/* 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_sections(sect...) .cfi_sections sect # 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 # define cfi_personality(enc, exp) .cfi_personality enc, exp # define cfi_lsda(enc, exp) .cfi_lsda enc, exp # else # define cfi_sections(sect...) # 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 # define cfi_personality(enc, exp) # define cfi_lsda(enc, exp) # endif #else /* ! ASSEMBLER */ # ifdef HAVE_ASM_CFI_DIRECTIVES # define CFI_STRINGIFY(Name) CFI_STRINGIFY2 (Name) # define CFI_STRINGIFY2(Name) #Name # define CFI_SECTIONS(sect...) \ ".cfi_sections " CFI_STRINGIFY(sect) # 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" # define CFI_PERSONALITY(enc, exp) \ ".cfi_personality " CFI_STRINGIFY(enc) "," CFI_STRINGIFY(exp) # define CFI_LSDA(enc, exp) \ ".cfi_lsda " CFI_STRINGIFY(enc) "," CFI_STRINGIFY(exp) # else # define CFI_SECTIONS(sect...) # 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 # define CFI_PERSONALITY(enc, exp) # define CFI_LSDA(enc, exp) # endif #endif /* __ASSEMBLER__ */ /* Values used for encoding parameter of cfi_personality and cfi_lsda. */ #define DW_EH_PE_absptr 0x00 #define DW_EH_PE_omit 0xff #define DW_EH_PE_uleb128 0x01 #define DW_EH_PE_udata2 0x02 #define DW_EH_PE_udata4 0x03 #define DW_EH_PE_udata8 0x04 #define DW_EH_PE_sleb128 0x09 #define DW_EH_PE_sdata2 0x0a #define DW_EH_PE_sdata4 0x0b #define DW_EH_PE_sdata8 0x0c #define DW_EH_PE_signed 0x08 #define DW_EH_PE_pcrel 0x10 #define DW_EH_PE_textrel 0x20 #define DW_EH_PE_datarel 0x30 #define DW_EH_PE_funcrel 0x40 #define DW_EH_PE_aligned 0x50 #define DW_EH_PE_indirect 0x80