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| author | John Gilmore <gnu@cygnus> | 1994-01-11 08:59:41 +0000 |
|---|---|---|
| committer | John Gilmore <gnu@cygnus> | 1994-01-11 08:59:41 +0000 |
| commit | c369b6a32f2d629c4ed70850adf20ec4057e84f5 (patch) | |
| tree | 6341e6408b040a51754fa135dbdca56131e2249d | |
| parent | 7b2bcbf59d9eaa5123765fcc9640b7bbd4180e4f (diff) | |
| download | gdb-c369b6a32f2d629c4ed70850adf20ec4057e84f5.zip gdb-c369b6a32f2d629c4ed70850adf20ec4057e84f5.tar.gz gdb-c369b6a32f2d629c4ed70850adf20ec4057e84f5.tar.bz2 | |
* sparc-nat.c (fetch_inferior_registers, store_inferior_registers):
Read and write the fsr (float status register) to/from the child
process. This avoids random float exceptions when running under
GDB, and probably obsoletes Peter Schauer's change of May 24 '93
(which remains for safety).
| -rw-r--r-- | gdb/ChangeLog | 8 | ||||
| -rw-r--r-- | gdb/sparc-nat.c | 12 |
2 files changed, 15 insertions, 5 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 1a06726..2303918 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +Tue Jan 11 00:53:46 1994 John Gilmore (gnu@cygnus.com) + + * sparc-nat.c (fetch_inferior_registers, store_inferior_registers): + Read and write the fsr (float status register) to/from the child + process. This avoids random float exceptions when running under + GDB, and probably obsoletes Peter Schauer's change of May 24 '93 + (which remains for safety). + Mon Jan 10 23:16:42 1994 John Gilmore (gnu@cygnus.com) * a29k-tdep.c (examine_prologue): Don't worry if the ASGEQ diff --git a/gdb/sparc-nat.c b/gdb/sparc-nat.c index e1f0235..5fcdb92 100644 --- a/gdb/sparc-nat.c +++ b/gdb/sparc-nat.c @@ -98,9 +98,9 @@ fetch_inferior_registers (regno) perror("ptrace_getfpregs"); memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, sizeof inferior_fp_registers.fpu_fr); - /* memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], + memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], &inferior_fp_registers.Fpu_fsr, - sizeof (FPU_FSR_TYPE)); FIXME??? -- gnu@cyg */ + sizeof (FPU_FSR_TYPE)); for (i = FP0_REGNUM; i <= FP0_REGNUM+31; i++) register_valid[i] = 1; register_valid[FPS_REGNUM] = 1; @@ -223,17 +223,19 @@ store_inferior_registers (regno) { if (!register_valid[FP0_REGNUM+9]) abort(); /* Initialize inferior_fp_registers members that gdb doesn't set - by reading them from the inferior. */ + by reading them from the inferior. This may not be needed + any more, now that we set Fpu_fsr. */ if (0 != ptrace (PTRACE_GETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0)) perror("ptrace_getfpregs"); + memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], sizeof inferior_fp_registers.fpu_fr); -/* memcpy (&inferior_fp_registers.Fpu_fsr, + memcpy (&inferior_fp_registers.Fpu_fsr, ®isters[REGISTER_BYTE (FPS_REGNUM)], sizeof (FPU_FSR_TYPE)); -****/ + if (0 != ptrace (PTRACE_SETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0)) |