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| author | Jiri Kosina <jkosina@suse.cz> | 2020-09-01 14:19:48 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2020-09-01 14:19:48 +0200 |
| commit | ead5d1f4d877e92c051e1a1ade623d0d30e71619 (patch) | |
| tree | cb9db5698a546e7b96f7d5bef5ce544629dd37a2 /scripts/sorttable.c | |
| parent | f53fa968a7344970b8f8a5707c39cdcf17a6f367 (diff) | |
| parent | b51594df17d0ce80b9f9f35394a1f42d7ac94472 (diff) | |
Merge branch 'master' into for-next
Sync with Linus' branch in order to be able to apply fixups
of more recent patches.
Diffstat (limited to 'scripts/sorttable.c')
| -rw-r--r-- | scripts/sorttable.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/scripts/sorttable.c b/scripts/sorttable.c index ec6b5e81eba1..0ef3abfc4a51 100644 --- a/scripts/sorttable.c +++ b/scripts/sorttable.c @@ -255,6 +255,45 @@ static void x86_sort_relative_table(char *extab_image, int image_size) } } +static void s390_sort_relative_table(char *extab_image, int image_size) +{ + int i; + + for (i = 0; i < image_size; i += 16) { + char *loc = extab_image + i; + uint64_t handler; + + w(r((uint32_t *)loc) + i, (uint32_t *)loc); + w(r((uint32_t *)(loc + 4)) + (i + 4), (uint32_t *)(loc + 4)); + /* + * 0 is a special self-relative handler value, which means that + * handler should be ignored. It is safe, because it means that + * handler field points to itself, which should never happen. + * When creating extable-relative values, keep it as 0, since + * this should never occur either: it would mean that handler + * field points to the first extable entry. + */ + handler = r8((uint64_t *)(loc + 8)); + if (handler) + handler += i + 8; + w8(handler, (uint64_t *)(loc + 8)); + } + + qsort(extab_image, image_size / 16, 16, compare_relative_table); + + for (i = 0; i < image_size; i += 16) { + char *loc = extab_image + i; + uint64_t handler; + + w(r((uint32_t *)loc) - i, (uint32_t *)loc); + w(r((uint32_t *)(loc + 4)) - (i + 4), (uint32_t *)(loc + 4)); + handler = r8((uint64_t *)(loc + 8)); + if (handler) + handler -= i + 8; + w8(handler, (uint64_t *)(loc + 8)); + } +} + static int do_file(char const *const fname, void *addr) { int rc = -1; @@ -297,6 +336,8 @@ static int do_file(char const *const fname, void *addr) custom_sort = x86_sort_relative_table; break; case EM_S390: + custom_sort = s390_sort_relative_table; + break; case EM_AARCH64: case EM_PARISC: case EM_PPC: |