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* s390-tdep.c (s390_readinstruction): Don't call

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info->read_memory_func to read zero bytes.  Some targets'
xfer_memory functions can't cope with that.
This commit is contained in:
Jim Blandy
2001-12-20 08:50:47 +00:00
parent 2e7db62a77
commit c5e243bbc4
2 changed files with 9 additions and 2 deletions
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4
gdb/ChangeLog
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@@ -1,5 +1,9 @@
2001-12-19 Jim Blandy <jimb@redhat.com>
* s390-tdep.c (s390_readinstruction): Don't call
info->read_memory_func to read zero bytes. Some targets'
xfer_memory functions can't cope with that.
* gdbarch.sh (TARGET_CHAR_SIGNED): New macro.
* gdbarch.c, gdbarch.h: Regenerated.
* gdbtypes.c (build_gdbtypes): If TARGET_CHAR_SIGNED is zero,

7
gdb/s390-tdep.c
View File

@@ -132,8 +132,11 @@ s390_readinstruction (bfd_byte instr[], CORE_ADDR at,
if ((*info->read_memory_func) (at, &instr[0], 2, info))
return -1;
instrlen = s390_instrlen[instr[0] >> 6];
if ((*info->read_memory_func) (at + 2, &instr[2], instrlen - 2, info))
return -1;
if (instrlen > 2)
{
if ((*info->read_memory_func) (at + 2, &instr[2], instrlen - 2, info))
return -1;
}
return instrlen;
}