1 /* GNU/Linux/x86-64 specific low level interface, for the in-process
4 Copyright (C) 2010, 2011 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* Defined in auto-generated file amd64-linux.c. */
24 void init_registers_amd64_linux (void);
26 /* fast tracepoints collect registers. */
29 #define FT_CR_EFLAGS 1
47 static const int x86_64_ft_collect_regmap[] = {
48 FT_CR_RAX * 8, FT_CR_RBX * 8, FT_CR_RCX * 8, FT_CR_RDX * 8,
49 FT_CR_RSI * 8, FT_CR_RDI * 8, FT_CR_RBP * 8, FT_CR_RSP * 8,
50 FT_CR_R8 * 8, FT_CR_R9 * 8, FT_CR_R10 * 8, FT_CR_R11 * 8,
51 FT_CR_R12 * 8, FT_CR_R13 * 8, FT_CR_R14 * 8, FT_CR_R15 * 8,
52 FT_CR_RIP * 8, FT_CR_EFLAGS * 8
55 #define X86_64_NUM_FT_COLLECT_GREGS \
56 (sizeof (x86_64_ft_collect_regmap) / sizeof(x86_64_ft_collect_regmap[0]))
59 supply_fast_tracepoint_registers (struct regcache *regcache,
60 const unsigned char *buf)
64 for (i = 0; i < X86_64_NUM_FT_COLLECT_GREGS; i++)
65 supply_register (regcache, i,
66 ((char *) buf) + x86_64_ft_collect_regmap[i]);
69 ULONGEST __attribute__ ((visibility("default"), used))
70 gdb_agent_get_raw_reg (const unsigned char *raw_regs, int regnum)
72 if (regnum >= X86_64_NUM_FT_COLLECT_GREGS)
75 return *(ULONGEST *) (raw_regs + x86_64_ft_collect_regmap[regnum]);
80 #include <ust/processor.h>
82 /* "struct registers" is the UST object type holding the registers at
83 the time of the static tracepoint marker call. This doesn't
84 contain RIP, but we know what it must have been (the marker
87 #define ST_REGENTRY(REG) \
89 offsetof (struct registers, REG), \
90 sizeof (((struct registers *) NULL)->REG) \
97 } x86_64_st_collect_regmap[] =
121 #define X86_64_NUM_ST_COLLECT_GREGS \
122 (sizeof (x86_64_st_collect_regmap) / sizeof (x86_64_st_collect_regmap[0]))
124 /* GDB's RIP register number. */
125 #define AMD64_RIP_REGNUM 16
128 supply_static_tracepoint_registers (struct regcache *regcache,
129 const unsigned char *buf,
133 unsigned long newpc = pc;
135 supply_register (regcache, AMD64_RIP_REGNUM, &newpc);
137 for (i = 0; i < X86_64_NUM_ST_COLLECT_GREGS; i++)
138 if (x86_64_st_collect_regmap[i].offset != -1)
140 switch (x86_64_st_collect_regmap[i].size)
143 supply_register (regcache, i,
145 + x86_64_st_collect_regmap[i].offset);
150 = * (short *) (((char *) buf)
151 + x86_64_st_collect_regmap[i].offset);
153 supply_register (regcache, i, ®);
157 internal_error (__FILE__, __LINE__,
158 "unhandled register size: %d",
159 x86_64_st_collect_regmap[i].size);
165 #endif /* HAVE_UST */
167 /* This is only needed because reg-i386-linux-lib.o references it. We
168 may use it proper at some point. */
169 const char *gdbserver_xmltarget;
172 initialize_low_tracepoint (void)
174 init_registers_amd64_linux ();