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um: link .lbss/.ldata/.lrodata correctly

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clang 23 for me seems to put a bunch of data into these
"large" sections, causing said data to not be considered
kernel data by the kernel, in turn causing all kinds of
strange bugs. Link the data from these sections in the
right place rather than leaving them separate.

Link: https://patch.msgid.link/20260923173523.3675aee4f2fc.Id8b553b971d1428abb1bd1222016758314af3098@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2026-09-23 17:34:30 +02:00
parent 109cf3ac39
commit 779c65ede6
3 changed files with 6 additions and 0 deletions
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2
arch/um/include/asm/common.lds.S
View File

@ -11,6 +11,8 @@
RO_DATA(4096)
.lrodata : { *(.lrodata .lrodata.[0-9a-zA-Z_]* .lrodata..L*) }
.unprotected : { *(.unprotected) }
. = ALIGN(4096);
PROVIDE (_unprotected_end = .);

2
arch/um/kernel/dyn.lds.S
View File

@ -117,6 +117,7 @@ SECTIONS
.data : {
INIT_TASK_DATA(KERNEL_STACK_SIZE)
DATA_DATA
*(.ldata .ldata.[0-9a-zA-Z_]* .ldata..L*)
*(.data.* .gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
}
@ -159,6 +160,7 @@ SECTIONS
__bss_start = .;
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(.lbss .lbss.[0-9a-zA-Z_]* .lbss..L*)
*(COMMON)
/* Align here to ensure that the .bss section occupies space up to
_end. Align after .bss to ensure correct alignment even if the

2
arch/um/kernel/uml.lds.S
View File

@ -78,6 +78,7 @@ SECTIONS
{
INIT_TASK_DATA(KERNEL_STACK_SIZE)
DATA_DATA
*(.ldata .ldata.[0-9a-zA-Z_]* .ldata..L*)
*(.gnu.linkonce.d*)
CONSTRUCTORS
}
@ -107,6 +108,7 @@ SECTIONS
PROVIDE(_bss_start = .);
SBSS(0)
BSS(0)
*(.lbss .lbss.[0-9a-zA-Z_]* .lbss..L*)
__bss_stop = .;
_end = .;
PROVIDE (end = .);