[Bug c/105134] tree-vectorize produces error code
piliu at redhat dot com
gcc-bugzilla@gcc.gnu.org
Sat Apr 2 03:01:32 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105134
--- Comment #1 from piliu at redhat dot com ---
More description about the background.
There is a built file kexec-tools/purgatory/purgatory.ro, which is a tiny
bootload, compare and verify the sha256, if ok, then jump to the 2nd kernel.
The original sha256 value comes from
update_purgatory()
{
......
elf_rel_set_symbol(&info->rhdr, "sha256_regions", ®ion,
sizeof(region));
elf_rel_set_symbol(&info->rhdr, "sha256_digest", &digest,
sizeof(digest));
}
They are based on the loaded linux kernel image.
Now, "kexec -e" and purgatory.ro runs, and in
void purgatory(void)
{
printf("I'm in purgatory\n");
setup_arch();
if (!skip_checks && verify_sha256_digest()) {
for(;;) {
/* loop forever */ ------> stuck here
}
}
post_verification_setup_arch();
}
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