s390: Use long branches across object boundaries (jgh instead of jh)

Depending on the layout chosen by the linker, the 16-bit displacement
of the jh instruction is insufficient to reach the target label.

Analysis of the linker failure was carried out by Nick Clifton.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Stefan Liebler <stli@linux.ibm.com>
(cherry picked from commit 98966749f2)
This commit is contained in:
Florian Weimer 2021-11-10 15:21:37 +01:00
parent cf8c6a634c
commit a4f3bc2346
2 changed files with 2 additions and 2 deletions

View File

@ -41,7 +41,7 @@ ENTRY(MEMMEM_ARCH13)
# error The arch13 variant of memmem needs the z13 variant of memmem!
# endif
clgfi %r5,9
jh MEMMEM_Z13
jgh MEMMEM_Z13
aghik %r0,%r5,-1 /* vll needs highest index. */
bc 4,0(%r14) /* cc==1: return if needle-len == 0. */

View File

@ -49,7 +49,7 @@ ENTRY(STRSTR_ARCH13)
# error The arch13 variant of strstr needs the z13 variant of strstr!
# endif
clgfi %r4,9
jh STRSTR_Z13
jgh STRSTR_Z13
/* In case of a partial match, the vstrs instruction returns the index
of the partial match in a vector-register. Then we have to