1 /* Generic asm macros used on many machines.
2 Copyright (C) 1991,92,93,96,98,2002,2003 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 #include <sys/syscall.h>
24 /* Define a macro we can use to construct the asm name for a C symbol. */
25 #ifndef __UCLIBC_UNDERSCORES__
27 #define C_LABEL(name) name##:
29 #define C_LABEL(name) name/**/:
33 #define C_LABEL(name) _##name##:
35 #define C_LABEL(name) _/**/name/**/:
42 /* Mark the end of function named SYM. This is used on some platforms
43 to generate correct debugging information. */
49 #define JUMPTARGET(sym) sym
52 /* Macros to generate eh_frame unwind information. */
53 # ifdef HAVE_ASM_CFI_DIRECTIVES
54 # define cfi_startproc .cfi_startproc
55 # define cfi_endproc .cfi_endproc
56 # define cfi_def_cfa(reg, off) .cfi_def_cfa reg, off
57 # define cfi_def_cfa_register(reg) .cfi_def_cfa_register reg
58 # define cfi_def_cfa_offset(off) .cfi_def_cfa_offset off
59 # define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
60 # define cfi_offset(reg, off) .cfi_offset reg, off
61 # define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
62 # define cfi_register(r1, r2) .cfi_register r1, r2
63 # define cfi_return_column(reg) .cfi_return_column reg
64 # define cfi_restore(reg) .cfi_restore reg
65 # define cfi_same_value(reg) .cfi_same_value reg
66 # define cfi_undefined(reg) .cfi_undefined reg
67 # define cfi_remember_state .cfi_remember_state
68 # define cfi_restore_state .cfi_restore_state
69 # define cfi_window_save .cfi_window_save
71 # define cfi_startproc
73 # define cfi_def_cfa(reg, off)
74 # define cfi_def_cfa_register(reg)
75 # define cfi_def_cfa_offset(off)
76 # define cfi_adjust_cfa_offset(off)
77 # define cfi_offset(reg, off)
78 # define cfi_rel_offset(reg, off)
79 # define cfi_register(r1, r2)
80 # define cfi_return_column(reg)
81 # define cfi_restore(reg)
82 # define cfi_same_value(reg)
83 # define cfi_undefined(reg)
84 # define cfi_remember_state
85 # define cfi_restore_state
86 # define cfi_window_save
89 #else /* ! ASSEMBLER */
90 # ifdef HAVE_ASM_CFI_DIRECTIVES
91 # define CFI_STRINGIFY(Name) CFI_STRINGIFY2 (Name)
92 # define CFI_STRINGIFY2(Name) #Name
93 # define CFI_STARTPROC ".cfi_startproc"
94 # define CFI_ENDPROC ".cfi_endproc"
95 # define CFI_DEF_CFA(reg, off) \
96 ".cfi_def_cfa " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
97 # define CFI_DEF_CFA_REGISTER(reg) \
98 ".cfi_def_cfa_register " CFI_STRINGIFY(reg)
99 # define CFI_DEF_CFA_OFFSET(off) \
100 ".cfi_def_cfa_offset " CFI_STRINGIFY(off)
101 # define CFI_ADJUST_CFA_OFFSET(off) \
102 ".cfi_adjust_cfa_offset " CFI_STRINGIFY(off)
103 # define CFI_OFFSET(reg, off) \
104 ".cfi_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
105 # define CFI_REL_OFFSET(reg, off) \
106 ".cfi_rel_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
107 # define CFI_REGISTER(r1, r2) \
108 ".cfi_register " CFI_STRINGIFY(r1) "," CFI_STRINGIFY(r2)
109 # define CFI_RETURN_COLUMN(reg) \
110 ".cfi_return_column " CFI_STRINGIFY(reg)
111 # define CFI_RESTORE(reg) \
112 ".cfi_restore " CFI_STRINGIFY(reg)
113 # define CFI_UNDEFINED(reg) \
114 ".cfi_undefined " CFI_STRINGIFY(reg)
115 # define CFI_REMEMBER_STATE \
116 ".cfi_remember_state"
117 # define CFI_RESTORE_STATE \
119 # define CFI_WINDOW_SAVE \
122 # define CFI_STARTPROC
124 # define CFI_DEF_CFA(reg, off)
125 # define CFI_DEF_CFA_REGISTER(reg)
126 # define CFI_DEF_CFA_OFFSET(off)
127 # define CFI_ADJUST_CFA_OFFSET(off)
128 # define CFI_OFFSET(reg, off)
129 # define CFI_REL_OFFSET(reg, off)
130 # define CFI_REGISTER(r1, r2)
131 # define CFI_RETURN_COLUMN(reg)
132 # define CFI_RESTORE(reg)
133 # define CFI_UNDEFINED(reg)
134 # define CFI_REMEMBER_STATE
135 # define CFI_RESTORE_STATE
136 # define CFI_WINDOW_SAVE
139 #endif /* __ASSEMBLER__ */