diff options
Diffstat (limited to 'gas/config/tc-m68k.c')
-rw-r--r-- | gas/config/tc-m68k.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/gas/config/tc-m68k.c b/gas/config/tc-m68k.c index d913dc6..2c213c6 100644 --- a/gas/config/tc-m68k.c +++ b/gas/config/tc-m68k.c @@ -1,6 +1,6 @@ /* tc-m68k.c -- Assemble for the m68k family Copyright 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002 + 2000, 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. @@ -25,6 +25,7 @@ #include "obstack.h" #include "subsegs.h" #include "dwarf2dbg.h" +#include "dw2gencfi.h" #include "opcode/m68k.h" #include "m68k-parse.h" @@ -7146,3 +7147,34 @@ m68k_elf_final_processing () elf_elfheader (stdoutput)->e_flags |= EF_M68000; } #endif + +int +tc_m68k_regname_to_dw2regnum (const char *regname) +{ + unsigned int regnum; + static const char *const regnames[] = + { + "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", + "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp", + "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", + "pc" + }; + + for (regnum = 0; regnum < ARRAY_SIZE (regnames); regnum++) + if (strcmp (regname, regnames[regnum]) == 0) + return regnum; + + return -1; +} + +void +tc_m68k_frame_initial_instructions (void) +{ + static int sp_regno = -1; + + if (sp_regno < 0) + sp_regno = tc_m68k_regname_to_dw2regnum ("sp"); + + cfi_add_CFA_def_cfa (sp_regno, -DWARF2_CIE_DATA_ALIGNMENT); + cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT); +} |