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| author | Michael Snyder <msnyder@vmware.com> | 2004-11-11 19:21:01 +0000 |
|---|---|---|
| committer | Michael Snyder <msnyder@vmware.com> | 2004-11-11 19:21:01 +0000 |
| commit | be723e2244f661aabde71e2ba9ec989c62cd6c8d (patch) | |
| tree | 9e243114867f855dff060cc5d1b2062dafd45f8e /gdb/rs6000-tdep.c | |
| parent | a67517f48ea8dba9381df004e6aebf9b1d0d39c2 (diff) | |
| download | gdb-be723e2244f661aabde71e2ba9ec989c62cd6c8d.zip gdb-be723e2244f661aabde71e2ba9ec989c62cd6c8d.tar.gz gdb-be723e2244f661aabde71e2ba9ec989c62cd6c8d.tar.bz2 | |
2004-11-10 msnyder <msnyder@redhat.com>
* rs6000-tdep.c (skip_prologue): After saving lr_offset,
must invalidate lr_reg (so we don't try to save it again).
Ditto for cr_offset and cr_reg.
Diffstat (limited to 'gdb/rs6000-tdep.c')
| -rw-r--r-- | gdb/rs6000-tdep.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c index 37988a3..b5bb110 100644 --- a/gdb/rs6000-tdep.c +++ b/gdb/rs6000-tdep.c @@ -981,7 +981,7 @@ skip_prologue (CORE_ADDR pc, CORE_ADDR lim_pc, struct rs6000_framedata *fdata) continue; } - else if (lr_reg != -1 && + else if (lr_reg >= 0 && /* std Rx, NUM(r1) || stdu Rx, NUM(r1) */ (((op & 0xffff0000) == (lr_reg | 0xf8010000)) || /* stw Rx, NUM(r1) */ @@ -991,7 +991,9 @@ skip_prologue (CORE_ADDR pc, CORE_ADDR lim_pc, struct rs6000_framedata *fdata) { /* where Rx == lr */ fdata->lr_offset = offset; fdata->nosavedpc = 0; - lr_reg = 0; + /* Invalidate lr_reg, but don't set it to -1. + That would mean that it had never been set. */ + lr_reg = -2; if ((op & 0xfc000003) == 0xf8000000 || /* std */ (op & 0xfc000000) == 0x90000000) /* stw */ { @@ -1001,7 +1003,7 @@ skip_prologue (CORE_ADDR pc, CORE_ADDR lim_pc, struct rs6000_framedata *fdata) continue; } - else if (cr_reg != -1 && + else if (cr_reg >= 0 && /* std Rx, NUM(r1) || stdu Rx, NUM(r1) */ (((op & 0xffff0000) == (cr_reg | 0xf8010000)) || /* stw Rx, NUM(r1) */ @@ -1010,7 +1012,9 @@ skip_prologue (CORE_ADDR pc, CORE_ADDR lim_pc, struct rs6000_framedata *fdata) ((op & 0xffff0000) == (cr_reg | 0x94010000)))) { /* where Rx == cr */ fdata->cr_offset = offset; - cr_reg = 0; + /* Invalidate cr_reg, but don't set it to -1. + That would mean that it had never been set. */ + cr_reg = -2; if ((op & 0xfc000003) == 0xf8000000 || (op & 0xfc000000) == 0x90000000) { |