I've attached a patch that adds support for Linux's sync_file_range. I
tested it under x86_64, and added an entry for x86 since I happened to
find the syscall number in my /usr/include directory. Presumably, it's
supported on other architectures too...
The manpage lists "off64_t" as the type for some of the parameters, but
there is no vki_off64_t type, so I used vki_off_t. Should I use
vki_loff_t instead?
Thanks,
Rusty
diff -x 'config*' -x Makefile -x '*.Po' -x debian -r -u valgrind-3.3.0-original/coregrind/m_syswrap/priv_syswrap-linux.h valgrind-3.3.0/coregrind/m_syswrap/priv_syswrap-linux.h
--- valgrind-3.3.0-original/coregrind/m_syswrap/priv_syswrap-linux.h 2007-12-10 15:18:43.000000000 -0800
+++ valgrind-3.3.0/coregrind/m_syswrap/priv_syswrap-linux.h 2007-12-21 11:50:33.000000000 -0800
@@ -220,6 +220,9 @@
DECL_TEMPLATE(linux, sys_rt_sigqueueinfo);
DECL_TEMPLATE(linux, sys_rt_sigsuspend);
+// Linux-specific?
+DECL_TEMPLATE(linux, sys_sync_file_range);
+
/* ---------------------------------------------------------------------
Wrappers for sockets and ipc-ery. These are split into standalone
procedures because x86-linux hides them inside multiplexors
diff -x 'config*' -x Makefile -x '*.Po' -x debian -r -u valgrind-3.3.0-original/coregrind/m_syswrap/syswrap-amd64-linux.c valgrind-3.3.0/coregrind/m_syswrap/syswrap-amd64-linux.c
--- valgrind-3.3.0-original/coregrind/m_syswrap/syswrap-amd64-linux.c 2007-12-10 15:18:43.000000000 -0800
+++ valgrind-3.3.0/coregrind/m_syswrap/syswrap-amd64-linux.c 2007-12-21 11:45:57.000000000 -0800
@@ -1371,6 +1371,8 @@
// LINX_(__NR_unshare, sys_unshare), // 272
LINX_(__NR_set_robust_list, sys_set_robust_list), // 273
LINXY(__NR_get_robust_list, sys_get_robust_list), // 274
+
+ LINX_(__NR_sync_file_range, sys_sync_file_range), // 277
};
const UInt ML_(syscall_table_size) =
diff -x 'config*' -x Makefile -x '*.Po' -x debian -r -u valgrind-3.3.0-original/coregrind/m_syswrap/syswrap-linux.c valgrind-3.3.0/coregrind/m_syswrap/syswrap-linux.c
--- valgrind-3.3.0-original/coregrind/m_syswrap/syswrap-linux.c 2007-12-10 15:18:43.000000000 -0800
+++ valgrind-3.3.0/coregrind/m_syswrap/syswrap-linux.c 2007-12-21 11:55:49.000000000 -0800
@@ -1625,6 +1625,15 @@
POST_MEM_WRITE( ARG3, sizeof(vki_timer_t) );
}
+PRE(sys_sync_file_range)
+{
+ // PRINT("sys_sync_file_range ( %d, %lld, %lld, %d )"
+ // ARG1, ARG2,ARG3,ARG4);
+ PRE_REG_READ4(int, "sync_file_range",
+ int, fd, vki_off_t, offset, vki_off_t, nbytes,
+ unsigned int, flags);
+}
+
PRE(sys_timer_settime)
{
PRINT("sys_timer_settime( %lld, %d, %p, %p )", (ULong)ARG1,ARG2,ARG3,ARG4);
diff -x 'config*' -x Makefile -x '*.Po' -x debian -r -u valgrind-3.3.0-original/coregrind/m_syswrap/syswrap-x86-linux.c valgrind-3.3.0/coregrind/m_syswrap/syswrap-x86-linux.c
--- valgrind-3.3.0-original/coregrind/m_syswrap/syswrap-x86-linux.c 2007-12-10 15:18:43.000000000 -0800
+++ valgrind-3.3.0/coregrind/m_syswrap/syswrap-x86-linux.c 2008-01-03 14:24:01.000000000 -0800
@@ -2217,6 +2217,9 @@
LINX_(__NR_set_robust_list, sys_set_robust_list), // 311
LINXY(__NR_get_robust_list, sys_get_robust_list), // 312
+ LINX_(__NR_sync_file_range, sys_sync_file_range), // 314
+
+
LINX_(__NR_utimensat, sys_utimensat), // 320
};
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Valgrind-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/valgrind-developers
