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Fix stack unwinding through _sigtramp on Irix. These patches are from

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Paul Flinders <ptf@delcam.co.uk>.
	* mipsread.c (fixup_sigtramp): Find _sigtramp on Irix even when the
	executable uses sigvec.
	* mips-tdep.c (read_next_frame_reg): Allow tm-file to override
	sigcontext offsets.
	* config/mips/tm-irix3.h: Add sigcontext offsets for Irix.
This commit is contained in:
Peter Schauer 1993-05-22 10:34:47 +00:00
parent 101b7f9ca5
commit 7cf92dd250
2 changed files with 19 additions and 8 deletions
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10
gdb/ChangeLog
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@ -1,3 +1,13 @@
Sat May 22 03:33:07 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
Fix stack unwinding through _sigtramp on Irix. These patches are from
Paul Flinders <ptf@delcam.co.uk>.
* mipsread.c (fixup_sigtramp): Find _sigtramp on Irix even when the
executable uses sigvec.
* mips-tdep.c (read_next_frame_reg): Allow tm-file to override
sigcontext offsets.
* config/mips/tm-irix3.h: Add sigcontext offsets for Irix.
Sat May 22 00:39:01 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* infrun.c (wait_for_inferior): Clear stop_signal if it should not

17
gdb/mipsread.c
View file

@ -3153,19 +3153,20 @@ fixup_sigtramp ()
sigtramp_address = -1;
/* We know it is sold as sigvec */
/* We have to handle the following cases here:
a) The Mips library has a sigtramp label within sigvec.
b) Irix has a _sigtramp which we want to use, but it also has sigvec. */
s = lookup_symbol ("sigvec", 0, VAR_NAMESPACE, 0, NULL);
/* Most programs do not play with signals */
if (s == 0)
s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL);
else
if (s != 0)
{
b0 = SYMBOL_BLOCK_VALUE (s);
/* A label of sigvec, to be more precise */
s = lookup_symbol ("sigtramp", b0, VAR_NAMESPACE, 0, NULL);
}
if (s == 0)
{
/* No sigvec or no sigtramp inside sigvec, try _sigtramp. */
s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL);
}
/* But maybe this program uses its own version of sigvec */
if (s == 0)