section_realloc(cur_text_section, ind1);
cur_text_section->data[ind] = c;
ind = ind1;
}
ST_FUNC void gen_le16 (int i)
{
g(i);
g(i>>8);
}
ST_FUNC void gen_le32 (int i)
{
gen_le16(i);
gen_le16(i>>16);
}
ST_FUNC void gen_expr32(ExprValue *pe)
{
gen_le32(pe->v);
}
ST_FUNC void asm_opcode(TCCState *s1, int opcode)
{
asm_error();
}
ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier)
{
asm_error();
}
/* generate prolog and epilog code for asm statement */
ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands,
int nb_outputs, int is_output,
uint8_t *clobber_regs,
int out_reg)
{
}
ST_FUNC void asm_compute_constraints(ASMOperand *operands,
int nb_operands, int nb_outputs,
const uint8_t *clobber_regs,
int *pout_reg)
{
}
ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str)
{
asm_error();
}
ST_FUNC int asm_parse_regvar (int t)
{
asm_error();
return -1;
}
/*************************************************************/
#endif /* ndef TARGET_DEFS_ONLY */