[PATCH] module.lds.S: Fix modules on 32-bit parisc architecture

[PATCH] module.lds.S: Fix modules on 32-bit parisc architecture

[Helge Deller]

On the 32-bit parisc architecture, we always used the
-ffunction-sections compiler option to tell the compiler to put the
functions into seperate text sections. This is necessary, otherwise
"big" kernel modules like ext4 or ipv6 fail to load because some
branches won't be able to reach their stubs.

Commit 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related
macros") broke this for parisc because all text sections will get
unconditionally merged now.

Fix the issue by avoiding the text section merge for 32-bit parisc while still
allowing it for all other architectures.

Fixes: 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related macros")
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: stable@vger.kernel.org # v6.19+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/scripts/module.lds.S b/scripts/module.lds.S
index 054ef99e8288..41e13e9cbb9d 100644
--- a/scripts/module.lds.S
+++ b/scripts/module.lds.S
@@ -41,9 +41,11 @@ SECTIONS {
 	__kcfi_traps		: { KEEP(*(.kcfi_traps)) }
 #endif
 
+#if !defined(CONFIG_PARISC) || defined(CONFIG_64BIT)
 	.text : {
 		*(.text .text.[0-9a-zA-Z_]*)
 	}
+#endif
 
 	.bss : {
 		*(.bss .bss.[0-9a-zA-Z_]*)

Re: [PATCH] module.lds.S: Fix modules on 32-bit parisc architecture

[Sami Tolvanen]

Hi Helge,

On Sat, Apr 4, 2026 at 1:04 PM Helge Deller <deller@kernel.org> wrote:
>
> On the 32-bit parisc architecture, we always used the
> -ffunction-sections compiler option to tell the compiler to put the
> functions into seperate text sections. This is necessary, otherwise
> "big" kernel modules like ext4 or ipv6 fail to load because some
> branches won't be able to reach their stubs.
>
> Commit 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related
> macros") broke this for parisc because all text sections will get
> unconditionally merged now.
>
> Fix the issue by avoiding the text section merge for 32-bit parisc while still
> allowing it for all other architectures.
>
> Fixes: 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related macros")
> Cc: Josh Poimboeuf <jpoimboe@kernel.org>
> Cc: stable@vger.kernel.org # v6.19+
> Signed-off-by: Helge Deller <deller@gmx.de>
>
> diff --git a/scripts/module.lds.S b/scripts/module.lds.S
> index 054ef99e8288..41e13e9cbb9d 100644
> --- a/scripts/module.lds.S
> +++ b/scripts/module.lds.S
> @@ -41,9 +41,11 @@ SECTIONS {
>         __kcfi_traps            : { KEEP(*(.kcfi_traps)) }
>  #endif
>
> +#if !defined(CONFIG_PARISC) || defined(CONFIG_64BIT)

Instead of adding parisc-specific policies to the main module linker
script, could we add a separate config flag for this and have parisc
select that in its own Kconfig for !64BIT? Perhaps something like
ARCH_WANTS_MODULE_TEXT_SECTIONS?

Sami

Re: [PATCH] module.lds.S: Fix modules on 32-bit parisc architecture

[Helge Deller]

On 4/7/26 18:26, Sami Tolvanen wrote:
> Hi Helge,
> 
> On Sat, Apr 4, 2026 at 1:04 PM Helge Deller <deller@kernel.org> wrote:
>>
>> On the 32-bit parisc architecture, we always used the
>> -ffunction-sections compiler option to tell the compiler to put the
>> functions into seperate text sections. This is necessary, otherwise
>> "big" kernel modules like ext4 or ipv6 fail to load because some
>> branches won't be able to reach their stubs.
>>
>> Commit 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related
>> macros") broke this for parisc because all text sections will get
>> unconditionally merged now.
>>
>> Fix the issue by avoiding the text section merge for 32-bit parisc while still
>> allowing it for all other architectures.
>>
>> Fixes: 1ba9f8979426 ("vmlinux.lds: Unify TEXT_MAIN, DATA_MAIN, and related macros")
>> Cc: Josh Poimboeuf <jpoimboe@kernel.org>
>> Cc: stable@vger.kernel.org # v6.19+
>> Signed-off-by: Helge Deller <deller@gmx.de>
>>
>> diff --git a/scripts/module.lds.S b/scripts/module.lds.S
>> index 054ef99e8288..41e13e9cbb9d 100644
>> --- a/scripts/module.lds.S
>> +++ b/scripts/module.lds.S
>> @@ -41,9 +41,11 @@ SECTIONS {
>>          __kcfi_traps            : { KEEP(*(.kcfi_traps)) }
>>   #endif
>>
>> +#if !defined(CONFIG_PARISC) || defined(CONFIG_64BIT)
> 
> Instead of adding parisc-specific policies to the main module linker
> script, could we add a separate config flag for this and have parisc
> select that in its own Kconfig for !64BIT? Perhaps something like
> ARCH_WANTS_MODULE_TEXT_SECTIONS?

Yes, good idea!
I will send a v2 patch.

Helge