2 Commits

Author	SHA1	Message	Date
Thomas Huth	f569849e57	zipl/boot: Fix EBCDIC code page 500 conversion and decrease size by 200 bytes ... The tables ebcdic_037 and ebcdic_500 are currently exactly the same, though the 500 should differ at 7 entries (see the tables in the Linux kernel or https://www.ibm.com/docs/en/db2-for-zos/12.0.0?topic=ebcdic-code-point-differences-between-ccsids for example). Fix it by removing the ebcdic_500 table and by patching the other table during start() if necessary. That way we can safe also about 200 bytes in the stage3.bin binary. Fixes: https://github.com/ibm-s390-linux/s390-tools/issues/125 Closes: https://github.com/ibm-s390-linux/s390-tools/pull/190 Suggested-by: Euan Bourke <euan@linux.ibm.com> Tested-by: Euan Bourke <euan@linux.ibm.com> Reviewed-by: Euan Bourke <euan@linux.ibm.com> Acked-by: Steffen Eiden <seiden@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>	2025-09-15 11:47:33 +02:00
Marc Hartmayer	a37170b8be	zipl: refactor all EBCDIC code into separate files ... This allows the reuse of the code later in sclp.c. While at it, also declare @source parameter of `ebcdic_to_ascii` function as `const` and rename all `ebc_` function name prefixes into `ebcdic_`. Move conversion tables to separate file so it only gets linked into loaders that need it. Reviewed-by: Philipp Rudo <prudo@linux.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>	2020-03-16 13:39:10 +01:00