From: Evgenii Shatokhin <e.shatokhin@yadro.com>
To: <guoren@kernel.org>, <suagrfillet@gmail.com>
Cc: <linux-riscv@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
<anup@brainfault.org>, <paul.walmsley@sifive.com>,
<palmer@dabbelt.com>, <conor.dooley@microchip.com>,
<heiko@sntech.de>, <rostedt@goodmis.org>, <mhiramat@kernel.org>,
<jolsa@redhat.com>, <bp@suse.de>, <jpoimboe@kernel.org>,
<andy.chiu@sifive.com>, <linux@yadro.com>
Subject: Re: [PATCH -next V7 6/7] samples: ftrace: Add riscv support for SAMPLE_FTRACE_DIRECT[_MULTI]
Date: Mon, 16 Jan 2023 17:30:13 +0300 [thread overview]
Message-ID: <a83dc6de-8fda-439d-b2dd-d05786e642eb@yadro.com> (raw)
In-Reply-To: <20230112090603.1295340-7-guoren@kernel.org>
Hi,
On 12.01.2023 12:06, guoren@kernel.org wrote:
> From: Song Shuai <suagrfillet@gmail.com>
>
> select HAVE_SAMPLE_FTRACE_DIRECT and HAVE_SAMPLE_FTRACE_DIRECT_MULTI
> for ARCH_RV64I in arch/riscv/Kconfig. And add riscv asm code for
> the ftrace-direct*.c files in samples/ftrace/.
>
> Signed-off-by: Song Shuai <suagrfillet@gmail.com>
> Tested-by: Guo Ren <guoren@kernel.org>
> Signed-off-by: Guo Ren <guoren@kernel.org>
> ---
> arch/riscv/Kconfig | 2 ++
> samples/ftrace/ftrace-direct-modify.c | 33 ++++++++++++++++++
> samples/ftrace/ftrace-direct-multi-modify.c | 37 +++++++++++++++++++++
> samples/ftrace/ftrace-direct-multi.c | 22 ++++++++++++
> samples/ftrace/ftrace-direct-too.c | 26 +++++++++++++++
> samples/ftrace/ftrace-direct.c | 22 ++++++++++++
> 6 files changed, 142 insertions(+)
The samples were built OK now, but ftrace-direct-multi and
ftrace-direct-multi-modify report incorrect values of ip/pc it seems.
I ran 'insmod ftrace-direct-multi.ko', waited a little and then checked
the messages in the trace:
# TASK-PID CPU# ||||| TIMESTAMP FUNCTION
# | | | ||||| | |
migration/1-19 [001] ..... 3858.532131: my_direct_func1: my
direct func1 ip 0
migration/0-15 [000] d.s2. 3858.532136: my_direct_func1: my
direct func1 ip ff60000001ba9600
migration/0-15 [000] d..2. 3858.532204: my_direct_func1: my
direct func1 ip ff60000003334d00
migration/0-15 [000] ..... 3858.532232: my_direct_func1: my
direct func1 ip 0
rcu_sched-14 [001] ..... 3858.532257: my_direct_func1: my
direct func1 ip 0
insmod-415 [000] ..... 3858.532270: my_direct_func1: my
direct func1 ip 7fffffffffffffff
<idle>-0 [001] ..s1. 3858.539051: my_direct_func1: my
direct func1 ip ff60000001ba9600
<idle>-0 [001] dns2. 3858.539124: my_direct_func1: my
direct func1 ip ff60000001ba9600
rcu_sched-14 [001] ..... 3858.539208: my_direct_func1: my
direct func1 ip 0
[...]
If I understand it right, my_direct_func1() should print the address of
some location in the code, probably - at the beginning of the traced
functions.
The printed values (0x0, 0x7fffffffffffffff, ...) are not valid code
addresses.
The same issue is with ftrace-direct-multi-modify.ko.
Is anything missing here?
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 307a9f413edd..e944af44f681 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -112,6 +112,8 @@ config RISCV
> select HAVE_POSIX_CPU_TIMERS_TASK_WORK
> select HAVE_REGS_AND_STACK_ACCESS_API
> select HAVE_FUNCTION_ARG_ACCESS_API
> + select HAVE_SAMPLE_FTRACE_DIRECT
> + select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
> select HAVE_STACKPROTECTOR
> select HAVE_SYSCALL_TRACEPOINTS
> select HAVE_RSEQ
> diff --git a/samples/ftrace/ftrace-direct-modify.c b/samples/ftrace/ftrace-direct-modify.c
> index de5a0f67f320..be7bf472c3c7 100644
> --- a/samples/ftrace/ftrace-direct-modify.c
> +++ b/samples/ftrace/ftrace-direct-modify.c
> @@ -23,6 +23,39 @@ extern void my_tramp2(void *);
>
> static unsigned long my_ip = (unsigned long)schedule;
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp1, @function\n"
> +" .globl my_tramp1\n"
> +" my_tramp1:\n"
> +" addi sp,sp,-16\n"
> +" sd t0,0(sp)\n"
> +" sd ra,8(sp)\n"
> +" call my_direct_func1\n"
> +" ld t0,0(sp)\n"
> +" ld ra,8(sp)\n"
> +" addi sp,sp,16\n"
> +" jr t0\n"
> +" .size my_tramp1, .-my_tramp1\n"
> +
> +" .type my_tramp2, @function\n"
> +" .globl my_tramp2\n"
> +" my_tramp2:\n"
> +" addi sp,sp,-16\n"
> +" sd t0,0(sp)\n"
> +" sd ra,8(sp)\n"
> +" call my_direct_func2\n"
> +" ld t0,0(sp)\n"
> +" ld ra,8(sp)\n"
> +" addi sp,sp,16\n"
> +" jr t0\n"
> +" .size my_tramp2, .-my_tramp2\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct-multi-modify.c b/samples/ftrace/ftrace-direct-multi-modify.c
> index d52370cad0b6..10884bf418f7 100644
> --- a/samples/ftrace/ftrace-direct-multi-modify.c
> +++ b/samples/ftrace/ftrace-direct-multi-modify.c
> @@ -21,6 +21,43 @@ void my_direct_func2(unsigned long ip)
> extern void my_tramp1(void *);
> extern void my_tramp2(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp1, @function\n"
> +" .globl my_tramp1\n"
> +" my_tramp1:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func1\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp1, .-my_tramp1\n"
> +
> +" .type my_tramp2, @function\n"
> +" .globl my_tramp2\n"
> +" my_tramp2:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func2\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp2, .-my_tramp2\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct-multi.c b/samples/ftrace/ftrace-direct-multi.c
> index ec1088922517..a35bf43bf6d7 100644
> --- a/samples/ftrace/ftrace-direct-multi.c
> +++ b/samples/ftrace/ftrace-direct-multi.c
> @@ -16,6 +16,28 @@ void my_direct_func(unsigned long ip)
>
> extern void my_tramp(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp, @function\n"
> +" .globl my_tramp\n"
> +" my_tramp:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp, .-my_tramp\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct-too.c b/samples/ftrace/ftrace-direct-too.c
> index e13fb59a2b47..3b62e33c2e6d 100644
> --- a/samples/ftrace/ftrace-direct-too.c
> +++ b/samples/ftrace/ftrace-direct-too.c
> @@ -18,6 +18,32 @@ void my_direct_func(struct vm_area_struct *vma,
>
> extern void my_tramp(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp, @function\n"
> +" .globl my_tramp\n"
> +" my_tramp:\n"
> +" addi sp,sp,-40\n"
> +" sd a0,0(sp)\n"
> +" sd a1,8(sp)\n"
> +" sd a2,16(sp)\n"
> +" sd t0,24(sp)\n"
> +" sd ra,32(sp)\n"
> +" call my_direct_func\n"
> +" ld a0,0(sp)\n"
> +" ld a1,8(sp)\n"
> +" ld a2,16(sp)\n"
> +" ld t0,24(sp)\n"
> +" ld ra,32(sp)\n"
> +" addi sp,sp,40\n"
> +" jr t0\n"
> +" .size my_tramp, .-my_tramp\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c
> index 1f769d0db20f..2cfe5a7d2d70 100644
> --- a/samples/ftrace/ftrace-direct.c
> +++ b/samples/ftrace/ftrace-direct.c
> @@ -15,6 +15,28 @@ void my_direct_func(struct task_struct *p)
>
> extern void my_tramp(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp, @function\n"
> +" .globl my_tramp\n"
> +" my_tramp:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp, .-my_tramp\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> --
> 2.36.1
>
>
Regards,
Evgenii
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linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Evgenii Shatokhin <e.shatokhin@yadro.com>
To: <guoren@kernel.org>, <suagrfillet@gmail.com>
Cc: <linux-riscv@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
<anup@brainfault.org>, <paul.walmsley@sifive.com>,
<palmer@dabbelt.com>, <conor.dooley@microchip.com>,
<heiko@sntech.de>, <rostedt@goodmis.org>, <mhiramat@kernel.org>,
<jolsa@redhat.com>, <bp@suse.de>, <jpoimboe@kernel.org>,
<andy.chiu@sifive.com>, <linux@yadro.com>
Subject: Re: [PATCH -next V7 6/7] samples: ftrace: Add riscv support for SAMPLE_FTRACE_DIRECT[_MULTI]
Date: Mon, 16 Jan 2023 17:30:13 +0300 [thread overview]
Message-ID: <a83dc6de-8fda-439d-b2dd-d05786e642eb@yadro.com> (raw)
In-Reply-To: <20230112090603.1295340-7-guoren@kernel.org>
Hi,
On 12.01.2023 12:06, guoren@kernel.org wrote:
> From: Song Shuai <suagrfillet@gmail.com>
>
> select HAVE_SAMPLE_FTRACE_DIRECT and HAVE_SAMPLE_FTRACE_DIRECT_MULTI
> for ARCH_RV64I in arch/riscv/Kconfig. And add riscv asm code for
> the ftrace-direct*.c files in samples/ftrace/.
>
> Signed-off-by: Song Shuai <suagrfillet@gmail.com>
> Tested-by: Guo Ren <guoren@kernel.org>
> Signed-off-by: Guo Ren <guoren@kernel.org>
> ---
> arch/riscv/Kconfig | 2 ++
> samples/ftrace/ftrace-direct-modify.c | 33 ++++++++++++++++++
> samples/ftrace/ftrace-direct-multi-modify.c | 37 +++++++++++++++++++++
> samples/ftrace/ftrace-direct-multi.c | 22 ++++++++++++
> samples/ftrace/ftrace-direct-too.c | 26 +++++++++++++++
> samples/ftrace/ftrace-direct.c | 22 ++++++++++++
> 6 files changed, 142 insertions(+)
The samples were built OK now, but ftrace-direct-multi and
ftrace-direct-multi-modify report incorrect values of ip/pc it seems.
I ran 'insmod ftrace-direct-multi.ko', waited a little and then checked
the messages in the trace:
# TASK-PID CPU# ||||| TIMESTAMP FUNCTION
# | | | ||||| | |
migration/1-19 [001] ..... 3858.532131: my_direct_func1: my
direct func1 ip 0
migration/0-15 [000] d.s2. 3858.532136: my_direct_func1: my
direct func1 ip ff60000001ba9600
migration/0-15 [000] d..2. 3858.532204: my_direct_func1: my
direct func1 ip ff60000003334d00
migration/0-15 [000] ..... 3858.532232: my_direct_func1: my
direct func1 ip 0
rcu_sched-14 [001] ..... 3858.532257: my_direct_func1: my
direct func1 ip 0
insmod-415 [000] ..... 3858.532270: my_direct_func1: my
direct func1 ip 7fffffffffffffff
<idle>-0 [001] ..s1. 3858.539051: my_direct_func1: my
direct func1 ip ff60000001ba9600
<idle>-0 [001] dns2. 3858.539124: my_direct_func1: my
direct func1 ip ff60000001ba9600
rcu_sched-14 [001] ..... 3858.539208: my_direct_func1: my
direct func1 ip 0
[...]
If I understand it right, my_direct_func1() should print the address of
some location in the code, probably - at the beginning of the traced
functions.
The printed values (0x0, 0x7fffffffffffffff, ...) are not valid code
addresses.
The same issue is with ftrace-direct-multi-modify.ko.
Is anything missing here?
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 307a9f413edd..e944af44f681 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -112,6 +112,8 @@ config RISCV
> select HAVE_POSIX_CPU_TIMERS_TASK_WORK
> select HAVE_REGS_AND_STACK_ACCESS_API
> select HAVE_FUNCTION_ARG_ACCESS_API
> + select HAVE_SAMPLE_FTRACE_DIRECT
> + select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
> select HAVE_STACKPROTECTOR
> select HAVE_SYSCALL_TRACEPOINTS
> select HAVE_RSEQ
> diff --git a/samples/ftrace/ftrace-direct-modify.c b/samples/ftrace/ftrace-direct-modify.c
> index de5a0f67f320..be7bf472c3c7 100644
> --- a/samples/ftrace/ftrace-direct-modify.c
> +++ b/samples/ftrace/ftrace-direct-modify.c
> @@ -23,6 +23,39 @@ extern void my_tramp2(void *);
>
> static unsigned long my_ip = (unsigned long)schedule;
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp1, @function\n"
> +" .globl my_tramp1\n"
> +" my_tramp1:\n"
> +" addi sp,sp,-16\n"
> +" sd t0,0(sp)\n"
> +" sd ra,8(sp)\n"
> +" call my_direct_func1\n"
> +" ld t0,0(sp)\n"
> +" ld ra,8(sp)\n"
> +" addi sp,sp,16\n"
> +" jr t0\n"
> +" .size my_tramp1, .-my_tramp1\n"
> +
> +" .type my_tramp2, @function\n"
> +" .globl my_tramp2\n"
> +" my_tramp2:\n"
> +" addi sp,sp,-16\n"
> +" sd t0,0(sp)\n"
> +" sd ra,8(sp)\n"
> +" call my_direct_func2\n"
> +" ld t0,0(sp)\n"
> +" ld ra,8(sp)\n"
> +" addi sp,sp,16\n"
> +" jr t0\n"
> +" .size my_tramp2, .-my_tramp2\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct-multi-modify.c b/samples/ftrace/ftrace-direct-multi-modify.c
> index d52370cad0b6..10884bf418f7 100644
> --- a/samples/ftrace/ftrace-direct-multi-modify.c
> +++ b/samples/ftrace/ftrace-direct-multi-modify.c
> @@ -21,6 +21,43 @@ void my_direct_func2(unsigned long ip)
> extern void my_tramp1(void *);
> extern void my_tramp2(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp1, @function\n"
> +" .globl my_tramp1\n"
> +" my_tramp1:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func1\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp1, .-my_tramp1\n"
> +
> +" .type my_tramp2, @function\n"
> +" .globl my_tramp2\n"
> +" my_tramp2:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func2\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp2, .-my_tramp2\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct-multi.c b/samples/ftrace/ftrace-direct-multi.c
> index ec1088922517..a35bf43bf6d7 100644
> --- a/samples/ftrace/ftrace-direct-multi.c
> +++ b/samples/ftrace/ftrace-direct-multi.c
> @@ -16,6 +16,28 @@ void my_direct_func(unsigned long ip)
>
> extern void my_tramp(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp, @function\n"
> +" .globl my_tramp\n"
> +" my_tramp:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp, .-my_tramp\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct-too.c b/samples/ftrace/ftrace-direct-too.c
> index e13fb59a2b47..3b62e33c2e6d 100644
> --- a/samples/ftrace/ftrace-direct-too.c
> +++ b/samples/ftrace/ftrace-direct-too.c
> @@ -18,6 +18,32 @@ void my_direct_func(struct vm_area_struct *vma,
>
> extern void my_tramp(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp, @function\n"
> +" .globl my_tramp\n"
> +" my_tramp:\n"
> +" addi sp,sp,-40\n"
> +" sd a0,0(sp)\n"
> +" sd a1,8(sp)\n"
> +" sd a2,16(sp)\n"
> +" sd t0,24(sp)\n"
> +" sd ra,32(sp)\n"
> +" call my_direct_func\n"
> +" ld a0,0(sp)\n"
> +" ld a1,8(sp)\n"
> +" ld a2,16(sp)\n"
> +" ld t0,24(sp)\n"
> +" ld ra,32(sp)\n"
> +" addi sp,sp,40\n"
> +" jr t0\n"
> +" .size my_tramp, .-my_tramp\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c
> index 1f769d0db20f..2cfe5a7d2d70 100644
> --- a/samples/ftrace/ftrace-direct.c
> +++ b/samples/ftrace/ftrace-direct.c
> @@ -15,6 +15,28 @@ void my_direct_func(struct task_struct *p)
>
> extern void my_tramp(void *);
>
> +#ifdef CONFIG_RISCV
> +
> +asm (" .pushsection .text, \"ax\", @progbits\n"
> +" .type my_tramp, @function\n"
> +" .globl my_tramp\n"
> +" my_tramp:\n"
> +" addi sp,sp,-24\n"
> +" sd a0,0(sp)\n"
> +" sd t0,8(sp)\n"
> +" sd ra,16(sp)\n"
> +" call my_direct_func\n"
> +" ld a0,0(sp)\n"
> +" ld t0,8(sp)\n"
> +" ld ra,16(sp)\n"
> +" addi sp,sp,24\n"
> +" jr t0\n"
> +" .size my_tramp, .-my_tramp\n"
> +" .popsection\n"
> +);
> +
> +#endif /* CONFIG_RISCV */
> +
> #ifdef CONFIG_X86_64
>
> #include <asm/ibt.h>
> --
> 2.36.1
>
>
Regards,
Evgenii
next prev parent reply other threads:[~2023-01-16 14:30 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-12 9:05 [PATCH -next V7 0/7] riscv: Optimize function trace guoren
2023-01-12 9:05 ` guoren
2023-01-12 9:05 ` [PATCH -next V7 1/7] riscv: ftrace: Fixup panic by disabling preemption guoren
2023-01-12 9:05 ` guoren
2023-01-12 12:16 ` Mark Rutland
2023-01-12 12:16 ` Mark Rutland
2023-01-12 12:57 ` Mark Rutland
2023-01-12 12:57 ` Mark Rutland
2023-01-28 9:45 ` Guo Ren
2023-01-28 9:45 ` Guo Ren
2023-01-28 9:37 ` Guo Ren
2023-01-28 9:37 ` Guo Ren
2023-01-30 10:54 ` Mark Rutland
2023-01-30 10:54 ` Mark Rutland
2023-02-04 1:19 ` Guo Ren
2023-02-04 1:19 ` Guo Ren
2023-01-12 9:05 ` [PATCH -next V7 2/7] riscv: ftrace: Remove wasted nops for !RISCV_ISA_C guoren
2023-01-12 9:05 ` guoren
2023-01-12 9:05 ` [PATCH -next V7 3/7] riscv: ftrace: Reduce the detour code size to half guoren
2023-01-12 9:05 ` guoren
2023-01-16 14:11 ` Evgenii Shatokhin
2023-01-16 14:11 ` Evgenii Shatokhin
2023-01-12 9:06 ` [PATCH -next V7 4/7] riscv: ftrace: Add ftrace_graph_func guoren
2023-01-12 9:06 ` guoren
2023-01-12 9:06 ` [PATCH -next V7 5/7] riscv: ftrace: Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS support guoren
2023-01-12 9:06 ` guoren
2023-01-12 9:06 ` [PATCH -next V7 6/7] samples: ftrace: Add riscv support for SAMPLE_FTRACE_DIRECT[_MULTI] guoren
2023-01-12 9:06 ` guoren
2023-01-16 14:30 ` Evgenii Shatokhin [this message]
2023-01-16 14:30 ` Evgenii Shatokhin
2023-01-17 9:32 ` Song Shuai
2023-01-17 9:32 ` Song Shuai
2023-01-17 13:16 ` Evgenii Shatokhin
2023-01-17 13:16 ` Evgenii Shatokhin
2023-01-17 16:22 ` Evgenii Shatokhin
2023-01-17 16:22 ` Evgenii Shatokhin
2023-01-18 2:37 ` Song Shuai
2023-01-18 2:37 ` Song Shuai
2023-01-18 15:19 ` Evgenii Shatokhin
2023-01-18 15:19 ` Evgenii Shatokhin
2023-01-19 6:05 ` Guo Ren
2023-01-19 6:05 ` Guo Ren
2023-02-18 21:30 ` Palmer Dabbelt
2023-02-18 21:30 ` Palmer Dabbelt
2023-02-20 2:46 ` Song Shuai
2023-02-20 2:46 ` Song Shuai
2023-02-21 3:56 ` Guo Ren
2023-02-21 3:56 ` Guo Ren
2023-02-21 4:02 ` Guo Ren
2023-02-21 4:02 ` Guo Ren
2023-01-12 9:06 ` [PATCH -next V7 7/7] riscv : select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY guoren
2023-01-12 9:06 ` guoren
2023-01-16 15:02 ` [PATCH -next V7 0/7] riscv: Optimize function trace Evgenii Shatokhin
2023-01-16 15:02 ` Evgenii Shatokhin
2023-02-04 6:40 ` Guo Ren
2023-02-04 6:40 ` Guo Ren
2023-02-06 9:56 ` Mark Rutland
2023-02-06 9:56 ` Mark Rutland
2023-02-07 3:57 ` Guo Ren
2023-02-07 3:57 ` Guo Ren
2023-02-07 9:16 ` Mark Rutland
2023-02-07 9:16 ` Mark Rutland
2023-02-08 2:30 ` Guo Ren
2023-02-08 2:30 ` Guo Ren
2023-02-08 14:46 ` Mark Rutland
2023-02-08 14:46 ` Mark Rutland
2023-02-09 1:31 ` Guo Ren
2023-02-09 1:31 ` Guo Ren
2023-02-09 22:46 ` David Laight
2023-02-09 22:46 ` David Laight
2023-02-10 2:18 ` Guo Ren
2023-02-10 2:18 ` Guo Ren
2023-02-08 22:29 ` David Laight
2023-02-08 22:29 ` David Laight
2023-02-09 1:51 ` Guo Ren
2023-02-09 1:51 ` Guo Ren
2023-02-09 1:59 ` Guo Ren
2023-02-09 1:59 ` Guo Ren
2023-02-09 9:54 ` Mark Rutland
2023-02-09 9:54 ` Mark Rutland
2023-02-10 2:21 ` Guo Ren
2023-02-10 2:21 ` Guo Ren
2023-02-09 9:00 ` David Laight
2023-02-09 9:00 ` David Laight
2023-02-09 9:11 ` Guo Ren
2023-02-09 9:11 ` Guo Ren
2023-02-18 21:42 ` patchwork-bot+linux-riscv
2023-02-18 21:42 ` patchwork-bot+linux-riscv
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