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* sparc-nat.c (fetch_inferior_registers, store_inferior_registers):

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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).
This commit is contained in:
John Gilmore 1994-01-11 08:59:41 +00:00
parent 7b2bcbf59d
commit c369b6a32f
2 changed files with 15 additions and 5 deletions
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8
gdb/ChangeLog
View file

@ -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

12
gdb/sparc-nat.c
View file

@ -98,9 +98,9 @@ fetch_inferior_registers (regno)
perror("ptrace_getfpregs");
memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
sizeof inferior_fp_registers.fpu_fr);
/* memcpy (&registers[REGISTER_BYTE (FPS_REGNUM)],
memcpy (&registers[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, &registers[REGISTER_BYTE (FP0_REGNUM)],
sizeof inferior_fp_registers.fpu_fr);
/* memcpy (&inferior_fp_registers.Fpu_fsr,
memcpy (&inferior_fp_registers.Fpu_fsr,
&registers[REGISTER_BYTE (FPS_REGNUM)], sizeof (FPU_FSR_TYPE));
****/
if (0 !=
ptrace (PTRACE_SETFPREGS, inferior_pid,
(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0))