mirror of
https://github.com/frida/tinycc
synced 2024-11-24 16:49:44 +03:00
569255e6c4
since configure supports only native configuration
a file 'cross-tcc.mak' needs to be created manually.
It is included in the Makefile if present.
# ----------------------------------------------------
# Example config-cross.mak:
#
# windows -> i386-linux cross-compiler
# (it expects the linux files in <prefix>/i386-linux)
ROOT-i386 = {B}/i386-linux
CRT-i386 = $(ROOT-i386)/usr/lib
LIB-i386 = $(ROOT-i386)/lib:$(ROOT-i386)/usr/lib
INC-i386 = {B}/lib/include:$(ROOT-i386)/usr/include
DEF-i386 += -D__linux__
# ----------------------------------------------------
Also:
- use libtcc1-<target>.a instead of directories
- add dummy arm assembler
- remove include dependencies from armeabi.c/lib-arm64.c
- tccelf/ld_add_file: add SYSROOT (when defined) to absolute
filenames coming from ld-scripts
719 lines
15 KiB
C
719 lines
15 KiB
C
/* TCC runtime library.
|
|
Parts of this code are (c) 2002 Fabrice Bellard
|
|
|
|
Copyright (C) 1987, 1988, 1992, 1994, 1995 Free Software Foundation, Inc.
|
|
|
|
This file is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option) any
|
|
later version.
|
|
|
|
In addition to the permissions in the GNU General Public License, the
|
|
Free Software Foundation gives you unlimited permission to link the
|
|
compiled version of this file into combinations with other programs,
|
|
and to distribute those combinations without any restriction coming
|
|
from the use of this file. (The General Public License restrictions
|
|
do apply in other respects; for example, they cover modification of
|
|
the file, and distribution when not linked into a combine
|
|
executable.)
|
|
|
|
This file is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#define W_TYPE_SIZE 32
|
|
#define BITS_PER_UNIT 8
|
|
|
|
typedef int Wtype;
|
|
typedef unsigned int UWtype;
|
|
typedef unsigned int USItype;
|
|
typedef long long DWtype;
|
|
typedef unsigned long long UDWtype;
|
|
|
|
struct DWstruct {
|
|
Wtype low, high;
|
|
};
|
|
|
|
typedef union
|
|
{
|
|
struct DWstruct s;
|
|
DWtype ll;
|
|
} DWunion;
|
|
|
|
typedef long double XFtype;
|
|
#define WORD_SIZE (sizeof (Wtype) * BITS_PER_UNIT)
|
|
#define HIGH_WORD_COEFF (((UDWtype) 1) << WORD_SIZE)
|
|
|
|
/* the following deal with IEEE single-precision numbers */
|
|
#define EXCESS 126
|
|
#define SIGNBIT 0x80000000
|
|
#define HIDDEN (1 << 23)
|
|
#define SIGN(fp) ((fp) & SIGNBIT)
|
|
#define EXP(fp) (((fp) >> 23) & 0xFF)
|
|
#define MANT(fp) (((fp) & 0x7FFFFF) | HIDDEN)
|
|
#define PACK(s,e,m) ((s) | ((e) << 23) | (m))
|
|
|
|
/* the following deal with IEEE double-precision numbers */
|
|
#define EXCESSD 1022
|
|
#define HIDDEND (1 << 20)
|
|
#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF)
|
|
#define SIGND(fp) ((fp.l.upper) & SIGNBIT)
|
|
#define MANTD(fp) (((((fp.l.upper) & 0xFFFFF) | HIDDEND) << 10) | \
|
|
(fp.l.lower >> 22))
|
|
#define HIDDEND_LL ((long long)1 << 52)
|
|
#define MANTD_LL(fp) ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL)
|
|
#define PACKD_LL(s,e,m) (((long long)((s)+((e)<<20))<<32)|(m))
|
|
|
|
/* the following deal with x86 long double-precision numbers */
|
|
#define EXCESSLD 16382
|
|
#define EXPLD(fp) (fp.l.upper & 0x7fff)
|
|
#define SIGNLD(fp) ((fp.l.upper) & 0x8000)
|
|
|
|
/* only for x86 */
|
|
union ldouble_long {
|
|
long double ld;
|
|
struct {
|
|
unsigned long long lower;
|
|
unsigned short upper;
|
|
} l;
|
|
};
|
|
|
|
union double_long {
|
|
double d;
|
|
#if 1
|
|
struct {
|
|
unsigned int lower;
|
|
int upper;
|
|
} l;
|
|
#else
|
|
struct {
|
|
int upper;
|
|
unsigned int lower;
|
|
} l;
|
|
#endif
|
|
long long ll;
|
|
};
|
|
|
|
union float_long {
|
|
float f;
|
|
unsigned int l;
|
|
};
|
|
|
|
/* XXX: we don't support several builtin supports for now */
|
|
#if !defined(TCC_TARGET_X86_64) && !defined(TCC_TARGET_ARM)
|
|
|
|
/* XXX: use gcc/tcc intrinsic ? */
|
|
#if defined(TCC_TARGET_I386)
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
__asm__ ("subl %5,%1\n\tsbbl %3,%0" \
|
|
: "=r" ((USItype) (sh)), \
|
|
"=&r" ((USItype) (sl)) \
|
|
: "0" ((USItype) (ah)), \
|
|
"g" ((USItype) (bh)), \
|
|
"1" ((USItype) (al)), \
|
|
"g" ((USItype) (bl)))
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
__asm__ ("mull %3" \
|
|
: "=a" ((USItype) (w0)), \
|
|
"=d" ((USItype) (w1)) \
|
|
: "%0" ((USItype) (u)), \
|
|
"rm" ((USItype) (v)))
|
|
#define udiv_qrnnd(q, r, n1, n0, dv) \
|
|
__asm__ ("divl %4" \
|
|
: "=a" ((USItype) (q)), \
|
|
"=d" ((USItype) (r)) \
|
|
: "0" ((USItype) (n0)), \
|
|
"1" ((USItype) (n1)), \
|
|
"rm" ((USItype) (dv)))
|
|
#define count_leading_zeros(count, x) \
|
|
do { \
|
|
USItype __cbtmp; \
|
|
__asm__ ("bsrl %1,%0" \
|
|
: "=r" (__cbtmp) : "rm" ((USItype) (x))); \
|
|
(count) = __cbtmp ^ 31; \
|
|
} while (0)
|
|
#else
|
|
#error unsupported CPU type
|
|
#endif
|
|
|
|
/* most of this code is taken from libgcc2.c from gcc */
|
|
|
|
static UDWtype __udivmoddi4 (UDWtype n, UDWtype d, UDWtype *rp)
|
|
{
|
|
DWunion ww;
|
|
DWunion nn, dd;
|
|
DWunion rr;
|
|
UWtype d0, d1, n0, n1, n2;
|
|
UWtype q0, q1;
|
|
UWtype b, bm;
|
|
|
|
nn.ll = n;
|
|
dd.ll = d;
|
|
|
|
d0 = dd.s.low;
|
|
d1 = dd.s.high;
|
|
n0 = nn.s.low;
|
|
n1 = nn.s.high;
|
|
|
|
#if !defined(UDIV_NEEDS_NORMALIZATION)
|
|
if (d1 == 0)
|
|
{
|
|
if (d0 > n1)
|
|
{
|
|
/* 0q = nn / 0D */
|
|
|
|
udiv_qrnnd (q0, n0, n1, n0, d0);
|
|
q1 = 0;
|
|
|
|
/* Remainder in n0. */
|
|
}
|
|
else
|
|
{
|
|
/* qq = NN / 0d */
|
|
|
|
if (d0 == 0)
|
|
d0 = 1 / d0; /* Divide intentionally by zero. */
|
|
|
|
udiv_qrnnd (q1, n1, 0, n1, d0);
|
|
udiv_qrnnd (q0, n0, n1, n0, d0);
|
|
|
|
/* Remainder in n0. */
|
|
}
|
|
|
|
if (rp != 0)
|
|
{
|
|
rr.s.low = n0;
|
|
rr.s.high = 0;
|
|
*rp = rr.ll;
|
|
}
|
|
}
|
|
|
|
#else /* UDIV_NEEDS_NORMALIZATION */
|
|
|
|
if (d1 == 0)
|
|
{
|
|
if (d0 > n1)
|
|
{
|
|
/* 0q = nn / 0D */
|
|
|
|
count_leading_zeros (bm, d0);
|
|
|
|
if (bm != 0)
|
|
{
|
|
/* Normalize, i.e. make the most significant bit of the
|
|
denominator set. */
|
|
|
|
d0 = d0 << bm;
|
|
n1 = (n1 << bm) | (n0 >> (W_TYPE_SIZE - bm));
|
|
n0 = n0 << bm;
|
|
}
|
|
|
|
udiv_qrnnd (q0, n0, n1, n0, d0);
|
|
q1 = 0;
|
|
|
|
/* Remainder in n0 >> bm. */
|
|
}
|
|
else
|
|
{
|
|
/* qq = NN / 0d */
|
|
|
|
if (d0 == 0)
|
|
d0 = 1 / d0; /* Divide intentionally by zero. */
|
|
|
|
count_leading_zeros (bm, d0);
|
|
|
|
if (bm == 0)
|
|
{
|
|
/* From (n1 >= d0) /\ (the most significant bit of d0 is set),
|
|
conclude (the most significant bit of n1 is set) /\ (the
|
|
leading quotient digit q1 = 1).
|
|
|
|
This special case is necessary, not an optimization.
|
|
(Shifts counts of W_TYPE_SIZE are undefined.) */
|
|
|
|
n1 -= d0;
|
|
q1 = 1;
|
|
}
|
|
else
|
|
{
|
|
/* Normalize. */
|
|
|
|
b = W_TYPE_SIZE - bm;
|
|
|
|
d0 = d0 << bm;
|
|
n2 = n1 >> b;
|
|
n1 = (n1 << bm) | (n0 >> b);
|
|
n0 = n0 << bm;
|
|
|
|
udiv_qrnnd (q1, n1, n2, n1, d0);
|
|
}
|
|
|
|
/* n1 != d0... */
|
|
|
|
udiv_qrnnd (q0, n0, n1, n0, d0);
|
|
|
|
/* Remainder in n0 >> bm. */
|
|
}
|
|
|
|
if (rp != 0)
|
|
{
|
|
rr.s.low = n0 >> bm;
|
|
rr.s.high = 0;
|
|
*rp = rr.ll;
|
|
}
|
|
}
|
|
#endif /* UDIV_NEEDS_NORMALIZATION */
|
|
|
|
else
|
|
{
|
|
if (d1 > n1)
|
|
{
|
|
/* 00 = nn / DD */
|
|
|
|
q0 = 0;
|
|
q1 = 0;
|
|
|
|
/* Remainder in n1n0. */
|
|
if (rp != 0)
|
|
{
|
|
rr.s.low = n0;
|
|
rr.s.high = n1;
|
|
*rp = rr.ll;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* 0q = NN / dd */
|
|
|
|
count_leading_zeros (bm, d1);
|
|
if (bm == 0)
|
|
{
|
|
/* From (n1 >= d1) /\ (the most significant bit of d1 is set),
|
|
conclude (the most significant bit of n1 is set) /\ (the
|
|
quotient digit q0 = 0 or 1).
|
|
|
|
This special case is necessary, not an optimization. */
|
|
|
|
/* The condition on the next line takes advantage of that
|
|
n1 >= d1 (true due to program flow). */
|
|
if (n1 > d1 || n0 >= d0)
|
|
{
|
|
q0 = 1;
|
|
sub_ddmmss (n1, n0, n1, n0, d1, d0);
|
|
}
|
|
else
|
|
q0 = 0;
|
|
|
|
q1 = 0;
|
|
|
|
if (rp != 0)
|
|
{
|
|
rr.s.low = n0;
|
|
rr.s.high = n1;
|
|
*rp = rr.ll;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
UWtype m1, m0;
|
|
/* Normalize. */
|
|
|
|
b = W_TYPE_SIZE - bm;
|
|
|
|
d1 = (d1 << bm) | (d0 >> b);
|
|
d0 = d0 << bm;
|
|
n2 = n1 >> b;
|
|
n1 = (n1 << bm) | (n0 >> b);
|
|
n0 = n0 << bm;
|
|
|
|
udiv_qrnnd (q0, n1, n2, n1, d1);
|
|
umul_ppmm (m1, m0, q0, d0);
|
|
|
|
if (m1 > n1 || (m1 == n1 && m0 > n0))
|
|
{
|
|
q0--;
|
|
sub_ddmmss (m1, m0, m1, m0, d1, d0);
|
|
}
|
|
|
|
q1 = 0;
|
|
|
|
/* Remainder in (n1n0 - m1m0) >> bm. */
|
|
if (rp != 0)
|
|
{
|
|
sub_ddmmss (n1, n0, n1, n0, m1, m0);
|
|
rr.s.low = (n1 << b) | (n0 >> bm);
|
|
rr.s.high = n1 >> bm;
|
|
*rp = rr.ll;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ww.s.low = q0;
|
|
ww.s.high = q1;
|
|
return ww.ll;
|
|
}
|
|
|
|
#define __negdi2(a) (-(a))
|
|
|
|
long long __divdi3(long long u, long long v)
|
|
{
|
|
int c = 0;
|
|
DWunion uu, vv;
|
|
DWtype w;
|
|
|
|
uu.ll = u;
|
|
vv.ll = v;
|
|
|
|
if (uu.s.high < 0) {
|
|
c = ~c;
|
|
uu.ll = __negdi2 (uu.ll);
|
|
}
|
|
if (vv.s.high < 0) {
|
|
c = ~c;
|
|
vv.ll = __negdi2 (vv.ll);
|
|
}
|
|
w = __udivmoddi4 (uu.ll, vv.ll, (UDWtype *) 0);
|
|
if (c)
|
|
w = __negdi2 (w);
|
|
return w;
|
|
}
|
|
|
|
long long __moddi3(long long u, long long v)
|
|
{
|
|
int c = 0;
|
|
DWunion uu, vv;
|
|
DWtype w;
|
|
|
|
uu.ll = u;
|
|
vv.ll = v;
|
|
|
|
if (uu.s.high < 0) {
|
|
c = ~c;
|
|
uu.ll = __negdi2 (uu.ll);
|
|
}
|
|
if (vv.s.high < 0)
|
|
vv.ll = __negdi2 (vv.ll);
|
|
|
|
__udivmoddi4 (uu.ll, vv.ll, (UDWtype *) &w);
|
|
if (c)
|
|
w = __negdi2 (w);
|
|
return w;
|
|
}
|
|
|
|
unsigned long long __udivdi3(unsigned long long u, unsigned long long v)
|
|
{
|
|
return __udivmoddi4 (u, v, (UDWtype *) 0);
|
|
}
|
|
|
|
unsigned long long __umoddi3(unsigned long long u, unsigned long long v)
|
|
{
|
|
UDWtype w;
|
|
|
|
__udivmoddi4 (u, v, &w);
|
|
return w;
|
|
}
|
|
|
|
/* XXX: fix tcc's code generator to do this instead */
|
|
long long __ashrdi3(long long a, int b)
|
|
{
|
|
#ifdef __TINYC__
|
|
DWunion u;
|
|
u.ll = a;
|
|
if (b >= 32) {
|
|
u.s.low = u.s.high >> (b - 32);
|
|
u.s.high = u.s.high >> 31;
|
|
} else if (b != 0) {
|
|
u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b));
|
|
u.s.high = u.s.high >> b;
|
|
}
|
|
return u.ll;
|
|
#else
|
|
return a >> b;
|
|
#endif
|
|
}
|
|
|
|
/* XXX: fix tcc's code generator to do this instead */
|
|
unsigned long long __lshrdi3(unsigned long long a, int b)
|
|
{
|
|
#ifdef __TINYC__
|
|
DWunion u;
|
|
u.ll = a;
|
|
if (b >= 32) {
|
|
u.s.low = (unsigned)u.s.high >> (b - 32);
|
|
u.s.high = 0;
|
|
} else if (b != 0) {
|
|
u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b));
|
|
u.s.high = (unsigned)u.s.high >> b;
|
|
}
|
|
return u.ll;
|
|
#else
|
|
return a >> b;
|
|
#endif
|
|
}
|
|
|
|
/* XXX: fix tcc's code generator to do this instead */
|
|
long long __ashldi3(long long a, int b)
|
|
{
|
|
#ifdef __TINYC__
|
|
DWunion u;
|
|
u.ll = a;
|
|
if (b >= 32) {
|
|
u.s.high = (unsigned)u.s.low << (b - 32);
|
|
u.s.low = 0;
|
|
} else if (b != 0) {
|
|
u.s.high = ((unsigned)u.s.high << b) | ((unsigned)u.s.low >> (32 - b));
|
|
u.s.low = (unsigned)u.s.low << b;
|
|
}
|
|
return u.ll;
|
|
#else
|
|
return a << b;
|
|
#endif
|
|
}
|
|
|
|
#endif /* !__x86_64__ */
|
|
|
|
/* XXX: fix tcc's code generator to do this instead */
|
|
float __floatundisf(unsigned long long a)
|
|
{
|
|
DWunion uu;
|
|
XFtype r;
|
|
|
|
uu.ll = a;
|
|
if (uu.s.high >= 0) {
|
|
return (float)uu.ll;
|
|
} else {
|
|
r = (XFtype)uu.ll;
|
|
r += 18446744073709551616.0;
|
|
return (float)r;
|
|
}
|
|
}
|
|
|
|
double __floatundidf(unsigned long long a)
|
|
{
|
|
DWunion uu;
|
|
XFtype r;
|
|
|
|
uu.ll = a;
|
|
if (uu.s.high >= 0) {
|
|
return (double)uu.ll;
|
|
} else {
|
|
r = (XFtype)uu.ll;
|
|
r += 18446744073709551616.0;
|
|
return (double)r;
|
|
}
|
|
}
|
|
|
|
long double __floatundixf(unsigned long long a)
|
|
{
|
|
DWunion uu;
|
|
XFtype r;
|
|
|
|
uu.ll = a;
|
|
if (uu.s.high >= 0) {
|
|
return (long double)uu.ll;
|
|
} else {
|
|
r = (XFtype)uu.ll;
|
|
r += 18446744073709551616.0;
|
|
return (long double)r;
|
|
}
|
|
}
|
|
|
|
unsigned long long __fixunssfdi (float a1)
|
|
{
|
|
register union float_long fl1;
|
|
register int exp;
|
|
register unsigned long l;
|
|
|
|
fl1.f = a1;
|
|
|
|
if (fl1.l == 0)
|
|
return (0);
|
|
|
|
exp = EXP (fl1.l) - EXCESS - 24;
|
|
|
|
l = MANT(fl1.l);
|
|
if (exp >= 41)
|
|
return (unsigned long long)-1;
|
|
else if (exp >= 0)
|
|
return (unsigned long long)l << exp;
|
|
else if (exp >= -23)
|
|
return l >> -exp;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
unsigned long long __fixunsdfdi (double a1)
|
|
{
|
|
register union double_long dl1;
|
|
register int exp;
|
|
register unsigned long long l;
|
|
|
|
dl1.d = a1;
|
|
|
|
if (dl1.ll == 0)
|
|
return (0);
|
|
|
|
exp = EXPD (dl1) - EXCESSD - 53;
|
|
|
|
l = MANTD_LL(dl1);
|
|
|
|
if (exp >= 12)
|
|
return (unsigned long long)-1;
|
|
else if (exp >= 0)
|
|
return l << exp;
|
|
else if (exp >= -52)
|
|
return l >> -exp;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
unsigned long long __fixunsxfdi (long double a1)
|
|
{
|
|
register union ldouble_long dl1;
|
|
register int exp;
|
|
register unsigned long long l;
|
|
|
|
dl1.ld = a1;
|
|
|
|
if (dl1.l.lower == 0 && dl1.l.upper == 0)
|
|
return (0);
|
|
|
|
exp = EXPLD (dl1) - EXCESSLD - 64;
|
|
|
|
l = dl1.l.lower;
|
|
|
|
if (exp > 0)
|
|
return (unsigned long long)-1;
|
|
else if (exp >= -63)
|
|
return l >> -exp;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
long long __fixsfdi (float a1)
|
|
{
|
|
long long ret; int s;
|
|
ret = __fixunssfdi((s = a1 >= 0) ? a1 : -a1);
|
|
return s ? ret : -ret;
|
|
}
|
|
|
|
long long __fixdfdi (double a1)
|
|
{
|
|
long long ret; int s;
|
|
ret = __fixunsdfdi((s = a1 >= 0) ? a1 : -a1);
|
|
return s ? ret : -ret;
|
|
}
|
|
|
|
long long __fixxfdi (long double a1)
|
|
{
|
|
long long ret; int s;
|
|
ret = __fixunsxfdi((s = a1 >= 0) ? a1 : -a1);
|
|
return s ? ret : -ret;
|
|
}
|
|
|
|
#if defined(TCC_TARGET_X86_64) && !defined(_WIN64)
|
|
|
|
#ifndef __TINYC__
|
|
# include <stdlib.h>
|
|
# include <stdio.h>
|
|
# include <string.h>
|
|
# undef __va_start
|
|
# undef __va_arg
|
|
# undef __va_copy
|
|
# undef __va_end
|
|
#else
|
|
/* Avoid include files, they may not be available when cross compiling */
|
|
extern void *memset(void *s, int c, __SIZE_TYPE__ n);
|
|
extern void abort(void);
|
|
#endif
|
|
|
|
/* This should be in sync with our include/stdarg.h */
|
|
enum __va_arg_type {
|
|
__va_gen_reg, __va_float_reg, __va_stack
|
|
};
|
|
|
|
/* GCC compatible definition of va_list. */
|
|
typedef struct {
|
|
unsigned int gp_offset;
|
|
unsigned int fp_offset;
|
|
union {
|
|
unsigned int overflow_offset;
|
|
char *overflow_arg_area;
|
|
};
|
|
char *reg_save_area;
|
|
} __va_list_struct;
|
|
|
|
void __va_start(__va_list_struct *ap, void *fp)
|
|
{
|
|
memset(ap, 0, sizeof(__va_list_struct));
|
|
*ap = *(__va_list_struct *)((char *)fp - 16);
|
|
ap->overflow_arg_area = (char *)fp + ap->overflow_offset;
|
|
ap->reg_save_area = (char *)fp - 176 - 16;
|
|
}
|
|
|
|
void *__va_arg(__va_list_struct *ap,
|
|
enum __va_arg_type arg_type,
|
|
int size, int align)
|
|
{
|
|
size = (size + 7) & ~7;
|
|
align = (align + 7) & ~7;
|
|
switch (arg_type) {
|
|
case __va_gen_reg:
|
|
if (ap->gp_offset + size <= 48) {
|
|
ap->gp_offset += size;
|
|
return ap->reg_save_area + ap->gp_offset - size;
|
|
}
|
|
goto use_overflow_area;
|
|
|
|
case __va_float_reg:
|
|
if (ap->fp_offset < 128 + 48) {
|
|
ap->fp_offset += 16;
|
|
return ap->reg_save_area + ap->fp_offset - 16;
|
|
}
|
|
size = 8;
|
|
goto use_overflow_area;
|
|
|
|
case __va_stack:
|
|
use_overflow_area:
|
|
ap->overflow_arg_area += size;
|
|
ap->overflow_arg_area = (char*)((long long)(ap->overflow_arg_area + align - 1) & -align);
|
|
return ap->overflow_arg_area - size;
|
|
|
|
default: /* should never happen */
|
|
abort();
|
|
}
|
|
}
|
|
#endif /* __x86_64__ */
|
|
|
|
#if defined TCC_TARGET_ARM && !defined __TINYC__
|
|
#define _GNU_SOURCE
|
|
#include <unistd.h>
|
|
#include <sys/syscall.h>
|
|
#include <stdio.h>
|
|
|
|
/* Flushing for tccrun */
|
|
void __clear_cache(void *beginning, void *end)
|
|
{
|
|
/* __ARM_NR_cacheflush is kernel private and should not be used in user space.
|
|
* However, there is no ARM asm parser in tcc so we use it for now */
|
|
#if 1
|
|
syscall(__ARM_NR_cacheflush, beginning, end, 0);
|
|
#else
|
|
__asm__ ("push {r7}\n\t"
|
|
"mov r7, #0xf0002\n\t"
|
|
"mov r2, #0\n\t"
|
|
"swi 0\n\t"
|
|
"pop {r7}\n\t"
|
|
"ret");
|
|
#endif
|
|
}
|
|
#endif /* arm */
|