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[Qemu-devel] Syscall 269
From: |
James Pellow |
Subject: |
[Qemu-devel] Syscall 269 |
Date: |
Thu, 18 Nov 2004 01:38:46 -0800 |
User-agent: |
KMail/1.7.1 |
Hi All,
I am trying to chroot to a gentoo flavor of arm linux on my AMD tbird-1.4GHz.
I have set up binfmt_misc and qemu to allow me to do the chroot, and all
seems to be working well. Now I wanted to emerge some stuff, and I get the
following message:
qemu: Unsupported syscall: 269.
Looking at the arm linux kernel source, I see that 269 is utimes. Looking at
the source code for qemu it seems that all I have to do is to add a define
for TARGET_NR_utimes in all linux-user/*/syscall_nr.h and then add a new case
in linux-user/syscall.c.
So, I gave it a shot. The patch is at the bottom of this message. This is
the first time I have looked at the qemu sources, so I am likely missing
something, but the patch does seem to allow emerge to work properly under
gentoo. If a correct implementation requires more work, I am happy to do
that too, just let me know. BTW, I am not subscribed to this list to please
CC me.
Many thanks for a wonderful app.
Cheers,
--
*****************************
James A. Pellow, President
Alent Design Solutions
www.alentdesignsolutions.com
(509) 526-0682
*****************************
diff -ruN qemu-0.6.1/linux-user/arm/syscall_nr.h
qemu-0.6.1_new/linux-user/arm/syscall_nr.h
--- qemu-0.6.1/linux-user/arm/syscall_nr.h 2004-11-14 12:51:33.000000000
-0800
+++ qemu-0.6.1_new/linux-user/arm/syscall_nr.h 2004-11-18 00:58:44.973757936
-0800
@@ -259,3 +259,5 @@
/* 254 for set_thread_area */
/* 255 for get_thread_area */
/* 256 for set_tid_address */
+#define TARGET_NR_utimes (269)
+
diff -ruN qemu-0.6.1/linux-user/i386/syscall_nr.h
qemu-0.6.1_new/linux-user/i386/syscall_nr.h
--- qemu-0.6.1/linux-user/i386/syscall_nr.h 2004-11-14 12:51:33.000000000
-0800
+++ qemu-0.6.1_new/linux-user/i386/syscall_nr.h 2004-11-18 01:28:59.324934632
-0800
@@ -271,3 +271,5 @@
#define TARGET_NR_clock_getres (TARGET_NR_timer_create+7)
#define TARGET_NR_clock_nanosleep (TARGET_NR_timer_create+8)
+#define TARGET_NR_utimes 271
+
diff -ruN qemu-0.6.1/linux-user/syscall.c qemu-0.6.1_new/linux-user/syscall.c
--- qemu-0.6.1/linux-user/syscall.c 2004-11-14 12:51:33.000000000 -0800
+++ qemu-0.6.1_new/linux-user/syscall.c 2004-11-18 01:15:54.561236848 -0800
@@ -3025,6 +3025,10 @@
case TARGET_NR_get_thread_area:
goto unimplemented_nowarn;
#endif
+ case TARGET_NR_utimes:
+ ret = get_errno(utimes((const char *)arg1,
+ (const struct timeval *)arg2));
+ break;
default:
unimplemented:
gemu_log("qemu: Unsupported syscall: %d\n", num);
- [Qemu-devel] Syscall 269,
James Pellow <=