[Patch v2] Add mips*-linux* catch syscall support.

[Patch v2] Add mips*-linux* catch syscall support.

[David Daney]

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Change in v2: Simplify memory allocation in 
mips_linux_get_syscall_number() as suggested by Nathen Froyd.

 From the original posting:

This patch adds catch syscall support for all three MIPS Linux ABIs 
(o32, n32 and n64).

For the most part this works as expected, except for one small detail. 
The MIPS Linux syscall ABI passes the syscall number in register v0 when 
making a syscall, but it also uses the same register to return 
information back from the syscall.  This clobbering of the syscall 
number is currently not well handled by GDB.  We PASS all the tests for 
'(call to syscall ???)', but FAIL those for (returned from syscall ???), 
because GDB expects to be able to obtain the syscall number on syscall 
exit.  For MIPS Linux it will never be available.

I think the real fix for this is to improve the core 'catch syscall' 
support so that it can either remember the syscall number, or not try to 
print out bogus information, but that would be something for a different 
patch.

Tested on mips-linux, and mips64-linux.

OK to commit?

2011-01-24  David Daney  <ddaney@caviumnetworks.com>

	* mips-linux-tdep.c: Include xml-syscall.h.
	(mips_linux_get_syscall_number): New function.
	(mips_linux_init_abi): Add calls to
	mips_linux_get_syscall_number() and set_xml_syscall_file_name().
	* data-directory/Makefile.in (SYSCALLS_FILES): Add
	mips-o32-linux.xml, mips-n32-linux.xml and mips-n64-linux.xml
	* syscalls/mips-n32-linux.xml: New file.
	* syscalls/mips-n64-linux.xml: New file.
	* syscalls/mips-o32-linux.xml: New file.

2011-01-24  David Daney  <ddaney@caviumnetworks.com>

	* gdb.base/catch-syscall.exp: Enable for mips*-linux*.

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Index: gdb/mips-linux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/mips-linux-tdep.c,v
retrieving revision 1.86
diff -u -p -r1.86 mips-linux-tdep.c
--- gdb/mips-linux-tdep.c	9 Jan 2011 03:20:33 -0000	1.86
+++ gdb/mips-linux-tdep.c	24 Jan 2011 19:39:52 -0000
@@ -40,6 +40,7 @@
 #include "mips-linux-tdep.h"
 #include "glibc-tdep.h"
 #include "linux-tdep.h"
+#include "xml-syscall.h"
 
 static struct target_so_ops mips_svr4_so_ops;
 
@@ -1206,6 +1207,36 @@ mips_linux_syscall_next_pc (struct frame
 
   return pc + 4;
 }
+/* Return the current system call's number present in the
+   v0 register.  When the function fails, it returns -1.  */
+static LONGEST
+mips_linux_get_syscall_number (struct gdbarch *gdbarch,
+                              ptid_t ptid)
+{
+  struct regcache *regcache = get_thread_regcache (ptid);
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  int regsize = register_size (gdbarch, MIPS_V0_REGNUM);
+  /* The content of a register */
+  gdb_byte buf[8];
+  /* The result */
+  LONGEST ret;
+
+  /* Make sure we're in a known ABI */
+  gdb_assert (tdep->mips_abi == MIPS_ABI_O32
+	      || tdep->mips_abi == MIPS_ABI_N32
+	      || tdep->mips_abi == MIPS_ABI_N64);
+
+  gdb_assert (regsize <= sizeof (buf));
+
+  /* Getting the system call number from the register.
+     syscall number is in v0 or $2.  */
+  regcache_cooked_read (regcache, MIPS_V0_REGNUM, buf);
+
+  ret = extract_signed_integer (buf, regsize, byte_order);
+
+  return ret;
+}
 
 /* Initialize one of the GNU/Linux OS ABIs.  */
 
@@ -1219,6 +1250,9 @@ mips_linux_init_abi (struct gdbarch_info
 
   linux_init_abi (info, gdbarch);
 
+  /* Get the syscall number from the arch's register.  */
+  set_gdbarch_get_syscall_number (gdbarch, mips_linux_get_syscall_number);
+
   switch (abi)
     {
       case MIPS_ABI_O32:
@@ -1228,6 +1262,7 @@ mips_linux_init_abi (struct gdbarch_info
 	  (gdbarch, svr4_ilp32_fetch_link_map_offsets);
 	tramp_frame_prepend_unwinder (gdbarch, &mips_linux_o32_sigframe);
 	tramp_frame_prepend_unwinder (gdbarch, &mips_linux_o32_rt_sigframe);
+	set_xml_syscall_file_name ("syscalls/mips-o32-linux.xml");
 	break;
       case MIPS_ABI_N32:
 	set_gdbarch_get_longjmp_target (gdbarch,
@@ -1241,6 +1276,7 @@ mips_linux_init_abi (struct gdbarch_info
 	   does not distinguish between quiet and signalling NaNs).  */
 	set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
 	tramp_frame_prepend_unwinder (gdbarch, &mips_linux_n32_rt_sigframe);
+	set_xml_syscall_file_name ("syscalls/mips-n32-linux.xml");
 	break;
       case MIPS_ABI_N64:
 	set_gdbarch_get_longjmp_target (gdbarch,
@@ -1254,6 +1290,7 @@ mips_linux_init_abi (struct gdbarch_info
 	   does not distinguish between quiet and signalling NaNs).  */
 	set_gdbarch_long_double_format (gdbarch, floatformats_ia64_quad);
 	tramp_frame_prepend_unwinder (gdbarch, &mips_linux_n64_rt_sigframe);
+	set_xml_syscall_file_name ("syscalls/mips-n64-linux.xml");
 	break;
       default:
 	break;
Index: gdb/data-directory/Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/data-directory/Makefile.in,v
retrieving revision 1.7
diff -u -p -r1.7 Makefile.in
--- gdb/data-directory/Makefile.in	1 Jan 2011 15:33:22 -0000	1.7
+++ gdb/data-directory/Makefile.in	24 Jan 2011 19:39:52 -0000
@@ -46,7 +46,8 @@ SYSCALLS_FILES = \
 	gdb-syscalls.dtd \
 	ppc-linux.xml ppc64-linux.xml \
 	i386-linux.xml amd64-linux.xml \
-	sparc-linux.xml sparc64-linux.xml
+	sparc-linux.xml sparc64-linux.xml \
+	mips-o32-linux.xml mips-n32-linux.xml mips-n64-linux.xml
 
 PYTHON_DIR = python
 PYTHON_INSTALL_DIR = $(DESTDIR)$(GDB_DATADIR)/$(PYTHON_DIR)
Index: gdb/syscalls/mips-n32-linux.xml
===================================================================
RCS file: gdb/syscalls/mips-n32-linux.xml
diff -N gdb/syscalls/mips-n32-linux.xml
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gdb/syscalls/mips-n32-linux.xml	24 Jan 2011 19:39:52 -0000
@@ -0,0 +1,319 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2011 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!DOCTYPE feature SYSTEM "gdb-syscalls.dtd">
+
+<!-- This file was generated using the following file:
+     
+     /usr/src/linux/arch/mips/include/asm/unistd.h
+
+     The file mentioned above belongs to the Linux Kernel.  -->
+
+<syscalls_info>
+  <syscall name="read" number="6000"/>
+  <syscall name="write" number="6001"/>
+  <syscall name="open" number="6002"/>
+  <syscall name="close" number="6003"/>
+  <syscall name="stat" number="6004"/>
+  <syscall name="fstat" number="6005"/>
+  <syscall name="lstat" number="6006"/>
+  <syscall name="poll" number="6007"/>
+  <syscall name="lseek" number="6008"/>
+  <syscall name="mmap" number="6009"/>
+  <syscall name="mprotect" number="6010"/>
+  <syscall name="munmap" number="6011"/>
+  <syscall name="brk" number="6012"/>
+  <syscall name="rt_sigaction" number="6013"/>
+  <syscall name="rt_sigprocmask" number="6014"/>
+  <syscall name="ioctl" number="6015"/>
+  <syscall name="pread64" number="6016"/>
+  <syscall name="pwrite64" number="6017"/>
+  <syscall name="readv" number="6018"/>
+  <syscall name="writev" number="6019"/>
+  <syscall name="access" number="6020"/>
+  <syscall name="pipe" number="6021"/>
+  <syscall name="_newselect" number="6022"/>
+  <syscall name="sched_yield" number="6023"/>
+  <syscall name="mremap" number="6024"/>
+  <syscall name="msync" number="6025"/>
+  <syscall name="mincore" number="6026"/>
+  <syscall name="madvise" number="6027"/>
+  <syscall name="shmget" number="6028"/>
+  <syscall name="shmat" number="6029"/>
+  <syscall name="shmctl" number="6030"/>
+  <syscall name="dup" number="6031"/>
+  <syscall name="dup2" number="6032"/>
+  <syscall name="pause" number="6033"/>
+  <syscall name="nanosleep" number="6034"/>
+  <syscall name="getitimer" number="6035"/>
+  <syscall name="setitimer" number="6036"/>
+  <syscall name="alarm" number="6037"/>
+  <syscall name="getpid" number="6038"/>
+  <syscall name="sendfile" number="6039"/>
+  <syscall name="socket" number="6040"/>
+  <syscall name="connect" number="6041"/>
+  <syscall name="accept" number="6042"/>
+  <syscall name="sendto" number="6043"/>
+  <syscall name="recvfrom" number="6044"/>
+  <syscall name="sendmsg" number="6045"/>
+  <syscall name="recvmsg" number="6046"/>
+  <syscall name="shutdown" number="6047"/>
+  <syscall name="bind" number="6048"/>
+  <syscall name="listen" number="6049"/>
+  <syscall name="getsockname" number="6050"/>
+  <syscall name="getpeername" number="6051"/>
+  <syscall name="socketpair" number="6052"/>
+  <syscall name="setsockopt" number="6053"/>
+  <syscall name="getsockopt" number="6054"/>
+  <syscall name="clone" number="6055"/>
+  <syscall name="fork" number="6056"/>
+  <syscall name="execve" number="6057"/>
+  <syscall name="exit" number="6058"/>
+  <syscall name="wait4" number="6059"/>
+  <syscall name="kill" number="6060"/>
+  <syscall name="uname" number="6061"/>
+  <syscall name="semget" number="6062"/>
+  <syscall name="semop" number="6063"/>
+  <syscall name="semctl" number="6064"/>
+  <syscall name="shmdt" number="6065"/>
+  <syscall name="msgget" number="6066"/>
+  <syscall name="msgsnd" number="6067"/>
+  <syscall name="msgrcv" number="6068"/>
+  <syscall name="msgctl" number="6069"/>
+  <syscall name="fcntl" number="6070"/>
+  <syscall name="flock" number="6071"/>
+  <syscall name="fsync" number="6072"/>
+  <syscall name="fdatasync" number="6073"/>
+  <syscall name="truncate" number="6074"/>
+  <syscall name="ftruncate" number="6075"/>
+  <syscall name="getdents" number="6076"/>
+  <syscall name="getcwd" number="6077"/>
+  <syscall name="chdir" number="6078"/>
+  <syscall name="fchdir" number="6079"/>
+  <syscall name="rename" number="6080"/>
+  <syscall name="mkdir" number="6081"/>
+  <syscall name="rmdir" number="6082"/>
+  <syscall name="creat" number="6083"/>
+  <syscall name="link" number="6084"/>
+  <syscall name="unlink" number="6085"/>
+  <syscall name="symlink" number="6086"/>
+  <syscall name="readlink" number="6087"/>
+  <syscall name="chmod" number="6088"/>
+  <syscall name="fchmod" number="6089"/>
+  <syscall name="chown" number="6090"/>
+  <syscall name="fchown" number="6091"/>
+  <syscall name="lchown" number="6092"/>
+  <syscall name="umask" number="6093"/>
+  <syscall name="gettimeofday" number="6094"/>
+  <syscall name="getrlimit" number="6095"/>
+  <syscall name="getrusage" number="6096"/>
+  <syscall name="sysinfo" number="6097"/>
+  <syscall name="times" number="6098"/>
+  <syscall name="ptrace" number="6099"/>
+  <syscall name="getuid" number="6100"/>
+  <syscall name="syslog" number="6101"/>
+  <syscall name="getgid" number="6102"/>
+  <syscall name="setuid" number="6103"/>
+  <syscall name="setgid" number="6104"/>
+  <syscall name="geteuid" number="6105"/>
+  <syscall name="getegid" number="6106"/>
+  <syscall name="setpgid" number="6107"/>
+  <syscall name="getppid" number="6108"/>
+  <syscall name="getpgrp" number="6109"/>
+  <syscall name="setsid" number="6110"/>
+  <syscall name="setreuid" number="6111"/>
+  <syscall name="setregid" number="6112"/>
+  <syscall name="getgroups" number="6113"/>
+  <syscall name="setgroups" number="6114"/>
+  <syscall name="setresuid" number="6115"/>
+  <syscall name="getresuid" number="6116"/>
+  <syscall name="setresgid" number="6117"/>
+  <syscall name="getresgid" number="6118"/>
+  <syscall name="getpgid" number="6119"/>
+  <syscall name="setfsuid" number="6120"/>
+  <syscall name="setfsgid" number="6121"/>
+  <syscall name="getsid" number="6122"/>
+  <syscall name="capget" number="6123"/>
+  <syscall name="capset" number="6124"/>
+  <syscall name="rt_sigpending" number="6125"/>
+  <syscall name="rt_sigtimedwait" number="6126"/>
+  <syscall name="rt_sigqueueinfo" number="6127"/>
+  <syscall name="rt_sigsuspend" number="6128"/>
+  <syscall name="sigaltstack" number="6129"/>
+  <syscall name="utime" number="6130"/>
+  <syscall name="mknod" number="6131"/>
+  <syscall name="personality" number="6132"/>
+  <syscall name="ustat" number="6133"/>
+  <syscall name="statfs" number="6134"/>
+  <syscall name="fstatfs" number="6135"/>
+  <syscall name="sysfs" number="6136"/>
+  <syscall name="getpriority" number="6137"/>
+  <syscall name="setpriority" number="6138"/>
+  <syscall name="sched_setparam" number="6139"/>
+  <syscall name="sched_getparam" number="6140"/>
+  <syscall name="sched_setscheduler" number="6141"/>
+  <syscall name="sched_getscheduler" number="6142"/>
+  <syscall name="sched_get_priority_max" number="6143"/>
+  <syscall name="sched_get_priority_min" number="6144"/>
+  <syscall name="sched_rr_get_interval" number="6145"/>
+  <syscall name="mlock" number="6146"/>
+  <syscall name="munlock" number="6147"/>
+  <syscall name="mlockall" number="6148"/>
+  <syscall name="munlockall" number="6149"/>
+  <syscall name="vhangup" number="6150"/>
+  <syscall name="pivot_root" number="6151"/>
+  <syscall name="_sysctl" number="6152"/>
+  <syscall name="prctl" number="6153"/>
+  <syscall name="adjtimex" number="6154"/>
+  <syscall name="setrlimit" number="6155"/>
+  <syscall name="chroot" number="6156"/>
+  <syscall name="sync" number="6157"/>
+  <syscall name="acct" number="6158"/>
+  <syscall name="settimeofday" number="6159"/>
+  <syscall name="mount" number="6160"/>
+  <syscall name="umount2" number="6161"/>
+  <syscall name="swapon" number="6162"/>
+  <syscall name="swapoff" number="6163"/>
+  <syscall name="reboot" number="6164"/>
+  <syscall name="sethostname" number="6165"/>
+  <syscall name="setdomainname" number="6166"/>
+  <syscall name="create_module" number="6167"/>
+  <syscall name="init_module" number="6168"/>
+  <syscall name="delete_module" number="6169"/>
+  <syscall name="get_kernel_syms" number="6170"/>
+  <syscall name="query_module" number="6171"/>
+  <syscall name="quotactl" number="6172"/>
+  <syscall name="nfsservctl" number="6173"/>
+  <syscall name="getpmsg" number="6174"/>
+  <syscall name="putpmsg" number="6175"/>
+  <syscall name="afs_syscall" number="6176"/>
+  <syscall name="reserved177" number="6177"/>
+  <syscall name="gettid" number="6178"/>
+  <syscall name="readahead" number="6179"/>
+  <syscall name="setxattr" number="6180"/>
+  <syscall name="lsetxattr" number="6181"/>
+  <syscall name="fsetxattr" number="6182"/>
+  <syscall name="getxattr" number="6183"/>
+  <syscall name="lgetxattr" number="6184"/>
+  <syscall name="fgetxattr" number="6185"/>
+  <syscall name="listxattr" number="6186"/>
+  <syscall name="llistxattr" number="6187"/>
+  <syscall name="flistxattr" number="6188"/>
+  <syscall name="removexattr" number="6189"/>
+  <syscall name="lremovexattr" number="6190"/>
+  <syscall name="fremovexattr" number="6191"/>
+  <syscall name="tkill" number="6192"/>
+  <syscall name="reserved193" number="6193"/>
+  <syscall name="futex" number="6194"/>
+  <syscall name="sched_setaffinity" number="6195"/>
+  <syscall name="sched_getaffinity" number="6196"/>
+  <syscall name="cacheflush" number="6197"/>
+  <syscall name="cachectl" number="6198"/>
+  <syscall name="sysmips" number="6199"/>
+  <syscall name="io_setup" number="6200"/>
+  <syscall name="io_destroy" number="6201"/>
+  <syscall name="io_getevents" number="6202"/>
+  <syscall name="io_submit" number="6203"/>
+  <syscall name="io_cancel" number="6204"/>
+  <syscall name="exit_group" number="6205"/>
+  <syscall name="lookup_dcookie" number="6206"/>
+  <syscall name="epoll_create" number="6207"/>
+  <syscall name="epoll_ctl" number="6208"/>
+  <syscall name="epoll_wait" number="6209"/>
+  <syscall name="remap_file_pages" number="6210"/>
+  <syscall name="rt_sigreturn" number="6211"/>
+  <syscall name="fcntl64" number="6212"/>
+  <syscall name="set_tid_address" number="6213"/>
+  <syscall name="restart_syscall" number="6214"/>
+  <syscall name="semtimedop" number="6215"/>
+  <syscall name="fadvise64" number="6216"/>
+  <syscall name="statfs64" number="6217"/>
+  <syscall name="fstatfs64" number="6218"/>
+  <syscall name="sendfile64" number="6219"/>
+  <syscall name="timer_create" number="6220"/>
+  <syscall name="timer_settime" number="6221"/>
+  <syscall name="timer_gettime" number="6222"/>
+  <syscall name="timer_getoverrun" number="6223"/>
+  <syscall name="timer_delete" number="6224"/>
+  <syscall name="clock_settime" number="6225"/>
+  <syscall name="clock_gettime" number="6226"/>
+  <syscall name="clock_getres" number="6227"/>
+  <syscall name="clock_nanosleep" number="6228"/>
+  <syscall name="tgkill" number="6229"/>
+  <syscall name="utimes" number="6230"/>
+  <syscall name="mbind" number="6231"/>
+  <syscall name="get_mempolicy" number="6232"/>
+  <syscall name="set_mempolicy" number="6233"/>
+  <syscall name="mq_open" number="6234"/>
+  <syscall name="mq_unlink" number="6235"/>
+  <syscall name="mq_timedsend" number="6236"/>
+  <syscall name="mq_timedreceive" number="6237"/>
+  <syscall name="mq_notify" number="6238"/>
+  <syscall name="mq_getsetattr" number="6239"/>
+  <syscall name="vserver" number="6240"/>
+  <syscall name="waitid" number="6241"/>
+  <syscall name="add_key" number="6243"/>
+  <syscall name="request_key" number="6244"/>
+  <syscall name="keyctl" number="6245"/>
+  <syscall name="set_thread_area" number="6246"/>
+  <syscall name="inotify_init" number="6247"/>
+  <syscall name="inotify_add_watch" number="6248"/>
+  <syscall name="inotify_rm_watch" number="6249"/>
+  <syscall name="migrate_pages" number="6250"/>
+  <syscall name="openat" number="6251"/>
+  <syscall name="mkdirat" number="6252"/>
+  <syscall name="mknodat" number="6253"/>
+  <syscall name="fchownat" number="6254"/>
+  <syscall name="futimesat" number="6255"/>
+  <syscall name="newfstatat" number="6256"/>
+  <syscall name="unlinkat" number="6257"/>
+  <syscall name="renameat" number="6258"/>
+  <syscall name="linkat" number="6259"/>
+  <syscall name="symlinkat" number="6260"/>
+  <syscall name="readlinkat" number="6261"/>
+  <syscall name="fchmodat" number="6262"/>
+  <syscall name="faccessat" number="6263"/>
+  <syscall name="pselect6" number="6264"/>
+  <syscall name="ppoll" number="6265"/>
+  <syscall name="unshare" number="6266"/>
+  <syscall name="splice" number="6267"/>
+  <syscall name="sync_file_range" number="6268"/>
+  <syscall name="tee" number="6269"/>
+  <syscall name="vmsplice" number="6270"/>
+  <syscall name="move_pages" number="6271"/>
+  <syscall name="set_robust_list" number="6272"/>
+  <syscall name="get_robust_list" number="6273"/>
+  <syscall name="kexec_load" number="6274"/>
+  <syscall name="getcpu" number="6275"/>
+  <syscall name="epoll_pwait" number="6276"/>
+  <syscall name="ioprio_set" number="6277"/>
+  <syscall name="ioprio_get" number="6278"/>
+  <syscall name="utimensat" number="6279"/>
+  <syscall name="signalfd" number="6280"/>
+  <syscall name="timerfd" number="6281"/>
+  <syscall name="eventfd" number="6282"/>
+  <syscall name="fallocate" number="6283"/>
+  <syscall name="timerfd_create" number="6284"/>
+  <syscall name="timerfd_gettime" number="6285"/>
+  <syscall name="timerfd_settime" number="6286"/>
+  <syscall name="signalfd4" number="6287"/>
+  <syscall name="eventfd2" number="6288"/>
+  <syscall name="epoll_create1" number="6289"/>
+  <syscall name="dup3" number="6290"/>
+  <syscall name="pipe2" number="6291"/>
+  <syscall name="inotify_init1" number="6292"/>
+  <syscall name="preadv" number="6293"/>
+  <syscall name="pwritev" number="6294"/>
+  <syscall name="rt_tgsigqueueinfo" number="6295"/>
+  <syscall name="perf_event_open" number="6296"/>
+  <syscall name="accept4" number="6297"/>
+  <syscall name="recvmmsg" number="6298"/>
+  <syscall name="getdents64" number="6299"/>
+  <syscall name="fanotify_init" number="6300"/>
+  <syscall name="fanotify_mark" number="6301"/>
+  <syscall name="prlimit64" number="6302"/>
+</syscalls_info>
Index: gdb/syscalls/mips-n64-linux.xml
===================================================================
RCS file: gdb/syscalls/mips-n64-linux.xml
diff -N gdb/syscalls/mips-n64-linux.xml
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gdb/syscalls/mips-n64-linux.xml	24 Jan 2011 19:39:52 -0000
@@ -0,0 +1,312 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2011 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!DOCTYPE feature SYSTEM "gdb-syscalls.dtd">
+
+<!-- This file was generated using the following file:
+     
+     /usr/src/linux/arch/mips/include/asm/unistd.h
+
+     The file mentioned above belongs to the Linux Kernel.  -->
+
+<syscalls_info>
+  <syscall name="read" number="5000"/>
+  <syscall name="write" number="5001"/>
+  <syscall name="open" number="5002"/>
+  <syscall name="close" number="5003"/>
+  <syscall name="stat" number="5004"/>
+  <syscall name="fstat" number="5005"/>
+  <syscall name="lstat" number="5006"/>
+  <syscall name="poll" number="5007"/>
+  <syscall name="lseek" number="5008"/>
+  <syscall name="mmap" number="5009"/>
+  <syscall name="mprotect" number="5010"/>
+  <syscall name="munmap" number="5011"/>
+  <syscall name="brk" number="5012"/>
+  <syscall name="rt_sigaction" number="5013"/>
+  <syscall name="rt_sigprocmask" number="5014"/>
+  <syscall name="ioctl" number="5015"/>
+  <syscall name="pread64" number="5016"/>
+  <syscall name="pwrite64" number="5017"/>
+  <syscall name="readv" number="5018"/>
+  <syscall name="writev" number="5019"/>
+  <syscall name="access" number="5020"/>
+  <syscall name="pipe" number="5021"/>
+  <syscall name="_newselect" number="5022"/>
+  <syscall name="sched_yield" number="5023"/>
+  <syscall name="mremap" number="5024"/>
+  <syscall name="msync" number="5025"/>
+  <syscall name="mincore" number="5026"/>
+  <syscall name="madvise" number="5027"/>
+  <syscall name="shmget" number="5028"/>
+  <syscall name="shmat" number="5029"/>
+  <syscall name="shmctl" number="5030"/>
+  <syscall name="dup" number="5031"/>
+  <syscall name="dup2" number="5032"/>
+  <syscall name="pause" number="5033"/>
+  <syscall name="nanosleep" number="5034"/>
+  <syscall name="getitimer" number="5035"/>
+  <syscall name="setitimer" number="5036"/>
+  <syscall name="alarm" number="5037"/>
+  <syscall name="getpid" number="5038"/>
+  <syscall name="sendfile" number="5039"/>
+  <syscall name="socket" number="5040"/>
+  <syscall name="connect" number="5041"/>
+  <syscall name="accept" number="5042"/>
+  <syscall name="sendto" number="5043"/>
+  <syscall name="recvfrom" number="5044"/>
+  <syscall name="sendmsg" number="5045"/>
+  <syscall name="recvmsg" number="5046"/>
+  <syscall name="shutdown" number="5047"/>
+  <syscall name="bind" number="5048"/>
+  <syscall name="listen" number="5049"/>
+  <syscall name="getsockname" number="5050"/>
+  <syscall name="getpeername" number="5051"/>
+  <syscall name="socketpair" number="5052"/>
+  <syscall name="setsockopt" number="5053"/>
+  <syscall name="getsockopt" number="5054"/>
+  <syscall name="clone" number="5055"/>
+  <syscall name="fork" number="5056"/>
+  <syscall name="execve" number="5057"/>
+  <syscall name="exit" number="5058"/>
+  <syscall name="wait4" number="5059"/>
+  <syscall name="kill" number="5060"/>
+  <syscall name="uname" number="5061"/>
+  <syscall name="semget" number="5062"/>
+  <syscall name="semop" number="5063"/>
+  <syscall name="semctl" number="5064"/>
+  <syscall name="shmdt" number="5065"/>
+  <syscall name="msgget" number="5066"/>
+  <syscall name="msgsnd" number="5067"/>
+  <syscall name="msgrcv" number="5068"/>
+  <syscall name="msgctl" number="5069"/>
+  <syscall name="fcntl" number="5070"/>
+  <syscall name="flock" number="5071"/>
+  <syscall name="fsync" number="5072"/>
+  <syscall name="fdatasync" number="5073"/>
+  <syscall name="truncate" number="5074"/>
+  <syscall name="ftruncate" number="5075"/>
+  <syscall name="getdents" number="5076"/>
+  <syscall name="getcwd" number="5077"/>
+  <syscall name="chdir" number="5078"/>
+  <syscall name="fchdir" number="5079"/>
+  <syscall name="rename" number="5080"/>
+  <syscall name="mkdir" number="5081"/>
+  <syscall name="rmdir" number="5082"/>
+  <syscall name="creat" number="5083"/>
+  <syscall name="link" number="5084"/>
+  <syscall name="unlink" number="5085"/>
+  <syscall name="symlink" number="5086"/>
+  <syscall name="readlink" number="5087"/>
+  <syscall name="chmod" number="5088"/>
+  <syscall name="fchmod" number="5089"/>
+  <syscall name="chown" number="5090"/>
+  <syscall name="fchown" number="5091"/>
+  <syscall name="lchown" number="5092"/>
+  <syscall name="umask" number="5093"/>
+  <syscall name="gettimeofday" number="5094"/>
+  <syscall name="getrlimit" number="5095"/>
+  <syscall name="getrusage" number="5096"/>
+  <syscall name="sysinfo" number="5097"/>
+  <syscall name="times" number="5098"/>
+  <syscall name="ptrace" number="5099"/>
+  <syscall name="getuid" number="5100"/>
+  <syscall name="syslog" number="5101"/>
+  <syscall name="getgid" number="5102"/>
+  <syscall name="setuid" number="5103"/>
+  <syscall name="setgid" number="5104"/>
+  <syscall name="geteuid" number="5105"/>
+  <syscall name="getegid" number="5106"/>
+  <syscall name="setpgid" number="5107"/>
+  <syscall name="getppid" number="5108"/>
+  <syscall name="getpgrp" number="5109"/>
+  <syscall name="setsid" number="5110"/>
+  <syscall name="setreuid" number="5111"/>
+  <syscall name="setregid" number="5112"/>
+  <syscall name="getgroups" number="5113"/>
+  <syscall name="setgroups" number="5114"/>
+  <syscall name="setresuid" number="5115"/>
+  <syscall name="getresuid" number="5116"/>
+  <syscall name="setresgid" number="5117"/>
+  <syscall name="getresgid" number="5118"/>
+  <syscall name="getpgid" number="5119"/>
+  <syscall name="setfsuid" number="5120"/>
+  <syscall name="setfsgid" number="5121"/>
+  <syscall name="getsid" number="5122"/>
+  <syscall name="capget" number="5123"/>
+  <syscall name="capset" number="5124"/>
+  <syscall name="rt_sigpending" number="5125"/>
+  <syscall name="rt_sigtimedwait" number="5126"/>
+  <syscall name="rt_sigqueueinfo" number="5127"/>
+  <syscall name="rt_sigsuspend" number="5128"/>
+  <syscall name="sigaltstack" number="5129"/>
+  <syscall name="utime" number="5130"/>
+  <syscall name="mknod" number="5131"/>
+  <syscall name="personality" number="5132"/>
+  <syscall name="ustat" number="5133"/>
+  <syscall name="statfs" number="5134"/>
+  <syscall name="fstatfs" number="5135"/>
+  <syscall name="sysfs" number="5136"/>
+  <syscall name="getpriority" number="5137"/>
+  <syscall name="setpriority" number="5138"/>
+  <syscall name="sched_setparam" number="5139"/>
+  <syscall name="sched_getparam" number="5140"/>
+  <syscall name="sched_setscheduler" number="5141"/>
+  <syscall name="sched_getscheduler" number="5142"/>
+  <syscall name="sched_get_priority_max" number="5143"/>
+  <syscall name="sched_get_priority_min" number="5144"/>
+  <syscall name="sched_rr_get_interval" number="5145"/>
+  <syscall name="mlock" number="5146"/>
+  <syscall name="munlock" number="5147"/>
+  <syscall name="mlockall" number="5148"/>
+  <syscall name="munlockall" number="5149"/>
+  <syscall name="vhangup" number="5150"/>
+  <syscall name="pivot_root" number="5151"/>
+  <syscall name="_sysctl" number="5152"/>
+  <syscall name="prctl" number="5153"/>
+  <syscall name="adjtimex" number="5154"/>
+  <syscall name="setrlimit" number="5155"/>
+  <syscall name="chroot" number="5156"/>
+  <syscall name="sync" number="5157"/>
+  <syscall name="acct" number="5158"/>
+  <syscall name="settimeofday" number="5159"/>
+  <syscall name="mount" number="5160"/>
+  <syscall name="umount2" number="5161"/>
+  <syscall name="swapon" number="5162"/>
+  <syscall name="swapoff" number="5163"/>
+  <syscall name="reboot" number="5164"/>
+  <syscall name="sethostname" number="5165"/>
+  <syscall name="setdomainname" number="5166"/>
+  <syscall name="create_module" number="5167"/>
+  <syscall name="init_module" number="5168"/>
+  <syscall name="delete_module" number="5169"/>
+  <syscall name="get_kernel_syms" number="5170"/>
+  <syscall name="query_module" number="5171"/>
+  <syscall name="quotactl" number="5172"/>
+  <syscall name="nfsservctl" number="5173"/>
+  <syscall name="getpmsg" number="5174"/>
+  <syscall name="putpmsg" number="5175"/>
+  <syscall name="afs_syscall" number="5176"/>
+  <syscall name="gettid" number="5178"/>
+  <syscall name="readahead" number="5179"/>
+  <syscall name="setxattr" number="5180"/>
+  <syscall name="lsetxattr" number="5181"/>
+  <syscall name="fsetxattr" number="5182"/>
+  <syscall name="getxattr" number="5183"/>
+  <syscall name="lgetxattr" number="5184"/>
+  <syscall name="fgetxattr" number="5185"/>
+  <syscall name="listxattr" number="5186"/>
+  <syscall name="llistxattr" number="5187"/>
+  <syscall name="flistxattr" number="5188"/>
+  <syscall name="removexattr" number="5189"/>
+  <syscall name="lremovexattr" number="5190"/>
+  <syscall name="fremovexattr" number="5191"/>
+  <syscall name="tkill" number="5192"/>
+  <syscall name="futex" number="5194"/>
+  <syscall name="sched_setaffinity" number="5195"/>
+  <syscall name="sched_getaffinity" number="5196"/>
+  <syscall name="cacheflush" number="5197"/>
+  <syscall name="cachectl" number="5198"/>
+  <syscall name="sysmips" number="5199"/>
+  <syscall name="io_setup" number="5200"/>
+  <syscall name="io_destroy" number="5201"/>
+  <syscall name="io_getevents" number="5202"/>
+  <syscall name="io_submit" number="5203"/>
+  <syscall name="io_cancel" number="5204"/>
+  <syscall name="exit_group" number="5205"/>
+  <syscall name="lookup_dcookie" number="5206"/>
+  <syscall name="epoll_create" number="5207"/>
+  <syscall name="epoll_ctl" number="5208"/>
+  <syscall name="epoll_wait" number="5209"/>
+  <syscall name="remap_file_pages" number="5210"/>
+  <syscall name="rt_sigreturn" number="5211"/>
+  <syscall name="set_tid_address" number="5212"/>
+  <syscall name="restart_syscall" number="5213"/>
+  <syscall name="semtimedop" number="5214"/>
+  <syscall name="fadvise64" number="5215"/>
+  <syscall name="timer_create" number="5216"/>
+  <syscall name="timer_settime" number="5217"/>
+  <syscall name="timer_gettime" number="5218"/>
+  <syscall name="timer_getoverrun" number="5219"/>
+  <syscall name="timer_delete" number="5220"/>
+  <syscall name="clock_settime" number="5221"/>
+  <syscall name="clock_gettime" number="5222"/>
+  <syscall name="clock_getres" number="5223"/>
+  <syscall name="clock_nanosleep" number="5224"/>
+  <syscall name="tgkill" number="5225"/>
+  <syscall name="utimes" number="5226"/>
+  <syscall name="mbind" number="5227"/>
+  <syscall name="get_mempolicy" number="5228"/>
+  <syscall name="set_mempolicy" number="5229"/>
+  <syscall name="mq_open" number="5230"/>
+  <syscall name="mq_unlink" number="5231"/>
+  <syscall name="mq_timedsend" number="5232"/>
+  <syscall name="mq_timedreceive" number="5233"/>
+  <syscall name="mq_notify" number="5234"/>
+  <syscall name="mq_getsetattr" number="5235"/>
+  <syscall name="vserver" number="5236"/>
+  <syscall name="waitid" number="5237"/>
+  <syscall name="add_key" number="5239"/>
+  <syscall name="request_key" number="5240"/>
+  <syscall name="keyctl" number="5241"/>
+  <syscall name="set_thread_area" number="5242"/>
+  <syscall name="inotify_init" number="5243"/>
+  <syscall name="inotify_add_watch" number="5244"/>
+  <syscall name="inotify_rm_watch" number="5245"/>
+  <syscall name="migrate_pages" number="5246"/>
+  <syscall name="openat" number="5247"/>
+  <syscall name="mkdirat" number="5248"/>
+  <syscall name="mknodat" number="5249"/>
+  <syscall name="fchownat" number="5250"/>
+  <syscall name="futimesat" number="5251"/>
+  <syscall name="newfstatat" number="5252"/>
+  <syscall name="unlinkat" number="5253"/>
+  <syscall name="renameat" number="5254"/>
+  <syscall name="linkat" number="5255"/>
+  <syscall name="symlinkat" number="5256"/>
+  <syscall name="readlinkat" number="5257"/>
+  <syscall name="fchmodat" number="5258"/>
+  <syscall name="faccessat" number="5259"/>
+  <syscall name="pselect6" number="5260"/>
+  <syscall name="ppoll" number="5261"/>
+  <syscall name="unshare" number="5262"/>
+  <syscall name="splice" number="5263"/>
+  <syscall name="sync_file_range" number="5264"/>
+  <syscall name="tee" number="5265"/>
+  <syscall name="vmsplice" number="5266"/>
+  <syscall name="move_pages" number="5267"/>
+  <syscall name="set_robust_list" number="5268"/>
+  <syscall name="get_robust_list" number="5269"/>
+  <syscall name="kexec_load" number="5270"/>
+  <syscall name="getcpu" number="5271"/>
+  <syscall name="epoll_pwait" number="5272"/>
+  <syscall name="ioprio_set" number="5273"/>
+  <syscall name="ioprio_get" number="5274"/>
+  <syscall name="utimensat" number="5275"/>
+  <syscall name="signalfd" number="5276"/>
+  <syscall name="timerfd" number="5277"/>
+  <syscall name="eventfd" number="5278"/>
+  <syscall name="fallocate" number="5279"/>
+  <syscall name="timerfd_create" number="5280"/>
+  <syscall name="timerfd_gettime" number="5281"/>
+  <syscall name="timerfd_settime" number="5282"/>
+  <syscall name="signalfd4" number="5283"/>
+  <syscall name="eventfd2" number="5284"/>
+  <syscall name="epoll_create1" number="5285"/>
+  <syscall name="dup3" number="5286"/>
+  <syscall name="pipe2" number="5287"/>
+  <syscall name="inotify_init1" number="5288"/>
+  <syscall name="preadv" number="5289"/>
+  <syscall name="pwritev" number="5290"/>
+  <syscall name="rt_tgsigqueueinfo" number="5291"/>
+  <syscall name="perf_event_open" number="5292"/>
+  <syscall name="accept4" number="5293"/>
+  <syscall name="recvmmsg" number="5294"/>
+  <syscall name="fanotify_init" number="5295"/>
+  <syscall name="fanotify_mark" number="5296"/>
+  <syscall name="prlimit64" number="5297"/>
+</syscalls_info>
Index: gdb/syscalls/mips-o32-linux.xml
===================================================================
RCS file: gdb/syscalls/mips-o32-linux.xml
diff -N gdb/syscalls/mips-o32-linux.xml
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gdb/syscalls/mips-o32-linux.xml	24 Jan 2011 19:39:52 -0000
@@ -0,0 +1,347 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2011 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!DOCTYPE feature SYSTEM "gdb-syscalls.dtd">
+
+<!-- This file was generated using the following file:
+     
+     /usr/src/linux/arch/mips/include/asm/unistd.h
+
+     The file mentioned above belongs to the Linux Kernel.  -->
+
+<syscalls_info>
+  <syscall name="syscall" number="4000"/>
+  <syscall name="exit" number="4001"/>
+  <syscall name="fork" number="4002"/>
+  <syscall name="read" number="4003"/>
+  <syscall name="write" number="4004"/>
+  <syscall name="open" number="4005"/>
+  <syscall name="close" number="4006"/>
+  <syscall name="waitpid" number="4007"/>
+  <syscall name="creat" number="4008"/>
+  <syscall name="link" number="4009"/>
+  <syscall name="unlink" number="4010"/>
+  <syscall name="execve" number="4011"/>
+  <syscall name="chdir" number="4012"/>
+  <syscall name="time" number="4013"/>
+  <syscall name="mknod" number="4014"/>
+  <syscall name="chmod" number="4015"/>
+  <syscall name="lchown" number="4016"/>
+  <syscall name="break" number="4017"/>
+  <syscall name="lseek" number="4019"/>
+  <syscall name="getpid" number="4020"/>
+  <syscall name="mount" number="4021"/>
+  <syscall name="umount" number="4022"/>
+  <syscall name="setuid" number="4023"/>
+  <syscall name="getuid" number="4024"/>
+  <syscall name="stime" number="4025"/>
+  <syscall name="ptrace" number="4026"/>
+  <syscall name="alarm" number="4027"/>
+  <syscall name="pause" number="4029"/>
+  <syscall name="utime" number="4030"/>
+  <syscall name="stty" number="4031"/>
+  <syscall name="gtty" number="4032"/>
+  <syscall name="access" number="4033"/>
+  <syscall name="nice" number="4034"/>
+  <syscall name="ftime" number="4035"/>
+  <syscall name="sync" number="4036"/>
+  <syscall name="kill" number="4037"/>
+  <syscall name="rename" number="4038"/>
+  <syscall name="mkdir" number="4039"/>
+  <syscall name="rmdir" number="4040"/>
+  <syscall name="dup" number="4041"/>
+  <syscall name="pipe" number="4042"/>
+  <syscall name="times" number="4043"/>
+  <syscall name="prof" number="4044"/>
+  <syscall name="brk" number="4045"/>
+  <syscall name="setgid" number="4046"/>
+  <syscall name="getgid" number="4047"/>
+  <syscall name="signal" number="4048"/>
+  <syscall name="geteuid" number="4049"/>
+  <syscall name="getegid" number="4050"/>
+  <syscall name="acct" number="4051"/>
+  <syscall name="umount2" number="4052"/>
+  <syscall name="lock" number="4053"/>
+  <syscall name="ioctl" number="4054"/>
+  <syscall name="fcntl" number="4055"/>
+  <syscall name="mpx" number="4056"/>
+  <syscall name="setpgid" number="4057"/>
+  <syscall name="ulimit" number="4058"/>
+  <syscall name="umask" number="4060"/>
+  <syscall name="chroot" number="4061"/>
+  <syscall name="ustat" number="4062"/>
+  <syscall name="dup2" number="4063"/>
+  <syscall name="getppid" number="4064"/>
+  <syscall name="getpgrp" number="4065"/>
+  <syscall name="setsid" number="4066"/>
+  <syscall name="sigaction" number="4067"/>
+  <syscall name="sgetmask" number="4068"/>
+  <syscall name="ssetmask" number="4069"/>
+  <syscall name="setreuid" number="4070"/>
+  <syscall name="setregid" number="4071"/>
+  <syscall name="sigsuspend" number="4072"/>
+  <syscall name="sigpending" number="4073"/>
+  <syscall name="sethostname" number="4074"/>
+  <syscall name="setrlimit" number="4075"/>
+  <syscall name="getrlimit" number="4076"/>
+  <syscall name="getrusage" number="4077"/>
+  <syscall name="gettimeofday" number="4078"/>
+  <syscall name="settimeofday" number="4079"/>
+  <syscall name="getgroups" number="4080"/>
+  <syscall name="setgroups" number="4081"/>
+  <syscall name="symlink" number="4083"/>
+  <syscall name="readlink" number="4085"/>
+  <syscall name="uselib" number="4086"/>
+  <syscall name="swapon" number="4087"/>
+  <syscall name="reboot" number="4088"/>
+  <syscall name="readdir" number="4089"/>
+  <syscall name="mmap" number="4090"/>
+  <syscall name="munmap" number="4091"/>
+  <syscall name="truncate" number="4092"/>
+  <syscall name="ftruncate" number="4093"/>
+  <syscall name="fchmod" number="4094"/>
+  <syscall name="fchown" number="4095"/>
+  <syscall name="getpriority" number="4096"/>
+  <syscall name="setpriority" number="4097"/>
+  <syscall name="profil" number="4098"/>
+  <syscall name="statfs" number="4099"/>
+  <syscall name="fstatfs" number="4100"/>
+  <syscall name="ioperm" number="4101"/>
+  <syscall name="socketcall" number="4102"/>
+  <syscall name="syslog" number="4103"/>
+  <syscall name="setitimer" number="4104"/>
+  <syscall name="getitimer" number="4105"/>
+  <syscall name="stat" number="4106"/>
+  <syscall name="lstat" number="4107"/>
+  <syscall name="fstat" number="4108"/>
+  <syscall name="iopl" number="4110"/>
+  <syscall name="vhangup" number="4111"/>
+  <syscall name="idle" number="4112"/>
+  <syscall name="vm86" number="4113"/>
+  <syscall name="wait4" number="4114"/>
+  <syscall name="swapoff" number="4115"/>
+  <syscall name="sysinfo" number="4116"/>
+  <syscall name="ipc" number="4117"/>
+  <syscall name="fsync" number="4118"/>
+  <syscall name="sigreturn" number="4119"/>
+  <syscall name="clone" number="4120"/>
+  <syscall name="setdomainname" number="4121"/>
+  <syscall name="uname" number="4122"/>
+  <syscall name="modify_ldt" number="4123"/>
+  <syscall name="adjtimex" number="4124"/>
+  <syscall name="mprotect" number="4125"/>
+  <syscall name="sigprocmask" number="4126"/>
+  <syscall name="create_module" number="4127"/>
+  <syscall name="init_module" number="4128"/>
+  <syscall name="delete_module" number="4129"/>
+  <syscall name="get_kernel_syms" number="4130"/>
+  <syscall name="quotactl" number="4131"/>
+  <syscall name="getpgid" number="4132"/>
+  <syscall name="fchdir" number="4133"/>
+  <syscall name="bdflush" number="4134"/>
+  <syscall name="sysfs" number="4135"/>
+  <syscall name="personality" number="4136"/>
+  <syscall name="afs_syscall" number="4137"/>
+  <syscall name="setfsuid" number="4138"/>
+  <syscall name="setfsgid" number="4139"/>
+  <syscall name="_llseek" number="4140"/>
+  <syscall name="getdents" number="4141"/>
+  <syscall name="_newselect" number="4142"/>
+  <syscall name="flock" number="4143"/>
+  <syscall name="msync" number="4144"/>
+  <syscall name="readv" number="4145"/>
+  <syscall name="writev" number="4146"/>
+  <syscall name="cacheflush" number="4147"/>
+  <syscall name="cachectl" number="4148"/>
+  <syscall name="sysmips" number="4149"/>
+  <syscall name="getsid" number="4151"/>
+  <syscall name="fdatasync" number="4152"/>
+  <syscall name="_sysctl" number="4153"/>
+  <syscall name="mlock" number="4154"/>
+  <syscall name="munlock" number="4155"/>
+  <syscall name="mlockall" number="4156"/>
+  <syscall name="munlockall" number="4157"/>
+  <syscall name="sched_setparam" number="4158"/>
+  <syscall name="sched_getparam" number="4159"/>
+  <syscall name="sched_setscheduler" number="4160"/>
+  <syscall name="sched_getscheduler" number="4161"/>
+  <syscall name="sched_yield" number="4162"/>
+  <syscall name="sched_get_priority_max" number="4163"/>
+  <syscall name="sched_get_priority_min" number="4164"/>
+  <syscall name="sched_rr_get_interval" number="4165"/>
+  <syscall name="nanosleep" number="4166"/>
+  <syscall name="mremap" number="4167"/>
+  <syscall name="accept" number="4168"/>
+  <syscall name="bind" number="4169"/>
+  <syscall name="connect" number="4170"/>
+  <syscall name="getpeername" number="4171"/>
+  <syscall name="getsockname" number="4172"/>
+  <syscall name="getsockopt" number="4173"/>
+  <syscall name="listen" number="4174"/>
+  <syscall name="recv" number="4175"/>
+  <syscall name="recvfrom" number="4176"/>
+  <syscall name="recvmsg" number="4177"/>
+  <syscall name="send" number="4178"/>
+  <syscall name="sendmsg" number="4179"/>
+  <syscall name="sendto" number="4180"/>
+  <syscall name="setsockopt" number="4181"/>
+  <syscall name="shutdown" number="4182"/>
+  <syscall name="socket" number="4183"/>
+  <syscall name="socketpair" number="4184"/>
+  <syscall name="setresuid" number="4185"/>
+  <syscall name="getresuid" number="4186"/>
+  <syscall name="query_module" number="4187"/>
+  <syscall name="poll" number="4188"/>
+  <syscall name="nfsservctl" number="4189"/>
+  <syscall name="setresgid" number="4190"/>
+  <syscall name="getresgid" number="4191"/>
+  <syscall name="prctl" number="4192"/>
+  <syscall name="rt_sigreturn" number="4193"/>
+  <syscall name="rt_sigaction" number="4194"/>
+  <syscall name="rt_sigprocmask" number="4195"/>
+  <syscall name="rt_sigpending" number="4196"/>
+  <syscall name="rt_sigtimedwait" number="4197"/>
+  <syscall name="rt_sigqueueinfo" number="4198"/>
+  <syscall name="rt_sigsuspend" number="4199"/>
+  <syscall name="pread64" number="4200"/>
+  <syscall name="pwrite64" number="4201"/>
+  <syscall name="chown" number="4202"/>
+  <syscall name="getcwd" number="4203"/>
+  <syscall name="capget" number="4204"/>
+  <syscall name="capset" number="4205"/>
+  <syscall name="sigaltstack" number="4206"/>
+  <syscall name="sendfile" number="4207"/>
+  <syscall name="getpmsg" number="4208"/>
+  <syscall name="putpmsg" number="4209"/>
+  <syscall name="mmap2" number="4210"/>
+  <syscall name="truncate64" number="4211"/>
+  <syscall name="ftruncate64" number="4212"/>
+  <syscall name="stat64" number="4213"/>
+  <syscall name="lstat64" number="4214"/>
+  <syscall name="fstat64" number="4215"/>
+  <syscall name="pivot_root" number="4216"/>
+  <syscall name="mincore" number="4217"/>
+  <syscall name="madvise" number="4218"/>
+  <syscall name="getdents64" number="4219"/>
+  <syscall name="fcntl64" number="4220"/>
+  <syscall name="gettid" number="4222"/>
+  <syscall name="readahead" number="4223"/>
+  <syscall name="setxattr" number="4224"/>
+  <syscall name="lsetxattr" number="4225"/>
+  <syscall name="fsetxattr" number="4226"/>
+  <syscall name="getxattr" number="4227"/>
+  <syscall name="lgetxattr" number="4228"/>
+  <syscall name="fgetxattr" number="4229"/>
+  <syscall name="listxattr" number="4230"/>
+  <syscall name="llistxattr" number="4231"/>
+  <syscall name="flistxattr" number="4232"/>
+  <syscall name="removexattr" number="4233"/>
+  <syscall name="lremovexattr" number="4234"/>
+  <syscall name="fremovexattr" number="4235"/>
+  <syscall name="tkill" number="4236"/>
+  <syscall name="sendfile64" number="4237"/>
+  <syscall name="futex" number="4238"/>
+  <syscall name="sched_setaffinity" number="4239"/>
+  <syscall name="sched_getaffinity" number="4240"/>
+  <syscall name="io_setup" number="4241"/>
+  <syscall name="io_destroy" number="4242"/>
+  <syscall name="io_getevents" number="4243"/>
+  <syscall name="io_submit" number="4244"/>
+  <syscall name="io_cancel" number="4245"/>
+  <syscall name="exit_group" number="4246"/>
+  <syscall name="lookup_dcookie" number="4247"/>
+  <syscall name="epoll_create" number="4248"/>
+  <syscall name="epoll_ctl" number="4249"/>
+  <syscall name="epoll_wait" number="4250"/>
+  <syscall name="remap_file_pages" number="4251"/>
+  <syscall name="set_tid_address" number="4252"/>
+  <syscall name="restart_syscall" number="4253"/>
+  <syscall name="fadvise64" number="4254"/>
+  <syscall name="statfs64" number="4255"/>
+  <syscall name="fstatfs64" number="4256"/>
+  <syscall name="timer_create" number="4257"/>
+  <syscall name="timer_settime" number="4258"/>
+  <syscall name="timer_gettime" number="4259"/>
+  <syscall name="timer_getoverrun" number="4260"/>
+  <syscall name="timer_delete" number="4261"/>
+  <syscall name="clock_settime" number="4262"/>
+  <syscall name="clock_gettime" number="4263"/>
+  <syscall name="clock_getres" number="4264"/>
+  <syscall name="clock_nanosleep" number="4265"/>
+  <syscall name="tgkill" number="4266"/>
+  <syscall name="utimes" number="4267"/>
+  <syscall name="mbind" number="4268"/>
+  <syscall name="get_mempolicy" number="4269"/>
+  <syscall name="set_mempolicy" number="4270"/>
+  <syscall name="mq_open" number="4271"/>
+  <syscall name="mq_unlink" number="4272"/>
+  <syscall name="mq_timedsend" number="4273"/>
+  <syscall name="mq_timedreceive" number="4274"/>
+  <syscall name="mq_notify" number="4275"/>
+  <syscall name="mq_getsetattr" number="4276"/>
+  <syscall name="vserver" number="4277"/>
+  <syscall name="waitid" number="4278"/>
+  <syscall name="add_key" number="4280"/>
+  <syscall name="request_key" number="4281"/>
+  <syscall name="keyctl" number="4282"/>
+  <syscall name="set_thread_area" number="4283"/>
+  <syscall name="inotify_init" number="4284"/>
+  <syscall name="inotify_add_watch" number="4285"/>
+  <syscall name="inotify_rm_watch" number="4286"/>
+  <syscall name="migrate_pages" number="4287"/>
+  <syscall name="openat" number="4288"/>
+  <syscall name="mkdirat" number="4289"/>
+  <syscall name="mknodat" number="4290"/>
+  <syscall name="fchownat" number="4291"/>
+  <syscall name="futimesat" number="4292"/>
+  <syscall name="fstatat64" number="4293"/>
+  <syscall name="unlinkat" number="4294"/>
+  <syscall name="renameat" number="4295"/>
+  <syscall name="linkat" number="4296"/>
+  <syscall name="symlinkat" number="4297"/>
+  <syscall name="readlinkat" number="4298"/>
+  <syscall name="fchmodat" number="4299"/>
+  <syscall name="faccessat" number="4300"/>
+  <syscall name="pselect6" number="4301"/>
+  <syscall name="ppoll" number="4302"/>
+  <syscall name="unshare" number="4303"/>
+  <syscall name="splice" number="4304"/>
+  <syscall name="sync_file_range" number="4305"/>
+  <syscall name="tee" number="4306"/>
+  <syscall name="vmsplice" number="4307"/>
+  <syscall name="move_pages" number="4308"/>
+  <syscall name="set_robust_list" number="4309"/>
+  <syscall name="get_robust_list" number="4310"/>
+  <syscall name="kexec_load" number="4311"/>
+  <syscall name="getcpu" number="4312"/>
+  <syscall name="epoll_pwait" number="4313"/>
+  <syscall name="ioprio_set" number="4314"/>
+  <syscall name="ioprio_get" number="4315"/>
+  <syscall name="utimensat" number="4316"/>
+  <syscall name="signalfd" number="4317"/>
+  <syscall name="timerfd" number="4318"/>
+  <syscall name="eventfd" number="4319"/>
+  <syscall name="fallocate" number="4320"/>
+  <syscall name="timerfd_create" number="4321"/>
+  <syscall name="timerfd_gettime" number="4322"/>
+  <syscall name="timerfd_settime" number="4323"/>
+  <syscall name="signalfd4" number="4324"/>
+  <syscall name="eventfd2" number="4325"/>
+  <syscall name="epoll_create1" number="4326"/>
+  <syscall name="dup3" number="4327"/>
+  <syscall name="pipe2" number="4328"/>
+  <syscall name="inotify_init1" number="4329"/>
+  <syscall name="preadv" number="4330"/>
+  <syscall name="pwritev" number="4331"/>
+  <syscall name="rt_tgsigqueueinfo" number="4332"/>
+  <syscall name="perf_event_open" number="4333"/>
+  <syscall name="accept4" number="4334"/>
+  <syscall name="recvmmsg" number="4335"/>
+  <syscall name="fanotify_init" number="4336"/>
+  <syscall name="fanotify_mark" number="4337"/>
+  <syscall name="prlimit64" number="4338"/>
+</syscalls_info>
Index: gdb/testsuite/gdb.base/catch-syscall.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/catch-syscall.exp,v
retrieving revision 1.11
diff -u -p -r1.11 catch-syscall.exp
--- gdb/testsuite/gdb.base/catch-syscall.exp	1 Jan 2011 15:33:41 -0000	1.11
+++ gdb/testsuite/gdb.base/catch-syscall.exp	24 Jan 2011 19:39:52 -0000
@@ -54,7 +54,8 @@ if {![istarget "hppa*-hp-hpux*"] && ![is
 #if { ![istarget "i\[34567\]86-*-linux*"]
 if { ![istarget "x86_64-*-linux*"] && ![istarget "i\[34567\]86-*-linux*"]
      && ![istarget "powerpc-*-linux*"] && ![istarget "powerpc64-*-linux*"]
-     && ![istarget "sparc-*-linux*"] && ![istarget "sparc64-*-linux*"] } {
+     && ![istarget "sparc-*-linux*"] && ![istarget "sparc64-*-linux*"]
+     && ![istarget "mips*-linux*"] } {
      continue
 }
 

Ping: [Patch v2] Add mips*-linux* catch syscall support.

[David Daney]

If it is not too much trouble, could a Maintainer review this patch?

Thanks in advance,
David Daney


On 01/24/2011 11:47 AM, David Daney wrote:
> Change in v2: Simplify memory allocation in
> mips_linux_get_syscall_number() as suggested by Nathen Froyd.
>
>  From the original posting:
>
> This patch adds catch syscall support for all three MIPS Linux ABIs
> (o32, n32 and n64).
>
> For the most part this works as expected, except for one small detail.
> The MIPS Linux syscall ABI passes the syscall number in register v0 when
> making a syscall, but it also uses the same register to return
> information back from the syscall. This clobbering of the syscall number
> is currently not well handled by GDB. We PASS all the tests for '(call
> to syscall ???)', but FAIL those for (returned from syscall ???),
> because GDB expects to be able to obtain the syscall number on syscall
> exit. For MIPS Linux it will never be available.
>
> I think the real fix for this is to improve the core 'catch syscall'
> support so that it can either remember the syscall number, or not try to
> print out bogus information, but that would be something for a different
> patch.
>
> Tested on mips-linux, and mips64-linux.
>
> OK to commit?
>
> 2011-01-24 David Daney <ddaney@caviumnetworks.com>
>
> * mips-linux-tdep.c: Include xml-syscall.h.
> (mips_linux_get_syscall_number): New function.
> (mips_linux_init_abi): Add calls to
> mips_linux_get_syscall_number() and set_xml_syscall_file_name().
> * data-directory/Makefile.in (SYSCALLS_FILES): Add
> mips-o32-linux.xml, mips-n32-linux.xml and mips-n64-linux.xml
> * syscalls/mips-n32-linux.xml: New file.
> * syscalls/mips-n64-linux.xml: New file.
> * syscalls/mips-o32-linux.xml: New file.
>
> 2011-01-24 David Daney <ddaney@caviumnetworks.com>
>
> * gdb.base/catch-syscall.exp: Enable for mips*-linux*.

Re: Ping: [Patch v2] Add mips*-linux* catch syscall support.

[Michael Snyder]

David Daney wrote:
> If it is not too much trouble, could a Maintainer review this patch?
> 
> Thanks in advance,
> David Daney

There's an off-by-one indentation here:


+static LONGEST
+mips_linux_get_syscall_number (struct gdbarch *gdbarch,
+                              ptid_t ptid)

Other than that, the part in mips-linux-tdep.c looks reasonable.
I don't understand the xml parts well enough to comment.

Re: Ping: [Patch v2] Add mips*-linux* catch syscall support.

[David Daney]

On 01/31/2011 11:45 AM, Michael Snyder wrote:
> David Daney wrote:
>> If it is not too much trouble, could a Maintainer review this patch?
>>
>> Thanks in advance,
>> David Daney
>
> There's an off-by-one indentation here:
>
>
> +static LONGEST
> +mips_linux_get_syscall_number (struct gdbarch *gdbarch,
> + ptid_t ptid)
>

Good catch.  If approved, I would commit the corrected version.


> Other than that, the part in mips-linux-tdep.c looks reasonable.
> I don't understand the xml parts well enough to comment.
>

Thanks for looking at it, now to get someone to give the official 'OK'

David Daney

Re: [Patch v2] Add mips*-linux* catch syscall support.

[Tom Tromey]

>>>>> "David" == David Daney <ddaney@caviumnetworks.com> writes:

Oh, yeah...

David> I think the real fix for this is to improve the core 'catch syscall'
David> support so that it can either remember the syscall number, or not try
David> to print out bogus information, but that would be something for a
David> different patch.

Could you file this in bugzilla?

Tom

Re: [Patch v2] Add mips*-linux* catch syscall support.

[Tom Tromey]

>>>>> "David" == David Daney <ddaney@caviumnetworks.com> writes:

David>  }
David> +/* Return the current system call's number present in the
David> +   v0 register.  When the function fails, it returns -1.  */
David> +static LONGEST

There should be a blank line on each side of this comment.

This is ok with this fixed.

I think this is probably a NEWS-worthy change.

Tom