linux/arch/parisc
Helge Deller aa78fa905b parisc: Fix vDSO signal breakage on 32-bit kernel
Addition of vDSO support for parisc in kernel v5.18 suddenly broke glibc
signal testcases on a 32-bit kernel.

The trampoline code (sigtramp.S) which is mapped into userspace includes
an offset to the context data on the stack, which is used by gdb and
glibc to get access to registers.

In a 32-bit kernel we used by mistake the offset into the compat context
(which is valid on a 64-bit kernel only) instead of the offset into the
"native" 32-bit context.

Reported-by: John David Anglin <dave.anglin@bell.net>
Tested-by: John David Anglin <dave.anglin@bell.net>
Fixes: 	df24e1783e ("parisc: Add vDSO support")
CC: stable@vger.kernel.org # 5.18
Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-02 18:36:58 +02:00
..
boot Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
configs parisc: Update 32- and 64-bit defconfigs 2022-05-08 20:01:11 +02:00
include parisc/stifb: Fix fb_is_primary_device() only available with CONFIG_FB_STI 2022-06-07 13:01:17 +02:00
kernel parisc: Fix vDSO signal breakage on 32-bit kernel 2022-07-02 18:36:58 +02:00
lib parisc: Use constants to encode the space registers like SR_KERNEL 2022-03-11 19:49:31 +01:00
math-emu parisc: align '*' in comment in math-emu code 2022-06-26 00:19:27 +02:00
mm parisc: Prevent ldil() to sign-extend into upper 32 bits 2022-05-23 13:44:24 +02:00
defpalo.conf parisc: switch to gzip-compressed vmlinuz kernel 2013-07-09 22:09:20 +02:00
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig parisc: Enable ARCH_HAS_STRICT_MODULE_RWX 2022-06-26 12:23:15 +02:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile parisc: remove arch/parisc/nm 2022-05-29 18:39:35 +09:00