diff options
| -rw-r--r-- | target/linux/brcm63xx/patches-4.14/150-MIPS-bmips-mark-exception-vectors-as-char-arrays.patch | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-4.14/150-MIPS-bmips-mark-exception-vectors-as-char-arrays.patch b/target/linux/brcm63xx/patches-4.14/150-MIPS-bmips-mark-exception-vectors-as-char-arrays.patch new file mode 100644 index 0000000000..11d79ea21c --- /dev/null +++ b/target/linux/brcm63xx/patches-4.14/150-MIPS-bmips-mark-exception-vectors-as-char-arrays.patch @@ -0,0 +1,93 @@ +From badf0fc9f7dc72d06a47357123c7d97dc45792f5 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jonas.gorski@gmail.com> +Date: Tue, 15 Oct 2019 23:27:10 +0200 +Subject: [PATCH v2] MIPS: bmips: mark exception vectors as char arrays + +The vectors span more than one byte, so mark them as arrays. + +Fixes the following build error when building when using GCC 8.3: + +In file included from ./include/linux/string.h:19, + from ./include/linux/bitmap.h:9, + from ./include/linux/cpumask.h:12, + from ./arch/mips/include/asm/processor.h:15, + from ./arch/mips/include/asm/thread_info.h:16, + from ./include/linux/thread_info.h:38, + from ./include/asm-generic/preempt.h:5, + from ./arch/mips/include/generated/asm/preempt.h:1, + from ./include/linux/preempt.h:81, + from ./include/linux/spinlock.h:51, + from ./include/linux/mmzone.h:8, + from ./include/linux/bootmem.h:8, + from arch/mips/bcm63xx/prom.c:10: +arch/mips/bcm63xx/prom.c: In function 'prom_init': +./arch/mips/include/asm/string.h:162:11: error: '__builtin_memcpy' forming offset [2, 32] is out of the bounds [0, 1] of object 'bmips_smp_movevec' with type 'char' [-Werror=array-bounds] + __ret = __builtin_memcpy((dst), (src), __len); \ + ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +arch/mips/bcm63xx/prom.c:97:3: note: in expansion of macro 'memcpy' + memcpy((void *)0xa0000200, &bmips_smp_movevec, 0x20); + ^~~~~~ +In file included from arch/mips/bcm63xx/prom.c:14: +./arch/mips/include/asm/bmips.h:80:13: note: 'bmips_smp_movevec' declared here + extern char bmips_smp_movevec; + +Fixes: 18a1eef92dcd ("MIPS: BMIPS: Introduce bmips.h") +Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> +--- + +v1 -> v2: + * Actually update the callers as well, to not break the build in a + different way. + + arch/mips/bcm63xx/prom.c | 2 +- + arch/mips/include/asm/bmips.h | 10 +++++----- + arch/mips/kernel/smp-bmips.c | 8 ++++---- + 3 files changed, 10 insertions(+), 10 deletions(-) + +--- a/arch/mips/bcm63xx/prom.c ++++ b/arch/mips/bcm63xx/prom.c +@@ -84,7 +84,7 @@ void __init prom_init(void) + * Here we will start up CPU1 in the background and ask it to + * reconfigure itself then go back to sleep. + */ +- memcpy((void *)0xa0000200, &bmips_smp_movevec, 0x20); ++ memcpy((void *)0xa0000200, bmips_smp_movevec, 0x20); + __sync(); + set_c0_cause(C_SW0); + cpumask_set_cpu(1, &bmips_booted_mask); +--- a/arch/mips/include/asm/bmips.h ++++ b/arch/mips/include/asm/bmips.h +@@ -75,11 +75,11 @@ static inline int register_bmips_smp_ops + #endif + } + +-extern char bmips_reset_nmi_vec; +-extern char bmips_reset_nmi_vec_end; +-extern char bmips_smp_movevec; +-extern char bmips_smp_int_vec; +-extern char bmips_smp_int_vec_end; ++extern char bmips_reset_nmi_vec[]; ++extern char bmips_reset_nmi_vec_end[]; ++extern char bmips_smp_movevec[]; ++extern char bmips_smp_int_vec[]; ++extern char bmips_smp_int_vec_end[]; + + extern int bmips_smp_enabled; + extern int bmips_cpu_offset; +--- a/arch/mips/kernel/smp-bmips.c ++++ b/arch/mips/kernel/smp-bmips.c +@@ -457,10 +457,10 @@ static void bmips_wr_vec(unsigned long d + + static inline void bmips_nmi_handler_setup(void) + { +- bmips_wr_vec(BMIPS_NMI_RESET_VEC, &bmips_reset_nmi_vec, +- &bmips_reset_nmi_vec_end); +- bmips_wr_vec(BMIPS_WARM_RESTART_VEC, &bmips_smp_int_vec, +- &bmips_smp_int_vec_end); ++ bmips_wr_vec(BMIPS_NMI_RESET_VEC, bmips_reset_nmi_vec, ++ bmips_reset_nmi_vec_end); ++ bmips_wr_vec(BMIPS_WARM_RESTART_VEC, bmips_smp_int_vec, ++ bmips_smp_int_vec_end); + } + + struct reset_vec_info { |