[PATCH v6 00/21] ILP32 for ARM64

On Wed, May 25, 2016 at 11:42:04AM +0100, Szabolcs Nagy wrote:

On 24/05/16 01:04, Yury Norov wrote:

quoted

This version is based on kernel v4.6.
It works with glibc-2.23, and tested with LTP.

...

quoted

ILP32 glibc branch is available here:
https://github.com/norov/glibc/tree/ilp32-2.23

It is tested with this series with no major downsides. I will send it to 
glibc-alpha soon, after final revise. Please review and comment it as well.

i spotted one __ilp32__ vs __ILP32__ typo in the glibc code,

Yes, I also found it. Thank you.

i can review it in detail when there is a cleaned up patch set.

in general the approach seems ok, the ugly part is when lp64
and ilp32 share code, but ilp32 needs some tweaks compared to
the current code (e.g. x vs w regs in asm, long changed to
long long in syscalls, different relocations etc) those will
be hard to review. the naming is sometimes _be_ilp32 sometimes
ilp32_be, but let's hope there will be no new abi variant to
confuse this further.

I think I shared the link too soon, and patches should be revised 
again. So I continue the work on it. If you curious, find it here.
https://github.com/norov/glibc/tree/ilp32-dev
(I don't promise I'll keep it stable, or will avoid using things like
fast-forward. It's just a branch for my experiments.)

For now, it has fixed:
 - __ilp32__ mess (by introducing DELOUSE() macro);
 - few unneeded patches dropped;
 - 32-bit off_t turned to 64-bit.

With all changes, LPT fail list grows:
peio_3                       FAIL       5    
pipeio_6                       FAIL       1    
abort01                        FAIL       2    
clone02                        FAIL       4    
fcntl11                        FAIL       1    
fcntl14                        FAIL       1    
fcntl17                        FAIL       1    
fcntl19                        FAIL       1    
fcntl20                        FAIL       1    
fcntl21                        FAIL       1    
fpathconf01                    FAIL       1    
ftruncate04                    FAIL       1    
kill11                         FAIL       2    
mmap16                         FAIL       6    
open12                         FAIL       2    
pread01                        FAIL       2    
pread02                        FAIL       2    
pread03                        FAIL       2    
preadv01                       FAIL       6    
preadv02                       FAIL       6    
pwrite01                       FAIL       2    
pwrite02                       FAIL       2    
pwrite04                       FAIL       6    
pwrite02_64                    FAIL       1    
pwritev01                      FAIL       2    
pwritev02                      FAIL       2    
rename11                       FAIL       2    
rmdir02                        FAIL       2    
umount2_01                     FAIL       2    
umount2_02                     FAIL       2    
umount2_03                     FAIL       2    
utime06                        FAIL       2    
mtest01                        FAIL       1    
mtest01w                       FAIL       1    
mtest06                        FAIL       11   
gf01                           FAIL       1    
gf02                           FAIL       1    
gf07                           FAIL       1    
gf10                           FAIL       1    
gf11                           FAIL       1    
gf15                           FAIL       1    
gf18                           FAIL       1    
gf19                           FAIL       1    

Yury