mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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9e3f544d79
When using the Java Extension Module hardware, a Java stack underflow or overflow trap may cause the system to enter an infinite exception loop. Although there's no kernel support for the Java hardware yet, we need to be able to recover from this situation and keep the system running. This patch adds code to detect and fixup this situation in the critical exception handler and terminate the faulting process. We may have to rethink how to handle this more gracefully when the necessary kernel support for hardware-accelerated Java is added. Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
27 lines
766 B
C
27 lines
766 B
C
/*
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* Generate definitions needed by assembly language modules.
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* This code generates raw asm output which is post-processed
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* to extract and format the required data.
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*/
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#include <linux/mm.h>
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#include <linux/sched.h>
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#include <linux/thread_info.h>
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#include <linux/kbuild.h>
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void foo(void)
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{
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OFFSET(TI_task, thread_info, task);
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OFFSET(TI_exec_domain, thread_info, exec_domain);
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OFFSET(TI_flags, thread_info, flags);
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OFFSET(TI_cpu, thread_info, cpu);
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OFFSET(TI_preempt_count, thread_info, preempt_count);
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OFFSET(TI_rar_saved, thread_info, rar_saved);
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OFFSET(TI_rsr_saved, thread_info, rsr_saved);
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OFFSET(TI_restart_block, thread_info, restart_block);
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BLANK();
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OFFSET(TSK_active_mm, task_struct, active_mm);
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BLANK();
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OFFSET(MM_pgd, mm_struct, pgd);
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}
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