diff options
| author | Andrew Cagney <cagney@redhat.com> | 2005-02-08 21:00:16 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2005-02-08 21:00:16 +0000 |
| commit | 8f13581218ad9c20daa1d45618a04c2df4c48b03 (patch) | |
| tree | 63f3e1ed0a1ccc54aa8e84696b917f7bc3a15f64 | |
| parent | 1c7c5e5b0903c114e94c1c3d69d5349ba64e33b1 (diff) | |
| download | binutils-gdb-8f13581218ad9c20daa1d45618a04c2df4c48b03.tar.gz | |
2005-02-08 Andrew Cagney <cagney@gnu.org>
* ppc-linux-nat.c (ppc_register_u_addr): Hack around 64-bit
PT_FPSCR breakage.
| -rw-r--r-- | gdb/ChangeLog | 3 | ||||
| -rw-r--r-- | gdb/ppc-linux-nat.c | 15 |
2 files changed, 16 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index f709f7af6e5..248fcdacf37 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,8 @@ 2005-02-08 Andrew Cagney <cagney@gnu.org> + * ppc-linux-nat.c (ppc_register_u_addr): Hack around 64-bit + PT_FPSCR breakage. + * value.c (struct value): Move to here ... * value.h (struct value): ... from here. Copy comments to corresponding function declarations, re-order. diff --git a/gdb/ppc-linux-nat.c b/gdb/ppc-linux-nat.c index c98bb93f879..9df3e3d126f 100644 --- a/gdb/ppc-linux-nat.c +++ b/gdb/ppc-linux-nat.c @@ -212,8 +212,19 @@ ppc_register_u_addr (int regno) u_addr = PT_MSR * wordsize; if (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) - u_addr = PT_FPSCR * wordsize; - + { + /* NOTE: cagney/2005-02-08: On some 64-bit GNU/Linux systems the + kernel headers incorrectly contained the 32-bit definition of + PT_FPSCR. For the 32-bit definition, floating-point + registers occupy two 32-bit "slots", and the FPSCR lives in + the secondhalf of such a slot-pair (hence +1). For 64-bit, + the FPSCR instead occupies the full 64-bit 2-word-slot and + hence no adjustment is necessary. Hack around this. */ + if (wordsize == 8 && PT_FPSCR == (48 + 32 + 1)) + u_addr = (48 + 32) * wordsize; + else + u_addr = PT_FPSCR * wordsize; + } return u_addr; } |