diff options
Diffstat (limited to 'contrib/gdb/gdb/ia64-fbsd-tdep.c')
| -rw-r--r-- | contrib/gdb/gdb/ia64-fbsd-tdep.c | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/ia64-fbsd-tdep.c b/contrib/gdb/gdb/ia64-fbsd-tdep.c new file mode 100644 index 0000000..2c2a71f --- /dev/null +++ b/contrib/gdb/gdb/ia64-fbsd-tdep.c @@ -0,0 +1,291 @@ +/* + * Copyright (c) 2004 Marcel Moolenaar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "defs.h" +#include "gdb_string.h" +#include "regcache.h" +#include "regset.h" +#include "solib-svr4.h" +#include "value.h" + +#include "ia64-tdep.h" + +#define FPREG_SUPPLIES(r) ((r) >= IA64_FR0_REGNUM && (r) <= IA64_FR127_REGNUM) +#define GREG_SUPPLIES(r) (!FPREG_SUPPLIES(r)) + +static int reg_offset[462] = { + -1, 96, 248, 256, 152, 160, 168, 176, /* Regs 0-7. */ + 264, 272, 280, 288, 0, 64, 296, 304, /* Regs 8-15. */ + 312, 320, 328, 336, 344, 352, 360, 368, /* Regs 16-23. */ + 376, 384, 392, 400, 408, 416, 424, 432, /* Regs 24-31. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 32-39. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 40-47. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 48-55. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 56-63. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 64-71. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 72-79. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 80-87. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 88-95. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 96-103. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 104-111. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 112-119. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 120-127. */ + -1, -1, 0, 16, 32, 48, 320, 336, /* Regs 128-135. */ + 352, 368, 384, 400, 416, 432, 448, 464, /* Regs 136-143. */ + 64, 80, 96, 112, 128, 144, 160, 176, /* Regs 144-151. */ + 192, 208, 224, 240, 256, 272, 288, 304, /* Regs 152-159. */ + 480, 496, 512, 528, 544, 560, 576, 592, /* Regs 160-167. */ + 608, 624, 640, 656, 672, 688, 704, 720, /* Regs 168-175. */ + 736, 752, 768, 784, 800, 816, 832, 848, /* Regs 176-183. */ + 864, 880, 896, 912, 928, 944, 960, 976, /* Regs 184-191. */ + 992, 1008, 1024, 1040, 1056, 1072, 1088, 1104, /* Regs 192-199. */ + 1120, 1136, 1152, 1168, 1184, 1200, 1216, 1232, /* Regs 200-207. */ + 1248, 1264, 1280, 1296, 1312, 1328, 1344, 1360, /* Regs 208-215. */ + 1376, 1392, 1408, 1424, 1440, 1456, 1472, 1488, /* Regs 216-223. */ + 1504, 1520, 1536, 1552, 1568, 1584, 1600, 1616, /* Regs 224-231. */ + 1632, 1648, 1664, 1680, 1696, 1712, 1728, 1744, /* Regs 232-239. */ + 1760, 1776, 1792, 1808, 1824, 1840, 1856, 1872, /* Regs 240-247. */ + 1888, 1904, 1920, 1936, 1952, 1968, 1984, 2000, /* Regs 248-255. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 256-263. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 264-271. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 272-279. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 280-287. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 288-295. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 296-303. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 304-311. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 312-319. */ + 16, 184, 192, 200, 208, 216, 440, 448, /* Regs 320-327. */ + -1, -1, 24, 120, 88, 112, -1, -1, /* Regs 328-335. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 336-343. */ + -1, -1, -1, -1, -1, -1, 72, 104, /* Regs 344-351. */ + 40, 48, -1, -1, -1, -1, -1, 464, /* Regs 352-359. */ + 472, -1, -1, -1, -1, -1, 456, -1, /* Regs 360-367. */ + -1, -1, 8, -1, -1, -1, 80, -1, /* Regs 368-375. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 376-383. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 384-391. */ + -1, -1, -1, -1, -1, -1, 32, 224, /* Regs 392-399. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 400-407. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 408-415. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 416-423. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 424-431. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 432-439. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 440-447. */ + -1, -1, -1, -1, -1, -1, -1, -1, /* Regs 448-455. */ + -1, -1, -1, -1, -1, -1 +}; + +static void +ia64_fbsd_regcache_collect (struct regcache *regcache, int regno, + void *regs) +{ + int ofs; + + if (regno < 0 || regno >= NUM_REGS) + return; + + ofs = reg_offset[regno]; + if (ofs >= 0) + regcache_raw_collect (regcache, regno, (char*)regs + ofs); +} + +static void +ia64_fbsd_regcache_supply (struct regcache *regcache, int regno, + const void *regs) +{ + int ofs; + + if (regno < 0 || regno >= NUM_REGS) + return; + + ofs = reg_offset[regno]; + if (regno == IA64_BSP_REGNUM) + { + /* BSP is synthesized. It's not actually present in struct reg, + but can be derived from bspstore and ndirty. The offset of + IA64_BSP_REGNUM in the reg_offset array above is that of the + ndirty field in struct reg. */ + uint64_t bsp; + bsp = *((uint64_t*)((char *)regs + ofs)); /* ndirty */ + bsp += *((uint64_t*)((char *)regs + reg_offset[IA64_BSPSTORE_REGNUM])); + regcache_raw_supply (regcache, regno, &bsp); + } + else + { + if (ofs < 0) + regcache_raw_supply (regcache, regno, NULL); + else + regcache_raw_supply (regcache, regno, (char *)regs + ofs); + } +} + +void +fill_fpregset (void *fpregs, int regno) +{ + if (regno == -1) + { + for (regno = 0; regno < NUM_REGS; regno++) + { + if (FPREG_SUPPLIES(regno)) + ia64_fbsd_regcache_collect (current_regcache, regno, fpregs); + } + } + else + { + if (FPREG_SUPPLIES(regno)) + ia64_fbsd_regcache_collect (current_regcache, regno, fpregs); + } +} + +void +fill_gregset (void *gregs, int regno) +{ + if (regno == -1) + { + for (regno = 0; regno < NUM_REGS; regno++) + { + if (GREG_SUPPLIES(regno)) + ia64_fbsd_regcache_collect (current_regcache, regno, gregs); + } + } + else + { + if (GREG_SUPPLIES(regno)) + ia64_fbsd_regcache_collect (current_regcache, regno, gregs); + } +} + +void +ia64_fbsd_supply_fpregs (const void *fpregs, int regno) +{ + if (regno == -1) + { + for (regno = 0; regno < NUM_REGS; regno++) + { + if (FPREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (current_regcache, regno, fpregs); + } + } + else + { + if (FPREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (current_regcache, regno, fpregs); + } +} + +void +ia64_fbsd_supply_gregs (const void *gregs, int regno) +{ + if (regno == -1) + { + for (regno = 0; regno < NUM_REGS; regno++) + { + if (GREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (current_regcache, regno, gregs); + } + } + else + { + if (GREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (current_regcache, regno, gregs); + } +} + +static void +ia64_fbsd_supply_gregset (const struct regset *regset, + struct regcache *regcache, int regno, + const void *gregs, size_t len) +{ + if (regno == -1) + { + for (regno = 0; regno < NUM_REGS; regno++) + { + if (GREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (regcache, regno, gregs); + } + } + else + if (GREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (regcache, regno, gregs); +} + +static void +ia64_fbsd_supply_fpregset (const struct regset *regset, + struct regcache *regcache, int regno, + const void *fpregs, size_t len) +{ + if (regno == -1) + { + for (regno = 0; regno < NUM_REGS; regno++) + { + if (FPREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (regcache, regno, fpregs); + } + } + else + if (FPREG_SUPPLIES(regno)) + ia64_fbsd_regcache_supply (regcache, regno, fpregs); +} + +static struct regset gregset = { NULL, ia64_fbsd_supply_gregset }; +static struct regset fpregset = { NULL, ia64_fbsd_supply_fpregset }; + +static const struct regset * +ia64_fbsd_regset_from_core_section (struct gdbarch *gdbarch, + const char *sect_name, size_t sect_size) +{ + if (strcmp (sect_name, ".reg") == 0) + return (&gregset); + if (strcmp (sect_name, ".reg2") == 0) + return (&fpregset); + return (NULL); +} + +static int +ia64_fbsd_pc_in_sigtramp (CORE_ADDR pc, char *func_name) +{ + uint64_t gwpage = 5ULL << 61; + return (pc >= gwpage && pc < (gwpage + 8192)) ? 1 : 0; +} + +static void +ia64_fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + set_gdbarch_pc_in_sigtramp (gdbarch, ia64_fbsd_pc_in_sigtramp); + set_gdbarch_regset_from_core_section (gdbarch, + ia64_fbsd_regset_from_core_section); + set_solib_svr4_fetch_link_map_offsets (gdbarch, + svr4_lp64_fetch_link_map_offsets); + tdep->find_global_pointer = ia64_generic_find_global_pointer; +} + +void +_initialize_ia64_fbsd_tdep (void) +{ + gdbarch_register_osabi (bfd_arch_ia64, 0ul, GDB_OSABI_FREEBSD_ELF, + ia64_fbsd_init_abi); +} |
