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author | John Gilmore <gnu@cygnus> | 1994-01-11 08:59:41 +0000 |
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committer | John Gilmore <gnu@cygnus> | 1994-01-11 08:59:41 +0000 |
commit | c369b6a32f2d629c4ed70850adf20ec4057e84f5 (patch) | |
tree | 6341e6408b040a51754fa135dbdca56131e2249d /gdb | |
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).
Diffstat (limited to 'gdb')
-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)) |