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Diffstat (limited to 'include/asm-xtensa/xtensa/simcall.h')
-rw-r--r-- | include/asm-xtensa/xtensa/simcall.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/include/asm-xtensa/xtensa/simcall.h b/include/asm-xtensa/xtensa/simcall.h new file mode 100644 index 000000000000..a2b868929a49 --- /dev/null +++ b/include/asm-xtensa/xtensa/simcall.h | |||
@@ -0,0 +1,130 @@ | |||
1 | #ifndef SIMCALL_INCLUDED | ||
2 | #define SIMCALL_INCLUDED | ||
3 | |||
4 | /* | ||
5 | * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND | ||
6 | * | ||
7 | * include/asm-xtensa/xtensa/simcall.h - Simulator call numbers | ||
8 | * | ||
9 | * This file is subject to the terms and conditions of the GNU General | ||
10 | * Public License. See the file "COPYING" in the main directory of | ||
11 | * this archive for more details. | ||
12 | * | ||
13 | * Copyright (C) 2002 Tensilica Inc. | ||
14 | */ | ||
15 | |||
16 | |||
17 | /* | ||
18 | * System call like services offered by the simulator host. | ||
19 | * These are modeled after the Linux 2.4 kernel system calls | ||
20 | * for Xtensa processors. However not all system calls and | ||
21 | * not all functionality of a given system call are implemented, | ||
22 | * or necessarily have well defined or equivalent semantics in | ||
23 | * the context of a simulation (as opposed to a Unix kernel). | ||
24 | * | ||
25 | * These services behave largely as if they had been invoked | ||
26 | * as a task in the simulator host's operating system | ||
27 | * (eg. files accessed are those of the simulator host). | ||
28 | * However, these SIMCALLs model a virtual operating system | ||
29 | * so that various definitions, bit assignments etc | ||
30 | * (eg. open mode bits, errno values, etc) are independent | ||
31 | * of the host operating system used to run the simulation. | ||
32 | * Rather these definitions are specific to the Xtensa ISS. | ||
33 | * This way Xtensa ISA code written to use these SIMCALLs | ||
34 | * can (in principle) be simulated on any host. | ||
35 | * | ||
36 | * Up to 6 parameters are passed in registers a3 to a8 | ||
37 | * (note the 6th parameter isn't passed on the stack, | ||
38 | * unlike windowed function calling conventions). | ||
39 | * The return value is in a2. A negative value in the | ||
40 | * range -4096 to -1 indicates a negated error code to be | ||
41 | * reported in errno with a return value of -1, otherwise | ||
42 | * the value in a2 is returned as is. | ||
43 | */ | ||
44 | |||
45 | /* These #defines need to match what's in Xtensa/OS/vxworks/xtiss/simcalls.c */ | ||
46 | |||
47 | #define SYS_nop 0 /* n/a - setup; used to flush register windows */ | ||
48 | #define SYS_exit 1 /*x*/ | ||
49 | #define SYS_fork 2 | ||
50 | #define SYS_read 3 /*x*/ | ||
51 | #define SYS_write 4 /*x*/ | ||
52 | #define SYS_open 5 /*x*/ | ||
53 | #define SYS_close 6 /*x*/ | ||
54 | #define SYS_rename 7 /*x 38 - waitpid */ | ||
55 | #define SYS_creat 8 /*x*/ | ||
56 | #define SYS_link 9 /*x (not implemented on WIN32) */ | ||
57 | #define SYS_unlink 10 /*x*/ | ||
58 | #define SYS_execv 11 /* n/a - execve */ | ||
59 | #define SYS_execve 12 /* 11 - chdir */ | ||
60 | #define SYS_pipe 13 /* 42 - time */ | ||
61 | #define SYS_stat 14 /* 106 - mknod */ | ||
62 | #define SYS_chmod 15 | ||
63 | #define SYS_chown 16 /* 202 - lchown */ | ||
64 | #define SYS_utime 17 /* 30 - break */ | ||
65 | #define SYS_wait 18 /* n/a - oldstat */ | ||
66 | #define SYS_lseek 19 /*x*/ | ||
67 | #define SYS_getpid 20 | ||
68 | #define SYS_isatty 21 /* n/a - mount */ | ||
69 | #define SYS_fstat 22 /* 108 - oldumount */ | ||
70 | #define SYS_time 23 /* 13 - setuid */ | ||
71 | #define SYS_gettimeofday 24 /*x 78 - getuid (not implemented on WIN32) */ | ||
72 | #define SYS_times 25 /*X 43 - stime (Xtensa-specific implementation) */ | ||
73 | #define SYS_socket 26 | ||
74 | #define SYS_sendto 27 | ||
75 | #define SYS_recvfrom 28 | ||
76 | #define SYS_select_one 29 /* not compitible select, one file descriptor at the time */ | ||
77 | #define SYS_bind 30 | ||
78 | #define SYS_ioctl 31 | ||
79 | |||
80 | /* | ||
81 | * Other... | ||
82 | */ | ||
83 | #define SYS_iss_argc 1000 /* returns value of argc */ | ||
84 | #define SYS_iss_argv_size 1001 /* bytes needed for argv & arg strings */ | ||
85 | #define SYS_iss_set_argv 1002 /* saves argv & arg strings at given addr */ | ||
86 | |||
87 | /* | ||
88 | * SIMCALLs for the ferret memory debugger. All are invoked by | ||
89 | * libferret.a ... ( Xtensa/Target-Libs/ferret ) | ||
90 | */ | ||
91 | #define SYS_ferret 1010 | ||
92 | #define SYS_malloc 1011 | ||
93 | #define SYS_free 1012 | ||
94 | #define SYS_more_heap 1013 | ||
95 | #define SYS_no_heap 1014 | ||
96 | |||
97 | |||
98 | /* | ||
99 | * Extra SIMCALLs for GDB: | ||
100 | */ | ||
101 | #define SYS_gdb_break -1 /* invoked by XTOS on user exceptions if EPC points | ||
102 | to a break.n/break, regardless of cause! */ | ||
103 | #define SYS_xmon_out -2 /* invoked by XMON: ... */ | ||
104 | #define SYS_xmon_in -3 /* invoked by XMON: ... */ | ||
105 | #define SYS_xmon_flush -4 /* invoked by XMON: ... */ | ||
106 | #define SYS_gdb_abort -5 /* invoked by XTOS in _xtos_panic() */ | ||
107 | #define SYS_gdb_illegal_inst -6 /* invoked by XTOS for illegal instructions (too deeply) */ | ||
108 | #define SYS_xmon_init -7 /* invoked by XMON: ... */ | ||
109 | #define SYS_gdb_enter_sktloop -8 /* invoked by XTOS on debug exceptions */ | ||
110 | |||
111 | /* | ||
112 | * SIMCALLs for vxWorks xtiss BSP: | ||
113 | */ | ||
114 | #define SYS_setup_ppp_pipes -83 | ||
115 | #define SYS_log_msg -84 | ||
116 | |||
117 | /* | ||
118 | * Test SIMCALLs: | ||
119 | */ | ||
120 | #define SYS_test_write_state -100 | ||
121 | #define SYS_test_read_state -101 | ||
122 | |||
123 | /* | ||
124 | * SYS_select_one specifiers | ||
125 | */ | ||
126 | #define XTISS_SELECT_ONE_READ 1 | ||
127 | #define XTISS_SELECT_ONE_WRITE 2 | ||
128 | #define XTISS_SELECT_ONE_EXCEPT 3 | ||
129 | |||
130 | #endif /* !SIMCALL_INCLUDED */ | ||