diff options
Diffstat (limited to 'recipes/qemu/qemu-0.9.1/41_arm_fpa_sigfpe.patch')
| -rw-r--r-- | recipes/qemu/qemu-0.9.1/41_arm_fpa_sigfpe.patch | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/recipes/qemu/qemu-0.9.1/41_arm_fpa_sigfpe.patch b/recipes/qemu/qemu-0.9.1/41_arm_fpa_sigfpe.patch deleted file mode 100644 index cea3afc7ff..0000000000 --- a/recipes/qemu/qemu-0.9.1/41_arm_fpa_sigfpe.patch +++ /dev/null @@ -1,104 +0,0 @@ -#DPATCHLEVEL=0 ---- -# linux-user/main.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++- -# target-arm/nwfpe/fpa11.c | 7 ++++++ -# 2 files changed, 57 insertions(+), 1 deletion(-) -# -Index: linux-user/main.c -=================================================================== ---- linux-user/main.c.orig 2007-12-03 15:59:10.000000000 +0000 -+++ linux-user/main.c 2007-12-03 16:01:27.000000000 +0000 -@@ -377,18 +377,67 @@ void cpu_loop(CPUARMState *env) - { - TaskState *ts = env->opaque; - uint32_t opcode; -+ int rc; - - /* we handle the FPU emulation here, as Linux */ - /* we get the opcode */ - /* FIXME - what to do if get_user() fails? */ - get_user_u32(opcode, env->regs[15]); - -- if (EmulateAll(opcode, &ts->fpa, env) == 0) { -+ rc = EmulateAll(opcode, &ts->fpa, env); -+ if (rc == 0) { /* illegal instruction */ - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = TARGET_ILL_ILLOPN; - info._sifields._sigfault._addr = env->regs[15]; - queue_signal(info.si_signo, &info); -+ } else if (rc < 0) { /* FP exception */ -+ int arm_fpe=0; -+ -+ /* translate softfloat flags to FPSR flags */ -+ if (-rc & float_flag_invalid) -+ arm_fpe |= BIT_IOC; -+ if (-rc & float_flag_divbyzero) -+ arm_fpe |= BIT_DZC; -+ if (-rc & float_flag_overflow) -+ arm_fpe |= BIT_OFC; -+ if (-rc & float_flag_underflow) -+ arm_fpe |= BIT_UFC; -+ if (-rc & float_flag_inexact) -+ arm_fpe |= BIT_IXC; -+ -+ FPSR fpsr = ts->fpa.fpsr; -+ //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe); -+ -+ if (fpsr & (arm_fpe << 16)) { /* exception enabled? */ -+ info.si_signo = SIGFPE; -+ info.si_errno = 0; -+ -+ /* ordered by priority, least first */ -+ if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES; -+ if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND; -+ if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF; -+ if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV; -+ if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV; -+ -+ info._sifields._sigfault._addr = env->regs[15]; -+ queue_signal(info.si_signo, &info); -+ } else { -+ env->regs[15] += 4; -+ } -+ -+ /* accumulate unenabled exceptions */ -+ if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC)) -+ fpsr |= BIT_IXC; -+ if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC)) -+ fpsr |= BIT_UFC; -+ if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC)) -+ fpsr |= BIT_OFC; -+ if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC)) -+ fpsr |= BIT_DZC; -+ if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC)) -+ fpsr |= BIT_IOC; -+ ts->fpa.fpsr=fpsr; - } else { - /* increment PC */ - env->regs[15] += 4; -Index: target-arm/nwfpe/fpa11.c -=================================================================== ---- target-arm/nwfpe/fpa11.c.orig 2007-12-03 15:40:26.000000000 +0000 -+++ target-arm/nwfpe/fpa11.c 2007-12-03 15:59:11.000000000 +0000 -@@ -162,6 +162,8 @@ unsigned int EmulateAll(unsigned int opc - fpa11->initflag = 1; - } - -+ set_float_exception_flags(0, &fpa11->fp_status); -+ - if (TEST_OPCODE(opcode,MASK_CPRT)) - { - //fprintf(stderr,"emulating CPRT\n"); -@@ -191,6 +193,11 @@ unsigned int EmulateAll(unsigned int opc - } - - // restore_flags(flags); -+ if(nRc == 1 && get_float_exception_flags(&fpa11->fp_status)) -+ { -+ //printf("fef 0x%x\n",float_exception_flags); -+ nRc=-get_float_exception_flags(&fpa11->fp_status); -+ } - - //printf("returning %d\n",nRc); - return(nRc); |