diff options
| -rw-r--r-- | arch/powerpc/kernel/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/binfmt_elf32.c (renamed from arch/ppc64/kernel/binfmt_elf32.c) | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/process.c | 6 | ||||
| -rw-r--r-- | arch/ppc64/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/ppc64/kernel/sys_ppc32.c | 46 |
5 files changed, 7 insertions, 51 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index f03f6d4ffaa6..adac749a1a8a 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -11,6 +11,7 @@ CFLAGS_btext.o += -fPIC endif obj-y := semaphore.o cputable.o +obj-$(CONFIG_PPC64) += binfmt_elf32.o obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o obj-$(CONFIG_POWER4) += idle_power4.o diff --git a/arch/ppc64/kernel/binfmt_elf32.c b/arch/powerpc/kernel/binfmt_elf32.c index fadc699a0497..8ad6b0f33651 100644 --- a/arch/ppc64/kernel/binfmt_elf32.c +++ b/arch/powerpc/kernel/binfmt_elf32.c @@ -70,9 +70,6 @@ cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value) value->tv_sec = jiffies / HZ; } -extern void start_thread32(struct pt_regs *, unsigned long, unsigned long); -#undef start_thread -#define start_thread start_thread32 #define init_elf_binfmt init_elf32_binfmt #include "../../../fs/binfmt_elf.c" diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 92bc75f61ca6..193c8c1bf132 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -620,7 +620,7 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp) regs->nip = start; regs->msr = MSR_USER; #else - { + if (!test_thread_flag(TIF_32BIT)) { unsigned long entry, toc, load_addr = regs->gpr[2]; /* start is a relocated pointer to the function descriptor for @@ -641,6 +641,10 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp) regs->nip = entry; regs->gpr[2] = toc; regs->msr = MSR_USER64; + } else { + regs->nip = start; + regs->gpr[2] = 0; + regs->msr = MSR_USER32; } #endif diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile index 834aef034b77..a724f6fc04da 100644 --- a/arch/ppc64/kernel/Makefile +++ b/arch/ppc64/kernel/Makefile @@ -14,7 +14,7 @@ endif obj-y += irq.o idle.o dma.o \ time.o signal.o syscalls.o ptrace.o \ align.o bitops.o pacaData.o \ - udbg.o binfmt_elf32.o sys_ppc32.o ioctl32.o \ + udbg.o sys_ppc32.o ioctl32.o \ ptrace32.o signal32.o rtc.o \ cpu_setup_power4.o \ iommu.o sysfs.o vdso.o pmc.o firmware.o diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c index 1cacf61f9c91..b53f565ee443 100644 --- a/arch/ppc64/kernel/sys_ppc32.c +++ b/arch/ppc64/kernel/sys_ppc32.c @@ -609,52 +609,6 @@ out: return error; } -/* Set up a thread for executing a new program. */ -void start_thread32(struct pt_regs* regs, unsigned long nip, unsigned long sp) -{ - set_fs(USER_DS); - - /* - * If we exec out of a kernel thread then thread.regs will not be - * set. Do it now. - */ - if (!current->thread.regs) { - unsigned long childregs = (unsigned long)current->thread_info + - THREAD_SIZE; - childregs -= sizeof(struct pt_regs); - current->thread.regs = (struct pt_regs *)childregs; - } - - /* - * ELF_PLAT_INIT already clears all registers but it also sets r2. - * So just clear r2 here. - */ - regs->gpr[2] = 0; - - regs->nip = nip; - regs->gpr[1] = sp; - regs->msr = MSR_USER32; -#ifndef CONFIG_SMP - if (last_task_used_math == current) - last_task_used_math = 0; -#endif /* CONFIG_SMP */ - current->thread.fpscr = 0; - memset(current->thread.fpr, 0, sizeof(current->thread.fpr)); -#ifdef CONFIG_ALTIVEC -#ifndef CONFIG_SMP - if (last_task_used_altivec == current) - last_task_used_altivec = 0; -#endif /* CONFIG_SMP */ - memset(current->thread.vr, 0, sizeof(current->thread.vr)); - current->thread.vscr.u[0] = 0; - current->thread.vscr.u[1] = 0; - current->thread.vscr.u[2] = 0; - current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */ - current->thread.vrsave = 0; - current->thread.used_vr = 0; -#endif /* CONFIG_ALTIVEC */ -} - /* Note: it is necessary to treat option as an unsigned int, * with the corresponding cast to a signed int to insure that the * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |