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dwarf2.c
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dwarf2.c
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enum dwarf_tag
{
DW_TAG_padding = 0x00,
DW_TAG_array_type = 0x01,
DW_TAG_class_type = 0x02,
DW_TAG_entry_point = 0x03,
DW_TAG_enumeration_type = 0x04,
DW_TAG_formal_parameter = 0x05,
DW_TAG_imported_declaration = 0x08,
DW_TAG_label = 0x0a,
DW_TAG_lexical_block = 0x0b,
DW_TAG_member = 0x0d,
DW_TAG_pointer_type = 0x0f,
DW_TAG_reference_type = 0x10,
DW_TAG_compile_unit = 0x11,
DW_TAG_string_type = 0x12,
DW_TAG_structure_type = 0x13,
DW_TAG_subroutine_type = 0x15,
DW_TAG_typedef = 0x16,
DW_TAG_union_type = 0x17,
DW_TAG_unspecified_parameters = 0x18,
DW_TAG_variant = 0x19,
DW_TAG_common_block = 0x1a,
DW_TAG_common_inclusion = 0x1b,
DW_TAG_inheritance = 0x1c,
DW_TAG_inlined_subroutine = 0x1d,
DW_TAG_module = 0x1e,
DW_TAG_ptr_to_member_type = 0x1f,
DW_TAG_set_type = 0x20,
DW_TAG_subrange_type = 0x21,
DW_TAG_with_stmt = 0x22,
DW_TAG_access_declaration = 0x23,
DW_TAG_base_type = 0x24,
DW_TAG_catch_block = 0x25,
DW_TAG_const_type = 0x26,
DW_TAG_constant = 0x27,
DW_TAG_enumerator = 0x28,
DW_TAG_file_type = 0x29,
DW_TAG_friend = 0x2a,
DW_TAG_namelist = 0x2b,
DW_TAG_namelist_item = 0x2c,
DW_TAG_packed_type = 0x2d,
DW_TAG_subprogram = 0x2e,
DW_TAG_template_type_param = 0x2f,
DW_TAG_template_value_param = 0x30,
DW_TAG_thrown_type = 0x31,
DW_TAG_try_block = 0x32,
DW_TAG_variant_part = 0x33,
DW_TAG_variable = 0x34,
DW_TAG_volatile_type = 0x35,
/* SGI/MIPS Extensions */
DW_TAG_MIPS_loop = 0x4081,
/* GNU extensions */
DW_TAG_format_label = 0x4101,
DW_TAG_function_template = 0x4102,
DW_TAG_class_template = 0x4103
};
enum dwarf_children
{
DW_children_no = 0,
DW_children_yes = 1
};
enum dwarf_form
{
DW_FORM_addr = 0x01,
DW_FORM_block2 = 0x03,
DW_FORM_block4 = 0x04,
DW_FORM_data2 = 0x05,
DW_FORM_data4 = 0x06,
DW_FORM_data8 = 0x07,
DW_FORM_string = 0x08,
DW_FORM_block = 0x09,
DW_FORM_block1 = 0x0a,
DW_FORM_data1 = 0x0b,
DW_FORM_flag = 0x0c,
DW_FORM_sdata = 0x0d,
DW_FORM_strp = 0x0e,
DW_FORM_udata = 0x0f,
DW_FORM_ref_addr = 0x10,
DW_FORM_ref1 = 0x11,
DW_FORM_ref2 = 0x12,
DW_FORM_ref4 = 0x13,
DW_FORM_ref8 = 0x14,
DW_FORM_ref_udata = 0x15,
DW_FORM_indirect = 0x16
};
enum dwarf_attribute
{
DW_AT_sibling = 0x01,
DW_AT_location = 0x02,
DW_AT_name = 0x03,
DW_AT_ordering = 0x09,
DW_AT_subscr_data = 0x0a,
DW_AT_byte_size = 0x0b,
DW_AT_bit_offset = 0x0c,
DW_AT_bit_size = 0x0d,
DW_AT_element_list = 0x0f,
DW_AT_stmt_list = 0x10,
DW_AT_low_pc = 0x11,
DW_AT_high_pc = 0x12,
DW_AT_language = 0x13,
DW_AT_member = 0x14,
DW_AT_discr = 0x15,
DW_AT_discr_value = 0x16,
DW_AT_visibility = 0x17,
DW_AT_import = 0x18,
DW_AT_string_length = 0x19,
DW_AT_common_reference = 0x1a,
DW_AT_comp_dir = 0x1b,
DW_AT_const_value = 0x1c,
DW_AT_containing_type = 0x1d,
DW_AT_default_value = 0x1e,
DW_AT_inline = 0x20,
DW_AT_is_optional = 0x21,
DW_AT_lower_bound = 0x22,
DW_AT_producer = 0x25,
DW_AT_prototyped = 0x27,
DW_AT_return_addr = 0x2a,
DW_AT_start_scope = 0x2c,
DW_AT_stride_size = 0x2e,
DW_AT_upper_bound = 0x2f,
DW_AT_abstract_origin = 0x31,
DW_AT_accessibility = 0x32,
DW_AT_address_class = 0x33,
DW_AT_artificial = 0x34,
DW_AT_base_types = 0x35,
DW_AT_calling_convention = 0x36,
DW_AT_count = 0x37,
DW_AT_data_member_location = 0x38,
DW_AT_decl_column = 0x39,
DW_AT_decl_file = 0x3a,
DW_AT_decl_line = 0x3b,
DW_AT_declaration = 0x3c,
DW_AT_discr_list = 0x3d,
DW_AT_encoding = 0x3e,
DW_AT_external = 0x3f,
DW_AT_frame_base = 0x40,
DW_AT_friend = 0x41,
DW_AT_identifier_case = 0x42,
DW_AT_macro_info = 0x43,
DW_AT_namelist_items = 0x44,
DW_AT_priority = 0x45,
DW_AT_segment = 0x46,
DW_AT_specification = 0x47,
DW_AT_static_link = 0x48,
DW_AT_type = 0x49,
DW_AT_use_location = 0x4a,
DW_AT_variable_parameter = 0x4b,
DW_AT_virtuality = 0x4c,
DW_AT_vtable_elem_location = 0x4d,
DW_AT_MIPS_fde = 0x2001,
DW_AT_MIPS_loop_begin = 0x2002,
DW_AT_MIPS_tail_loop_begin = 0x2003,
DW_AT_MIPS_epilog_begin = 0x2004,
DW_AT_MIPS_loop_unroll_factor = 0x2005,
DW_AT_MIPS_software_pipeline_depth = 0x2006,
DW_AT_MIPS_linkage_name = 0x2007,
DW_AT_MIPS_stride = 0x2008,
DW_AT_MIPS_abstract_name = 0x2009,
DW_AT_MIPS_clone_origin = 0x200a,
DW_AT_MIPS_has_inlines = 0x200b,
/* GNU */
DW_AT_sf_names = 0x2101,
DW_AT_src_info = 0x2102,
DW_AT_mac_info = 0x2103,
DW_AT_src_coords = 0x2104,
DW_AT_body_begin = 0x2105,
DW_AT_body_end = 0x2106
};
enum dwarf_location_atom
{
DW_OP_addr = 0x03,
DW_OP_deref = 0x06,
DW_OP_const1u = 0x08,
DW_OP_const1s = 0x09,
DW_OP_const2u = 0x0a,
DW_OP_const2s = 0x0b,
DW_OP_const4u = 0x0c,
DW_OP_const4s = 0x0d,
DW_OP_const8u = 0x0e,
DW_OP_const8s = 0x0f,
DW_OP_constu = 0x10,
DW_OP_consts = 0x11,
DW_OP_dup = 0x12,
DW_OP_drop = 0x13,
DW_OP_over = 0x14,
DW_OP_pick = 0x15,
DW_OP_swap = 0x16,
DW_OP_rot = 0x17,
DW_OP_xderef = 0x18,
DW_OP_abs = 0x19,
DW_OP_and = 0x1a,
DW_OP_div = 0x1b,
DW_OP_minus = 0x1c,
DW_OP_mod = 0x1d,
DW_OP_mul = 0x1e,
DW_OP_neg = 0x1f,
DW_OP_not = 0x20,
DW_OP_or = 0x21,
DW_OP_plus = 0x22,
DW_OP_plus_uconst = 0x23,
DW_OP_shl = 0x24,
DW_OP_shr = 0x25,
DW_OP_shra = 0x26,
DW_OP_xor = 0x27,
DW_OP_bra = 0x28,
DW_OP_eq = 0x29,
DW_OP_ge = 0x2a,
DW_OP_gt = 0x2b,
DW_OP_le = 0x2c,
DW_OP_lt = 0x2d,
DW_OP_ne = 0x2e,
DW_OP_skip = 0x2f,
DW_OP_lit0 = 0x30,
DW_OP_lit1 = 0x31,
DW_OP_lit2 = 0x32,
DW_OP_lit3 = 0x33,
DW_OP_lit4 = 0x34,
DW_OP_lit5 = 0x35,
DW_OP_lit6 = 0x36,
DW_OP_lit7 = 0x37,
DW_OP_lit8 = 0x38,
DW_OP_lit9 = 0x39,
DW_OP_lit10 = 0x3a,
DW_OP_lit11 = 0x3b,
DW_OP_lit12 = 0x3c,
DW_OP_lit13 = 0x3d,
DW_OP_lit14 = 0x3e,
DW_OP_lit15 = 0x3f,
DW_OP_lit16 = 0x40,
DW_OP_lit17 = 0x41,
DW_OP_lit18 = 0x42,
DW_OP_lit19 = 0x43,
DW_OP_lit20 = 0x44,
DW_OP_lit21 = 0x45,
DW_OP_lit22 = 0x46,
DW_OP_lit23 = 0x47,
DW_OP_lit24 = 0x48,
DW_OP_lit25 = 0x49,
DW_OP_lit26 = 0x4a,
DW_OP_lit27 = 0x4b,
DW_OP_lit28 = 0x4c,
DW_OP_lit29 = 0x4d,
DW_OP_lit30 = 0x4e,
DW_OP_lit31 = 0x4f,
DW_OP_reg0 = 0x50,
DW_OP_reg1 = 0x51,
DW_OP_reg2 = 0x52,
DW_OP_reg3 = 0x53,
DW_OP_reg4 = 0x54,
DW_OP_reg5 = 0x55,
DW_OP_reg6 = 0x56,
DW_OP_reg7 = 0x57,
DW_OP_reg8 = 0x58,
DW_OP_reg9 = 0x59,
DW_OP_reg10 = 0x5a,
DW_OP_reg11 = 0x5b,
DW_OP_reg12 = 0x5c,
DW_OP_reg13 = 0x5d,
DW_OP_reg14 = 0x5e,
DW_OP_reg15 = 0x5f,
DW_OP_reg16 = 0x60,
DW_OP_reg17 = 0x61,
DW_OP_reg18 = 0x62,
DW_OP_reg19 = 0x63,
DW_OP_reg20 = 0x64,
DW_OP_reg21 = 0x65,
DW_OP_reg22 = 0x66,
DW_OP_reg23 = 0x67,
DW_OP_reg24 = 0x68,
DW_OP_reg25 = 0x69,
DW_OP_reg26 = 0x6a,
DW_OP_reg27 = 0x6b,
DW_OP_reg28 = 0x6c,
DW_OP_reg29 = 0x6d,
DW_OP_reg30 = 0x6e,
DW_OP_reg31 = 0x6f,
DW_OP_breg0 = 0x70,
DW_OP_breg1 = 0x71,
DW_OP_breg2 = 0x72,
DW_OP_breg3 = 0x73,
DW_OP_breg4 = 0x74,
DW_OP_breg5 = 0x75,
DW_OP_breg6 = 0x76,
DW_OP_breg7 = 0x77,
DW_OP_breg8 = 0x78,
DW_OP_breg9 = 0x79,
DW_OP_breg10 = 0x7a,
DW_OP_breg11 = 0x7b,
DW_OP_breg12 = 0x7c,
DW_OP_breg13 = 0x7d,
DW_OP_breg14 = 0x7e,
DW_OP_breg15 = 0x7f,
DW_OP_breg16 = 0x80,
DW_OP_breg17 = 0x81,
DW_OP_breg18 = 0x82,
DW_OP_breg19 = 0x83,
DW_OP_breg20 = 0x84,
DW_OP_breg21 = 0x85,
DW_OP_breg22 = 0x86,
DW_OP_breg23 = 0x87,
DW_OP_breg24 = 0x88,
DW_OP_breg25 = 0x89,
DW_OP_breg26 = 0x8a,
DW_OP_breg27 = 0x8b,
DW_OP_breg28 = 0x8c,
DW_OP_breg29 = 0x8d,
DW_OP_breg30 = 0x8e,
DW_OP_breg31 = 0x8f,
DW_OP_regx = 0x90,
DW_OP_fbreg = 0x91,
DW_OP_bregx = 0x92,
DW_OP_piece = 0x93,
DW_OP_deref_size = 0x94,
DW_OP_xderef_size = 0x95,
DW_OP_nop = 0x96
};
enum dwarf_type
{
DW_ATE_void = 0x0,
DW_ATE_address = 0x1,
DW_ATE_boolean = 0x2,
DW_ATE_complex_float = 0x3,
DW_ATE_float = 0x4,
DW_ATE_signed = 0x5,
DW_ATE_signed_char = 0x6,
DW_ATE_unsigned = 0x7,
DW_ATE_unsigned_char = 0x8
};
enum dwarf_array_dim_ordering
{
DW_ORD_row_major = 0,
DW_ORD_col_major = 1
};
enum dwarf_access_attribute
{
DW_ACCESS_public = 1,
DW_ACCESS_protected = 2,
DW_ACCESS_private = 3
};
enum dwarf_visibility_attribute
{
DW_VIS_local = 1,
DW_VIS_exported = 2,
DW_VIS_qualified = 3
};
enum dwarf_virtuality_attribute
{
DW_VIRTUALITY_none = 0,
DW_VIRTUALITY_virtual = 1,
DW_VIRTUALITY_pure_virtual = 2
};
enum dwarf_id_case
{
DW_ID_case_sensitive = 0,
DW_ID_up_case = 1,
DW_ID_down_case = 2,
DW_ID_case_insensitive = 3
};
enum dwarf_calling_convention
{
DW_CC_normal = 0x1,
DW_CC_program = 0x2,
DW_CC_nocall = 0x3
};
enum dwarf_inline_attribute
{
DW_INL_not_inlined = 0,
DW_INL_inlined = 1,
DW_INL_declared_not_inlined = 2,
DW_INL_declared_inlined = 3
};
enum dwarf_descrim_list
{
DW_DSC_label = 0,
DW_DSC_range = 1
};
enum dwarf_line_number_ops
{
DW_LNS_extended_op = 0,
DW_LNS_copy = 1,
DW_LNS_advance_pc = 2,
DW_LNS_advance_line = 3,
DW_LNS_set_file = 4,
DW_LNS_set_column = 5,
DW_LNS_negate_stmt = 6,
DW_LNS_set_basic_block = 7,
DW_LNS_const_add_pc = 8,
DW_LNS_fixed_advance_pc = 9
};
enum dwarf_line_number_x_ops
{
DW_LNE_end_sequence = 1,
DW_LNE_set_address = 2,
DW_LNE_define_file = 3
};
enum dwarf_call_frame_info
{
DW_CFA_advance_loc = 0x40,
DW_CFA_offset = 0x80,
DW_CFA_restore = 0xc0,
DW_CFA_nop = 0x00,
DW_CFA_set_loc = 0x01,
DW_CFA_advance_loc1 = 0x02,
DW_CFA_advance_loc2 = 0x03,
DW_CFA_advance_loc4 = 0x04,
DW_CFA_offset_extended = 0x05,
DW_CFA_restore_extended = 0x06,
DW_CFA_undefined = 0x07,
DW_CFA_same_value = 0x08,
DW_CFA_register = 0x09,
DW_CFA_remember_state = 0x0a,
DW_CFA_restore_state = 0x0b,
DW_CFA_def_cfa = 0x0c,
DW_CFA_def_cfa_register = 0x0d,
DW_CFA_def_cfa_offset = 0x0e,
DW_CFA_MIPS_advance_loc8 = 0x1d
};
#define DW_CIE_ID 0xffffffff
#define DW_CIE_VERSION 1
#define DW_CFA_extended 0
#define DW_CFA_low_user 0x1c
#define DW_CFA_high_user 0x3f
#define DW_CHILDREN_no 0x00
#define DW_CHILDREN_yes 0x01
#define DW_ADDR_none 0
enum dwarf_source_language
{
DW_LANG_C89 = 0x0001,
DW_LANG_C = 0x0002,
DW_LANG_Ada83 = 0x0003,
DW_LANG_C_plus_plus = 0x0004,
DW_LANG_Cobol74 = 0x0005,
DW_LANG_Cobol85 = 0x0006,
DW_LANG_Fortran77 = 0x0007,
DW_LANG_Fortran90 = 0x0008,
DW_LANG_Pascal83 = 0x0009,
DW_LANG_Modula2 = 0x000a,
DW_LANG_Mips_Assembler = 0x8001
};
enum dwarf_macinfo_record_type
{
DW_MACINFO_define = 1,
DW_MACINFO_undef = 2,
DW_MACINFO_start_file = 3,
DW_MACINFO_end_file = 4,
DW_MACINFO_vendor_ext = 255
};
#define HAVE_LOCATION_LISTS 0
/* provided by the code generator */
static void dwarf2_print_frame_location(FILE *,struct Var *);
static zmax dwarf2_fboffset(struct Var *);
static int dwarf2_regnumber(int);
static int abbrev_label,info_start,info_end,line_start,line_end;
static int sizeof_addr;
static char *dwarfd1,*dwarfd2,*dwarfd4,*da,*lp,*ip,*dsec;
static int addr_form;
static char **names;
static int namecount;
extern struct Var *merk_varf,*first_var[],*first_ext; /*FIXME: not nice */
extern struct struct_declaration *first_sd[];
#define COMP_UNIT 1UL
#define SUBPROGRAM 2UL
#define SUBPROGRAMVOID 3UL
#define BASETYPE 4UL
#define POINTERTYPE 5UL
#define CONSTTYPE 6UL
#define VOLATILETYPE 7UL
#define FORMALPARAMETER 8UL
#define VARIABLE 9UL
#define ARRAYTYPE 10UL
#define ARRAYDIM 11UL
#define STRUCTTYPE 12UL
#define UNIONTYPE 13UL
#define STRUCTTAG 14UL
#define UNIONTAG 15UL
#define TYPEDEFTYPE 16UL
#define MEMBERTYPE 17UL
#define FUNCTYPE 18UL
#define VOIDFUNCTYPE 19UL
#define PARMTYPE 20UL
struct dwarf2_line_info {
struct dwarf2_line_info *next;
char *id;
int file,line,label;
};
static struct dwarf2_line_info *dwarf2_first_li,*dwarf2_last_li;
static void dwarf2_add_line(int file,int line,int label,char *id)
{
struct dwarf2_line_info *new,*p,*lp;
new=mymalloc(sizeof(*new));
new->file=file;
new->line=line;
new->label=label;
if(id){
new->id=mymalloc(strlen(id)+1);
strcpy(new->id,id);
}else{
new->id=0;
}
new->next=0;
#if 0
for(lp=p=dwarf2_first_li;p;p=p->next){
if(p!=lp&&p->file==file&&p->line>=line){
new->next=lp->next;
lp->next=new;
return;
}
lp=p;
}
#endif
if(dwarf2_last_li){
dwarf2_last_li->next=new;
dwarf2_last_li=new;
}else{
dwarf2_first_li=dwarf2_last_li=new;
}
#if 0
printf("linfo:\n");
for(p=dwarf2_first_li;p;p=p->next)
printf("li: line=%d\n",p->line);
#endif
}
static void dwarf2_setup(int sa,char *dwarfd1s,char *dwarfd2s,char *dwarfd4s,char *das,char *lps,char *ips,char *ds)
{
sizeof_addr=sa;
dwarfd1=dwarfd1s;
dwarfd2=dwarfd2s;
dwarfd4=dwarfd4s;
da=das;
lp=lps;
ip=ips;
dsec=ds;
if(sizeof_addr==2)
addr_form=DW_FORM_data2;
else if(sizeof_addr==4)
addr_form=DW_FORM_data4;
else if(sizeof_addr==8)
addr_form=DW_FORM_data8;
else
ierror(0);
}
static int dwarf2_uleb128_size(zumax value)
{
int size=0;
do{
value=zumrshift(value,ul2zum(7UL));
size++;
}while(!zmeqto(value,ul2zum(0UL)));
return size;
}
static void dwarf2_print_uleb128(FILE *f,zumax value)
{
unsigned long byte;
emit(f,"\t%s\t",dwarfd1);
do{
byte=zum2ul(zumand(value,ul2zum(127UL)));
value=zumrshift(value,ul2zum(7UL));
if(!zumeqto(value,ul2zum(0UL)))
emit(f,"%lu,",byte|0x80);
else
emit(f,"%lu\n",byte);
}while(!zumeqto(value,ul2zum(0UL)));
}
static int dwarf2_sleb128_size(zmax value)
{
int more=1,size=0;
long byte;
do{
byte=zm2l(zmand(value,l2zm(127L)));
value=zmrshift(value,l2zm(7L)); /*FIXME*/
if((zmeqto(value,l2zm(0L))&&!(byte&0x40))||
(zmeqto(value,l2zm(-1L))&&(byte&0x40)))
more=0;
size++;
}while(more);
return size;
}
static void dwarf2_print_sleb128(FILE *f,zmax value)
{
int more=1;
long byte;
emit(f,"\t%s\t",dwarfd1);
do{
byte=zm2l(zmand(value,l2zm(127L)));
value=zmrshift(value,l2zm(7L)); /*FIXME*/
if((zmeqto(value,l2zm(0L))&&!(byte&0x40))||
(zmeqto(value,l2zm(-1L))&&(byte&0x40))){
more=0;
emit(f,"%ld\n",byte);
}else{
emit(f,"%ld,",byte|0x80);
}
}while(more);
}
static void dwarf2_print_location(FILE *f,struct obj *o)
{
if(o->flags&(KONST|DREFOBJ)) ierror(0);
if(!(o->flags&(VAR|REG))) ierror(0);
if(o->flags®){
int r=dwarf2_regnumber(o->reg);
if(r<=31){
emit(f,"\t%s\t%d\n",dwarfd2,1);
emit(f,"\t%s\t%d\n",dwarfd1,DW_OP_reg0+r);
}else{
emit(f,"\t%s\t%d\n",dwarfd2,1+dwarf2_uleb128_size(ul2zum((unsigned long)r)));
emit(f,"\t%s\t%d\n",dwarfd1,DW_OP_regx);
dwarf2_print_uleb128(f,ul2zum(r));
}
}else{
if(o->v->storage_class==STATIC||o->v->storage_class==EXTERN){
if(cross_module&&!(o->v->flags&REFERENCED)){
emit(f,"\t%s\t0\n",dwarfd1);
}else{
emit(f,"\t%s\t%d\n",dwarfd2,(int)(1+sizeof_addr));
emit(f,"\t%s\t%d\n",dwarfd1,DW_OP_addr);
if(o->v->storage_class==STATIC)
emit(f,"\t%s\t%s%ld\n",da,lp,zm2l(o->v->offset));
else
emit(f,"\t%s\t%s%s\n",da,ip,o->v->identifier);
}
}else{
zmax of=dwarf2_fboffset(o->v);
emit(f,"\t%s\t%d\n",dwarfd2,1+dwarf2_sleb128_size(of));
emit(f,"\t%s\t%d\n",dwarfd1,DW_OP_fbreg);
dwarf2_print_sleb128(f,of);
}
}
}
static int dwarf2_file(const char *p)
{
int i;
if(!p) ierror(0);
for(i=0;i<namecount;i++)
if(!strcmp(p,names[i]))
return i+1;
namecount++;
names=myrealloc(names,namecount*sizeof(*names));
names[namecount-1]=mymalloc(strlen(p)+1);
strcpy(names[namecount-1],p);
return namecount;
}
static int dwarf2_type(FILE *f,struct Typ *t)
{
int l,lo;char *p;
if(ISPOINTER(t->flags)){
lo=dwarf2_type(f,t->next);
l=++label;
emit(f,"%s%d:\n",lp,l);
dwarf2_print_uleb128(f,ul2zum(POINTERTYPE));
emit(f,"\t%s\t%s%d\n",da,lp,lo);
}else if(ISINT(t->flags)||ISFLOAT(t->flags)||(t->flags&NQ)==VOID){
l=++label;
emit(f,"%s%d:\n",lp,l);
dwarf2_print_uleb128(f,ul2zum(BASETYPE));
for(p=typname[t->flags&NQ];*p;p++) emit(f,"\t%s\t%d\n",dwarfd1,*p);
emit(f,"\t%s\t0\n",dwarfd1);
if(ISFLOAT(t->flags)){
lo=DW_ATE_float;
}else if((t->flags&NQ)==CHAR){
if(t->flags&UNSIGNED)
lo=DW_ATE_unsigned_char;
else
lo=DW_ATE_signed_char;
}else if((t->flags&NQ)==VOID){
lo=DW_ATE_unsigned_char;
}else{
if(!ISINT(t->flags)) ierror(0);
if(t->flags&UNSIGNED)
lo=DW_ATE_unsigned;
else
lo=DW_ATE_signed;
}
dwarf2_print_uleb128(f,ul2zum((unsigned long)lo));
dwarf2_print_uleb128(f,sizetab[t->flags&NQ]);
}else if(ISARRAY(t->flags)){
lo=dwarf2_type(f,t->next);
l=++label;
emit(f,"%s%d:\n",lp,l);
dwarf2_print_uleb128(f,ul2zum(ARRAYTYPE));
emit(f,"\t%s\t%s%d\n",da,lp,lo);
dwarf2_print_uleb128(f,ul2zum(ARRAYDIM));
dwarf2_print_uleb128(f,zumsub(t->size,ul2zum(1UL)));
emit(f,"\t%s\t0\n",dwarfd1);
}else if(ISSTRUCT(t->flags)||ISUNION(t->flags)){
if(t->exact->label>0){
l=t->exact->label;
}else{
int i,*tl;zmax offset=l2zm(0L),al;
struct Typ *tp;
l=++label;
t->exact->label=l;
tl=mymalloc(t->exact->count*sizeof(*tl));
for(i=0;i<t->exact->count;i++)
tl[i]=dwarf2_type(f,(*t->exact->sl)[i].styp);
emit(f,"%s%d:\n",lp,l);
if(t->exact->identifier){
if(ISSTRUCT(t->flags))
dwarf2_print_uleb128(f,STRUCTTAG);
else
dwarf2_print_uleb128(f,UNIONTAG);
dwarf2_print_uleb128(f,szof(t));
for(p=t->exact->identifier;*p;p++) emit(f,"\t%s\t%d\n",dwarfd1,*p);
emit(f,"\t%s\t0\n",dwarfd1);
}else{
if(ISSTRUCT(t->flags))
dwarf2_print_uleb128(f,STRUCTTYPE);
else
dwarf2_print_uleb128(f,UNIONTYPE);
dwarf2_print_uleb128(f,szof(t));
}
for(i=0;i<t->exact->count;i++){
dwarf2_print_uleb128(f,MEMBERTYPE);
for(p=(*t->exact->sl)[i].identifier;*p;p++) emit(f,"\t%s\t%d\n",dwarfd1,*p);
emit(f,"\t%s\t0\n",dwarfd1);
emit(f,"\t%s\t%s%d\n",da,lp,tl[i]);
dwarf2_print_uleb128(f,zumadd(dwarf2_uleb128_size(zm2zum(offset)),ul2zum(1L)));
tp=(*t->exact->sl)[i].styp;
al=falign(tp);
offset=zmmult(zmdiv(zmadd(offset,zmsub(al,l2zm(1L))),al),al);
emit(f,"\t%s\t%d\n",dwarfd1,DW_OP_plus_uconst);
dwarf2_print_uleb128(f,zm2zum(offset));
if(ISSTRUCT(t->flags))
offset=zmadd(offset,szof(tp));
}
emit(f,"\t%s\t0\n",dwarfd1);
free(tl);
}
}else if(ISFUNC(t->flags)){
int *tl,i;
l=++label;
tl=mymalloc(t->exact->count*sizeof(*tl));
for(i=0;i<t->exact->count;i++){
if(((*t->exact->sl)[i].styp->flags&NQ)!=VOID)
tl[i]=dwarf2_type(f,(*t->exact->sl)[i].styp);
}
if((t->next->flags&NQ)==VOID){
emit(f,"%s%d:\n",lp,l);
dwarf2_print_uleb128(f,VOIDFUNCTYPE);
}else{
lo=dwarf2_type(f,t->next);
emit(f,"%s%d:\n",lp,l);
dwarf2_print_uleb128(f,FUNCTYPE);
emit(f,"\t%s\t%s%d\n",da,lp,lo);
}
for(i=0;i<t->exact->count;i++){
if(((*t->exact->sl)[i].styp->flags&NQ)!=VOID){
dwarf2_print_uleb128(f,PARMTYPE);
emit(f,"\t%s\t%s%d\n",da,lp,tl[i]);
}
}
emit(f,"\t%s\t0\n",dwarfd1);
free(tl);
}else{
printf("%d\n",t->flags);
ierror(0);
}
if(t->flags&VOLATILE){
lo=l;l=++label;
emit(f,"%s%d:\n",lp,l);
dwarf2_print_uleb128(f,ul2zum(VOLATILETYPE));
emit(f,"\t%s\t%s%d\n",da,lp,lo);
}
if(t->flags&CONST){
lo=l;l=++label;
emit(f,"%s%d:\n",lp,l);
dwarf2_print_uleb128(f,ul2zum(CONSTTYPE));
emit(f,"\t%s\t%s%d\n",da,lp,lo);
}
return l;
}
static void dwarf2_var(FILE *f,struct Var *v)
{
char *p;int l;
if(!(v->flags&(DEFINED|TENTATIVE))) return;
if(v->storage_class==STATIC&&v->nesting>0&&!(v->flags&(USEDASSOURCE|USEDASDEST))) return;
if(ISFUNC(v->vtyp->flags)) return;
if(*v->identifier&&v->storage_class!=TYPEDEF){
l=dwarf2_type(f,v->vtyp);
if((v->storage_class==AUTO||v->storage_class==REGISTER)&&(!zmleq(l2zm(0L),v->offset)||v->reg)){
dwarf2_print_uleb128(f,ul2zum(FORMALPARAMETER));
}else{
dwarf2_print_uleb128(f,ul2zum(VARIABLE));
}
for(p=v->identifier;*p;p++) emit(f,"\t%s\t%d\n",dwarfd1,*p);
emit(f,"\t%s\t0\n",dwarfd1);
emit(f,"\t%s\t%s%d\n",da,lp,l);
if((v->storage_class==AUTO||v->storage_class==REGISTER)&&(!zmleq(l2zm(0L),v->offset)||v->reg)){
/* no external flag for formal-parameter */
}else{
emit(f,"\t%s\t%d\n",dwarfd1,(v->storage_class==EXTERN));
}
if((!v->dfilename||!v->dline)&&(!v->filename||!v->line)) ierror(0);
if(v->dfilename){
dwarf2_print_uleb128(f,ul2zum((unsigned long)dwarf2_file(v->dfilename)));
dwarf2_print_uleb128(f,ul2zum((unsigned long)v->dline));
}else{
dwarf2_print_uleb128(f,ul2zum((unsigned long)dwarf2_file(v->filename)));
dwarf2_print_uleb128(f,ul2zum((unsigned long)v->line));
}
{ /*FIXME!*/
struct obj o;
o.flags=VAR;
o.val.vmax=l2zm(0L);
o.v=v;
#if HAVE_LOCATION_LISTS
emit(f,"\t%s\t\".debug_loc\"\n",dsec);
++label;
emit(f,"%s%d:\n",lp,label);
emit(f,"\t%s\t0\n",da);
emit(f,"\t%s\t-1\n",da);
dwarf2_print_location(f,&o);
emit(f,"\t%s\t0\n",da);
emit(f,"\t%s\t0\n",da);
emit(f,"\t%s\t\".debug_info\"\n",dsec);
emit(f,"\t%s\t%s%d\n",da,lp,label);
#else
dwarf2_print_location(f,&o);
#endif
}
}
}
static void dwarf2_print_comp_unit_header(FILE *f)
{
char *p;
extern char *copyright; /* not nice */
extern char *inname; /* not nice */
abbrev_label=++label;
emit(f,"\t%s\t\".debug_abbrev\"\n",dsec);
emit(f,"%s%d:\n",lp,abbrev_label);
dwarf2_print_uleb128(f,ul2zum(COMP_UNIT));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_compile_unit));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_yes));
dwarf2_print_uleb128(f,ul2zum(DW_AT_language));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_stmt_list));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_producer));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_string));
dwarf2_print_uleb128(f,ul2zum(DW_AT_identifier_case));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_name));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_string));
dwarf2_print_uleb128(f,ul2zum(0UL));
dwarf2_print_uleb128(f,ul2zum(0UL));
dwarf2_print_uleb128(f,ul2zum(SUBPROGRAM));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_subprogram));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_yes));
dwarf2_print_uleb128(f,ul2zum(DW_AT_name));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_string));
dwarf2_print_uleb128(f,ul2zum(DW_AT_low_pc));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_high_pc));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_type));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_external));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_flag));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_file));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_line));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_frame_base));
#if HAVE_LOCATION_LISTS
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
#else
dwarf2_print_uleb128(f,ul2zum(DW_FORM_block2));
#endif
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(SUBPROGRAMVOID));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_subprogram));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_yes));
dwarf2_print_uleb128(f,ul2zum(DW_AT_name));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_string));
dwarf2_print_uleb128(f,ul2zum(DW_AT_low_pc));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_high_pc));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_external));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_flag));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_file));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_line));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_frame_base));
#if HAVE_LOCATION_LISTS
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
#else
dwarf2_print_uleb128(f,ul2zum(DW_FORM_block2));
#endif
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(FORMALPARAMETER));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_formal_parameter));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_no));
dwarf2_print_uleb128(f,ul2zum(DW_AT_name));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_string));
dwarf2_print_uleb128(f,ul2zum(DW_AT_type));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_file));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_line));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_location));
#if HAVE_LOCATION_LISTS
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
#else
dwarf2_print_uleb128(f,ul2zum(DW_FORM_block2));
#endif
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(VARIABLE));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_variable));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_no));
dwarf2_print_uleb128(f,ul2zum(DW_AT_name));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_string));
dwarf2_print_uleb128(f,ul2zum(DW_AT_type));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
dwarf2_print_uleb128(f,ul2zum(DW_AT_external));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_flag));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_file));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_decl_line));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_location));
#if HAVE_LOCATION_LISTS
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
#else
dwarf2_print_uleb128(f,ul2zum(DW_FORM_block2));
#endif
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(BASETYPE));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_base_type));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_no));
dwarf2_print_uleb128(f,ul2zum(DW_AT_name));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_string));
dwarf2_print_uleb128(f,ul2zum(DW_AT_encoding));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(DW_AT_byte_size));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_udata));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(POINTERTYPE));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_pointer_type));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_no));
dwarf2_print_uleb128(f,ul2zum(DW_AT_type));
dwarf2_print_uleb128(f,ul2zum(DW_FORM_ref_addr));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(0L));
dwarf2_print_uleb128(f,ul2zum(CONSTTYPE));
dwarf2_print_uleb128(f,ul2zum(DW_TAG_const_type));
dwarf2_print_uleb128(f,ul2zum(DW_CHILDREN_no));
dwarf2_print_uleb128(f,ul2zum(DW_AT_type));