diff options
Diffstat (limited to 'i386-gen.c')
| -rw-r--r-- | i386-gen.c | 78 |
1 files changed, 44 insertions, 34 deletions
@@ -18,8 +18,11 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#ifdef TARGET_DEFS_ONLY + /* number of available registers */ -#define NB_REGS 4 +#define NB_REGS 4 +#define NB_ASM_REGS 8 /* a register can belong to several classes. The classes must be sorted from more general to more precise (see gv2() code which does @@ -42,13 +45,6 @@ enum { TREG_ST0, }; -const int reg_classes[NB_REGS] = { - /* eax */ RC_INT | RC_EAX, - /* ecx */ RC_INT | RC_ECX, - /* edx */ RC_INT | RC_EDX, - /* st0 */ RC_FLOAT | RC_ST0, -}; - /* return registers for function */ #define REG_IRET TREG_EAX /* single word int return register */ #define REG_LRET TREG_EDX /* second word return register (for long long) */ @@ -70,6 +66,9 @@ const int reg_classes[NB_REGS] = { /* maximum alignment (for aligned attribute support) */ #define MAX_ALIGN 8 + +#define psym oad + /******************************************************/ /* ELF defines */ @@ -85,6 +84,16 @@ const int reg_classes[NB_REGS] = { #define ELF_PAGE_SIZE 0x1000 /******************************************************/ +#else /* ! TARGET_DEFS_ONLY */ +/******************************************************/ +#include "tcc.h" + +ST_DATA const int reg_classes[NB_REGS] = { + /* eax */ RC_INT | RC_EAX, + /* ecx */ RC_INT | RC_ECX, + /* edx */ RC_INT | RC_EDX, + /* st0 */ RC_FLOAT | RC_ST0, +}; static unsigned long func_sub_sp_offset; static int func_ret_sub; @@ -93,7 +102,7 @@ static unsigned long func_bound_offset; #endif /* XXX: make it faster ? */ -void g(int c) +ST_FUNC void g(int c) { int ind1; ind1 = ind + 1; @@ -103,7 +112,7 @@ void g(int c) ind = ind1; } -void o(unsigned int c) +ST_FUNC void o(unsigned int c) { while (c) { g(c); @@ -111,13 +120,13 @@ void o(unsigned int c) } } -void gen_le16(int v) +ST_FUNC void gen_le16(int v) { g(v); g(v >> 8); } -void gen_le32(int c) +ST_FUNC void gen_le32(int c) { g(c); g(c >> 8); @@ -126,7 +135,7 @@ void gen_le32(int c) } /* output a symbol and patch all calls to it */ -void gsym_addr(int t, int a) +ST_FUNC void gsym_addr(int t, int a) { int n, *ptr; while (t) { @@ -137,7 +146,7 @@ void gsym_addr(int t, int a) } } -void gsym(int t) +ST_FUNC void gsym(int t) { gsym_addr(t, ind); } @@ -147,7 +156,7 @@ void gsym(int t) #define psym oad /* instruction + 4 bytes data. Return the address of the data */ -static int oad(int c, int s) +ST_FUNC int oad(int c, int s) { int ind1; @@ -162,14 +171,14 @@ static int oad(int c, int s) } /* output constant with relocation if 'r & VT_SYM' is true */ -static void gen_addr32(int r, Sym *sym, int c) +ST_FUNC void gen_addr32(int r, Sym *sym, int c) { if (r & VT_SYM) greloc(cur_text_section, sym, ind, R_386_32); gen_le32(c); } -static void gen_addrpc32(int r, Sym *sym, int c) +ST_FUNC void gen_addrpc32(int r, Sym *sym, int c) { if (r & VT_SYM) greloc(cur_text_section, sym, ind, R_386_PC32); @@ -200,7 +209,7 @@ static void gen_modrm(int op_reg, int r, Sym *sym, int c) } /* load 'r' from value 'sv' */ -void load(int r, SValue *sv) +ST_FUNC void load(int r, SValue *sv) { int v, t, ft, fc, fr; SValue v1; @@ -269,7 +278,7 @@ void load(int r, SValue *sv) } /* store register 'r' in lvalue 'v' */ -void store(int r, SValue *v) +ST_FUNC void store(int r, SValue *v) { int fr, bt, ft, fc; @@ -349,7 +358,7 @@ static uint8_t fastcallw_regs[2] = { TREG_ECX, TREG_EDX }; /* Generate function call. The function address is pushed first, then all the parameters in call order. This functions pops all the parameters and the function address. */ -void gfunc_call(int nb_args) +ST_FUNC void gfunc_call(int nb_args) { int size, align, r, args_size, i, func_call; Sym *func_sym; @@ -442,7 +451,7 @@ void gfunc_call(int nb_args) #endif /* generate function prolog of type 't' */ -void gfunc_prolog(CType *func_type) +ST_FUNC void gfunc_prolog(CType *func_type) { int addr, align, size, func_call, fastcall_nb_regs; int param_index, param_addr; @@ -524,7 +533,7 @@ void gfunc_prolog(CType *func_type) } /* generate function epilog */ -void gfunc_epilog(void) +ST_FUNC void gfunc_epilog(void) { int v, saved_ind; @@ -595,13 +604,13 @@ void gfunc_epilog(void) } /* generate a jump to a label */ -int gjmp(int t) +ST_FUNC int gjmp(int t) { return psym(0xe9, t); } /* generate a jump to a fixed address */ -void gjmp_addr(int a) +ST_FUNC void gjmp_addr(int a) { int r; r = a - ind - 2; @@ -614,7 +623,7 @@ void gjmp_addr(int a) } /* generate a test. set 'inv' to invert test. Stack entry is popped */ -int gtst(int inv, int t) +ST_FUNC int gtst(int inv, int t) { int v, *p; @@ -659,7 +668,7 @@ int gtst(int inv, int t) } /* generate an integer binary operation */ -void gen_opi(int op) +ST_FUNC void gen_opi(int op) { int r, fr, opc, c; @@ -793,7 +802,7 @@ void gen_opi(int op) /* generate a floating point operation 'v = t1 op t2' instruction. The two operands are guaranted to have the same floating point type */ /* XXX: need to use ST1 too */ -void gen_opf(int op) +ST_FUNC void gen_opf(int op) { int a, ft, fc, swapped, r; @@ -905,7 +914,7 @@ void gen_opf(int op) /* convert integers to fp 't' type. Must handle 'int', 'unsigned int' and 'long long' cases. */ -void gen_cvt_itof(int t) +ST_FUNC void gen_cvt_itof(int t) { save_reg(TREG_ST0); gv(RC_INT); @@ -935,7 +944,7 @@ void gen_cvt_itof(int t) /* convert fp to int 't' type */ /* XXX: handle long long case */ -void gen_cvt_ftoi(int t) +ST_FUNC void gen_cvt_ftoi(int t) { int r, r2, size; Sym *sym; @@ -986,14 +995,14 @@ void gen_cvt_ftoi(int t) } /* convert from one floating point type to another */ -void gen_cvt_ftof(int t) +ST_FUNC void gen_cvt_ftof(int t) { /* all we have to do on i386 is to put the float in a register */ gv(RC_FLOAT); } /* computed goto support */ -void ggoto(void) +ST_FUNC void ggoto(void) { gcall_or_jmp(1); vtop--; @@ -1003,7 +1012,7 @@ void ggoto(void) #ifdef CONFIG_TCC_BCHECK /* generate a bounded pointer addition */ -void gen_bounded_ptr_add(void) +ST_FUNC void gen_bounded_ptr_add(void) { Sym *sym; @@ -1026,7 +1035,7 @@ void gen_bounded_ptr_add(void) /* patch pointer addition in vtop so that pointer dereferencing is also tested */ -void gen_bounded_ptr_deref(void) +ST_FUNC void gen_bounded_ptr_deref(void) { int func; int size, align; @@ -1068,4 +1077,5 @@ void gen_bounded_ptr_deref(void) /* end of X86 code generator */ /*************************************************************/ - +#endif +/*************************************************************/ |