diff options
Diffstat (limited to 'gdb/findvar.c')
| -rw-r--r-- | gdb/findvar.c | 78 |
1 files changed, 48 insertions, 30 deletions
diff --git a/gdb/findvar.c b/gdb/findvar.c index 5bfecc2..74be8c7 100644 --- a/gdb/findvar.c +++ b/gdb/findvar.c @@ -43,6 +43,8 @@ const struct floatformat floatformat_unknown; static void write_register_gen PARAMS ((int, char *)); +static int read_relative_register_raw_bytes_for_frame PARAMS ((int regnum, char *myaddr, struct frame_info *frame)); + /* Basic byte-swapping routines. GDB has needed these for a long time... All extract a target-format integer at ADDR which is LEN bytes long. */ @@ -252,25 +254,6 @@ store_address (addr, len, val) int len; LONGEST val; { - if( TARGET_BYTE_ORDER == BIG_ENDIAN - && len != sizeof( LONGEST )) { - /* On big-endian machines (e.g., HPPA 2.0, narrow mode) - * just letting this fall through to the call below will - * lead to the wrong bits being stored. - * - * Only the simplest case is fixed here, the others just - * get the old behavior. - */ - if( (len == sizeof( CORE_ADDR )) - && (sizeof( LONGEST ) == 2 * sizeof( CORE_ADDR ))) { - /* Watch out! The high bits are garbage! */ - CORE_ADDR coerce[2]; - *(LONGEST*)&coerce = val; - - store_unsigned_integer (addr, len, coerce[1] ); /* BIG_ENDIAN code! */ - return; - } - } store_unsigned_integer (addr, len, val); } @@ -393,7 +376,6 @@ store_floating (addr, len, val) } } -#if !defined (GET_SAVED_REGISTER) /* Return the address in which frame FRAME's value of register REGNUM has been saved in memory. Or return zero if it has not been saved. @@ -477,7 +459,7 @@ find_saved_register (frame, regnum) The argument RAW_BUFFER must point to aligned memory. */ void -get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) +default_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) char *raw_buffer; int *optimized; CORE_ADDR *addrp; @@ -523,7 +505,22 @@ get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) if (addrp != NULL) *addrp = addr; } -#endif /* GET_SAVED_REGISTER. */ + +#if !defined (GET_SAVED_REGISTER) +#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \ + default_get_saved_register(raw_buffer, optimized, addrp, frame, regnum, lval) +#endif +void +get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) + char *raw_buffer; + int *optimized; + CORE_ADDR *addrp; + struct frame_info *frame; + int regnum; + enum lval_type *lval; +{ + GET_SAVED_REGISTER (raw_buffer, optimized, addrp, frame, regnum, lval); +} /* Copy the bytes of register REGNUM, relative to the input stack frame, into our memory at MYADDR, in target byte order. @@ -531,7 +528,7 @@ get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) Returns 1 if could not be read, 0 if could. */ -int +static int read_relative_register_raw_bytes_for_frame (regnum, myaddr, frame) int regnum; char *myaddr; @@ -627,15 +624,14 @@ value_of_register (regnum) or it will get garbage. (a change from GDB version 3, in which the caller got the value from the last stop). */ -/* Contents of the registers in target byte order. - We allocate some extra slop since we do a lot of memcpy's around - `registers', and failing-soft is better than failing hard. */ +/* Contents and state of the registers (in target byte order). */ -char registers[REGISTER_BYTES + /* SLOP */ 256]; +char *registers; -/* Nonzero if that register has been fetched, - -1 if register value not available. */ -SIGNED char register_valid[NUM_REGS]; +/* VALID_REGISTER is non-zero if it has been fetched, -1 if the + register value was not available. */ + +signed char *register_valid; /* The thread/process associated with the current set of registers. For now, -1 is special, and means `no current process'. */ @@ -1628,3 +1624,25 @@ locate_var_value (var, frame) } return 0; /* For lint -- never reached */ } + + +static void build_findvar PARAMS ((void)); +static void +build_findvar () +{ + /* We allocate some extra slop since we do a lot of memcpy's around + `registers', and failing-soft is better than failing hard. */ + int sizeof_registers = REGISTER_BYTES + /* SLOP */ 256; + int sizeof_register_valid = NUM_REGS * sizeof (*register_valid); + registers = xmalloc (sizeof_registers); + memset (registers, 0, sizeof_registers); + register_valid = xmalloc (sizeof_register_valid); + memset (register_valid, 0, sizeof_register_valid); +} + +void _initialize_findvar PARAMS ((void)); +void +_initialize_findvar () +{ + build_findvar (); +} |