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* sparc-nat.c (store_inferior_registers): Fill in all members of 

inferior_fp_registers by reading them from the inferior before
	modifying and writing them back.
	Fixes unexplainable inferior FP exceptions after calls to the inferior
	or setting of floating point registers.
	* mips-tdep.c (mips_skip_prologue):  Skip move of argument register
	to register which is generated by gcc-2.4.
This commit is contained in:
Peter Schauer 1993-05-25 06:52:54 +00:00
parent 3b17ee1bad
commit 1b71de8ea4
3 changed files with 20 additions and 0 deletions
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10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
Mon May 24 23:50:05 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* sparc-nat.c (store_inferior_registers): Fill in all members of
inferior_fp_registers by reading them from the inferior before
modifying and writing them back.
Fixes unexplainable inferior FP exceptions after calls to the inferior
or setting of floating point registers.
* mips-tdep.c (mips_skip_prologue): Skip move of argument register
to register which is generated by gcc-2.4.
Tue May 25 00:42:39 1993 Ken Raeburn (raeburn@cygnus.com)
* hppa-pinsn.c: Define OLD_TABLE before including opcode/hppa.h.

4
gdb/mips-tdep.c
View File

@ -95,9 +95,11 @@ read_next_frame_reg(fi, regno)
immediately below the frame and we get the saved registers from there.
If the stack layout for sigtramp changes we might have to change these
constants and the companion fixup_sigtramp in mipsread.c */
#ifndef SIGFRAME_BASE
#define SIGFRAME_BASE 0x12c /* sizeof(sigcontext) */
#define SIGFRAME_PC_OFF (-SIGFRAME_BASE + 2 * 4)
#define SIGFRAME_REGSAVE_OFF (-SIGFRAME_BASE + 3 * 4)
#endif
for (; fi; fi = fi->next)
if (in_sigtramp(fi->pc, 0)) {
int offset;
@ -771,6 +773,8 @@ mips_skip_prologue(pc)
continue; /* reg != $zero */
else if (inst == 0x03A0F021) /* move $s8,$sp */
continue;
else if ((inst & 0xFF9F07FF) == 0x00800021) /* move reg,$a0-$a3 */
continue;
else
break;
}

6
gdb/sparc-nat.c
View File

@ -222,6 +222,12 @@ store_inferior_registers (regno)
if (wanna_store & FP_REGS)
{
if (!register_valid[FP0_REGNUM+9]) abort();
/* Initialize inferior_fp_registers members that gdb doesn't set
by reading them from the inferior. */
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);