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Add support for runtime selection of float ABI

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This commit is contained in:
Thomas Preud'homme
2014-01-07 15:23:54 +08:00
parent 70a088af87
commit b6247d1f3c
7 changed files with 114 additions and 71 deletions
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25
libtcc.c
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@ -757,7 +757,7 @@ static int tcc_compile(TCCState *s1)
func_old_type.t = VT_FUNC;
func_old_type.ref = sym_push(SYM_FIELD, &int_type, FUNC_CDECL, FUNC_OLD);
#ifdef TCC_TARGET_ARM
arm_init_types();
arm_init(s1);
#endif
#if 0
@ -945,9 +945,12 @@ LIBTCCAPI TCCState *tcc_new(void)
tcc_define_symbol(s, "__ARMEL__", NULL);
#if defined(TCC_ARM_EABI)
tcc_define_symbol(s, "__ARM_EABI__", NULL);
#if defined(TCC_ARM_HARDFLOAT)
tcc_define_symbol(s, "__ARM_PCS_VFP", NULL);
#endif
#if defined(TCC_ARM_HARDFLOAT)
s->float_abi = ARM_HARD_FLOAT;
tcc_define_symbol(s, "__ARM_PCS_VFP", NULL);
#else
s->float_abi = ARM_SOFTFP_FLOAT;
#endif
#endif
@ -1628,6 +1631,7 @@ enum {
TCC_OPTION_b,
TCC_OPTION_g,
TCC_OPTION_c,
TCC_OPTION_float_abi,
TCC_OPTION_static,
TCC_OPTION_shared,
TCC_OPTION_soname,
@ -1680,6 +1684,9 @@ static const TCCOption tcc_options[] = {
#endif
{ "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
{ "c", TCC_OPTION_c, 0 },
#ifdef TCC_TARGET_ARM
{ "mfloat-abi", TCC_OPTION_float_abi, TCC_OPTION_HAS_ARG },
#endif
{ "static", TCC_OPTION_static, 0 },
{ "shared", TCC_OPTION_shared, 0 },
{ "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG },
@ -1817,6 +1824,18 @@ PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv)
case TCC_OPTION_c:
s->output_type = TCC_OUTPUT_OBJ;
break;
#ifdef TCC_TARGET_ARM
case TCC_OPTION_float_abi:
/* tcc doesn't support soft float yet */
if (!strcmp(optarg, "softfp")) {
s->float_abi = ARM_SOFTFP_FLOAT;
tcc_undefine_symbol(s, "__ARM_PCS_VFP");
} else if (!strcmp(optarg, "hard"))
s->float_abi = ARM_HARD_FLOAT;
else
tcc_error("unsupported float abi '%s'", optarg);
break;
#endif
case TCC_OPTION_static:
s->static_link = 1;
break;