377fad3acb
If there's a segfault inside the kernel, we want a dump of the registers at the point of the segfault, not the registers at the point of calling panic or the last userspace registers. sig_handler_common_skas now uses a static register set in the case of a SIGSEGV to avoid messing up the process registers if the segfault turns out to be non-fatal. The architecture sigcontext-to-pt_regs copying code was repurposed to copy data out of the SEGV stack frame. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
31 lines
908 B
C
31 lines
908 B
C
/* for use by sys-$SUBARCH/kernel-offsets.c */
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DEFINE(KERNEL_MADV_REMOVE, MADV_REMOVE);
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#ifdef CONFIG_MODE_TT
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OFFSET(HOST_TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid);
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#endif
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OFFSET(HOST_TASK_REGS, task_struct, thread.regs);
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OFFSET(HOST_TASK_PID, task_struct, pid);
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DEFINE(UM_KERN_PAGE_SIZE, PAGE_SIZE);
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DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC);
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DEFINE_STR(UM_KERN_EMERG, KERN_EMERG);
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DEFINE_STR(UM_KERN_ALERT, KERN_ALERT);
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DEFINE_STR(UM_KERN_CRIT, KERN_CRIT);
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DEFINE_STR(UM_KERN_ERR, KERN_ERR);
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DEFINE_STR(UM_KERN_WARNING, KERN_WARNING);
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DEFINE_STR(UM_KERN_NOTICE, KERN_NOTICE);
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DEFINE_STR(UM_KERN_INFO, KERN_INFO);
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DEFINE_STR(UM_KERN_DEBUG, KERN_DEBUG);
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DEFINE(UM_ELF_CLASS, ELF_CLASS);
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DEFINE(UM_ELFCLASS32, ELFCLASS32);
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DEFINE(UM_ELFCLASS64, ELFCLASS64);
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DEFINE(UM_NR_CPUS, NR_CPUS);
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/* For crypto assembler code. */
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DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
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