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96297568 | 1 | /* Definitions of target machine for GNU compiler, |
2 | for Alpha Linux-based GNU systems. | |
f1717362 | 3 | Copyright (C) 1996-2016 Free Software Foundation, Inc. |
96297568 | 4 | Contributed by Richard Henderson. |
b8cfc4f5 | 5 | |
187b36cf | 6 | This file is part of GCC. |
b8cfc4f5 | 7 | |
187b36cf | 8 | GCC is free software; you can redistribute it and/or modify |
b8cfc4f5 | 9 | it under the terms of the GNU General Public License as published by |
038d1e19 | 10 | the Free Software Foundation; either version 3, or (at your option) |
b8cfc4f5 | 11 | any later version. |
12 | ||
187b36cf | 13 | GCC is distributed in the hope that it will be useful, |
b8cfc4f5 | 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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
038d1e19 | 19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
b8cfc4f5 | 21 | |
36a259fd | 22 | #define TARGET_OS_CPP_BUILTINS() \ |
23 | do { \ | |
24 | builtin_define ("__gnu_linux__"); \ | |
25 | builtin_define ("_LONGLONG"); \ | |
26 | builtin_define_std ("linux"); \ | |
27 | builtin_define_std ("unix"); \ | |
28 | builtin_assert ("system=linux"); \ | |
bcc76966 | 29 | builtin_assert ("system=unix"); \ |
30 | builtin_assert ("system=posix"); \ | |
08eedad6 | 31 | /* The GNU C++ standard library requires this. */ \ |
71c97472 | 32 | if (c_dialect_cxx ()) \ |
08eedad6 | 33 | builtin_define ("_GNU_SOURCE"); \ |
36a259fd | 34 | } while (0) |
b8cfc4f5 | 35 | |
36 | #undef LIB_SPEC | |
d83b3ef0 | 37 | #define LIB_SPEC \ |
ec5fe4f6 | 38 | "%{pthread:-lpthread} \ |
39 | %{shared:-lc} \ | |
40 | %{!shared: %{profile:-lc_p}%{!profile:-lc}}" | |
b8cfc4f5 | 41 | |
a2a5e014 | 42 | #undef CPP_SPEC |
fc7dfeb9 | 43 | #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" |
44 | ||
b8cfc4f5 | 45 | /* Show that we need a GP when profiling. */ |
30dceb30 | 46 | #undef TARGET_PROFILING_NEEDS_GP |
b9a5aa8e | 47 | #define TARGET_PROFILING_NEEDS_GP 1 |
48 | ||
49 | /* Don't care about faults in the prologue. */ | |
50 | #undef TARGET_CAN_FAULT_IN_PROLOGUE | |
51 | #define TARGET_CAN_FAULT_IN_PROLOGUE 1 | |
9a3f437f | 52 | |
8952c876 | 53 | /* OS fixes up EV5 data fault on prefetch. */ |
54 | #undef TARGET_FIXUP_EV5_PREFETCH | |
55 | #define TARGET_FIXUP_EV5_PREFETCH 1 | |
56 | ||
9a3f437f | 57 | #undef WCHAR_TYPE |
58 | #define WCHAR_TYPE "int" | |
b38908c1 | 59 | |
d9993a19 | 60 | #ifdef SINGLE_LIBC |
61 | #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC) | |
981702f2 | 62 | #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC) |
63 | #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC) | |
f2d678af | 64 | #undef OPTION_MUSL |
65 | #define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL) | |
d9993a19 | 66 | #else |
c923aba8 | 67 | #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
981702f2 | 68 | #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC) |
69 | #define OPTION_BIONIC (linux_libc == LIBC_BIONIC) | |
f2d678af | 70 | #undef OPTION_MUSL |
71 | #define OPTION_MUSL (linux_libc == LIBC_MUSL) | |
d9993a19 | 72 | #endif |
c923aba8 | 73 | |
30f690e0 | 74 | /* Determine what functions are present at the runtime; |
75 | this includes full c99 runtime and sincos. */ | |
76 | #undef TARGET_LIBC_HAS_FUNCTION | |
0cc3ad67 | 77 | #define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function |
164951a6 | 78 | |
6073aca2 | 79 | #define TARGET_POSIX_IO |
08684909 | 80 | |
f9d6db02 | 81 | #define LINK_GCC_C_SEQUENCE_SPEC \ |
82 | "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" | |
83 | ||
be4e8b82 | 84 | /* Use --as-needed -lgcc_s for eh support. */ |
85 | #ifdef HAVE_LD_AS_NEEDED | |
86 | #define USE_LD_AS_NEEDED 1 | |
87 | #endif | |
88 | ||
4257b08a | 89 | /* Define if long doubles should be mangled as 'g'. */ |
90 | #define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING | |
68ecbaec | 91 | |
92 | /* -mcpu=native handling only makes sense with compiler running on | |
93 | an Alpha chip. */ | |
94 | #if defined(__alpha__) || defined(__alpha) | |
95 | extern const char *host_detect_local_cpu (int argc, const char **argv); | |
96 | # define EXTRA_SPEC_FUNCTIONS \ | |
97 | { "local_cpu_detect", host_detect_local_cpu }, | |
98 | ||
99 | # define MCPU_MTUNE_NATIVE_SPECS \ | |
100 | " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \ | |
101 | " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}" | |
102 | #else | |
103 | # define MCPU_MTUNE_NATIVE_SPECS "" | |
104 | #endif | |
105 | ||
106 | #define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS |