| commit | bbd248ac0d75efdef8fe61ea69b1fb25fb95b6e7 | |
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Thu, 1 Feb 2024 17:29:53 +0000 (1 14:29 -0300) | ||
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Fri, 2 Feb 2024 13:28:16 +0000 (2 10:28 -0300) | ||
| tree | 9cb97b4ac0323c4c24c61805af42cb1a277b7ff5 | treesnapshot (tar.gz zip) |
| parent | e7b90e6e605cf236d4bd79e4930cd6a46f9932c7 | commitdiff |
mips: FIx clone3 implementation (BZ 31325)
For o32 we need to setup a minimal stack frame to allow cprestore
on __thread_start_clone3 (which instruct the linker to save the
gp for PIC). Also, there is no guarantee by kABI that $8 will be
preserved after syscall execution, so we need to save it on the
provided stack.
Checked on mipsel-linux-gnu.
Reported-by: Khem Raj <raj.khem@gmail.com>
Tested-by: Khem Raj <raj.khem@gmail.com>
For o32 we need to setup a minimal stack frame to allow cprestore
on __thread_start_clone3 (which instruct the linker to save the
gp for PIC). Also, there is no guarantee by kABI that $8 will be
preserved after syscall execution, so we need to save it on the
provided stack.
Checked on mipsel-linux-gnu.
Reported-by: Khem Raj <raj.khem@gmail.com>
Tested-by: Khem Raj <raj.khem@gmail.com>
| sysdeps/unix/sysv/linux/mips/clone3.S | diffblobblamehistory |