From: Sebastian Andrzej Siewior <bige...@linutronix.de> The powerpc port won't compile and abort with "Error: operand out of range" because the TIF_NEED_RESCHED_LAZY uses bit 20 which is larger than 15 which is the upper limit. Swap it with TIF_32BIT and fixup the assembly in one assembly file to get it to compile again.
Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de> To fix the following build error for powerpc, backport a commit released with v4.18.5-rt3(https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?h=linux-4.18.y-rt&id=7bcb4eb241e37d111cbca61a86ea0da180a6f2b3). arch/powerpc/kernel/entry_32.S: Assembler messages: arch/powerpc/kernel/entry_32.S:384: Error: operand out of range (0x000000000010ffef is not between 0x0000000000000000 and 0x000000000000ffff) ... Signed-off-by: He Zhe <zhe...@windriver.com> --- This is for preempt-rt/base. arch/powerpc/include/asm/thread_info.h | 4 ++-- arch/powerpc/kernel/entry_64.S | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index 4317598..15c2c09 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -82,7 +82,7 @@ extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src #define TIF_SIGPENDING 1 /* signal pending */ #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ #define TIF_FSCHECK 3 /* Check FS is USER_DS on return */ -#define TIF_32BIT 4 /* 32 bit binary */ +#define TIF_NEED_RESCHED_LAZY 4 /* lazy rescheduling necessary */ #define TIF_RESTORE_TM 5 /* need to restore TM FP/VEC/VSX */ #define TIF_PATCH_PENDING 6 /* pending live patching update */ #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ @@ -101,7 +101,7 @@ extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src #define TIF_ELF2ABI 18 /* function descriptors must die! */ #endif #define TIF_POLLING_NRFLAG 19 /* true if poll_idle() is polling TIF_NEED_RESCHED */ -#define TIF_NEED_RESCHED_LAZY 20 /* lazy rescheduling necessary */ +#define TIF_32BIT 20 /* 32 bit binary */ /* as above, but as bit values */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 0c519f5..9a2e564 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -168,7 +168,7 @@ system_call: /* label this so stack traces look sane */ * based on caller's run-mode / personality. */ ld r11,SYS_CALL_TABLE@toc(2) - andi. r10,r10,_TIF_32BIT + andis. r10,r10,_TIF_32BIT@h beq 15f addi r11,r11,8 /* use 32-bit syscall entries */ clrldi r3,r3,32 -- 2.7.4 -- _______________________________________________ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
