patches/strace/4.5.16/120-fix-arm-bad-syscall.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Oct 14 17:42:10 2008 +0000 (2008-10-14)
changeset 929 7c958fb04f28
parent 746 b150d6f590fc
permissions -rw-r--r--
Sample config for e500v2 toolchain

On Tuesday 14 October 2008 17:05:31 Nate Case wrote:
> This is a sample config file for Freescale e500v2 processors (e.g.,
> MPC8548, MPC8572). It uses eglibc (for e500/SPE patches) and a recent
> gcc (4.3.1, for e500v2 DPFP support) and will generate appropriate
> dual-precision floating point instructions by default.
>
> Note: If building a Linux kernel with this toolchain, you will want to
> make sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE
> ABI/instructions from getting into the kernel (which is currently
> unsupported). At this time, the kernel build system only passes
> -mno-spe by default (this should be fixed soon hopefully).
>
> A binutils snapshot is used to fix a bug present in 2.18 preventing
> U-Boot from being compiled (CodeSourcery issue #2297: internal.h
> (ELF_IS_SECTION_IN_SEGMENT): Adjust to cope with segments at the end of
> memory).

Obsoletes the powerpc-unknown-linux-gnuspe sample, so remove it.

/trunk/samples/powerpc-e500v2-linux-gnuspe/crosstool.config | 307 307 0 0 +++++++++++++++++++
1 file changed, 307 insertions(+)
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diff -dur strace-4.5.16.orig/syscall.c strace-4.5.16/syscall.c
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--- strace-4.5.16.orig/syscall.c	2006-12-21 23:13:33.000000000 +0100
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+++ strace-4.5.16/syscall.c	2007-07-14 19:21:44.000000000 +0200
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@@ -1045,6 +1045,15 @@
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 		/*
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 		 * Note: we only deal with only 32-bit CPUs here.
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 		 */
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+
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+		if (!(tcp->flags & TCB_INSYSCALL) &&
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+		    (tcp->flags & TCB_WAITEXECVE)) {
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+			/* caught a fake syscall from the execve's exit */
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+			tcp->flags &= ~TCB_WAITEXECVE;
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+			return 0;
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+		}
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+
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+
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 		if (regs.ARM_cpsr & 0x20) {
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 			/*
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 			 * Get the Thumb-mode system call number