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| author | Peter Schauer <Peter.Schauer@mytum.de> | 1993-05-22 10:34:47 +0000 |
|---|---|---|
| committer | Peter Schauer <Peter.Schauer@mytum.de> | 1993-05-22 10:34:47 +0000 |
| commit | 7cf92dd25051c98177125018cf3d74f2750e5cfe (patch) | |
| tree | 27e9be70ec60b6e3c52ec1fa6195986f2013ba82 /gdb/mipsread.c | |
| parent | 101b7f9ca5a7f40394e739e8745b1fcaeee96709 (diff) | |
| download | gdb-7cf92dd25051c98177125018cf3d74f2750e5cfe.zip gdb-7cf92dd25051c98177125018cf3d74f2750e5cfe.tar.gz gdb-7cf92dd25051c98177125018cf3d74f2750e5cfe.tar.bz2 | |
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.
Diffstat (limited to 'gdb/mipsread.c')
| -rw-r--r-- | gdb/mipsread.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/gdb/mipsread.c b/gdb/mipsread.c index 039f3a4..294f923 100644 --- a/gdb/mipsread.c +++ b/gdb/mipsread.c @@ -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) |