3 // Support for 64-bit subtraction.
5 // Copyright (C) 2003-2013 Free Software Foundation, Inc.
6 // Contributed by Picochip Ltd.
7 // Maintained by Hariharan Sandanagobalane (hariharan@picochip.com)
9 // This file is free software; you can redistribute it and/or modify it
10 // under the terms of the GNU General Public License as published by the
11 // Free Software Foundation; either version 3, or (at your option) any
14 // This file is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // General Public License for more details.
19 // Under Section 7 of GPL version 3, you are granted additional
20 // permissions described in the GCC Runtime Library Exception, version
21 // 3.1, as published by the Free Software Foundation.
23 // You should have received a copy of the GNU General Public License and
24 // a copy of the GCC Runtime Library Exception along with this program;
25 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
26 // <http://www.gnu.org/licenses/>.
34 _picoMark_FUNCTION_BEGIN=
35 // picoChip Function Prologue : &__subdi3 = 4 bytes
37 // The first operand of sub is completely in registers r[2-5]
38 // The second operand of sub is in stack FP(0-3)
39 // and result need to be written pointed to by the register r0.
40 // All we need to do is to load the appropriate values, sub them
41 // appropriately (with sub or subb) and then store the values back.
55 _picoMark_FUNCTION_END=
56 // picoChip Function Epilogue : __subdi3
58 //============================================================================
59 // All DWARF information between this marker, and the END OF DWARF
60 // marker should be included in the source file. Search for
61 // FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
62 // provide the relevant information. Add markers called
63 // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
64 // function in question.
65 //============================================================================
67 //============================================================================
69 //============================================================================
75 .unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
77 .unalignedInitLong 0xffffffff
78 .initByte 0x1 // CIE Version
79 .ascii 16#0# // CIE Augmentation
80 .uleb128 0x1 // CIE Code Alignment Factor
81 .sleb128 2 // CIE Data Alignment Factor
82 .initByte 0xc // CIE RA Column
83 .initByte 0xc // DW_CFA_def_cfa
90 _picoMark_LSFDE0I900821033007563=
91 .unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
93 .unalignedInitLong _picoMark_DebugFrame // FDE CIE offset
94 .unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location
95 .unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
96 .initByte 0xe // DW_CFA_def_cfa_offset
97 .uleb128 0x4 // <-- FUNCTION_STACK_SIZE_GOES_HERE
98 .initByte 0x4 // DW_CFA_advance_loc4
99 .unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
100 .initByte 0xe // DW_CFA_def_cfa_offset
105 //============================================================================
106 // Abbrevation information.
107 //============================================================================
109 .section .debug_abbrev
110 _picoMark_ABBREVIATIONS=
112 .section .debug_abbrev
113 .uleb128 0x1 // (abbrev code)
114 .uleb128 0x11 // (TAG: DW_TAG_compile_unit)
115 .initByte 0x1 // DW_children_yes
116 .uleb128 0x10 // (DW_AT_stmt_list)
117 .uleb128 0x6 // (DW_FORM_data4)
118 .uleb128 0x12 // (DW_AT_high_pc)
119 .uleb128 0x1 // (DW_FORM_addr)
120 .uleb128 0x11 // (DW_AT_low_pc)
121 .uleb128 0x1 // (DW_FORM_addr)
122 .uleb128 0x25 // (DW_AT_producer)
123 .uleb128 0x8 // (DW_FORM_string)
124 .uleb128 0x13 // (DW_AT_language)
125 .uleb128 0x5 // (DW_FORM_data2)
126 .uleb128 0x3 // (DW_AT_name)
127 .uleb128 0x8 // (DW_FORM_string)
131 .uleb128 0x2 ;# (abbrev code)
132 .uleb128 0x2e ;# (TAG: DW_TAG_subprogram)
133 .initByte 0x0 ;# DW_children_no
134 .uleb128 0x3 ;# (DW_AT_name)
135 .uleb128 0x8 ;# (DW_FORM_string)
136 .uleb128 0x11 ;# (DW_AT_low_pc)
137 .uleb128 0x1 ;# (DW_FORM_addr)
138 .uleb128 0x12 ;# (DW_AT_high_pc)
139 .uleb128 0x1 ;# (DW_FORM_addr)
145 //============================================================================
146 // Line information. DwarfLib requires this to be present, but it can
148 //============================================================================
153 //============================================================================
155 //============================================================================
159 .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
160 _picoMark_DEBUG_INFO_BEGIN=
161 .unalignedInitWord 0x2
162 .unalignedInitLong _picoMark_ABBREVIATIONS
165 // Compile unit information.
166 .uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit)
167 .unalignedInitLong _picoMark_LINES
168 .unalignedInitWord _picoMark_FUNCTION_END
169 .unalignedInitWord _picoMark_FUNCTION_BEGIN
170 // Producer is `picoChip'
171 .ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
172 .unalignedInitWord 0xcafe // ASM language
173 .ascii 16#0# // Name. DwarfLib expects this to be present.
175 .uleb128 0x2 ;# (DIE DW_TAG_subprogram)
177 // FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
178 // digit is specified using the format 16#XX#
179 .ascii 16#5f# 16#73# 16#75# 16#62# 16#64# 16#69# 16#33# 16#0# // Function name `_subdi3'
180 .unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc
181 .unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc
183 .initByte 0x0 // end of compile unit children.
185 _picoMark_DEBUG_INFO_END=
187 //============================================================================
189 //============================================================================