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* ia64-tdep.c (fetch_instruction): Warn about slot numbers greater

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than two instead of generating an error.
This commit is contained in:
Kevin Buettner 2001-03-22 02:11:11 +00:00
parent 272ba48f53
commit c26e1c2b79
2 changed files with 23 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2001-03-21 Kevin Buettner <kevinb@redhat.com>
* ia64-tdep.c (fetch_instruction): Warn about slot numbers greater
than two instead of generating an error.
2001-03-21 Jim Blandy <jimb@redhat.com>
* cp-valprint.c: Reformat to bring into line with GNU coding

19
gdb/ia64-tdep.c
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@ -492,8 +492,25 @@ fetch_instruction (CORE_ADDR addr, instruction_type *it, long long *instr)
long long template;
int val;
/* Warn about slot numbers greater than 2. We used to generate
an error here on the assumption that the user entered an invalid
address. But, sometimes GDB itself requests an invalid address.
This can (easily) happen when execution stops in a function for
which there are no symbols. The prologue scanner will attempt to
find the beginning of the function - if the nearest symbol
happens to not be aligned on a bundle boundary (16 bytes), the
resulting starting address will cause GDB to think that the slot
number is too large.
So we warn about it and set the slot number to zero. It is
not necessarily a fatal condition, particularly if debugging
at the assembly language level. */
if (slotnum > 2)
error("Can't fetch instructions for slot numbers greater than 2.");
{
warning ("Can't fetch instructions for slot numbers greater than 2.\n"
"Using slot 0 instead");
slotnum = 0;
}
addr &= ~0x0f;