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authorMaxime Ripard <maxime@cerno.tech>2020-08-18 15:14:25 +0300
committerMaxime Ripard <maxime@cerno.tech>2020-08-18 15:14:25 +0300
commitd85ddd1318e66c0c2665dbfcbc21a8b66c9152aa (patch)
treee49e401abd2468b398d4bc84c7e05c2c2c3b0966 /scripts/sorttable.c
parent652bcaec7da0f06f00be578c200e1c57099449d2 (diff)
parent9123e3a74ec7b934a4a099e98af6a61c2f80bbf5 (diff)
downloadlinux-d85ddd1318e66c0c2665dbfcbc21a8b66c9152aa.tar.xz
Merge v5.9-rc1 into drm-misc-next
Sam needs 5.9-rc1 to have dev_err_probe in to merge some patches. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'scripts/sorttable.c')
-rw-r--r--scripts/sorttable.c41
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: