]>
Commit | Line | Data |
---|---|---|
5c66405b | 1 | /* Definitions for AMD x86-64 running Linux-based GNU systems with ELF format. |
d2307a72 | 2 | Copyright (C) 2001, 2002 Free Software Foundation, Inc. |
5c66405b | 3 | Contributed by Jan Hubicka <jh@suse.cz>, based on linux.h. |
4 | ||
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU CC; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #define LINUX_DEFAULT_ELF | |
23 | ||
5c66405b | 24 | #define TARGET_VERSION fprintf (stderr, " (x86-64 Linux/ELF)"); |
25 | ||
493529eb | 26 | #define TARGET_OS_CPP_BUILTINS() \ |
27 | do \ | |
28 | { \ | |
29 | builtin_define_std ("linux"); \ | |
30 | builtin_define_std ("unix"); \ | |
31 | builtin_define ("__gnu_linux__"); \ | |
32 | builtin_define ("__ELF__"); \ | |
33 | builtin_assert ("system=posix"); \ | |
34 | if (flag_pic) \ | |
35 | { \ | |
36 | builtin_define ("__PIC__"); \ | |
37 | builtin_define ("__pic__"); \ | |
38 | } \ | |
39 | } \ | |
40 | while (0) | |
5c66405b | 41 | |
42 | #undef CPP_SPEC | |
493529eb | 43 | #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" |
5c66405b | 44 | |
45 | /* Provide a LINK_SPEC. Here we provide support for the special GCC | |
46 | options -static and -shared, which allow us to link things in one | |
47 | of these three modes by applying the appropriate combinations of | |
48 | options at link-time. | |
49 | ||
50 | When the -shared link option is used a final link is not being | |
51 | done. */ | |
52 | ||
53 | #undef LINK_SPEC | |
147f7b91 | 54 | #define LINK_SPEC "%{!m32:-m elf_x86_64} %{m32:-m elf_i386} \ |
e9390a94 | 55 | %{shared:-shared} \ |
5c66405b | 56 | %{!shared: \ |
57 | %{!static: \ | |
58 | %{rdynamic:-export-dynamic} \ | |
e9390a94 | 59 | %{m32:%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \ |
60 | %{!m32:%{!dynamic-linker:-dynamic-linker /lib64/ld-linux-x86-64.so.2}}} \ | |
61 | %{static:-static}}" | |
5c66405b | 62 | |
e9390a94 | 63 | #undef STARTFILE_SPEC |
64 | #define STARTFILE_SPEC \ | |
147f7b91 | 65 | "%{!shared: \ |
66 | %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \ | |
67 | %{!p:%{profile:gcrt1.o%s} %{!profile:crt1.o%s}}}} \ | |
68 | crti.o%s %{static:crtbeginT.o%s} \ | |
69 | %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}" | |
e9390a94 | 70 | |
71 | #undef ENDFILE_SPEC | |
147f7b91 | 72 | #define ENDFILE_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" |
0e73d519 | 73 | |
b9d4327f | 74 | #define MULTILIB_DEFAULTS { "m64" } |
75 | ||
0e73d519 | 76 | /* Do code reading to identify a signal frame, and set the frame |
b9d4327f | 77 | state data appropriately. See unwind-dw2.c for the structs. |
78 | Don't use this at all if inhibit_libc is used. */ | |
0e73d519 | 79 | |
b9d4327f | 80 | #ifndef inhibit_libc |
0e73d519 | 81 | #ifdef IN_LIBGCC2 |
82 | #include <signal.h> | |
83 | #include <sys/ucontext.h> | |
84 | #endif | |
85 | ||
b9d4327f | 86 | #ifdef __x86_64__ |
0e73d519 | 87 | #define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \ |
88 | do { \ | |
89 | unsigned char *pc_ = (CONTEXT)->ra; \ | |
90 | struct sigcontext *sc_; \ | |
91 | long new_cfa_; \ | |
92 | \ | |
93 | /* movq __NR_rt_sigreturn, %rax ; syscall */ \ | |
94 | if (*(unsigned char *)(pc_+0) == 0x48 \ | |
95 | && *(unsigned long *)(pc_+1) == 0x050f0000000fc0c7) \ | |
96 | { \ | |
97 | struct ucontext *uc_ = (CONTEXT)->cfa; \ | |
98 | sc_ = (struct sigcontext *) &uc_->uc_mcontext; \ | |
99 | } \ | |
100 | else \ | |
101 | break; \ | |
102 | \ | |
103 | new_cfa_ = sc_->rsp; \ | |
104 | (FS)->cfa_how = CFA_REG_OFFSET; \ | |
105 | /* Register 7 is rsp */ \ | |
106 | (FS)->cfa_reg = 7; \ | |
107 | (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \ | |
108 | \ | |
109 | /* The SVR4 register numbering macros aren't usable in libgcc. */ \ | |
110 | (FS)->regs.reg[0].how = REG_SAVED_OFFSET; \ | |
111 | (FS)->regs.reg[0].loc.offset = (long)&sc_->rax - new_cfa_; \ | |
112 | (FS)->regs.reg[1].how = REG_SAVED_OFFSET; \ | |
113 | (FS)->regs.reg[1].loc.offset = (long)&sc_->rbx - new_cfa_; \ | |
114 | (FS)->regs.reg[2].how = REG_SAVED_OFFSET; \ | |
115 | (FS)->regs.reg[2].loc.offset = (long)&sc_->rcx - new_cfa_; \ | |
116 | (FS)->regs.reg[3].how = REG_SAVED_OFFSET; \ | |
117 | (FS)->regs.reg[3].loc.offset = (long)&sc_->rdx - new_cfa_; \ | |
118 | (FS)->regs.reg[4].how = REG_SAVED_OFFSET; \ | |
119 | (FS)->regs.reg[4].loc.offset = (long)&sc_->rbp - new_cfa_; \ | |
120 | (FS)->regs.reg[5].how = REG_SAVED_OFFSET; \ | |
121 | (FS)->regs.reg[5].loc.offset = (long)&sc_->rsi - new_cfa_; \ | |
122 | (FS)->regs.reg[6].how = REG_SAVED_OFFSET; \ | |
123 | (FS)->regs.reg[6].loc.offset = (long)&sc_->rdi - new_cfa_; \ | |
124 | (FS)->regs.reg[8].how = REG_SAVED_OFFSET; \ | |
125 | (FS)->regs.reg[8].loc.offset = (long)&sc_->r8 - new_cfa_; \ | |
126 | (FS)->regs.reg[9].how = REG_SAVED_OFFSET; \ | |
127 | (FS)->regs.reg[9].loc.offset = (long)&sc_->r9 - new_cfa_; \ | |
128 | (FS)->regs.reg[10].how = REG_SAVED_OFFSET; \ | |
129 | (FS)->regs.reg[10].loc.offset = (long)&sc_->r10 - new_cfa_; \ | |
130 | (FS)->regs.reg[11].how = REG_SAVED_OFFSET; \ | |
131 | (FS)->regs.reg[11].loc.offset = (long)&sc_->r11 - new_cfa_; \ | |
132 | (FS)->regs.reg[12].how = REG_SAVED_OFFSET; \ | |
133 | (FS)->regs.reg[12].loc.offset = (long)&sc_->r12 - new_cfa_; \ | |
134 | (FS)->regs.reg[13].how = REG_SAVED_OFFSET; \ | |
135 | (FS)->regs.reg[13].loc.offset = (long)&sc_->r13 - new_cfa_; \ | |
136 | (FS)->regs.reg[14].how = REG_SAVED_OFFSET; \ | |
137 | (FS)->regs.reg[14].loc.offset = (long)&sc_->r14 - new_cfa_; \ | |
138 | (FS)->regs.reg[15].how = REG_SAVED_OFFSET; \ | |
139 | (FS)->regs.reg[15].loc.offset = (long)&sc_->r15 - new_cfa_; \ | |
140 | (FS)->retaddr_column = 16; \ | |
141 | goto SUCCESS; \ | |
142 | } while (0) | |
b9d4327f | 143 | #else /* ifdef __x86_64__ */ |
144 | #define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \ | |
145 | do { \ | |
146 | unsigned char *pc_ = (CONTEXT)->ra; \ | |
147 | struct sigcontext *sc_; \ | |
148 | long new_cfa_; \ | |
149 | \ | |
150 | /* popl %eax ; movl $__NR_sigreturn,%eax ; int $0x80 */ \ | |
151 | if (*(unsigned short *)(pc_+0) == 0xb858 \ | |
152 | && *(unsigned int *)(pc_+2) == 119 \ | |
153 | && *(unsigned short *)(pc_+6) == 0x80cd) \ | |
154 | sc_ = (CONTEXT)->cfa + 4; \ | |
155 | /* movl $__NR_rt_sigreturn,%eax ; int $0x80 */ \ | |
156 | else if (*(unsigned char *)(pc_+0) == 0xb8 \ | |
157 | && *(unsigned int *)(pc_+1) == 173 \ | |
158 | && *(unsigned short *)(pc_+5) == 0x80cd) \ | |
159 | { \ | |
160 | struct rt_sigframe { \ | |
161 | int sig; \ | |
162 | struct siginfo *pinfo; \ | |
163 | void *puc; \ | |
164 | struct siginfo info; \ | |
165 | struct ucontext uc; \ | |
166 | } *rt_ = (CONTEXT)->cfa; \ | |
167 | sc_ = (struct sigcontext *) &rt_->uc.uc_mcontext; \ | |
168 | } \ | |
169 | else \ | |
170 | break; \ | |
171 | \ | |
172 | new_cfa_ = sc_->esp; \ | |
173 | (FS)->cfa_how = CFA_REG_OFFSET; \ | |
174 | (FS)->cfa_reg = 4; \ | |
175 | (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \ | |
176 | \ | |
177 | /* The SVR4 register numbering macros aren't usable in libgcc. */ \ | |
178 | (FS)->regs.reg[0].how = REG_SAVED_OFFSET; \ | |
179 | (FS)->regs.reg[0].loc.offset = (long)&sc_->eax - new_cfa_; \ | |
180 | (FS)->regs.reg[3].how = REG_SAVED_OFFSET; \ | |
181 | (FS)->regs.reg[3].loc.offset = (long)&sc_->ebx - new_cfa_; \ | |
182 | (FS)->regs.reg[1].how = REG_SAVED_OFFSET; \ | |
183 | (FS)->regs.reg[1].loc.offset = (long)&sc_->ecx - new_cfa_; \ | |
184 | (FS)->regs.reg[2].how = REG_SAVED_OFFSET; \ | |
185 | (FS)->regs.reg[2].loc.offset = (long)&sc_->edx - new_cfa_; \ | |
186 | (FS)->regs.reg[6].how = REG_SAVED_OFFSET; \ | |
187 | (FS)->regs.reg[6].loc.offset = (long)&sc_->esi - new_cfa_; \ | |
188 | (FS)->regs.reg[7].how = REG_SAVED_OFFSET; \ | |
189 | (FS)->regs.reg[7].loc.offset = (long)&sc_->edi - new_cfa_; \ | |
190 | (FS)->regs.reg[5].how = REG_SAVED_OFFSET; \ | |
191 | (FS)->regs.reg[5].loc.offset = (long)&sc_->ebp - new_cfa_; \ | |
192 | (FS)->regs.reg[8].how = REG_SAVED_OFFSET; \ | |
193 | (FS)->regs.reg[8].loc.offset = (long)&sc_->eip - new_cfa_; \ | |
194 | (FS)->retaddr_column = 8; \ | |
195 | goto SUCCESS; \ | |
196 | } while (0) | |
197 | #endif /* ifdef __x86_64__ */ | |
198 | #endif /* ifdef inhibit_libc */ |