This is a note to let you know that I've just added the patch titled
linux/export: fix reference to exported functions for parisc64
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
linux-export-fix-reference-to-exported-functions-for-parisc64.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 08700ec705043eb0cee01b35cf5b9d63f0230d12 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Date: Wed, 6 Sep 2023 03:46:57 +0900
Subject: linux/export: fix reference to exported functions for parisc64
From: Masahiro Yamada <masahiroy@xxxxxxxxxx>
commit 08700ec705043eb0cee01b35cf5b9d63f0230d12 upstream.
John David Anglin reported parisc has been broken since commit
ddb5cdbafaaa ("kbuild: generate KSYMTAB entries by modpost").
Like ia64, parisc64 uses a function descriptor. The function
references must be prefixed with P%.
Also, symbols prefixed $$ from the library have the symbol type
STT_LOPROC instead of STT_FUNC. They should be handled as functions
too.
Fixes: ddb5cdbafaaa ("kbuild: generate KSYMTAB entries by modpost")
Reported-by: John David Anglin <dave.anglin@xxxxxxxx>
Tested-by: John David Anglin <dave.anglin@xxxxxxxx>
Tested-by: Helge Deller <deller@xxxxxx>
Closes: https://lore.kernel.org/linux-parisc/1901598a-e11d-f7dd-a5d9-9a69d06e6b6e@xxxxxxxx/T/#u
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/export-internal.h | 2 ++
scripts/mod/modpost.c | 9 +++++++++
2 files changed, 11 insertions(+)
--- a/include/linux/export-internal.h
+++ b/include/linux/export-internal.h
@@ -52,6 +52,8 @@
#ifdef CONFIG_IA64
#define KSYM_FUNC(name) @fptr(name)
+#elif defined(CONFIG_PARISC) && defined(CONFIG_64BIT)
+#define KSYM_FUNC(name) P%name
#else
#define KSYM_FUNC(name) name
#endif
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1226,6 +1226,15 @@ static void check_export_symbol(struct m
*/
s->is_func = (ELF_ST_TYPE(sym->st_info) == STT_FUNC);
+ /*
+ * For parisc64, symbols prefixed $$ from the library have the symbol type
+ * STT_LOPROC. They should be handled as functions too.
+ */
+ if (elf->hdr->e_ident[EI_CLASS] == ELFCLASS64 &&
+ elf->hdr->e_machine == EM_PARISC &&
+ ELF_ST_TYPE(sym->st_info) == STT_LOPROC)
+ s->is_func = true;
+
if (match(secname, PATTERNS(INIT_SECTIONS)))
warn("%s: %s: EXPORT_SYMBOL used for init symbol. Remove __init or EXPORT_SYMBOL.\n",
mod->name, name);
Patches currently in stable-queue which might be from masahiroy@xxxxxxxxxx are
queue-6.5/linux-export-fix-reference-to-exported-functions-for-parisc64.patch
queue-6.5/kbuild-do-not-run-depmod-for-make-modules_sign.patch
queue-6.5/kbuild-rpm-pkg-define-_arch-conditionally.patch
queue-6.5/kbuild-dummy-tools-make-mprofile_kernel-checks-work-.patch
queue-6.5/kconfig-fix-possible-buffer-overflow.patch
