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Fix build of powerpc FPU emulator after changes in r295132 to restore the

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ABI of struct fpreg.  The FPU emulator operates on the "raw" FPU state
stored in the pcb rather than the "cooked" fpreg state used for ptrace()
and cores.

Reported by:	bz
This commit is contained in:
John Baldwin 2016-02-04 17:43:56 +00:00
parent f13ec4b40e
commit aa59d767c7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=295271
2 changed files with 24 additions and 24 deletions
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42
sys/powerpc/fpu/fpu_emu.c
View File

@ -275,7 +275,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
vm_offset_t addr;
int ra, rb, rc, rt, type, mask, fsr, cx, bf, setcr;
unsigned int cond;
struct fpreg *fs;
struct fpu *fs;
/* Setup work. */
fp = NULL;
@ -335,7 +335,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
if (ra != 0)
addr += tf->fixreg[ra];
rt = instr.i_x.i_rt;
a = (int *)&fs->fpreg[rt].fpr;
a = (int *)&fs->fpr[rt].fpr;
DPRINTF(FPE_INSN,
("fpu_execute: Store INT %x at %p\n",
a[1], (void *)addr));
@ -402,7 +402,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
DPRINTF(FPE_INSN,
("fpu_execute: Store DBL at %p\n",
(void *)addr));
if (copyout(&fs->fpreg[rt].fpr, (void *)addr,
if (copyout(&fs->fpr[rt].fpr, (void *)addr,
size))
return (FAULT);
}
@ -411,13 +411,13 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
FPU_EMU_EVCNT_INCR(fpload);
DPRINTF(FPE_INSN, ("fpu_execute: Load from %p\n",
(void *)addr));
if (copyin((const void *)addr, &fs->fpreg[rt].fpr,
if (copyin((const void *)addr, &fs->fpr[rt].fpr,
size))
return (FAULT);
if (type != FTYPE_DBL) {
fpu_explode(fe, fp = &fe->fe_f1, type, rt);
fpu_implode(fe, fp, FTYPE_DBL,
(u_int *)&fs->fpreg[rt].fpr);
(u_int *)&fs->fpr[rt].fpr);
}
}
if (update)
@ -470,7 +470,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
DPRINTF(FPE_INSN, ("fpu_execute: FRSP\n"));
fpu_explode(fe, fp = &fe->fe_f1, FTYPE_DBL, rb);
fpu_implode(fe, fp, FTYPE_SNG,
(u_int *)&fs->fpreg[rt].fpr);
(u_int *)&fs->fpr[rt].fpr);
fpu_explode(fe, fp = &fe->fe_f1, FTYPE_SNG, rt);
type = FTYPE_DBL;
break;
@ -503,9 +503,9 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
case OPC63_FNEG:
FPU_EMU_EVCNT_INCR(fnegabs);
DPRINTF(FPE_INSN, ("fpu_execute: FNEGABS\n"));
memcpy(&fs->fpreg[rt].fpr, &fs->fpreg[rb].fpr,
memcpy(&fs->fpr[rt].fpr, &fs->fpr[rb].fpr,
sizeof(double));
a = (int *)&fs->fpreg[rt].fpr;
a = (int *)&fs->fpr[rt].fpr;
*a ^= (1U << 31);
break;
case OPC63_MCRFS:
@ -533,7 +533,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
case OPC63_FMR:
FPU_EMU_EVCNT_INCR(fmr);
DPRINTF(FPE_INSN, ("fpu_execute: FMR\n"));
memcpy(&fs->fpreg[rt].fpr, &fs->fpreg[rb].fpr,
memcpy(&fs->fpr[rt].fpr, &fs->fpr[rb].fpr,
sizeof(double));
break;
case OPC63_MTFSFI:
@ -550,23 +550,23 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
case OPC63_FNABS:
FPU_EMU_EVCNT_INCR(fnabs);
DPRINTF(FPE_INSN, ("fpu_execute: FABS\n"));
memcpy(&fs->fpreg[rt].fpr, &fs->fpreg[rb].fpr,
memcpy(&fs->fpr[rt].fpr, &fs->fpr[rb].fpr,
sizeof(double));
a = (int *)&fs->fpreg[rt].fpr;
a = (int *)&fs->fpr[rt].fpr;
*a |= (1U << 31);
break;
case OPC63_FABS:
FPU_EMU_EVCNT_INCR(fabs);
DPRINTF(FPE_INSN, ("fpu_execute: FABS\n"));
memcpy(&fs->fpreg[rt].fpr, &fs->fpreg[rb].fpr,
memcpy(&fs->fpr[rt].fpr, &fs->fpr[rb].fpr,
sizeof(double));
a = (int *)&fs->fpreg[rt].fpr;
a = (int *)&fs->fpr[rt].fpr;
*a &= ~(1U << 31);
break;
case OPC63_MFFS:
FPU_EMU_EVCNT_INCR(mffs);
DPRINTF(FPE_INSN, ("fpu_execute: MFFS\n"));
memcpy(&fs->fpreg[rt].fpr, &fs->fpscr,
memcpy(&fs->fpr[rt].fpr, &fs->fpscr,
sizeof(fs->fpscr));
break;
case OPC63_MTFSF:
@ -581,7 +581,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
if (rt & (1<<ra))
mask |= (0xf<<(4*ra));
}
a = (int *)&fs->fpreg[rt].fpr;
a = (int *)&fs->fpr[rt].fpr;
fe->fe_cx = mask & a[1];
fe->fe_fpscr = (fe->fe_fpscr&~mask) |
(fe->fe_cx);
@ -648,12 +648,12 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
case OPC63M_FSEL:
FPU_EMU_EVCNT_INCR(fsel);
DPRINTF(FPE_INSN, ("fpu_execute: FSEL\n"));
a = (int *)&fe->fe_fpstate->fpreg[ra].fpr;
a = (int *)&fe->fe_fpstate->fpr[ra].fpr;
if ((*a & 0x80000000) && (*a & 0x7fffffff))
/* fra < 0 */
rc = rb;
DPRINTF(FPE_INSN, ("f%d => f%d\n", rc, rt));
memcpy(&fs->fpreg[rt].fpr, &fs->fpreg[rc].fpr,
memcpy(&fs->fpr[rt].fpr, &fs->fpr[rc].fpr,
sizeof(double));
break;
case OPC59_FRES:
@ -662,7 +662,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
fpu_explode(fe, &fe->fe_f1, type, rb);
fp = fpu_sqrt(fe);
/* now we've gotta overwrite the dest reg */
*((int *)&fe->fe_fpstate->fpreg[rt].fpr) = 1;
*((int *)&fe->fe_fpstate->fpr[rt].fpr) = 1;
fpu_explode(fe, &fe->fe_f1, FTYPE_INT, rt);
fpu_div(fe);
break;
@ -681,7 +681,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
fp = fpu_sqrt(fe);
fe->fe_f2 = *fp;
/* now we've gotta overwrite the dest reg */
*((int *)&fe->fe_fpstate->fpreg[rt].fpr) = 1;
*((int *)&fe->fe_fpstate->fpr[rt].fpr) = 1;
fpu_explode(fe, &fe->fe_f1, FTYPE_INT, rt);
fpu_div(fe);
break;
@ -737,7 +737,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
/* If the instruction was single precision, round */
if (!(instr.i_any.i_opcd & 0x4)) {
fpu_implode(fe, fp, FTYPE_SNG,
(u_int *)&fs->fpreg[rt].fpr);
(u_int *)&fs->fpr[rt].fpr);
fpu_explode(fe, fp = &fe->fe_f1, FTYPE_SNG, rt);
}
}
@ -752,7 +752,7 @@ fpu_execute(struct trapframe *tf, struct fpemu *fe, union instr *insn)
* Otherwise set new current exceptions and accrue.
*/
if (fp)
fpu_implode(fe, fp, type, (u_int *)&fs->fpreg[rt].fpr);
fpu_implode(fe, fp, type, (u_int *)&fs->fpr[rt].fpr);
cx = fe->fe_cx;
fsr = fe->fe_fpscr;
if (cx != 0) {

6
sys/powerpc/fpu/fpu_explode.c
View File

@ -53,7 +53,7 @@ __FBSDID("$FreeBSD$");
#include <machine/fpu.h>
#include <machine/ieee.h>
#include <machine/reg.h>
#include <machine/pcb.h>
#include <powerpc/fpu/fpu_arith.h>
#include <powerpc/fpu/fpu_emu.h>
@ -211,9 +211,9 @@ fpu_explode(struct fpemu *fe, struct fpn *fp, int type, int reg)
u_int s, *space;
u_int64_t l, *xspace;
xspace = (u_int64_t *)&fe->fe_fpstate->fpreg[reg].fpr;
xspace = (u_int64_t *)&fe->fe_fpstate->fpr[reg].fpr;
l = xspace[0];
space = (u_int *)&fe->fe_fpstate->fpreg[reg].fpr;
space = (u_int *)&fe->fe_fpstate->fpr[reg].fpr;
s = space[0];
fp->fp_sign = s >> 31;
fp->fp_sticky = 0;