* valops.c (value_assign): Change bitfield code to use a buffer of
the correct size, rather than an int.
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@ -1,8 +1,16 @@
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Thu Oct 28 09:14:42 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
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* valops.c (value_assign): Change bitfield code to use a buffer of
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the correct size, rather than an int.
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Wed Oct 27 13:43:07 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
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* config/i386/{i386m3.mt,i386m3.mh}: Use correct names for TM_FILE
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and XM_FILE. Replace host file i386mach3-xdep.o with native file
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i386m3-nat.o.
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* config/i386/{i386m3.mt,i386m3.mh},
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config/mips/{mipsm3.mt,mipsm3.mh},
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config/ns32k/{ns32km3.mt,ns32km3.mh}: Use correct names for TM_FILE
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and XM_FILE. Replace host files *mach3-xdep.o with native
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files *m3-nat.o. Replace host file os-mach3.o with native
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file m3-nat.o.
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* remote-udi.c: Remove LOG_FILE stuff; superceded by "set remotedebug".
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* remote-mon.c: Remove commented out "set remotedebug" command.
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42
gdb/valops.c
42
gdb/valops.c
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@ -329,13 +329,24 @@ value_assign (toval, fromval)
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case lval_memory:
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if (VALUE_BITSIZE (toval))
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{
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int v; /* FIXME, this won't work for large bitfields */
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char buffer[sizeof (LONGEST)];
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/* We assume that the argument to read_memory is in units of
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host chars. FIXME: Is that correct? */
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int len = (VALUE_BITPOS (toval)
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+ VALUE_BITSIZE (toval)
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+ HOST_CHAR_BIT - 1)
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/ HOST_CHAR_BIT;
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/* If bigger than a LONGEST, we don't handle it correctly,
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but at least avoid corrupting memory. */
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if (len > sizeof (LONGEST))
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len = sizeof (LONGEST);
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read_memory (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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(char *) &v, sizeof v);
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modify_field ((char *) &v, value_as_long (fromval),
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buffer, len);
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modify_field (buffer, value_as_long (fromval),
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VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
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write_memory (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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(char *)&v, sizeof v);
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buffer, len);
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}
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else if (use_buffer)
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write_memory (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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@ -348,14 +359,14 @@ value_assign (toval, fromval)
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case lval_register:
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if (VALUE_BITSIZE (toval))
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{
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int v;
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read_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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(char *) &v, sizeof v);
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modify_field ((char *) &v, value_as_long (fromval),
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VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
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write_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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(char *) &v, sizeof v);
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char buffer[MAX_REGISTER_RAW_SIZE];
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int len = REGISTER_RAW_SIZE (VALUE_REGNO (toval));
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read_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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buffer, len);
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modify_field (buffer, value_as_long (fromval),
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VALUE_BITPOS (toval), VALUE_BITSIZE (toval));
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write_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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buffer, len);
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}
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else if (use_buffer)
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write_register_bytes (VALUE_ADDRESS (toval) + VALUE_OFFSET (toval),
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@ -392,7 +403,12 @@ value_assign (toval, fromval)
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int byte_offset = VALUE_OFFSET (toval) % reg_size;
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int reg_offset = VALUE_OFFSET (toval) / reg_size;
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int amount_copied;
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char *buffer = (char *) alloca (amount_to_copy);
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/* Make the buffer large enough in all cases. */
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char *buffer = (char *) alloca (amount_to_copy
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+ sizeof (LONGEST)
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+ MAX_REGISTER_RAW_SIZE);
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int regno;
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FRAME frame;
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