I found adding the same #pragma directives warp to #include
makes the compiler error go away!
#pragma GCC push_options
#pragma GCC optimize ("O0")
#include
#pragma GCC pop_option
Chan
From: Chan Kim
Sent: Sunday, January 23, 2022 8:23 PM
To: kernelnewbies@kernelnewbies.org
Hello all,
In linux 5.4.21, when tell the compiler to use no optimzation for function
early_fixmap_init as below,
(I need to compile with O0 to follow what's happening here using gdb.)
#pragma GCC push_options
#pragma GCC optimze ("O0")
void __init early_fixmap_init(void)
{
...
}
#pragma
Hello all,
In linux 5.4.21 source code, I put
#pragma GCC push_options
#pragma GCC optimize ("O0")
and
#pragma GCC pop_options
around function static int __init gic_init_bases in file
drivers/irqchip/irq-gic-v3.c.
When I build it, I get this warning message (section
On Sun, Jan 23, 2022 at 08:55:30PM +1300, Paulo Miguel Almeida wrote:
> > > 1: Given the driver's history and ioctl number conflit, is the backwards
> > > compatibility something to be kept or not to be taken into consideration
> > > as ioctl numbering rules weren't followed?
> >
> > Try to find
On Sun, Jan 23, 2022 at 07:48:01PM +0900, Chan Kim wrote:
> Hello all,
>
>
>
> In linux 5.4.21 source code, I put
>
> #pragma GCC push_options
>
> #pragma GCC optimize ("O0")
Do not do that. Bad things will happen, the kernel really does not like
this at all.
Why do you want to
I found adding __init to gic_smp_init() removed this warning message.
Is it ok to move this function to .init.text ? (doesn't it cause it to be
removed after initialization?)
Chan
From: Chan Kim
Sent: Sunday, January 23, 2022 7:48 PM
To: kernelnewbies@kernelnewbies.org
Subject: how to fix
Hi, As I sent already the error message shows the discrepancy starts from
include/linux/cache.h,
So I added the same #pragma thing around that #include and the
compile error is gone.
This is only for debugging a boot failure in a qemu machine (which is for a
real fpga board), so I can follow
On Sun, Jan 23, 2022 at 4:23 AM Chan Kim wrote:
>
> Hello all,
>
> In linux 5.4.21, when tell the compiler to use no optimzation for function
> early_fixmap_init as below,
>
> (I need to compile with O0 to follow what’s happening here using gdb.)
>
> #pragma GCC push_options
>
> #pragma GCC
On Sun, Jan 23, 2022 at 12:04:48PM +0100, Greg KH wrote:
> On Sun, Jan 23, 2022 at 08:55:30PM +1300, Paulo Miguel Almeida wrote:
> >
> > I googled a fair bit of time and I'm 99% confident that there isn't such
> > userspace/lib tool so I guess this will have done the hard way :(
>
> If there is
On Mon, Jan 24, 2022 at 05:49:06PM +1300, Paulo Miguel Almeida wrote:
> On Sun, Jan 23, 2022 at 12:04:48PM +0100, Greg KH wrote:
> > On Sun, Jan 23, 2022 at 08:55:30PM +1300, Paulo Miguel Almeida wrote:
> > >
> > > I googled a fair bit of time and I'm 99% confident that there isn't such
> > >
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