void backend_init()
{
ph_init();
block_init();
type_init();
if (global.params.is64bit)
{
util_set64();
cod3_set64();
}
else
{
util_set32();
cod3_set32();
}
rtlsym_init(); // uses fregsaved, so must be after it's set inside cod3_set*
out_config_init();
}
void out_config_init(
int model, // 32: 32 bit code
// 64: 64 bit code
// Windows: set bit 0 to generate MS-COFF instead of OMF
bool exe, // true: exe file
// false: dll or shared library (generate PIC code)
bool trace, // add profiling code
bool nofloat, // do not pull in floating point code
bool verbose, // verbose compile
bool optimize, // optimize code
int symdebug, // add symbolic debug information
// 1: D
// 2: fake it with C symbolic debug info
bool alwaysframe, // always create standard function frame
bool stackstomp, // add stack stomping code
unsigned char avx, // use AVX instruction set (0, 1, 2)
bool betterC // implement "Better C"
)
{
#if MARS
//printf("out_config_init()\n");
if (!config.target_cpu)
{ config.target_cpu = TARGET_PentiumPro;
config.target_scheduler = config.target_cpu;
}
config.fulltypes = CVNONE;
config.fpxmmregs = FALSE;
config.inline8087 = 1;
config.memmodel = 0;
config.flags |= CFGuchar; // make sure TYchar is unsigned
tytab[TYchar] |= TYFLuns;
bool mscoff = model & 1;
model &= 32 | 64;
#if TARGET_WINDOS
if (model == 64)
{ config.exe = EX_WIN64;
config.fpxmmregs = TRUE;
config.avx = avx;
config.ehmethod = betterC ? EH_NONE : EH_DM;
// Not sure we really need these two lines, try removing them later
config.flags |= CFGnoebp;
config.flags |= CFGalwaysframe;
config.flags |= CFGromable; // put switch tables in code segment
config.objfmt = OBJ_MSCOFF;
}
else
{
config.exe = EX_WIN32;
config.ehmethod = betterC ? EH_NONE : EH_WIN32;
config.objfmt = mscoff ? OBJ_MSCOFF : OBJ_OMF;
}
if (exe)
config.wflags |= WFexe; // EXE file only optimizations
config.flags4 |= CFG4underscore;
#endif
#if TARGET_LINUX
if (model == 64)
{ config.exe = EX_LINUX64;
config.ehmethod = betterC ? EH_NONE : EH_DWARF;
config.fpxmmregs = TRUE;
config.avx = avx;
}
else
{
config.exe = EX_LINUX;
config.ehmethod = betterC ? EH_NONE : EH_DWARF;
if (!exe)
config.flags |= CFGromable; // put switch tables in code segment
}
config.flags |= CFGnoebp;
if (!exe)
{
config.flags3 |= CFG3pic;
config.flags |= CFGalwaysframe; // PIC needs a frame for TLS fixups
}
config.objfmt = OBJ_ELF;
#endif
#if TARGET_OSX
config.fpxmmregs = TRUE;
config.avx = avx;
if (model == 64)
{ config.exe = EX_OSX64;
config.fpxmmregs = TRUE;
config.ehmethod = betterC ? EH_NONE : EH_DWARF;
}
else
{
config.exe = EX_OSX;
config.ehmethod = betterC ? EH_NONE : EH_DWARF;
}
config.flags |= CFGnoebp;
if (!exe)
{
config.flags3 |= CFG3pic;
config.flags |= CFGalwaysframe; // PIC needs a frame for TLS fixups
}
config.flags |= CFGromable; // put switch tables in code segment
config.objfmt = OBJ_MACH;
#endif
#if TARGET_FREEBSD
if (model == 64)
{ config.exe = EX_FREEBSD64;
config.ehmethod = betterC ? EH_NONE : EH_DWARF;
config.fpxmmregs = TRUE;
config.avx = avx;
}
else
{
config.exe = EX_FREEBSD;
config.ehmethod = betterC ? EH_NONE : EH_DWARF;
if (!exe)
config.flags |= CFGromable; // put switch tables in code segment
}
config.flags |= CFGnoebp;
if (!exe)
{
config.flags3 |= CFG3pic;
config.flags |= CFGalwaysframe; // PIC needs a frame for TLS fixups
}
config.objfmt = OBJ_ELF;
#endif
#if TARGET_OPENBSD
if (model == 64)
{ config.exe = EX_OPENBSD64;
config.fpxmmregs = TRUE;
config.avx = avx;
}
else
{
config.exe = EX_OPENBSD;
if (!exe)
config.flags |= CFGromable; // put switch tables in code segment
}
config.flags |= CFGnoebp;
config.flags |= CFGalwaysframe;
if (!exe)
config.flags3 |= CFG3pic;
config.objfmt = OBJ_ELF;
config.ehmethod = betterC ? EH_NONE : EH_DM;
#endif
#if TARGET_SOLARIS
if (model == 64)
{ config.exe = EX_SOLARIS64;
config.fpxmmregs = TRUE;
config.avx = avx;
}
else
{
config.exe = EX_SOLARIS;
if (!exe)
config.flags |= CFGromable; // put switch tables in code segment
}
config.flags |= CFGnoebp;
config.flags |= CFGalwaysframe;
if (!exe)
config.flags3 |= CFG3pic;
config.objfmt = OBJ_ELF;
config.ehmethod = betterC ? EH_NONE : EH_DM;
#endif
config.flags2 |= CFG2nodeflib; // no default library
config.flags3 |= CFG3eseqds;
#if 0
if (env->getEEcontext()->EEcompile != 2)
config.flags4 |= CFG4allcomdat;
if (env->nochecks())
config.flags4 |= CFG4nochecks; // no runtime checking
#elif TARGET_OSX
#else
config.flags4 |= CFG4allcomdat;
#endif
if (trace)
config.flags |= CFGtrace; // turn on profiler
if (nofloat)
config.flags3 |= CFG3wkfloat;
configv.verbose = verbose;
if (optimize)
go_flag((char *)"-o");
if (symdebug)
{
#if SYMDEB_DWARF
configv.addlinenumbers = 1;
config.fulltypes = (symdebug == 1) ? CVDWARF_D : CVDWARF_C;
#endif
#if SYMDEB_CODEVIEW
if (config.objfmt == OBJ_MSCOFF)
{
configv.addlinenumbers = 1;
config.fulltypes = CV8;
if(symdebug > 1)
config.flags2 |= CFG2gms;
}
else
{
configv.addlinenumbers = 1;
config.fulltypes = CV4;
}
#endif
if (!optimize)
config.flags |= CFGalwaysframe;
}
else
{
configv.addlinenumbers = 0;
config.fulltypes = CVNONE;
//config.flags &= ~CFGalwaysframe;
}
if (alwaysframe)
config.flags |= CFGalwaysframe;
if (stackstomp)
config.flags2 |= CFG2stomp;
config.betterC = betterC;
ph_init();
block_init();
cod3_setdefault();
if (model == 64)
{
util_set64();
type_init();
cod3_set64();
}
else
{
util_set32();
type_init();
cod3_set32();
}
rtlsym_init(); // uses fregsaved, so must be after it's set inside cod3_set*
#endif
}