diff mbox series

linker_lists: set LINKER_LIST_ALIGN to 8 for CPU_MIPS64

Message ID 20241003142030.1610222-1-jerome.forissier@linaro.org
State Superseded
Headers show
Series linker_lists: set LINKER_LIST_ALIGN to 8 for CPU_MIPS64 | expand

Commit Message

Jerome Forissier Oct. 3, 2024, 2:20 p.m. UTC
CPU_MIPS64 needs 8-byte alignment on the linker lists, otherwise an
exception may occur. Fixes an issue found on malta64 with QEMU:

 Breakpoint 1, lists_driver_lookup_name (name=0xffffffffbe043578 "root_driver") at /home/uboot/u-boot/drivers/core/lists.c:31
 31                      if (!strcmp(name, entry->name))
 [...]
 ld      a1,0(s0)

 (gdb) p/x &entry->name
 0xffffffffbe04b0d4
 (gdb) p/x $s0
 0xffffffffbe04b0d4

 $ grep __u_boot_list /tmp/malta64/u-boot.objdump
 4 __u_boot_list 000018e0  ffffffffbe04a4d4  ffffffffbe04a4d4  0004a584  2**2

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
---
 arch/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Simon Glass Oct. 3, 2024, 8:45 p.m. UTC | #1
On Thu, 3 Oct 2024 at 08:20, Jerome Forissier
<jerome.forissier@linaro.org> wrote:
>
> CPU_MIPS64 needs 8-byte alignment on the linker lists, otherwise an
> exception may occur. Fixes an issue found on malta64 with QEMU:
>
>  Breakpoint 1, lists_driver_lookup_name (name=0xffffffffbe043578 "root_driver") at /home/uboot/u-boot/drivers/core/lists.c:31
>  31                      if (!strcmp(name, entry->name))
>  [...]
>  ld      a1,0(s0)
>
>  (gdb) p/x &entry->name
>  0xffffffffbe04b0d4
>  (gdb) p/x $s0
>  0xffffffffbe04b0d4
>
>  $ grep __u_boot_list /tmp/malta64/u-boot.objdump
>  4 __u_boot_list 000018e0  ffffffffbe04a4d4  ffffffffbe04a4d4  0004a584  2**2
>
> Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
> ---
>  arch/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>

Reviewed-by: Simon Glass <sjg@chromium.org>
Ilias Apalodimas Oct. 4, 2024, 5:58 a.m. UTC | #2
On Thu, 3 Oct 2024 at 23:46, Simon Glass <sjg@chromium.org> wrote:
>
> On Thu, 3 Oct 2024 at 08:20, Jerome Forissier
> <jerome.forissier@linaro.org> wrote:
> >
> > CPU_MIPS64 needs 8-byte alignment on the linker lists, otherwise an
> > exception may occur. Fixes an issue found on malta64 with QEMU:
> >
> >  Breakpoint 1, lists_driver_lookup_name (name=0xffffffffbe043578 "root_driver") at /home/uboot/u-boot/drivers/core/lists.c:31
> >  31                      if (!strcmp(name, entry->name))
> >  [...]
> >  ld      a1,0(s0)
> >
> >  (gdb) p/x &entry->name
> >  0xffffffffbe04b0d4
> >  (gdb) p/x $s0
> >  0xffffffffbe04b0d4
> >
> >  $ grep __u_boot_list /tmp/malta64/u-boot.objdump
> >  4 __u_boot_list 000018e0  ffffffffbe04a4d4  ffffffffbe04a4d4  0004a584  2**2
> >
> > Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
> > ---
> >  arch/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
>
> Reviewed-by: Simon Glass <sjg@chromium.org>

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff mbox series

Patch

diff --git a/arch/Kconfig b/arch/Kconfig
index 8f1f4667012..8f4df849801 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -45,7 +45,7 @@  config SYS_CACHELINE_SIZE
 config LINKER_LIST_ALIGN
 	int
 	default 32 if SANDBOX
-	default 8 if ARM64 || X86
+	default 8 if ARM64 || X86 || CPU_MIPS64
 	default 4
 	help
 	  Force the each linker list to be aligned to this boundary. This