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1 /* Target-dependent code for NaCl. | 1 /* Target-dependent code for NaCl. |
2 | 2 |
3 Copyright (C) 2001, 2003-2012 Free Software Foundation, Inc. | 3 Copyright (C) 2001, 2003-2012 Free Software Foundation, Inc. |
4 | 4 |
5 This file is part of GDB. | 5 This file is part of GDB. |
6 | 6 |
7 This program is free software; you can redistribute it and/or modify | 7 This program is free software; you can redistribute it and/or modify |
8 it under the terms of the GNU General Public License as published by | 8 it under the terms of the GNU General Public License as published by |
9 the Free Software Foundation; either version 3 of the License, or | 9 the Free Software Foundation; either version 3 of the License, or |
10 (at your option) any later version. | 10 (at your option) any later version. |
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177 amd64_nacl_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame) | 177 amd64_nacl_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame) |
178 { | 178 { |
179 CORE_ADDR fp; | 179 CORE_ADDR fp; |
180 | 180 |
181 fp = get_frame_register_unsigned (this_frame, AMD64_RBP_REGNUM) + 16; | 181 fp = get_frame_register_unsigned (this_frame, AMD64_RBP_REGNUM) + 16; |
182 fp = amd64_nacl_addr_bits_remove(gdbarch, fp); | 182 fp = amd64_nacl_addr_bits_remove(gdbarch, fp); |
183 | 183 |
184 return frame_id_build (fp, get_frame_pc (this_frame)); | 184 return frame_id_build (fp, get_frame_pc (this_frame)); |
185 } | 185 } |
186 | 186 |
| 187 static int |
| 188 amd64_nacl_inner_than (CORE_ADDR lhs, CORE_ADDR rhs) |
| 189 { |
| 190 return (uint32_t)lhs < (uint32_t)rhs; |
| 191 } |
| 192 |
187 static void | 193 static void |
188 amd64_nacl_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | 194 amd64_nacl_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
189 { | 195 { |
190 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | 196 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
191 | 197 |
192 linux_init_abi (info, gdbarch); | 198 linux_init_abi (info, gdbarch); |
193 amd64_init_abi (info, gdbarch); | 199 amd64_init_abi (info, gdbarch); |
194 amd64_linux_init_gregset (tdep); | 200 amd64_linux_init_gregset (tdep); |
195 tdep->tdesc = tdesc_amd64_linux; | 201 tdep->tdesc = tdesc_amd64_linux; |
196 set_solib_svr4_fetch_link_map_offsets (gdbarch, | 202 set_solib_svr4_fetch_link_map_offsets (gdbarch, |
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210 | 216 |
211 /* TODO(eaeltsin): we might use address size instead of pointer size to | 217 /* TODO(eaeltsin): we might use address size instead of pointer size to |
212 distinguish between i386 and x86_64... At least address size is not | 218 distinguish between i386 and x86_64... At least address size is not |
213 a property of the data model. */ | 219 a property of the data model. */ |
214 set_gdbarch_addr_bit (gdbarch, 64); | 220 set_gdbarch_addr_bit (gdbarch, 64); |
215 | 221 |
216 /* How to extract addresses from registers. */ | 222 /* How to extract addresses from registers. */ |
217 set_gdbarch_addr_bits_remove (gdbarch, amd64_nacl_addr_bits_remove); | 223 set_gdbarch_addr_bits_remove (gdbarch, amd64_nacl_addr_bits_remove); |
218 set_gdbarch_unwind_pc (gdbarch, amd64_nacl_unwind_pc); | 224 set_gdbarch_unwind_pc (gdbarch, amd64_nacl_unwind_pc); |
219 set_gdbarch_unwind_sp (gdbarch, amd64_nacl_unwind_sp); | 225 set_gdbarch_unwind_sp (gdbarch, amd64_nacl_unwind_sp); |
| 226 set_gdbarch_inner_than (gdbarch, amd64_nacl_inner_than); |
220 | 227 |
221 /* Where to set breakpoints. */ | 228 /* Where to set breakpoints. */ |
222 set_gdbarch_adjust_breakpoint_address (gdbarch, | 229 set_gdbarch_adjust_breakpoint_address (gdbarch, |
223 amd64_nacl_adjust_breakpoint_address); | 230 amd64_nacl_adjust_breakpoint_address); |
224 set_gdbarch_software_single_step (gdbarch, amd64_nacl_software_single_step); | 231 set_gdbarch_software_single_step (gdbarch, amd64_nacl_software_single_step); |
225 /* Recognizing dummy frames. */ | 232 /* Recognizing dummy frames. */ |
226 set_gdbarch_dummy_id(gdbarch, amd64_nacl_dummy_id); | 233 set_gdbarch_dummy_id(gdbarch, amd64_nacl_dummy_id); |
227 } | 234 } |
228 | 235 |
229 /* Provide a prototype to silence -Wmissing-prototypes. */ | 236 /* Provide a prototype to silence -Wmissing-prototypes. */ |
230 extern void _initialize_nacl_tdep (void); | 237 extern void _initialize_nacl_tdep (void); |
231 | 238 |
232 void | 239 void |
233 _initialize_nacl_tdep (void) | 240 _initialize_nacl_tdep (void) |
234 { | 241 { |
235 gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, | 242 gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, |
236 nacl_osabi_sniffer); | 243 nacl_osabi_sniffer); |
237 | 244 |
238 gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, | 245 gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, |
239 GDB_OSABI_NACL, amd64_nacl_init_abi); | 246 GDB_OSABI_NACL, amd64_nacl_init_abi); |
240 | 247 |
241 gdbarch_register_osabi (bfd_arch_i386, 0, | 248 gdbarch_register_osabi (bfd_arch_i386, 0, |
242 GDB_OSABI_NACL, i386_nacl_init_abi); | 249 GDB_OSABI_NACL, i386_nacl_init_abi); |
243 } | 250 } |
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