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From: | maheen butt |
Subject: | [Qemu-devel] forking with x86_64 |
Date: | Wed, 12 Jan 2011 02:17:53 -0800 (PST) |
hi why qemu does not provide NPTL support for x86 in user mode? is there any big hindrance behind it? I did a small experiment I make a program with fork system call and give its executable to qemu-x86_64 out put shows it does not create child. the I commented out this if block of linux-user/syscall.c if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) return -EINVAL; so that it can fork now as next line of code is this fork_start(); ret = fork(); now it started working, the child has created. if it is so simple then wat is the hurdle that original qemu code can not run fork'ed program? REGARDS |
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