diff options
Diffstat (limited to 'tools')
11 files changed, 91 insertions, 41 deletions
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index 3430667b0d24..c1c285fe494a 100644 --- a/tools/include/nolibc/nolibc.h +++ b/tools/include/nolibc/nolibc.h @@ -265,12 +265,17 @@ struct stat { * - arguments are in rdi, rsi, rdx, r10, r8, r9 respectively * - the system call is performed by calling the syscall instruction * - syscall return comes in rax - * - rcx and r8..r11 may be clobbered, others are preserved. + * - rcx and r11 are clobbered, others are preserved. * - the arguments are cast to long and assigned into the target registers * which are then simply passed as registers to the asm code, so that we * don't have to experience issues with register constraints. * - the syscall number is always specified last in order to allow to force * some registers before (gcc refuses a %-register at the last position). + * - see also x86-64 ABI section A.2 AMD64 Linux Kernel Conventions, A.2.1 + * Calling Conventions. + * + * Link x86-64 ABI: https://gitlab.com/x86-psABIs/x86-64-ABI/-/wikis/x86-64-psABI + * */ #define my_syscall0(num) \ @@ -280,9 +285,9 @@ struct stat { \ asm volatile ( \ "syscall\n" \ - : "=a" (_ret) \ + : "=a"(_ret) \ : "0"(_num) \ - : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \ + : "rcx", "r11", "memory", "cc" \ ); \ _ret; \ }) @@ -295,10 +300,10 @@ struct stat { \ asm volatile ( \ "syscall\n" \ - : "=a" (_ret) \ + : "=a"(_ret) \ : "r"(_arg1), \ "0"(_num) \ - : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \ + : "rcx", "r11", "memory", "cc" \ ); \ _ret; \ }) @@ -312,10 +317,10 @@ struct stat { \ asm volatile ( \ "syscall\n" \ - : "=a" (_ret) \ + : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), \ "0"(_num) \ - : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \ + : "rcx", "r11", "memory", "cc" \ ); \ _ret; \ }) @@ -330,10 +335,10 @@ struct stat { \ asm volatile ( \ "syscall\n" \ - : "=a" (_ret) \ + : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), \ "0"(_num) \ - : "rcx", "r8", "r9", "r10", "r11", "memory", "cc" \ + : "rcx", "r11", "memory", "cc" \ ); \ _ret; \ }) @@ -349,10 +354,10 @@ struct stat { \ asm volatile ( \ "syscall\n" \ - : "=a" (_ret), "=r"(_arg4) \ + : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), \ "0"(_num) \ - : "rcx", "r8", "r9", "r11", "memory", "cc" \ + : "rcx", "r11", "memory", "cc" \ ); \ _ret; \ }) @@ -369,10 +374,10 @@ struct stat { \ asm volatile ( \ "syscall\n" \ - : "=a" (_ret), "=r"(_arg4), "=r"(_arg5) \ + : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ "0"(_num) \ - : "rcx", "r9", "r11", "memory", "cc" \ + : "rcx", "r11", "memory", "cc" \ ); \ _ret; \ }) @@ -390,7 +395,7 @@ struct stat { \ asm volatile ( \ "syscall\n" \ - : "=a" (_ret), "=r"(_arg4), "=r"(_arg5) \ + : "=a"(_ret) \ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ "r"(_arg6), "0"(_num) \ : "rcx", "r11", "memory", "cc" \ @@ -399,17 +404,23 @@ struct stat { }) /* startup code */ +/* + * x86-64 System V ABI mandates: + * 1) %rsp must be 16-byte aligned right before the function call. + * 2) The deepest stack frame should be zero (the %rbp). + * + */ asm(".section .text\n" ".global _start\n" "_start:\n" "pop %rdi\n" // argc (first arg, %rdi) "mov %rsp, %rsi\n" // argv[] (second arg, %rsi) "lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx) - "and $-16, %rsp\n" // x86 ABI : esp must be 16-byte aligned when - "sub $8, %rsp\n" // entering the callee + "xor %ebp, %ebp\n" // zero the stack frame + "and $-16, %rsp\n" // x86 ABI : esp must be 16-byte aligned before call "call main\n" // main() returns the status code, we'll exit with it. - "movzb %al, %rdi\n" // retrieve exit code from 8 lower bits - "mov $60, %rax\n" // NR_exit == 60 + "mov %eax, %edi\n" // retrieve exit code (32 bit) + "mov $60, %eax\n" // NR_exit == 60 "syscall\n" // really exit "hlt\n" // ensure it does not return ""); @@ -577,20 +588,28 @@ struct sys_stat_struct { }) /* startup code */ +/* + * i386 System V ABI mandates: + * 1) last pushed argument must be 16-byte aligned. + * 2) The deepest stack frame should be set to zero + * + */ asm(".section .text\n" ".global _start\n" "_start:\n" "pop %eax\n" // argc (first arg, %eax) "mov %esp, %ebx\n" // argv[] (second arg, %ebx) "lea 4(%ebx,%eax,4),%ecx\n" // then a NULL then envp (third arg, %ecx) - "and $-16, %esp\n" // x86 ABI : esp must be 16-byte aligned when + "xor %ebp, %ebp\n" // zero the stack frame + "and $-16, %esp\n" // x86 ABI : esp must be 16-byte aligned before + "sub $4, %esp\n" // the call instruction (args are aligned) "push %ecx\n" // push all registers on the stack so that we "push %ebx\n" // support both regparm and plain stack modes "push %eax\n" "call main\n" // main() returns the status code in %eax - "movzbl %al, %ebx\n" // retrieve exit code from lower 8 bits - "movl $1, %eax\n" // NR_exit == 1 - "int $0x80\n" // exit now + "mov %eax, %ebx\n" // retrieve exit code (32-bit int) + "movl $1, %eax\n" // NR_exit == 1 + "int $0x80\n" // exit now "hlt\n" // ensure it does not ""); @@ -774,7 +793,6 @@ asm(".section .text\n" "and %r3, %r1, $-8\n" // AAPCS : sp must be 8-byte aligned in the "mov %sp, %r3\n" // callee, an bl doesn't push (lr=pc) "bl main\n" // main() returns the status code, we'll exit with it. - "and %r0, %r0, $0xff\n" // limit exit code to 8 bits "movs r7, $1\n" // NR_exit == 1 "svc $0x00\n" ""); @@ -971,7 +989,6 @@ asm(".section .text\n" "add x2, x2, x1\n" // + argv "and sp, x1, -16\n" // sp must be 16-byte aligned in the callee "bl main\n" // main() returns the status code, we'll exit with it. - "and x0, x0, 0xff\n" // limit exit code to 8 bits "mov x8, 93\n" // NR_exit == 93 "svc #0\n" ""); @@ -1176,7 +1193,7 @@ asm(".section .text\n" "addiu $sp,$sp,-16\n" // the callee expects to save a0..a3 there! "jal main\n" // main() returns the status code, we'll exit with it. "nop\n" // delayed slot - "and $a0, $v0, 0xff\n" // limit exit code to 8 bits + "move $a0, $v0\n" // retrieve 32-bit exit code from v0 "li $v0, 4001\n" // NR_exit == 4001 "syscall\n" ".end __start\n" @@ -1374,7 +1391,6 @@ asm(".section .text\n" "add a2,a2,a1\n" // + argv "andi sp,a1,-16\n" // sp must be 16-byte aligned "call main\n" // main() returns the status code, we'll exit with it. - "andi a0, a0, 0xff\n" // limit exit code to 8 bits "li a7, 93\n" // NR_exit == 93 "ecall\n" ""); @@ -1556,6 +1572,12 @@ pid_t sys_getpid(void) } static __attribute__((unused)) +pid_t sys_gettid(void) +{ + return my_syscall0(__NR_gettid); +} + +static __attribute__((unused)) int sys_gettimeofday(struct timeval *tv, struct timezone *tz) { return my_syscall2(__NR_gettimeofday, tv, tz); @@ -2014,6 +2036,18 @@ pid_t getpid(void) } static __attribute__((unused)) +pid_t gettid(void) +{ + pid_t ret = sys_gettid(); + + if (ret < 0) { + SET_ERRNO(-ret); + ret = -1; + } + return ret; +} + +static __attribute__((unused)) int gettimeofday(struct timeval *tv, struct timezone *tz) { int ret = sys_gettimeofday(tv, tz); diff --git a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh index daf64b507038..2e9e9e2eedb6 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh @@ -30,9 +30,9 @@ editor=${EDITOR-vi} files= for i in ${rundir}/*/Make.out do - if egrep -q "error:|warning:" < $i + if egrep -q "error:|warning:|^ld: .*undefined reference to" < $i then - egrep "error:|warning:" < $i > $i.diags + egrep "error:|warning:|^ld: .*undefined reference to" < $i > $i.diags files="$files $i.diags $i" fi done diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh index fbdf162b6acd..1c4c2c727dad 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh @@ -25,7 +25,7 @@ stopstate="`grep 'End-test grace-period state: g' $i/console.log 2> /dev/null | tail -1 | sed -e 's/^\[[ 0-9.]*] //' | awk '{ print \"[\" $1 \" \" $5 \" \" $6 \" \" $7 \"]\"; }' | tr -d '\012\015'`" -fwdprog="`grep 'rcu_torture_fwd_prog_cr Duration' $i/console.log 2> /dev/null | sed -e 's/^\[[^]]*] //' | sort -k15nr | head -1 | awk '{ print $14 " " $15 }'`" +fwdprog="`grep 'rcu_torture_fwd_prog n_max_cbs: ' $i/console.log 2> /dev/null | sed -e 's/^\[[^]]*] //' | sort -k3nr | head -1 | awk '{ print $2 " " $3 }'`" if test -z "$ngps" then echo "$configfile ------- " $stopstate diff --git a/tools/testing/selftests/rcutorture/bin/kvm-remote.sh b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh index c7d42ef80c53..e09b1bc78708 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm-remote.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh @@ -144,7 +144,7 @@ do if test "$ret" -ne 0 then echo System $i unreachable, giving up. | tee -a "$oldrun/remote-log" - exit 4 | tee -a "$oldrun/remote-log" + exit 4 fi done @@ -157,8 +157,15 @@ do ret=$? if test "$ret" -ne 0 then - echo Unable to download $T/binres.tgz to system $i, giving up. | tee -a "$oldrun/remote-log" - exit 10 | tee -a "$oldrun/remote-log" + echo Unable to download $T/binres.tgz to system $i, waiting and then retrying. | tee -a "$oldrun/remote-log" + sleep 60 + cat $T/binres.tgz | ssh $i "cd /tmp; tar -xzf -" + ret=$? + if test "$ret" -ne 0 + then + echo Unable to download $T/binres.tgz to system $i, giving up. | tee -a "$oldrun/remote-log" + exit 10 + fi fi done @@ -177,16 +184,16 @@ checkremotefile () { ret=$? if test "$ret" -eq 255 then - echo " ---" ssh failure to $1 checking for file $2, retry after $sleeptime seconds. `date` + echo " ---" ssh failure to $1 checking for file $2, retry after $sleeptime seconds. `date` | tee -a "$oldrun/remote-log" elif test "$ret" -eq 0 then return 0 elif test "$ret" -eq 1 then - echo " ---" File \"$2\" not found: ssh $1 test -f \"$2\" + echo " ---" File \"$2\" not found: ssh $1 test -f \"$2\" | tee -a "$oldrun/remote-log" return 1 else - echo " ---" Exit code $ret: ssh $1 test -f \"$2\", retry after $sleeptime seconds. `date` + echo " ---" Exit code $ret: ssh $1 test -f \"$2\", retry after $sleeptime seconds. `date` | tee -a "$oldrun/remote-log" return $ret fi sleep $sleeptime @@ -245,7 +252,7 @@ do sleep 30 fi done -echo All batches started. `date` +echo All batches started. `date` | tee -a "$oldrun/remote-log" # Wait for all remaining scenarios to complete and collect results. for i in $systems @@ -254,7 +261,7 @@ do do sleep 30 done - echo " ---" Collecting results from $i `date` + echo " ---" Collecting results from $i `date` | tee -a "$oldrun/remote-log" ( cd "$oldrun"; ssh $i "cd $rundir; tar -czf - kvm-remote-*.sh.out */console.log */kvm-test-1-run*.sh.out */qemu[_-]pid */qemu-retval */qemu-affinity; rm -rf $T > /dev/null 2>&1" | tar -xzf - ) done diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh index 6cf9ec6a3d1c..6de0c183db5b 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh @@ -74,7 +74,9 @@ usage () { echo " --help" echo " --interactive" echo " --jitter N [ maxsleep (us) [ maxspin (us) ] ]" + echo " --kasan" echo " --kconfig Kconfig-options" + echo " --kcsan" echo " --kmake-arg kernel-make-arguments" echo " --mac nn:nn:nn:nn:nn:nn" echo " --memory megabytes|nnnG" @@ -83,6 +85,7 @@ usage () { echo " --qemu-cmd qemu-system-..." echo " --remote" echo " --results absolute-pathname" + echo " --shutdown-grace seconds" echo " --torture lock|rcu|rcuscale|refscale|scf" echo " --trust-make" exit 1 @@ -175,14 +178,14 @@ do jitter="$2" shift ;; + --kasan) + TORTURE_KCONFIG_KASAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG + ;; --kconfig|--kconfigs) checkarg --kconfig "(Kconfig options)" $# "$2" '^CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\( CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\)*$' '^error$' TORTURE_KCONFIG_ARG="`echo "$TORTURE_KCONFIG_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`" shift ;; - --kasan) - TORTURE_KCONFIG_KASAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG - ;; --kcsan) TORTURE_KCONFIG_KCSAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KCSAN=y CONFIG_KCSAN_STRICT=y CONFIG_KCSAN_REPORT_ONCE_IN_MS=100000 CONFIG_KCSAN_VERBOSE=y CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y"; export TORTURE_KCONFIG_KCSAN_ARG ;; diff --git a/tools/testing/selftests/rcutorture/bin/parse-build.sh b/tools/testing/selftests/rcutorture/bin/parse-build.sh index 9313e5065ae9..2dbfca3589b1 100755 --- a/tools/testing/selftests/rcutorture/bin/parse-build.sh +++ b/tools/testing/selftests/rcutorture/bin/parse-build.sh @@ -39,7 +39,8 @@ fi grep warning: < $F > $T/warnings grep "include/linux/*rcu*\.h:" $T/warnings > $T/hwarnings grep "kernel/rcu/[^/]*:" $T/warnings > $T/cwarnings -cat $T/hwarnings $T/cwarnings > $T/rcuwarnings +grep "^ld: .*undefined reference to" $T/warnings | head -1 > $T/ldwarnings +cat $T/hwarnings $T/cwarnings $T/ldwarnings > $T/rcuwarnings if test -s $T/rcuwarnings then print_warning $title build errors: diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot index 22cdeced98ea..30ca5b493c4b 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot +++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot @@ -1,2 +1,3 @@ rcutorture.torture_type=tasks rcutree.use_softirq=0 +rcupdate.rcu_task_enqueue_lim=4 diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01.boot index 9675ad632dcc..ba6d636a4856 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01.boot +++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01.boot @@ -1 +1,2 @@ rcutorture.torture_type=tasks-tracing +rcupdate.rcu_task_enqueue_lim=2 diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot index 9675ad632dcc..c70b5db6c2ae 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot +++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot @@ -1 +1,2 @@ rcutorture.torture_type=tasks-tracing +rcutorture.fwd_progress=2 diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot new file mode 100644 index 000000000000..dd914fa8f690 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot @@ -0,0 +1 @@ +rcutorture.fwd_progress=2 diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE10.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE10.boot new file mode 100644 index 000000000000..dd914fa8f690 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE10.boot @@ -0,0 +1 @@ +rcutorture.fwd_progress=2 |