patches/strace/4.5.15/120-fix-arm-bad-syscall.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jan 09 16:05:01 2010 +0100 (2010-01-09)
changeset 1719 5c0d326c2cea
parent 746 b150d6f590fc
permissions -rw-r--r--
libc/glibc: correctly handle dual-bitness archs

If the selected ARCH is dual-bitness (eg. supports 32- and 64-bit),
then we need to know the correct place where to fetch some headers.
Currently, this applies only to x86 variants: i386 and x86_64.
     1 diff -dur strace-4.5.15.orig/syscall.c strace-4.5.15/syscall.c
     2 --- strace-4.5.15.orig/syscall.c	2006-12-21 23:13:33.000000000 +0100
     3 +++ strace-4.5.15/syscall.c	2007-07-14 19:21:44.000000000 +0200
     4 @@ -1045,6 +1045,15 @@
     5  		/*
     6  		 * Note: we only deal with only 32-bit CPUs here.
     7  		 */
     8 +
     9 +		if (!(tcp->flags & TCB_INSYSCALL) &&
    10 +		    (tcp->flags & TCB_WAITEXECVE)) {
    11 +			/* caught a fake syscall from the execve's exit */
    12 +			tcp->flags &= ~TCB_WAITEXECVE;
    13 +			return 0;
    14 +		}
    15 + 
    16 +
    17  		if (regs.ARM_cpsr & 0x20) {
    18  			/*
    19  			 * Get the Thumb-mode system call number