diff options
Diffstat (limited to 'libc/sysdeps/linux')
| -rw-r--r-- | libc/sysdeps/linux/common/sysdep.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/sysdep.h b/libc/sysdeps/linux/common/sysdep.h new file mode 100644 index 000000000..cd5b2f1e3 --- /dev/null +++ b/libc/sysdeps/linux/common/sysdep.h @@ -0,0 +1,139 @@ +/* Generic asm macros used on many machines. + Copyright (C) 1991,92,93,96,98,2002,2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sys/syscall.h> + +#ifndef C_LABEL + +/* Define a macro we can use to construct the asm name for a C symbol. */ +#ifndef __UCLIBC_UNDERSCORES__ +#ifdef __STDC__ +#define C_LABEL(name) name##: +#else +#define C_LABEL(name) name/**/: +#endif +#else +#ifdef __STDC__ +#define C_LABEL(name) _##name##: +#else +#define C_LABEL(name) _/**/name/**/: +#endif +#endif + +#endif + +#ifdef __ASSEMBLER__ +/* Mark the end of function named SYM. This is used on some platforms + to generate correct debugging information. */ +#ifndef END +#define END(sym) +#endif + +#ifndef JUMPTARGET +#define JUMPTARGET(sym) sym +#endif + +/* Macros to generate eh_frame unwind information. */ +# ifdef HAVE_ASM_CFI_DIRECTIVES +# define cfi_startproc .cfi_startproc +# define cfi_endproc .cfi_endproc +# define cfi_def_cfa(reg, off) .cfi_def_cfa reg, off +# define cfi_def_cfa_register(reg) .cfi_def_cfa_register reg +# define cfi_def_cfa_offset(off) .cfi_def_cfa_offset off +# define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off +# define cfi_offset(reg, off) .cfi_offset reg, off +# define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off +# define cfi_register(r1, r2) .cfi_register r1, r2 +# define cfi_return_column(reg) .cfi_return_column reg +# define cfi_restore(reg) .cfi_restore reg +# define cfi_same_value(reg) .cfi_same_value reg +# define cfi_undefined(reg) .cfi_undefined reg +# define cfi_remember_state .cfi_remember_state +# define cfi_restore_state .cfi_restore_state +# define cfi_window_save .cfi_window_save +# else +# define cfi_startproc +# define cfi_endproc +# define cfi_def_cfa(reg, off) +# define cfi_def_cfa_register(reg) +# define cfi_def_cfa_offset(off) +# define cfi_adjust_cfa_offset(off) +# define cfi_offset(reg, off) +# define cfi_rel_offset(reg, off) +# define cfi_register(r1, r2) +# define cfi_return_column(reg) +# define cfi_restore(reg) +# define cfi_same_value(reg) +# define cfi_undefined(reg) +# define cfi_remember_state +# define cfi_restore_state +# define cfi_window_save +# endif + +#else /* ! ASSEMBLER */ +# ifdef HAVE_ASM_CFI_DIRECTIVES +# define CFI_STRINGIFY(Name) CFI_STRINGIFY2 (Name) +# define CFI_STRINGIFY2(Name) #Name +# define CFI_STARTPROC ".cfi_startproc" +# define CFI_ENDPROC ".cfi_endproc" +# define CFI_DEF_CFA(reg, off) \ + ".cfi_def_cfa " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off) +# define CFI_DEF_CFA_REGISTER(reg) \ + ".cfi_def_cfa_register " CFI_STRINGIFY(reg) +# define CFI_DEF_CFA_OFFSET(off) \ + ".cfi_def_cfa_offset " CFI_STRINGIFY(off) +# define CFI_ADJUST_CFA_OFFSET(off) \ + ".cfi_adjust_cfa_offset " CFI_STRINGIFY(off) +# define CFI_OFFSET(reg, off) \ + ".cfi_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off) +# define CFI_REL_OFFSET(reg, off) \ + ".cfi_rel_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off) +# define CFI_REGISTER(r1, r2) \ + ".cfi_register " CFI_STRINGIFY(r1) "," CFI_STRINGIFY(r2) +# define CFI_RETURN_COLUMN(reg) \ + ".cfi_return_column " CFI_STRINGIFY(reg) +# define CFI_RESTORE(reg) \ + ".cfi_restore " CFI_STRINGIFY(reg) +# define CFI_UNDEFINED(reg) \ + ".cfi_undefined " CFI_STRINGIFY(reg) +# define CFI_REMEMBER_STATE \ + ".cfi_remember_state" +# define CFI_RESTORE_STATE \ + ".cfi_restore_state" +# define CFI_WINDOW_SAVE \ + ".cfi_window_save" +# else +# define CFI_STARTPROC +# define CFI_ENDPROC +# define CFI_DEF_CFA(reg, off) +# define CFI_DEF_CFA_REGISTER(reg) +# define CFI_DEF_CFA_OFFSET(off) +# define CFI_ADJUST_CFA_OFFSET(off) +# define CFI_OFFSET(reg, off) +# define CFI_REL_OFFSET(reg, off) +# define CFI_REGISTER(r1, r2) +# define CFI_RETURN_COLUMN(reg) +# define CFI_RESTORE(reg) +# define CFI_UNDEFINED(reg) +# define CFI_REMEMBER_STATE +# define CFI_RESTORE_STATE +# define CFI_WINDOW_SAVE +# endif + +#endif /* __ASSEMBLER__ */ |