98 lines
4.2 KiB
C
98 lines
4.2 KiB
C
/*
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Copyright (C) 2006 Silicon Graphics, Inc. All Rights Reserved.
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Portions Copyright 2011 David Anderson. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it
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under the terms of version 2 of the GNU General Public License as
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published by the Free Software Foundation.
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This program is distributed in the hope that it would be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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Further, this software is distributed without any warranty that it is
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free of the rightful claim of any third person regarding infringement
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or the like. Any license provided herein, whether implied or
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otherwise, applies only to this software file. Patent licenses, if
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any, provided herein do not apply to combinations of this program with
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other software, or any other product whatsoever.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write the Free Software Foundation, Inc., 51
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Franklin Street - Fifth Floor, Boston MA 02110-1301, USA.
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*/
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/* Declarations helping configure the frame reader.
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We are not allowing negative register numbers.
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Which could be allowed if necessary with a little work. */
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struct dwconf_s {
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char *cf_config_file_path;
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char *cf_abi_name;
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/* 2 for old, 3 for frame interface 3. 2 means use the old
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mips-abi-oriented frame interface. 3 means use the new
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DWARF3-capable and configureable-abi interface.
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Now, anyone who revises dwarf.h and libdwarf.h to match their
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abi-of-interest will still be able to use cf_interface_number 2
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as before. But most folks don't update those header files and
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instead of making *them* configurable we make dwarfdump (and
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libdwarf) configurable sufficiently to print frame information
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sensibly. */
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int cf_interface_number;
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/* The number of table rules , aka columns. For MIPS/IRIX is 66. */
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unsigned long cf_table_entry_count;
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/* Array of cf_table_entry_count reg names. Names not filled in
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from dwarfdump.conf have NULL (0) pointer value.
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cf_named_regs_table_size must match size of cf_regs array.
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Set cf_regs_malloced 1 if table was malloced. Set 0
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if static.
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*/
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char **cf_regs;
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unsigned long cf_named_regs_table_size;
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unsigned cf_regs_malloced;
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/* The 'default initial value' when intializing a table. for MIPS
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is DW_FRAME_SAME_VAL(1035). For other ISA/ABIs may be
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DW_FRAME_UNDEFINED_VAL(1034). */
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unsigned cf_initial_rule_value;
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unsigned cf_same_val;
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unsigned cf_undefined_val;
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/* The number of the cfa 'register'. For cf_interface_number 2 of
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MIPS this is 0. For other architectures (and anytime using
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cf_interface_number 3) this should be outside the table, a
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special value such as 1436, not a table column at all). */
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unsigned cf_cfa_reg;
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/* If non-zero it is the number of bytes in an address
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for the frame data. Normally it will be zero because
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there are usually other sources for the correct address size.
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However, with DWARF2 frame data there is no explicit address
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size in the frame data and the object file might not have
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other .debug_ sections to work with.
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If zero, no address size was supplied, and that is normal and
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the already-set (or defaulted) address size is to be used.
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Only an exceptional frame configure will specify address
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size here. This won't work at all if the object needing
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this setting has different address size in different CUs. */
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unsigned cf_address_size;
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};
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/* Returns DW_DLV_OK if works. DW_DLV_ERROR if cannot do what is asked. */
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int find_conf_file_and_read_config(const char *named_file,
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const char *named_abi, char **defaults,
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struct dwconf_s *conf_out);
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void init_conf_file_data(struct dwconf_s *config_file_data);
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void init_mips_conf_file_data(struct dwconf_s *config_file_data);
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void print_reg_from_config_data(Dwarf_Unsigned reg,
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struct dwconf_s *config_data);
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void init_generic_config_1200_regs(struct dwconf_s *conf);
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