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c714f03d RH |
1 | /* Definitions of target machine for GNU compiler, |
2 | for Alpha Linux-based GNU systems. | |
24a57808 JM |
3 | Copyright (C) 1996, 1997, 1998, 2002, 2003, 2004, 2005, 2006, 2007, 2009, |
4 | 2010 Free Software Foundation, Inc. | |
c714f03d | 5 | Contributed by Richard Henderson. |
ff352cea | 6 | |
7ec022b2 | 7 | This file is part of GCC. |
ff352cea | 8 | |
7ec022b2 | 9 | GCC is free software; you can redistribute it and/or modify |
ff352cea | 10 | it under the terms of the GNU General Public License as published by |
2f83c7d6 | 11 | the Free Software Foundation; either version 3, or (at your option) |
ff352cea RK |
12 | any later version. |
13 | ||
7ec022b2 | 14 | GCC is distributed in the hope that it will be useful, |
ff352cea RK |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
2f83c7d6 NC |
20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
ff352cea RK |
22 | |
23 | #undef TARGET_DEFAULT | |
8bea7f7c | 24 | #define TARGET_DEFAULT (MASK_FPREGS | MASK_GAS) |
ff352cea | 25 | |
12a41c22 NB |
26 | #define TARGET_OS_CPP_BUILTINS() \ |
27 | do { \ | |
28 | builtin_define ("__gnu_linux__"); \ | |
29 | builtin_define ("_LONGLONG"); \ | |
30 | builtin_define_std ("linux"); \ | |
31 | builtin_define_std ("unix"); \ | |
32 | builtin_assert ("system=linux"); \ | |
26b0ad13 KG |
33 | builtin_assert ("system=unix"); \ |
34 | builtin_assert ("system=posix"); \ | |
e0322d5c | 35 | /* The GNU C++ standard library requires this. */ \ |
04df6730 | 36 | if (c_dialect_cxx ()) \ |
e0322d5c | 37 | builtin_define ("_GNU_SOURCE"); \ |
12a41c22 | 38 | } while (0) |
ff352cea RK |
39 | |
40 | #undef LIB_SPEC | |
dbe0297b | 41 | #define LIB_SPEC \ |
17772b2a JJ |
42 | "%{pthread:-lpthread} \ |
43 | %{shared:-lc} \ | |
44 | %{!shared: %{profile:-lc_p}%{!profile:-lc}}" | |
ff352cea | 45 | |
f326fd7a | 46 | #undef CPP_SPEC |
bdede2ac MK |
47 | #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" |
48 | ||
ff352cea | 49 | /* Show that we need a GP when profiling. */ |
4f1c5cce | 50 | #undef TARGET_PROFILING_NEEDS_GP |
9c0e94a5 RH |
51 | #define TARGET_PROFILING_NEEDS_GP 1 |
52 | ||
53 | /* Don't care about faults in the prologue. */ | |
54 | #undef TARGET_CAN_FAULT_IN_PROLOGUE | |
55 | #define TARGET_CAN_FAULT_IN_PROLOGUE 1 | |
4ed442c9 | 56 | |
14291bc7 RH |
57 | /* OS fixes up EV5 data fault on prefetch. */ |
58 | #undef TARGET_FIXUP_EV5_PREFETCH | |
59 | #define TARGET_FIXUP_EV5_PREFETCH 1 | |
60 | ||
4ed442c9 BK |
61 | #undef WCHAR_TYPE |
62 | #define WCHAR_TYPE "int" | |
377b6fce | 63 | |
47089d42 MK |
64 | #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
65 | ||
a4d05547 | 66 | /* Determine whether the entire c99 runtime is present in the |
09b568fc | 67 | runtime library. */ |
7bd85ce0 | 68 | #define TARGET_C99_FUNCTIONS (OPTION_GLIBC) |
09b568fc | 69 | |
006339cd RG |
70 | /* Whether we have sincos that follows the GNU extension. */ |
71 | #define TARGET_HAS_SINCOS (OPTION_GLIBC) | |
72 | ||
4969c0d8 | 73 | #define TARGET_POSIX_IO |
90b8be73 | 74 | |
42df2193 JJ |
75 | #define LINK_GCC_C_SEQUENCE_SPEC \ |
76 | "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" | |
77 | ||
8efcd34f AM |
78 | /* Use --as-needed -lgcc_s for eh support. */ |
79 | #ifdef HAVE_LD_AS_NEEDED | |
80 | #define USE_LD_AS_NEEDED 1 | |
81 | #endif | |
82 | ||
8662eb14 | 83 | #define MD_UNWIND_SUPPORT "config/alpha/linux-unwind.h" |
7269aee7 AH |
84 | |
85 | /* Define if long doubles should be mangled as 'g'. */ | |
86 | #define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING | |
d94a427e AL |
87 | |
88 | /* -mcpu=native handling only makes sense with compiler running on | |
89 | an Alpha chip. */ | |
90 | #if defined(__alpha__) || defined(__alpha) | |
91 | extern const char *host_detect_local_cpu (int argc, const char **argv); | |
92 | # define EXTRA_SPEC_FUNCTIONS \ | |
93 | { "local_cpu_detect", host_detect_local_cpu }, | |
94 | ||
95 | # define MCPU_MTUNE_NATIVE_SPECS \ | |
96 | " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \ | |
97 | " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}" | |
98 | #else | |
99 | # define MCPU_MTUNE_NATIVE_SPECS "" | |
100 | #endif | |
101 | ||
102 | #define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS |