diff options
Diffstat (limited to 'gdb/tm-mips.h')
| -rw-r--r-- | gdb/tm-mips.h | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/gdb/tm-mips.h b/gdb/tm-mips.h index 0075662..9096b06 100644 --- a/gdb/tm-mips.h +++ b/gdb/tm-mips.h @@ -34,6 +34,11 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Floating point is IEEE compliant */ #define IEEE_FLOAT +/* Some MIPS boards are provided both with and without a floating + point coprocessor; we provide a user settable variable to tell gdb + whether there is one or not. */ +extern int mips_fpu; + /* Define this if the C compiler puts an underscore at the front of external names before giving them to the linker. */ @@ -205,13 +210,13 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ into VALBUF. XXX floats */ #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - bcopy (REGBUF+REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE)) + bcopy (REGBUF + REGISTER_BYTE ((TYPE_CODE (TYPE) == TYPE_CODE_FLT && mips_fpu) ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE)) /* Write into appropriate registers a function return value of type TYPE, given in virtual format. */ #define STORE_RETURN_VALUE(TYPE,VALBUF) \ - write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE)) + write_register_bytes (REGISTER_BYTE ((TYPE_CODE (TYPE) == TYPE_CODE_FLT && mips_fpu) ? FP0_REGNUM : 2), VALBUF, TYPE_LENGTH (TYPE)) /* Extract from an array REGBUF containing the (raw) register state the address in which a function should return its structure value, @@ -294,11 +299,11 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ 0, /* nop # ... to stop raw backtrace*/\ 0x27bd0000, /* addu sp,?0 # Pseudo prologue */\ /* Start here: */\ - MK_OP(061,SP_REGNUM,12,0), /* lwc1 $f12,0(sp) # Reload first 4 args*/\ + MK_OP(061,SP_REGNUM,12,0), /* lwc1 $f12,0(sp) # Reload FP regs*/\ MK_OP(061,SP_REGNUM,13,4), /* lwc1 $f13,4(sp) */\ MK_OP(061,SP_REGNUM,14,8), /* lwc1 $f14,8(sp) */\ MK_OP(061,SP_REGNUM,15,12), /* lwc1 $f15,12(sp) */\ - MK_OP(043,SP_REGNUM,4,0), /* lw $r4,0(sp) # Re-load FP regs*/\ + MK_OP(043,SP_REGNUM,4,0), /* lw $r4,0(sp) # Reload first 4 args*/\ MK_OP(043,SP_REGNUM,5,4), /* lw $r5,4(sp) */\ MK_OP(043,SP_REGNUM,6,8), /* lw $r6,8(sp) */\ MK_OP(043,SP_REGNUM,7,12), /* lw $r7,12(sp) */\ @@ -315,8 +320,19 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ into a call sequence of the above form stored at DUMMYNAME. */ #define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p)\ - (((int*)dummyname)[11] |= (((unsigned long)(fun)) >> 16), \ - ((int*)dummyname)[12] |= (unsigned short)(fun)) + do \ + { \ + ((int*)(dummyname))[11] |= ((unsigned long)(fun)) >> 16; \ + ((int*)(dummyname))[12] |= (unsigned short)(fun); \ + if (! mips_fpu) \ + { \ + ((int *) (dummyname))[3] = 0; \ + ((int *) (dummyname))[4] = 0; \ + ((int *) (dummyname))[5] = 0; \ + ((int *) (dummyname))[6] = 0; \ + } \ + } \ + while (0) /* There's a mess in stack frame creation. See comments in blockframe.c near reference to INIT_FRAME_PC_FIRST. */ |