libgcc2.c

来自「fsmlabs的real time linux的内核」· C语言 代码 · 共 8,950 行 · 第 1/4 页

# 1 "/sys/gcc-2.95.2/gcc/libgcc2.c"
 
 
 


















 






 



# 1 "/sys/gcc-2.95.2/gcc/tconfig.h" 1

# 1 "/sys/gcc-2.95.2/gcc/gansidecl.h" 1
 



















 






# 1 "../include/ansidecl.h" 1
 

















 








































































 

 



 




















 









# 161 "../include/ansidecl.h"



# 28 "/sys/gcc-2.95.2/gcc/gansidecl.h" 2


 

 




 
















































# 2 "/sys/gcc-2.95.2/gcc/tconfig.h" 2



# 1 "config/xm-siglist.h" 1
 





# 5 "/sys/gcc-2.95.2/gcc/tconfig.h" 2



# 1 "config/mips/xm-mips.h" 1
 




















 



 










 




 





 

# 1 "tm.h" 1





# 1 "config/mips/elf.h" 1
 




















 


 





 
# 1 "config/gofast.h" 1
 



















 


 






















# 96 "config/gofast.h"
 
# 32 "config/mips/elf.h" 2

# 1 "config/mips/ecoff.h" 1
 




















 


# 1 "config/mips/mips.h" 1
 
























 

extern char    *asm_file_name;
extern char	call_used_regs[];
extern int	current_function_calls_alloca;
extern char    *language_string;
extern int	may_call_alloca;
extern char   **save_argv;
extern int	target_flags;
extern char    *version_string;

 

 
enum cmp_type {
  CMP_SI,				 
  CMP_DI,				 
  CMP_SF,				 
  CMP_DF,				 
  CMP_MAX				 
};

 
enum delay_type {
  DELAY_NONE,				 
  DELAY_LOAD,				 
  DELAY_HILO,				 
  DELAY_FCMP				 
};

 




enum processor_type {
  PROCESSOR_DEFAULT,
  PROCESSOR_R3000,
  PROCESSOR_R3900,
  PROCESSOR_R6000,
  PROCESSOR_R4000,
  PROCESSOR_R4100,
  PROCESSOR_R4300,
  PROCESSOR_R4600,
  PROCESSOR_R4650,
  PROCESSOR_R5000,
  PROCESSOR_R8000
};

 


 












 






 

enum mips_abicalls_type {
  MIPS_ABICALLS_NO,
  MIPS_ABICALLS_YES
};

 


 


enum block_move_type {
  BLOCK_MOVE_NORMAL,			 
  BLOCK_MOVE_NOT_LAST,			 
  BLOCK_MOVE_LAST			 
};

extern char mips_reg_names[][8];	 
extern char mips_print_operand_punct[];	 
extern const char *current_function_file;  
extern int num_source_filenames;	 
extern int inside_function;		 
extern int ignore_line_number;		 
extern int file_in_function_warning;	 
extern int sdb_label_count;		 
extern int sdb_begin_function_line;      
extern int mips_section_threshold;	 
extern int g_switch_value;		 
extern int g_switch_set;		 
extern int sym_lineno;			 
extern int set_noreorder;		 
extern int set_nomacro;			 
extern int set_noat;			 
extern int set_volatile;		 
extern int mips_branch_likely;		 
extern int mips_dbx_regno[];		 
extern struct rtx_def *branch_cmp[2];	 
extern enum cmp_type branch_type;	 
extern enum processor_type mips_cpu;	 
extern enum mips_abicalls_type mips_abicalls; 
extern int mips_isa;			 
extern int mips16;			 
extern int mips16_hard_float;		 
extern int mips_entry;			 
extern const char *mips_cpu_string;	 
extern const char *mips_isa_string;	 
extern const char *mips_abi_string;	 
extern const char *mips_entry_string;	 
extern const char *mips_no_mips16_string; 
extern const char *mips_explicit_type_size_string; 
extern int mips_split_addresses;	 
extern int dslots_load_total;		 
extern int dslots_load_filled;		 
extern int dslots_jump_total;		 
extern int dslots_jump_filled;		 
extern int dslots_number_nops;		 
extern int num_refs[3];			 
extern struct rtx_def *mips_load_reg;	 
extern struct rtx_def *mips_load_reg2;	 
extern struct rtx_def *mips_load_reg3;	 
extern struct rtx_def *mips_load_reg4;	 
extern struct rtx_def *embedded_pic_fnaddr_rtx;	 
extern int mips_string_length;		 
extern struct rtx_def *mips16_gp_pseudo_rtx;  

 


# 1 "hwint.h" 1
 










 



 














 







































# 81 "hwint.h"
















# 168 "config/mips/mips.h" 2


extern int		arith32_operand ();
extern int		arith_operand ();
extern int		cmp_op ();

extern int 	compute_frame_size ();

extern int		const_float_1_operand ();
extern void		expand_block_move ();
extern int		equality_op ();
extern void		final_prescan_insn ();
extern struct rtx_def *	function_arg ();
extern void		function_arg_advance ();
extern int		function_arg_partial_nregs ();
extern int		function_arg_pass_by_reference ();
extern void		function_epilogue ();
extern void		function_prologue ();
extern void		gen_conditional_branch ();
extern void		gen_conditional_move ();
extern struct rtx_def * gen_int_relational ();
extern void		init_cumulative_args ();
extern int		large_int ();
extern void		machine_dependent_reorg ();
extern int		mips_address_cost ();
extern void		mips_asm_file_end ();
extern void		mips_asm_file_start ();
extern int		mips_can_use_return_insn ();
extern int		mips_const_double_ok ();
extern void		mips_count_memory_refs ();

extern int 	mips_debugger_offset ();

extern void		mips_declare_object ();
extern int		mips_epilogue_delay_slots ();
extern void		mips_expand_epilogue ();
extern void		mips_expand_prologue ();
extern int		mips_check_split ();
extern char	       *mips_fill_delay_slot ();
extern const char       *mips_move_1word ();
extern const char       *mips_move_2words ();
extern void		mips_output_double ();
extern int		mips_output_external ();
extern void		mips_output_float ();
extern void		mips_output_filename ();
extern void		mips_output_lineno ();
extern const char       *output_block_move ();
extern void		override_options ();
extern int		pc_or_label_operand ();
extern void		print_operand_address ();
extern void		print_operand ();
extern void		print_options ();
extern int		reg_or_0_operand ();
extern int		true_reg_or_0_operand ();
extern int		simple_epilogue_p ();
extern int		simple_memory_operand ();
extern int		double_memory_operand ();
extern int		small_int ();
extern void		trace ();
extern int		uns_arith_operand ();
extern struct rtx_def *	embedded_pic_offset ();
extern void		mips_order_regs_for_local_alloc ();
extern struct rtx_def *	mips16_gp_pseudo_reg ();
extern struct rtx_def * mips16_gp_offset ();
extern int		mips16_gp_offset_p ();
extern int		mips16_constant ();
extern int		mips16_constant_after_function_p ();
extern int		build_mips16_call_stub ();

 
extern int		address_operand ();
extern int		call_insn_operand ();
extern int		const_double_operand ();
extern int		const_int_operand ();
extern int		consttable_operand ();
extern int		general_operand ();
extern int		immediate_operand ();
extern int		memory_address_p ();
extern int		memory_operand ();
extern int		nonimmediate_operand ();
extern int		nonmemory_operand ();
extern int		pic_address_needs_scratch ();
extern int		register_operand ();
extern int		scratch_operand ();
extern int		move_operand ();
extern int		movdi_operand ();
extern int		se_register_operand ();
extern int		se_reg_or_0_operand ();
extern int		se_uns_arith_operand ();
extern int		se_arith_operand ();
extern int		se_nonmemory_operand ();
extern int		se_nonimmediate_operand ();
extern int              extend_operator ();
extern int              highpart_shift_operator ();
extern int		m16_uimm3_b ();
extern int		m16_simm4_1 ();
extern int		m16_nsimm4_1 ();
extern int		m16_simm5_1 ();
extern int		m16_nsimm5_1 ();
extern int		m16_uimm5_4 ();
extern int		m16_nuimm5_4 ();
extern int		m16_simm8_1 ();
extern int		m16_nsimm8_1 ();
extern int		m16_uimm8_1 ();
extern int		m16_nuimm8_1 ();
extern int		m16_uimm8_m1_1 ();
extern int		m16_uimm8_4 ();
extern int		m16_nuimm8_4 ();
extern int		m16_simm8_8 ();
extern int		m16_nsimm8_8 ();
extern int		m16_usym8_4 ();
extern int		m16_usym5_4 ();

 
extern void		data_section ();
extern void		rdata_section ();
extern void		readonly_data_section ();
extern void		sdata_section ();
extern void		text_section ();
extern void		mips_select_rtx_section ();
extern void		mips_select_section ();

 














 

 

					 

























					 


					 











					 





					 


 


					 




					 











					 


					 


					 


					 


					 


					 


					 



					 


					 



					 




					 












 




 




					 


 






# 570 "config/mips/mips.h"

 

























 












 

















# 641 "config/mips/mips.h"

 




 



 





 












 








 










 























# 754 "config/mips/mips.h"

 


 


 



# 788 "config/mips/mips.h"


 





 







 

 







 






 




 




 













 







 










 






 


# 882 "config/mips/mips.h"

 








 








# 911 "config/mips/mips.h"



 







 
 









 

 





 



# 961 "config/mips/mips.h"


 

 








 





 









 



# 1014 "config/mips/mips.h"


 










# 1040 "config/mips/mips.h"





 











 

























 


 








 







 






 


 


 



 


 






 


 


 




























































































 





# 1247 "config/mips/mips.h"


# 1261 "config/mips/mips.h"




















 











 





# 1310 "config/mips/mips.h"


 

 



 




 


 


 







 


 






 



 


 





 






 





 





 




 





 




 




 




 





 


 


 


 


 
 


 


 



 





















 

















 


















 






 



 










 















 




 



 

 

















 














 
















 




























 











 













 










extern char mips_hard_regno_mode_ok[][76 ];




 









 
 

 


 

 

 





 




 





 


 



 


 

 

 





 









 



 




 










 








 



















enum reg_class
{
  NO_REGS,			 
  M16_NA_REGS,			 
  M16_REGS,			 
  T_REG,			 
  M16_T_REGS,			 
  GR_REGS,			 
  FP_REGS,			 
  HI_REG,			 
  LO_REG,			 
  HILO_REG,			 
  MD_REGS,			 
  HI_AND_GR_REGS,		 
  LO_AND_GR_REGS,
  HILO_AND_GR_REGS,
  ST_REGS,			 
  ALL_REGS,			 
  LIM_REG_CLASSES		 
};





 




# 1827 "config/mips/mips.h"

 











# 1858 "config/mips/mips.h"


 




extern enum reg_class mips_regno_to_class[];



 





 







 






 




 












 






 

 

















extern enum reg_class mips_char_to_class[];



 





 

























# 1986 "config/mips/mips.h"

 


 







 











# 2018 "config/mips/mips.h"

 





# 2040 "config/mips/mips.h"

 

















 








 

extern enum reg_class	mips_secondary_reload_class ();