3 // Support for 64-bit addition.
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/>.
33 _picoMark_FUNCTION_BEGIN=
35 // picoChip Function Prologue : &__adddi3 = 12 bytes
37 // The first operand of add 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, add them
41 // appropriately (with add or addc ) and then store the values back.
54 =-> ldl (FP)-1, r[7:6]
56 _picoMark_FUNCTION_END=
58 // picoChip Function Epilogue : __adddi3
61 //============================================================================
62 // All DWARF information between this marker, and the END OF DWARF
63 // marker should be included in the source file. Search for
64 // FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
65 // provide the relevant information. Add markers called
66 // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
67 // function in question.
68 //============================================================================
70 //============================================================================
72 //============================================================================
78 .unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
80 .unalignedInitLong 0xffffffff
81 .initByte 0x1 // CIE Version
82 .ascii 16#0# // CIE Augmentation
83 .uleb128 0x1 // CIE Code Alignment Factor
84 .sleb128 2 // CIE Data Alignment Factor
85 .initByte 0xc // CIE RA Column
86 .initByte 0xc // DW_CFA_def_cfa
93 _picoMark_LSFDE0I900821033007563=
94 .unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
96 .unalignedInitLong _picoMark_DebugFrame // FDE CIE offset
97 .unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location
98 .unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
99 .initByte 0xe // DW_CFA_def_cfa_offset
100 .uleb128 0xe // <-- FUNCTION_STACK_SIZE_GOES_HERE
101 .initByte 0x4 // DW_CFA_advance_loc4
102 .unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
103 .initByte 0xe // DW_CFA_def_cfa_offset
108 //============================================================================
109 // Abbrevation information.
110 //============================================================================
112 .section .debug_abbrev
113 _picoMark_ABBREVIATIONS=
115 .section .debug_abbrev
116 .uleb128 0x1 // (abbrev code)
117 .uleb128 0x11 // (TAG: DW_TAG_compile_unit)
118 .initByte 0x1 // DW_children_yes
119 .uleb128 0x10 // (DW_AT_stmt_list)
120 .uleb128 0x6 // (DW_FORM_data4)
121 .uleb128 0x12 // (DW_AT_high_pc)
122 .uleb128 0x1 // (DW_FORM_addr)
123 .uleb128 0x11 // (DW_AT_low_pc)
124 .uleb128 0x1 // (DW_FORM_addr)
125 .uleb128 0x25 // (DW_AT_producer)
126 .uleb128 0x8 // (DW_FORM_string)
127 .uleb128 0x13 // (DW_AT_language)
128 .uleb128 0x5 // (DW_FORM_data2)
129 .uleb128 0x3 // (DW_AT_name)
130 .uleb128 0x8 // (DW_FORM_string)
134 .uleb128 0x2 ;# (abbrev code)
135 .uleb128 0x2e ;# (TAG: DW_TAG_subprogram)
136 .initByte 0x0 ;# DW_children_no
137 .uleb128 0x3 ;# (DW_AT_name)
138 .uleb128 0x8 ;# (DW_FORM_string)
139 .uleb128 0x11 ;# (DW_AT_low_pc)
140 .uleb128 0x1 ;# (DW_FORM_addr)
141 .uleb128 0x12 ;# (DW_AT_high_pc)
142 .uleb128 0x1 ;# (DW_FORM_addr)
148 //============================================================================
149 // Line information. DwarfLib requires this to be present, but it can
151 //============================================================================
156 //============================================================================
158 //============================================================================
162 .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
163 _picoMark_DEBUG_INFO_BEGIN=
164 .unalignedInitWord 0x2
165 .unalignedInitLong _picoMark_ABBREVIATIONS
168 // Compile unit information.
169 .uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit)
170 .unalignedInitLong _picoMark_LINES
171 .unalignedInitWord _picoMark_FUNCTION_END
172 .unalignedInitWord _picoMark_FUNCTION_BEGIN
173 // Producer is `picoChip'
174 .ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
175 .unalignedInitWord 0xcafe // ASM language
176 .ascii 16#0# // Name. DwarfLib expects this to be present.
178 .uleb128 0x2 ;# (DIE DW_TAG_subprogram)
180 // FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
181 // digit is specified using the format 16#XX#
182 .ascii 16#5f# 16#61# 16#64# 16#64# 16#63# 16#69# 16#33# 16#0# // Function name `_adddi3'
183 .unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc
184 .unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc
186 .initByte 0x0 // end of compile unit children.
188 _picoMark_DEBUG_INFO_END=
190 //============================================================================
192 //============================================================================