diff options
Diffstat (limited to 'gdb/values.c')
| -rw-r--r-- | gdb/values.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gdb/values.c b/gdb/values.c index 39ec8ea..5d40882 100644 --- a/gdb/values.c +++ b/gdb/values.c @@ -1111,6 +1111,11 @@ unpack_field_as_long (type, valaddr, fieldno) return val; } +/* Modify the value of a bitfield. ADDR points to a block of memory in + target byte order; the bitfield starts in the byte pointed to. FIELDVAL + is the desired value of the field, in host byte order. BITPOS and BITSIZE + indicate which bits (in target bit order) comprise the bitfield. */ + void modify_field (addr, fieldval, bitpos, bitsize) char *addr; @@ -1125,14 +1130,17 @@ modify_field (addr, fieldval, bitpos, bitsize) error ("Value %d does not fit in %d bits.", fieldval, bitsize); bcopy (addr, &oword, sizeof oword); + SWAP_TARGET_AND_HOST (&oword, sizeof oword); /* To host format */ - /* Shifting for bit field depends on endianness of the machine. */ + /* Shifting for bit field depends on endianness of the target machine. */ #ifdef BITS_BIG_ENDIAN bitpos = sizeof (oword) * 8 - bitpos - bitsize; #endif oword &= ~(((1 << bitsize) - 1) << bitpos); oword |= fieldval << bitpos; + + SWAP_TARGET_AND_HOST (&oword, sizeof oword); /* To target format */ bcopy (&oword, addr, sizeof oword); } |