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Message-ID: <mhng-BE7B7DA7-1D39-49CF-9A6D-7AEBFE5CD2FC@Palmers-Mini.rwc.dabbelt.com>
Date: Mon, 18 Aug 2025 10:54:42 -0700 (PDT)
From: Palmer Dabbelt <palmer@...belt.com>
To: gmonaco@...hat.com
CC: lkp@...el.com, namcao@...utronix.de, llvm@...ts.linux.dev,
oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, rostedt@...dmis.org
Subject: Re: kernel/trace/rv/monitors/sleep/sleep.c:130:7: error: use of undeclared identifier '__NR_clock_nanosleep'
On Mon, 18 Aug 2025 00:42:20 PDT (-0700), gmonaco@...hat.com wrote:
> On Sat, 2025-08-16 at 02:37 +0800, kernel test robot wrote:
>> tree:
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ma
>> ster
>> head: ee94b00c1a648530333d9734200be7a45e6e00cd
>> commit: f74f8bb246cf22f27752977da62079cb615f55b2 rv: Add rtapp_sleep
>> monitor
>> date: 5 weeks ago
>> config: riscv-randconfig-001-20250816
>> (https://download.01.org/0day-ci/archive/20250816/202508160204.SsFyNf
>> o6-lkp@...el.com/config)
>> compiler: clang version 22.0.0git
>> (https://github.com/llvm/llvm-project 93d24b6b7b148c47a2fa228a4ef3152
>> 4fa1d9f3f)
>> reproduce (this is a W=1 build):
>> (https://download.01.org/0day-ci/archive/20250816/202508160204.SsFyNf
>> o6-lkp@...el.com/reproduce)
>>
>> If you fix the issue in a separate patch/commit (i.e. not just a new
>> version of
>> the same patch/commit), kindly add following tags
>> > Reported-by: kernel test robot <lkp@...el.com>
>> > Closes:
>> > https://lore.kernel.org/oe-kbuild-all/202508160204.SsFyNfo6-lkp@intel.com/
>>
>
> Palmer, this issue is what you fix in
> https://lore.kernel.org/lkml/20250804194518.97620-2-palmer@dabbelt.com/
> , right?
Yes.
>> All errors (new ones prefixed by >>):
>>
>> In file included from arch/riscv/include/asm/io.h:136:
>> include/asm-generic/io.h:804:2: warning: performing pointer
>> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
>> arithmetic]
>> 804 | insb(addr, buffer, count);
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/riscv/include/asm/io.h:104:53: note: expanded from macro
>> 'insb'
>> 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE +
>> (addr), buffer, count)
>> | ~~~~~~~~~~ ^
>> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
>> In file included from include/linux/ftrace.h:10:
>> In file included from include/linux/trace_recursion.h:5:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:11:
>> In file included from
>> ./arch/riscv/include/generated/asm/hardirq.h:1:
>> In file included from include/asm-generic/hardirq.h:17:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:12:
>> In file included from arch/riscv/include/asm/io.h:136:
>> include/asm-generic/io.h:812:2: warning: performing pointer
>> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
>> arithmetic]
>> 812 | insw(addr, buffer, count);
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/riscv/include/asm/io.h:105:53: note: expanded from macro
>> 'insw'
>> 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE +
>> (addr), buffer, count)
>> | ~~~~~~~~~~ ^
>> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
>> In file included from include/linux/ftrace.h:10:
>> In file included from include/linux/trace_recursion.h:5:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:11:
>> In file included from
>> ./arch/riscv/include/generated/asm/hardirq.h:1:
>> In file included from include/asm-generic/hardirq.h:17:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:12:
>> In file included from arch/riscv/include/asm/io.h:136:
>> include/asm-generic/io.h:820:2: warning: performing pointer
>> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
>> arithmetic]
>> 820 | insl(addr, buffer, count);
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/riscv/include/asm/io.h:106:53: note: expanded from macro
>> 'insl'
>> 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE +
>> (addr), buffer, count)
>> | ~~~~~~~~~~ ^
>> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
>> In file included from include/linux/ftrace.h:10:
>> In file included from include/linux/trace_recursion.h:5:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:11:
>> In file included from
>> ./arch/riscv/include/generated/asm/hardirq.h:1:
>> In file included from include/asm-generic/hardirq.h:17:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:12:
>> In file included from arch/riscv/include/asm/io.h:136:
>> include/asm-generic/io.h:829:2: warning: performing pointer
>> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
>> arithmetic]
>> 829 | outsb(addr, buffer, count);
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/riscv/include/asm/io.h:118:55: note: expanded from macro
>> 'outsb'
>> 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE +
>> (addr), buffer, count)
>> | ~~~~~~~~~~ ^
>> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
>> In file included from include/linux/ftrace.h:10:
>> In file included from include/linux/trace_recursion.h:5:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:11:
>> In file included from
>> ./arch/riscv/include/generated/asm/hardirq.h:1:
>> In file included from include/asm-generic/hardirq.h:17:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:12:
>> In file included from arch/riscv/include/asm/io.h:136:
>> include/asm-generic/io.h:838:2: warning: performing pointer
>> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
>> arithmetic]
>> 838 | outsw(addr, buffer, count);
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/riscv/include/asm/io.h:119:55: note: expanded from macro
>> 'outsw'
>> 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE +
>> (addr), buffer, count)
>> | ~~~~~~~~~~ ^
>> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
>> In file included from include/linux/ftrace.h:10:
>> In file included from include/linux/trace_recursion.h:5:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:11:
>> In file included from
>> ./arch/riscv/include/generated/asm/hardirq.h:1:
>> In file included from include/asm-generic/hardirq.h:17:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:12:
>> In file included from arch/riscv/include/asm/io.h:136:
>> include/asm-generic/io.h:847:2: warning: performing pointer
>> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
>> arithmetic]
>> 847 | outsl(addr, buffer, count);
>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/riscv/include/asm/io.h:120:55: note: expanded from macro
>> 'outsl'
>> 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE +
>> (addr), buffer, count)
>> | ~~~~~~~~~~ ^
>> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
>> In file included from include/linux/ftrace.h:10:
>> In file included from include/linux/trace_recursion.h:5:
>> In file included from include/linux/interrupt.h:11:
>> In file included from include/linux/hardirq.h:11:
>> In file included from
>> ./arch/riscv/include/generated/asm/hardirq.h:1:
>> In file included from include/asm-generic/hardirq.h:17:
>> In file included from include/linux/irq.h:20:
>> In file included from include/linux/io.h:12:
>> In file included from arch/riscv/include/asm/io.h:136:
>> include/asm-generic/io.h:1175:55: warning: performing pointer
>> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
>> arithmetic]
>> 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL :
>> PCI_IOBASE + port;
>> |
>> ~~~~~~~~~~ ^
>> > > kernel/trace/rv/monitors/sleep/sleep.c:130:7: error: use of
>> > > undeclared identifier '__NR_clock_nanosleep'
>> 130 | case __NR_clock_nanosleep:
>> | ^~~~~~~~~~~~~~~~~~~~
>> > > kernel/trace/rv/monitors/sleep/sleep.c:141:7: error: use of
>> > > undeclared identifier '__NR_futex'
>> 141 | case __NR_futex:
>> | ^~~~~~~~~~
>> 7 warnings and 2 errors generated.
>>
>>
>> vim +/__NR_clock_nanosleep +130
>> kernel/trace/rv/monitors/sleep/sleep.c
>>
>> 120
>> 121 static void handle_sys_enter(void *data, struct pt_regs
>> *regs, long id)
>> 122 {
>> 123 struct ltl_monitor *mon;
>> 124 unsigned long args[6];
>> 125 int op, cmd;
>> 126
>> 127 mon = ltl_get_monitor(current);
>> 128
>> 129 switch (id) {
>> > 130 case __NR_clock_nanosleep:
>> 131 #ifdef __NR_clock_nanosleep_time64
>> 132 case __NR_clock_nanosleep_time64:
>> 133 #endif
>> 134 syscall_get_arguments(current, regs, args);
>> 135 ltl_atom_set(mon,
>> LTL_NANOSLEEP_CLOCK_MONOTONIC, args[0] == CLOCK_MONOTONIC);
>> 136 ltl_atom_set(mon, LTL_NANOSLEEP_CLOCK_TAI,
>> args[0] == CLOCK_TAI);
>> 137 ltl_atom_set(mon,
>> LTL_NANOSLEEP_TIMER_ABSTIME, args[1] == TIMER_ABSTIME);
>> 138 ltl_atom_update(current,
>> LTL_CLOCK_NANOSLEEP, true);
>> 139 break;
>> 140
>> > 141 case __NR_futex:
>> 142 #ifdef __NR_futex_time64
>> 143 case __NR_futex_time64:
>> 144 #endif
>> 145 syscall_get_arguments(current, regs, args);
>> 146 op = args[1];
>> 147 cmd = op & FUTEX_CMD_MASK;
>> 148
>> 149 switch (cmd) {
>> 150 case FUTEX_LOCK_PI:
>> 151 case FUTEX_LOCK_PI2:
>> 152 ltl_atom_update(current,
>> LTL_FUTEX_LOCK_PI, true);
>> 153 break;
>> 154 case FUTEX_WAIT:
>> 155 case FUTEX_WAIT_BITSET:
>> 156 case FUTEX_WAIT_REQUEUE_PI:
>> 157 ltl_atom_update(current,
>> LTL_FUTEX_WAIT, true);
>> 158 break;
>> 159 }
>> 160 break;
>> 161 }
>> 162 }
>> 163
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