GCC Middle and Back End API Reference
dwarf2asm.c File Reference

Functions

void dw2_assemble_integer ()
void dw2_asm_output_data_raw ()
void dw2_asm_output_data (int size, unsigned HOST_WIDE_INT value, const char *comment,...)
void dw2_asm_output_delta (int size, const char *lab1, const char *lab2, const char *comment,...)
void dw2_asm_output_vms_delta (int size, const char *lab1, const char *lab2, const char *comment,...)
void dw2_asm_output_offset (int size, const char *label, section *base, const char *comment,...)
void dw2_asm_output_pcrel (int size, const char *label, const char *comment,...)
void dw2_asm_output_addr (int size, const char *label, const char *comment,...)
void dw2_asm_output_addr_rtx (int size, rtx addr, const char *comment,...)
void dw2_asm_output_nstring (const char *str, size_t orig_len, const char *comment,...)
int size_of_uleb128 ()
int size_of_sleb128 ()
int size_of_encoded_value ()
const char * eh_data_format_name ()
void dw2_asm_output_data_uleb128_raw ()
void dw2_asm_output_data_uleb128 (unsigned HOST_WIDE_INT value, const char *comment,...)
void dw2_asm_output_data_sleb128_raw ()
void dw2_asm_output_data_sleb128 (HOST_WIDE_INT value, const char *comment,...)
void dw2_asm_output_delta_uleb128 (const char *lab1, const char *lab2, const char *comment,...)
void dw2_asm_output_delta_sleb128 (const char *lab1, const char *lab2, const char *comment,...)
static int dw2_output_indirect_constant_1 (splay_tree_node, void *)
static int splay_tree_compare_strings ()
rtx dw2_force_const_mem ()
void dw2_output_indirect_constants ()
void dw2_asm_output_encoded_addr_rtx (int encoding, rtx addr, bool is_public, const char *comment,...)

Variables

static splay_tree indirect_pool
static int dw2_const_labelno

Function Documentation

void dw2_asm_output_addr ( int  size,
const char *  label,
const char *  comment,
  ... 
)
void dw2_asm_output_addr_rtx ( int  size,
rtx  addr,
const char *  comment,
  ... 
)
Similar, but use an RTX expression instead of a text label.   

References asm_out_file, and dw2_assemble_integer().

Referenced by output_addr_table_entry(), output_attr_index_or_value(), and output_loc_operands().

void dw2_asm_output_data_raw ( )
Output a value of a given size in target byte order.   

References asm_out_file.

Referenced by output_loc_operands_raw().

void dw2_asm_output_data_sleb128 ( HOST_WIDE_INT  value,
const char *  comment,
  ... 
)
void dw2_asm_output_data_sleb128_raw ( )
Output an signed LEB128 quantity, but only the byte values.   

References asm_out_file.

Referenced by output_loc_operands_raw().

void dw2_asm_output_data_uleb128_raw ( )
Output an unsigned LEB128 quantity, but only the byte values.   

References asm_out_file.

Referenced by output_cfa_loc_raw(), output_cfi_directive(), and output_loc_operands_raw().

void dw2_asm_output_delta ( int  size,
const char *  lab1,
const char *  lab2,
const char *  comment,
  ... 
)
Output the difference between two symbols in a given size.   
??? There appear to be assemblers that do not like such
   subtraction, but do support ASM_SET_OP.  It's unfortunately
   impossible to do here, since the ASM_SET_OP for the difference
   symbol must appear after both symbols are defined.   

References asm_out_file, and dw2_assemble_integer().

Referenced by dw2_asm_output_vms_delta(), dw2_output_call_site_table(), output_aranges(), output_call_frame_info(), output_cfi(), output_die(), output_fde(), output_line_info(), output_loc_list(), output_loc_list_offset(), and output_ranges().

void dw2_asm_output_delta_sleb128 ( const char *  lab1,
const char *  lab2,
const char *  comment,
  ... 
)

References asm_out_file, and assemble_name().

void dw2_asm_output_delta_uleb128 ( const char *  lab1,
const char *  lab2,
const char *  comment,
  ... 
)
void dw2_asm_output_encoded_addr_rtx ( int  encoding,
rtx  addr,
bool  is_public,
const char *  comment,
  ... 
)
Like dw2_asm_output_addr_rtx, but encode the pointer as directed.
   If PUBLIC is set and the encoding is DW_EH_PE_indirect, the indirect
   reference is shared across the entire application (or DSO).   

References asm_out_file, assemble_align(), assemble_integer(), dw2_assemble_integer(), dw2_force_const_mem(), pc_rtx, and size_of_encoded_value().

Referenced by output_call_frame_info(), output_cfi(), output_fde(), and output_ttype().

void dw2_asm_output_nstring ( const char *  str,
size_t  orig_len,
const char *  comment,
  ... 
)
Output the first ORIG_LEN characters of STR as a string.
   If ORIG_LEN is equal to -1, ignore this parameter and output
   the entire STR instead.
   If COMMENT is not NULL and comments in the debug information
   have been requested by the user, append the given COMMENT
   to the generated output.   

References asm_out_file, assemble_integer(), len, and strlen().

Referenced by output_call_frame_info(), output_die(), output_file_names(), output_macinfo_op(), and output_pubnames().

void dw2_asm_output_offset ( int  size,
const char *  label,
section base,
const char *  comment,
  ... 
)
Output a section-relative reference to a LABEL, which was placed in
   BASE.  In general this can only be done for debugging symbols.
   E.g. on most targets with the GNU linker, this is accomplished with
   a direct reference and the knowledge that the debugging section
   will be placed at VMA 0.  Some targets have special relocations for
   this that we must use.   

References asm_out_file, and dw2_assemble_integer().

Referenced by output_aranges(), output_comdat_type_unit(), output_compilation_unit_header(), output_die(), output_fde(), output_loc_list_offset(), output_loc_operands(), output_macinfo(), output_macinfo_op(), output_pubnames(), output_range_list_offset(), and output_skeleton_debug_sections().

void dw2_asm_output_pcrel ( int  size,
const char *  label,
const char *  comment,
  ... 
)
Output a self-relative reference to a label, possibly in a
   different section or object file.   

References asm_out_file, dw2_assemble_integer(), and pc_rtx.

void dw2_asm_output_vms_delta ( int  size,
const char *  lab1,
const char *  lab2,
const char *  comment,
  ... 
)
Output the difference between two symbols in instruction units
   in a given size.   

References asm_out_file, and dw2_asm_output_delta().

Referenced by output_die().

void dw2_assemble_integer ( )
@verbatim Dwarf2 assembler output helper routines.

Copyright (C) 2001-2013 Free Software Foundation, Inc.

This file is part of GCC.

GCC 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 3, or (at your option) any later version.

GCC 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 GCC; see the file COPYING3. If not see http://www.gnu.org/licenses/.

Output an unaligned integer with the given value and size.  Prefer not
   to print a newline, since the caller may want to add a comment.   

References asm_out_file, assemble_integer(), fprint_whex(), HOST_WIDE_INT, integer_asm_op(), and output_addr_const().

Referenced by dw2_asm_output_addr(), dw2_asm_output_addr_rtx(), dw2_asm_output_delta(), dw2_asm_output_encoded_addr_rtx(), dw2_asm_output_offset(), and dw2_asm_output_pcrel().

rtx dw2_force_const_mem ( )
Put X, a SYMBOL_REF, in memory.  Return a SYMBOL_REF to the allocated
   memory.  Differs from force_const_mem in that a single pool is used for
   the entire unit of translation, and the memory is not guaranteed to be
   "near" the function in any interesting sense.  IS_PUBLIC controls whether
   the symbol can be shared across the entire application (or DSO).   

References dw2_const_labelno, get_identifier(), maybe_get_identifier(), splay_tree_compare_strings(), strlen(), and targetm.

Referenced by dw2_asm_output_encoded_addr_rtx(), and dwarf2out_do_cfi_startproc().

static int dw2_output_indirect_constant_1 ( splay_tree_node  node,
void *  data 
)
static
A helper function for dw2_output_indirect_constants called through
   splay_tree_foreach.  Emit one queued constant to memory.   

References assemble_integer(), assemble_variable(), make_decl_one_only(), and VISIBILITY_HIDDEN.

Referenced by dw2_output_indirect_constants().

void dw2_output_indirect_constants ( void  )
Emit the constants queued through dw2_force_const_mem.   

References dw2_output_indirect_constant_1().

Referenced by compile_file().

const char* eh_data_format_name ( )
Yield a name for a given pointer encoding.   

Referenced by output_call_frame_info(), and output_one_function_exception_table().

int size_of_encoded_value ( )
Given an encoding, return the number of bytes the format occupies.
   This is only defined for fixed-size encodings, and so does not
   include leb128.   

Referenced by dw2_asm_output_encoded_addr_rtx(), output_call_frame_info(), output_fde(), and output_one_function_exception_table().

int size_of_sleb128 ( )
Return the size of a signed LEB128 quantity.   

Referenced by int_loc_descriptor(), output_call_frame_info(), size_of_die(), size_of_int_loc_descriptor(), and size_of_loc_descr().

static int splay_tree_compare_strings ( )
static
Comparison function for a splay tree in which the keys are strings.
   K1 and K2 have the dynamic type "const char *".  Returns <0, 0, or
   >0 to indicate whether K1 is less than, equal to, or greater than
   K2, respectively.   

Referenced by dw2_force_const_mem().


Variable Documentation

int dw2_const_labelno
static

Referenced by dw2_force_const_mem().

splay_tree indirect_pool
static