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| author | Jim Kingdon <jkingdon@engr.sgi.com> | 1993-04-26 16:44:03 +0000 |
|---|---|---|
| committer | Jim Kingdon <jkingdon@engr.sgi.com> | 1993-04-26 16:44:03 +0000 |
| commit | 9aa31e91d68c5e49b99fbedf257ef25ad8664944 (patch) | |
| tree | dad4ad92dc4a2cfb8a7710b8099d069937c75ea1 /gdb/rs6000-tdep.c | |
| parent | 63ddbacf196d20610ad2ffec00b029c9d774c921 (diff) | |
| download | gdb-9aa31e91d68c5e49b99fbedf257ef25ad8664944.zip gdb-9aa31e91d68c5e49b99fbedf257ef25ad8664944.tar.gz gdb-9aa31e91d68c5e49b99fbedf257ef25ad8664944.tar.bz2 | |
* rs6000-tdep.c (branch_dest): Deal with stepping through system call.
Diffstat (limited to 'gdb/rs6000-tdep.c')
| -rw-r--r-- | gdb/rs6000-tdep.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c index 12d3361..e783c1e 100644 --- a/gdb/rs6000-tdep.c +++ b/gdb/rs6000-tdep.c @@ -106,8 +106,15 @@ branch_dest (opcode, instr, pc, safety) dest = read_register (LR_REGNUM) & ~3; else if (ext_op == 528) /* br cond to count reg */ - dest = read_register (CTR_REGNUM) & ~3; - + { + dest = read_register (CTR_REGNUM) & ~3; + + /* If we are about to execute a system call, dest is something + like 0x22fc or 0x3b00. Upon completion the system call + will return to the address in the link register. */ + if (dest < TEXT_SEGMENT_BASE) + dest = read_register (LR_REGNUM) & ~3; + } else return -1; break; |