| Message ID | 20200110123240.51722-1-vincenzo.frascino@arm.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | bc420c6ceefbb86cbbc8c00061bd779c17fa6997 |
| Headers | show |
| Series | arm: Disable kmemleak on XIP kernels | expand |
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index bc99582bdc85..99a3e14e62bd 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -73,7 +73,7 @@ config ARM select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32 select HAVE_CONTEXT_TRACKING select HAVE_C_RECORDMCOUNT - select HAVE_DEBUG_KMEMLEAK + select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL select HAVE_DMA_CONTIGUOUS if MMU select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
Kmemleak relies on specific symbols to register the read only data during init (e.g. __start_ro_after_init). Trying to build an XIP kernel on arm results in the linking error reported below because when this option is selected read only data after init are not allowed since .data is read only (.rodata). arm-linux-gnueabihf-ld: mm/kmemleak.o: in function `kmemleak_init': kmemleak.c:(.init.text+0x148): undefined reference to `__end_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x14c): undefined reference to `__end_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x150): undefined reference to `__start_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x156): undefined reference to `__start_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x162): undefined reference to `__start_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x16a): undefined reference to `__start_ro_after_init' linux/Makefile:1078: recipe for target 'vmlinux' failed Fix the issue enabling kmemleak only on non XIP kernels. Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> --- arch/arm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)