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Commit 49d1cb2b authored by Helge Deller's avatar Helge Deller
Browse files

parisc: improve SIGBUS/SIGSEGV error reporting 



This patch fixes most of the Linux Test Project testcases, e.g. fstat05.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent 38c79373

arch/parisc/mm/fault.c

+20 −2
Original line number Diff line number Diff line
@@ -282,16 +282,34 @@ bad_area: 
#endif

		switch (code) {

		case 15:	/* Data TLB miss fault/Data page fault */

			/* send SIGSEGV when outside of vma */

			if (!vma ||

			    address < vma->vm_start || address > vma->vm_end) {

				si.si_signo = SIGSEGV;

				si.si_code = SEGV_MAPERR;

				break;

			}



			/* send SIGSEGV for wrong permissions */

			if ((vma->vm_flags & acc_type) != acc_type) {

				si.si_signo = SIGSEGV;

				si.si_code = SEGV_ACCERR;

				break;

			}



			/* probably address is outside of mapped file */

			/* fall through */

		case 17:	/* NA data TLB miss / page fault */

		case 18:	/* Unaligned access - PCXS only */

			si.si_signo = SIGBUS;

			si.si_code = BUS_ADRERR;

			si.si_code = (code == 18) ? BUS_ADRALN : BUS_ADRERR;

			break;

		case 16:	/* Non-access instruction TLB miss fault */

		case 26:	/* PCXL: Data memory access rights trap */

		default:

			si.si_signo = SIGSEGV;

			si.si_code = SEGV_MAPERR;

			si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;

			break;

		}

		si.si_errno = 0;

		si.si_addr = (void __user *) address;