Support catch syscall on aarch64 linux
Hi,
This patch is to support catch syscall on aarch64 linux. We
implement gdbarch method get_syscall_number for aarch64-linux,
and add aarch64-linux.xml file, which looks straightforward, however
the changes to test case doesn't.
First of all, we enable catch-syscall.exp on aarch64-linux target,
but skip the multi_arch testing on current stage. I plan to touch
multi arch debugging on aarch64-linux later.
Then, when I run catch-syscall.exp on aarch64-linux, gcc errors that
SYS_pipe isn't defined. We find that aarch64 kernel only has pipe2
syscall and libc already convert pipe to pipe2. As a result, I change
catch-syscall.c to use SYS_pipe if it is defined, otherwise use
SYS_pipe2 instead. The vector all_syscalls in catch-syscall.exp can't
be pre-determined, so I add a new proc setup_all_syscalls to fill it,
according to the availability of SYS_pipe.
Regression tested on {x86_64, aarch64}-linux x {native, gdbserver}.
gdb:
2015-03-18 Yao Qi <yao.qi@linaro.org>
PR tdep/18107
* aarch64-linux-tdep.c: Include xml-syscall.h
(aarch64_linux_get_syscall_number): New function.
(aarch64_linux_init_abi): Call
set_gdbarch_get_syscall_number.
* syscalls/aarch64-linux.xml: New file.
gdb/testsuite:
2015-03-18 Yao Qi <yao.qi@linaro.org>
PR tdep/18107
* gdb.base/catch-syscall.c [!SYS_pipe] (pipe2_syscall): New
variable.
* gdb.base/catch-syscall.exp: Don't skip it on
aarch64*-*-linux* target. Remove elements in all_syscalls.
(test_catch_syscall_multi_arch): Skip it on aarch64*-linux*
target.
(setup_all_syscalls): New proc.
This commit is contained in:
Yao Qi
parent
b3862264bc
commit
f68f11b76d
@ -1,3 +1,12 @@
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2015-03-11 Yao Qi <yao.qi@linaro.org>
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PR tdep/18107
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* aarch64-linux-tdep.c: Include xml-syscall.h
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(aarch64_linux_get_syscall_number): New function.
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(aarch64_linux_init_abi): Call
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set_gdbarch_get_syscall_number.
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* syscalls/aarch64-linux.xml: New file.
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2015-03-17 Yurij Grechishhev <yurij.grechishhev@gmail.com>
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* ser-base.h (ser_base_setstopbits): Change second argument name
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@ -39,6 +39,7 @@
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#include "stap-probe.h"
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#include "parser-defs.h"
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#include "user-regs.h"
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#include "xml-syscall.h"
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#include <ctype.h>
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/* Signal frame handling.
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@ -341,6 +342,28 @@ aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
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return 1;
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}
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/* Implement the "get_syscall_number" gdbarch method. */
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static LONGEST
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aarch64_linux_get_syscall_number (struct gdbarch *gdbarch,
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ptid_t ptid)
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{
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struct regcache *regs = get_thread_regcache (ptid);
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enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
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/* The content of register x8. */
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gdb_byte buf[X_REGISTER_SIZE];
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/* The result. */
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LONGEST ret;
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/* Getting the system call number from the register x8. */
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regcache_cooked_read (regs, AARCH64_DWARF_X0 + 8, buf);
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ret = extract_signed_integer (buf, X_REGISTER_SIZE, byte_order);
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return ret;
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}
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static void
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aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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@ -385,6 +408,10 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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set_gdbarch_stap_is_single_operand (gdbarch, aarch64_stap_is_single_operand);
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set_gdbarch_stap_parse_special_token (gdbarch,
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aarch64_stap_parse_special_token);
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/* `catch syscall' */
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set_xml_syscall_file_name (gdbarch, "syscalls/aarch64-linux.xml");
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set_gdbarch_get_syscall_number (gdbarch, aarch64_linux_get_syscall_number);
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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271
gdb/syscalls/aarch64-linux.xml
Normal file
271
gdb/syscalls/aarch64-linux.xml
Normal file
@ -0,0 +1,271 @@
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<?xml version="1.0"?>
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<!-- Copyright (C) 2015 Free Software Foundation, Inc.
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved. This file is offered as-is,
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without any warranty. -->
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<!DOCTYPE feature SYSTEM "gdb-syscalls.dtd">
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<syscalls_info>
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<syscall name="io_setup" number="0"/>
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<syscall name="io_destroy" number="1"/>
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<syscall name="io_submit" number="2"/>
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<syscall name="io_cancel" number="3"/>
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<syscall name="io_getevents" number="4"/>
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<syscall name="setxattr" number="5"/>
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<syscall name="lsetxattr" number="6"/>
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<syscall name="fsetxattr" number="7"/>
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<syscall name="getxattr" number="8"/>
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<syscall name="lgetxattr" number="9"/>
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<syscall name="fgetxattr" number="10"/>
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<syscall name="listxattr" number="11"/>
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<syscall name="llistxattr" number="12"/>
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<syscall name="flistxattr" number="13"/>
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<syscall name="removexattr" number="14"/>
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<syscall name="lremovexattr" number="15"/>
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<syscall name="fremovexattr" number="16"/>
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<syscall name="getcwd" number="17"/>
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<syscall name="lookup_dcookie" number="18"/>
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<syscall name="eventfd2" number="19"/>
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<syscall name="epoll_create1" number="20"/>
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<syscall name="epoll_ctl" number="21"/>
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<syscall name="epoll_pwait" number="22"/>
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<syscall name="dup" number="23"/>
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<syscall name="dup3" number="24"/>
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<syscall name="fcntl" number="25"/>
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<syscall name="inotify_init1" number="26"/>
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<syscall name="inotify_add_watch" number="27"/>
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<syscall name="inotify_rm_watch" number="28"/>
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<syscall name="ioctl" number="29"/>
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<syscall name="ioprio_set" number="30"/>
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<syscall name="ioprio_get" number="31"/>
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<syscall name="flock" number="32"/>
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<syscall name="mknodat" number="33"/>
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<syscall name="mkdirat" number="34"/>
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<syscall name="unlinkat" number="35"/>
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<syscall name="symlinkat" number="36"/>
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<syscall name="linkat" number="37"/>
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<syscall name="renameat" number="38"/>
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<syscall name="umount2" number="39"/>
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<syscall name="mount" number="40"/>
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<syscall name="pivot_root" number="41"/>
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<syscall name="nfsservctl" number="42"/>
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<syscall name="statfs" number="43"/>
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<syscall name="fstatfs" number="44"/>
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<syscall name="truncate" number="45"/>
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<syscall name="ftruncate" number="46"/>
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<syscall name="fallocate" number="47"/>
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<syscall name="faccessat" number="48"/>
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<syscall name="chdir" number="49"/>
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<syscall name="fchdir" number="50"/>
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<syscall name="chroot" number="51"/>
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<syscall name="fchmod" number="52"/>
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<syscall name="fchmodat" number="53"/>
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<syscall name="fchownat" number="54"/>
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<syscall name="fchown" number="55"/>
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<syscall name="openat" number="56"/>
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<syscall name="close" number="57"/>
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<syscall name="vhangup" number="58"/>
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<syscall name="pipe2" number="59"/>
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<syscall name="quotactl" number="60"/>
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<syscall name="getdents64" number="61"/>
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<syscall name="lseek" number="62"/>
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<syscall name="read" number="63"/>
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<syscall name="write" number="64"/>
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<syscall name="readv" number="65"/>
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<syscall name="writev" number="66"/>
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<syscall name="pread64" number="67"/>
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<syscall name="pwrite64" number="68"/>
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<syscall name="preadv" number="69"/>
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<syscall name="pwritev" number="70"/>
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<syscall name="sendfile" number="71"/>
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<syscall name="pselect6" number="72"/>
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<syscall name="ppoll" number="73"/>
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<syscall name="signalfd4" number="74"/>
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<syscall name="vmsplice" number="75"/>
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<syscall name="splice" number="76"/>
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<syscall name="tee" number="77"/>
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<syscall name="readlinkat" number="78"/>
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<syscall name="newfstatat" number="79"/>
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<syscall name="fstat" number="80"/>
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<syscall name="sync" number="81"/>
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<syscall name="fsync" number="82"/>
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<syscall name="fdatasync" number="83"/>
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<syscall name="sync_file_range" number="84"/>
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<syscall name="timerfd_create" number="85"/>
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<syscall name="timerfd_settime" number="86"/>
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<syscall name="timerfd_gettime" number="87"/>
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<syscall name="utimensat" number="88"/>
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<syscall name="acct" number="89"/>
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<syscall name="capget" number="90"/>
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<syscall name="capset" number="91"/>
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<syscall name="personality" number="92"/>
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<syscall name="exit" number="93"/>
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<syscall name="exit_group" number="94"/>
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<syscall name="waitid" number="95"/>
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<syscall name="set_tid_address" number="96"/>
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<syscall name="unshare" number="97"/>
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<syscall name="futex" number="98"/>
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<syscall name="set_robust_list" number="99"/>
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<syscall name="get_robust_list" number="100"/>
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<syscall name="nanosleep" number="101"/>
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<syscall name="getitimer" number="102"/>
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<syscall name="setitimer" number="103"/>
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<syscall name="kexec_load" number="104"/>
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<syscall name="init_module" number="105"/>
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<syscall name="delete_module" number="106"/>
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<syscall name="timer_create" number="107"/>
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<syscall name="timer_gettime" number="108"/>
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<syscall name="timer_getoverrun" number="109"/>
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<syscall name="timer_settime" number="110"/>
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<syscall name="timer_delete" number="111"/>
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<syscall name="clock_settime" number="112"/>
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<syscall name="clock_gettime" number="113"/>
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<syscall name="clock_getres" number="114"/>
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<syscall name="clock_nanosleep" number="115"/>
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<syscall name="syslog" number="116"/>
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<syscall name="ptrace" number="117"/>
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<syscall name="sched_setparam" number="118"/>
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<syscall name="sched_setscheduler" number="119"/>
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<syscall name="sched_getscheduler" number="120"/>
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<syscall name="sched_getparam" number="121"/>
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<syscall name="sched_setaffinity" number="122"/>
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<syscall name="sched_getaffinity" number="123"/>
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<syscall name="sched_yield" number="124"/>
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<syscall name="sched_get_priority_max" number="125"/>
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<syscall name="sched_get_priority_min" number="126"/>
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<syscall name="sched_rr_get_interval" number="127"/>
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<syscall name="restart_syscall" number="128"/>
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<syscall name="kill" number="129"/>
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<syscall name="tkill" number="130"/>
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<syscall name="tgkill" number="131"/>
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<syscall name="sigaltstack" number="132"/>
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<syscall name="rt_sigsuspend" number="133"/>
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<syscall name="rt_sigaction" number="134"/>
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<syscall name="rt_sigprocmask" number="135"/>
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<syscall name="rt_sigpending" number="136"/>
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<syscall name="rt_sigtimedwait" number="137"/>
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<syscall name="rt_sigqueueinfo" number="138"/>
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<syscall name="rt_sigreturn" number="139"/>
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<syscall name="setpriority" number="140"/>
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<syscall name="getpriority" number="141"/>
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<syscall name="reboot" number="142"/>
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<syscall name="setregid" number="143"/>
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<syscall name="setgid" number="144"/>
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<syscall name="setreuid" number="145"/>
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<syscall name="setuid" number="146"/>
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<syscall name="setresuid" number="147"/>
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<syscall name="getresuid" number="148"/>
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<syscall name="setresgid" number="149"/>
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<syscall name="getresgid" number="150"/>
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<syscall name="setfsuid" number="151"/>
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<syscall name="setfsgid" number="152"/>
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<syscall name="times" number="153"/>
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<syscall name="setpgid" number="154"/>
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<syscall name="getpgid" number="155"/>
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<syscall name="getsid" number="156"/>
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<syscall name="setsid" number="157"/>
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<syscall name="getgroups" number="158"/>
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<syscall name="setgroups" number="159"/>
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<syscall name="uname" number="160"/>
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<syscall name="sethostname" number="161"/>
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<syscall name="setdomainname" number="162"/>
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<syscall name="getrlimit" number="163"/>
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<syscall name="setrlimit" number="164"/>
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<syscall name="getrusage" number="165"/>
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<syscall name="umask" number="166"/>
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<syscall name="prctl" number="167"/>
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<syscall name="getcpu" number="168"/>
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<syscall name="gettimeofday" number="169"/>
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<syscall name="settimeofday" number="170"/>
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<syscall name="adjtimex" number="171"/>
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<syscall name="getpid" number="172"/>
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<syscall name="getppid" number="173"/>
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<syscall name="getuid" number="174"/>
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<syscall name="geteuid" number="175"/>
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<syscall name="getgid" number="176"/>
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<syscall name="getegid" number="177"/>
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<syscall name="gettid" number="178"/>
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<syscall name="sysinfo" number="179"/>
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<syscall name="mq_open" number="180"/>
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<syscall name="mq_unlink" number="181"/>
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<syscall name="mq_timedsend" number="182"/>
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<syscall name="mq_timedreceive" number="183"/>
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<syscall name="mq_notify" number="184"/>
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<syscall name="mq_getsetattr" number="185"/>
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<syscall name="msgget" number="186"/>
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<syscall name="msgctl" number="187"/>
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<syscall name="msgrcv" number="188"/>
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<syscall name="msgsnd" number="189"/>
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<syscall name="semget" number="190"/>
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<syscall name="semctl" number="191"/>
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<syscall name="semtimedop" number="192"/>
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<syscall name="semop" number="193"/>
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<syscall name="shmget" number="194"/>
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<syscall name="shmctl" number="195"/>
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<syscall name="shmat" number="196"/>
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<syscall name="shmdt" number="197"/>
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<syscall name="socket" number="198"/>
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<syscall name="socketpair" number="199"/>
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<syscall name="bind" number="200"/>
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<syscall name="listen" number="201"/>
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<syscall name="accept" number="202"/>
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<syscall name="connect" number="203"/>
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<syscall name="getsockname" number="204"/>
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<syscall name="getpeername" number="205"/>
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<syscall name="sendto" number="206"/>
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<syscall name="recvfrom" number="207"/>
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<syscall name="setsockopt" number="208"/>
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<syscall name="getsockopt" number="209"/>
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<syscall name="shutdown" number="210"/>
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<syscall name="sendmsg" number="211"/>
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<syscall name="recvmsg" number="212"/>
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<syscall name="readahead" number="213"/>
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<syscall name="brk" number="214"/>
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<syscall name="munmap" number="215"/>
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<syscall name="mremap" number="216"/>
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<syscall name="add_key" number="217"/>
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<syscall name="request_key" number="218"/>
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<syscall name="keyctl" number="219"/>
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<syscall name="clone" number="220"/>
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<syscall name="execve" number="221"/>
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<syscall name="mmap" number="222"/>
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<syscall name="fadvise64" number="223"/>
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<syscall name="swapon" number="224"/>
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<syscall name="swapoff" number="225"/>
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<syscall name="mprotect" number="226"/>
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<syscall name="msync" number="227"/>
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<syscall name="mlock" number="228"/>
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<syscall name="munlock" number="229"/>
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<syscall name="mlockall" number="230"/>
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<syscall name="munlockall" number="231"/>
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<syscall name="mincore" number="232"/>
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<syscall name="madvise" number="233"/>
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<syscall name="remap_file_pages" number="234"/>
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<syscall name="mbind" number="235"/>
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<syscall name="get_mempolicy" number="236"/>
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<syscall name="set_mempolicy" number="237"/>
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<syscall name="migrate_pages" number="238"/>
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<syscall name="move_pages" number="239"/>
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<syscall name="rt_tgsigqueueinfo" number="240"/>
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<syscall name="perf_event_open" number="241"/>
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<syscall name="accept4" number="242"/>
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<syscall name="recvmmsg" number="243"/>
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<syscall name="arch_specific_syscall" number="244"/>
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<syscall name="wait4" number="260"/>
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<syscall name="prlimit64" number="261"/>
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<syscall name="fanotify_init" number="262"/>
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<syscall name="fanotify_mark" number="263"/>
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<syscall name="name_to_handle_at" number="264"/>
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<syscall name="open_by_handle_at" number="265"/>
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<syscall name="clock_adjtime" number="266"/>
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<syscall name="syncfs" number="267"/>
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<syscall name="setns" number="268"/>
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<syscall name="sendmmsg" number="269"/>
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<syscall name="process_vm_readv" number="270"/>
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<syscall name="process_vm_writev" number="271"/>
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<syscall name="kcmp" number="272"/>
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<syscall name="syscalls" number="273"/>
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</syscalls_info>
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@ -1,3 +1,14 @@
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2015-03-18 Yao Qi <yao.qi@linaro.org>
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PR tdep/18107
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* gdb.base/catch-syscall.c [!SYS_pipe] (pipe2_syscall): New
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variable.
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* gdb.base/catch-syscall.exp: Don't skip it on
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aarch64*-*-linux* target. Remove elements in all_syscalls.
|
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(test_catch_syscall_multi_arch): Skip it on aarch64*-linux*
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target.
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(setup_all_syscalls): New proc.
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2015-03-16 Yao Qi <yao.qi@linaro.org>
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* gdb.base/watchpoint-reuse-slot.exp (valid_addr_p): New proc.
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@ -21,7 +21,11 @@ int chroot_syscall = SYS_chroot;
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restart_syscall, which can't be called from userspace. However,
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the "read" syscall is zero on x86_64. */
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int read_syscall = SYS_read;
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#ifdef SYS_pipe
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int pipe_syscall = SYS_pipe;
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#else
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int pipe2_syscall = SYS_pipe2;
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#endif
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int write_syscall = SYS_write;
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int exit_group_syscall = SYS_exit_group;
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@ -29,7 +29,7 @@ if { ![istarget "x86_64-*-linux*"] && ![istarget "i\[34567\]86-*-linux*"]
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&& ![istarget "powerpc-*-linux*"] && ![istarget "powerpc64-*-linux*"]
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&& ![istarget "sparc-*-linux*"] && ![istarget "sparc64-*-linux*"]
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&& ![istarget "mips*-linux*"] && ![istarget "arm*-linux*"]
|
||||
&& ![istarget "s390*-linux*"] } {
|
||||
&& ![istarget "s390*-linux*"] && ![istarget "aarch64*-*-linux*"] } {
|
||||
continue
|
||||
}
|
||||
|
||||
@ -40,9 +40,9 @@ if { [prepare_for_testing ${testfile}.exp $testfile ${testfile}.c] } {
|
||||
return -1
|
||||
}
|
||||
|
||||
# All (but the last) syscalls from the example code
|
||||
# They are ordered according to the file, so do not change this.
|
||||
set all_syscalls { "close" "chroot" "pipe" "write" "read" }
|
||||
# All (but the last) syscalls from the example code. It is filled in
|
||||
# proc setup_all_syscalls.
|
||||
set all_syscalls { }
|
||||
set all_syscalls_numbers { }
|
||||
|
||||
# The last syscall (exit()) does not return, so
|
||||
@ -402,6 +402,9 @@ proc test_catch_syscall_multi_arch {} {
|
||||
# catch syscall supports only 32-bit ARM for now.
|
||||
verbose "Not testing ARM for multi-arch syscall support"
|
||||
return
|
||||
} elseif { [istarget "aarch64*-linux*"] } {
|
||||
verbose "Not testing AARCH64 for multi-arch syscall support"
|
||||
return
|
||||
} elseif { [istarget "s390*-linux*"] } {
|
||||
set arch1 "s390:31-bit"
|
||||
set arch2 "s390:64-bit"
|
||||
@ -469,6 +472,36 @@ proc fill_all_syscalls_numbers {} {
|
||||
set last_syscall_number [get_integer_valueof "exit_group_syscall" -1]
|
||||
}
|
||||
|
||||
# Set up the vector all_syscalls.
|
||||
|
||||
proc setup_all_syscalls {} {
|
||||
global all_syscalls
|
||||
global gdb_prompt
|
||||
|
||||
# They are ordered according to the file, so do not change this.
|
||||
lappend all_syscalls "close"
|
||||
lappend all_syscalls "chroot"
|
||||
|
||||
# SYS_pipe doesn't exist on aarch64 kernel.
|
||||
set test "check SYS_pipe"
|
||||
gdb_test_multiple "p pipe_syscall" $test {
|
||||
-re " = .*$gdb_prompt $" {
|
||||
pass $test
|
||||
lappend all_syscalls "pipe"
|
||||
}
|
||||
-re "No symbol .*$gdb_prompt $" {
|
||||
pass $test
|
||||
# SYS_pipe isn't defined, use SYS_pipe2 instead.
|
||||
lappend all_syscalls "pipe2"
|
||||
}
|
||||
}
|
||||
|
||||
lappend all_syscalls "write"
|
||||
lappend all_syscalls "read"
|
||||
}
|
||||
|
||||
setup_all_syscalls
|
||||
|
||||
# Fill all the syscalls numbers before starting anything.
|
||||
fill_all_syscalls_numbers
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user