Files
s390-tools/zipl/boot/entry.S
Marc Hartmayer 3d168fac14 zipl/boot: declare that no executable stack is required
Normally, `gcc` takes care of adding the `GNU_STACK` marking except for
assembly code. Therefore, let's add the marking manually. Discard the
`.note.GNU-stack` section in the linker script since it's just a
"message" from the compiler to the linker. This fixes the linker
warning:

ld: warning: entry.o: missing .note.GNU-stack section implies executable stack

Acked-by: Eduard Shishkin <edward6@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>
2023-02-13 22:18:49 +01:00

26 lines
708 B
ArmAsm

/*
* Entry module for stage 2 stand-alone dump tools
*
* Copyright IBM Corp. 2001, 2017
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#define __LC_SAVE_AREA_SYNC 0x200 /* Save area for interrupts */
#define __LC_PGM_OLD_PSW 0x0150 /* Program check old PSW */
.globl pgm_check_handler
pgm_check_handler:
stmg %r0,%r15,__LC_SAVE_AREA_SYNC
aghi %r15,-200
larl %r14,pgm_check_handler_fn
basr %r14,%r14
lmg %r0,%r15,__LC_SAVE_AREA_SYNC
lpswe __LC_PGM_OLD_PSW(%r0)
/* The code doesn't require an executable stack */
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif