diff options
Diffstat (limited to 'gdb/tm-29k.h')
| -rw-r--r-- | gdb/tm-29k.h | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/gdb/tm-29k.h b/gdb/tm-29k.h index c1c30ca..5173637 100644 --- a/gdb/tm-29k.h +++ b/gdb/tm-29k.h @@ -620,24 +620,36 @@ extern void pop_frame (); mtsrim cr, 15 loadm 0, 0, lr2, msp ; load first 16 words of arguments into registers add msp, msp, 16 * 4 ; point to the remaining arguments - CONST_INSN: - const lr0,inf - consth lr0,inf + CONST_INSN: + const lr0,inf ; (replaced by half of target addr) + consth lr0,inf ; (replaced by other half of target addr) calli lr0, lr0 aseq 0x40,gr1,gr1 ; nop - asneq 0x50,gr1,gr1 ; breakpoint + BREAKPT_INSN: + asneq 0x50,gr1,gr1 ; breakpoint (replaced by local breakpoint insn) */ -/* Position of the "const" instruction within CALL_DUMMY in bytes. */ -#define CONST_INSN (3 * 4) #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER -#define CALL_DUMMY {0x0400870f,\ - 0x36008200|(MSP_HW_REGNUM), \ - 0x15000040|(MSP_HW_REGNUM<<8)|(MSP_HW_REGNUM<<16), \ - 0x03ff80ff, 0x02ff80ff, 0xc8008080, 0x70400101, 0x72500101} -#else /* Byte order differs. */ - you lose -#endif /* Byte order differs. */ +#define BS(const) const +#else +#define BS(const) (((const) & 0xff) << 24) | \ + (((const) & 0xff00) << 8) | \ + (((const) & 0xff0000) >> 8) | \ + (((const) & 0xff000000) >> 24) +#endif + +/* Position of the "const" and blkt instructions within CALL_DUMMY in bytes. */ +#define CONST_INSN (3 * 4) +#define BREAKPT_INSN (7 * 4) +#define CALL_DUMMY { \ + BS(0x0400870f),\ + BS(0x36008200|(MSP_HW_REGNUM)), \ + BS(0x15000040|(MSP_HW_REGNUM<<8)|(MSP_HW_REGNUM<<16)), \ + BS(0x03ff80ff), \ + BS(0x02ff80ff), \ + BS(0xc8008080), \ + BS(0x70400101), \ + BS(0x72500101)} #define CALL_DUMMY_LENGTH (8 * 4) #define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */ @@ -664,14 +676,15 @@ extern void pop_frame (); into a call sequence of the above form stored at DUMMYNAME. */ /* Currently this stuffs in the address of the function that we are calling. - If different 29k systems use different breakpoint instructions, it - could also stuff BREAKPOINT in the right place (to avoid having to + Since different 29k systems use different breakpoint instructions, it + also stuffs BREAKPOINT in the right place (to avoid having to duplicate CALL_DUMMY in each tm-*.h file). */ #define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ {\ - STUFF_I16((char *)dummyname + CONST_INSN, fun);\ - STUFF_I16((char *)dummyname + CONST_INSN + 4, fun >> 16);\ + STUFF_I16((char *)dummyname + CONST_INSN, fun); \ + STUFF_I16((char *)dummyname + CONST_INSN + 4, fun >> 16); \ + /* FIXME memcpy ((char *)(dummyname) + BREAKPT_INSN, break_insn, 4); */ \ } /* 29k architecture has separate data & instruction memories -- wired to |