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| author | Jordan Niethe <jniethe5@gmail.com> | 2020-05-06 13:40:23 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-19 00:10:36 +1000 |
| commit | 4eff2b4f32a309e2171bfe53db3e93b5614f77cb (patch) | |
| tree | cf82cb41ec421b1761315a1b903948219e0e894a /arch/powerpc/xmon/xmon.c | |
| parent | 51c9ba11f17f25ace1ea6bbfd4586c59105432de (diff) | |
| download | linux-next-4eff2b4f32a309e2171bfe53db3e93b5614f77cb.tar.gz | |
powerpc/xmon: Move breakpoints to text section
The instructions for xmon's breakpoint are stored bpt_table[] which is in
the data section. This is problematic as the data section may be marked
as no execute. Move bpt_table[] to the text section.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-4-jniethe5@gmail.com
Diffstat (limited to 'arch/powerpc/xmon/xmon.c')
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index afb28ad660a7..948d025f2939 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -62,6 +62,7 @@ #include "nonstdio.h" #include "dis-asm.h" +#include "xmon_bpts.h" #ifdef CONFIG_SMP static cpumask_t cpus_in_xmon = CPU_MASK_NONE; @@ -109,7 +110,6 @@ struct bpt { #define BP_TRAP 2 #define BP_DABR 4 -#define NBPTS 256 static struct bpt bpts[NBPTS]; static struct bpt dabr; static struct bpt *iabr; @@ -117,10 +117,6 @@ static unsigned bpinstr = 0x7fe00008; /* trap */ #define BP_NUM(bp) ((bp) - bpts + 1) -#define BPT_SIZE (sizeof(unsigned int) * 2) -#define BPT_WORDS (BPT_SIZE / sizeof(unsigned int)) -static unsigned int bpt_table[NBPTS * BPT_WORDS]; - /* Prototypes */ static int cmds(struct pt_regs *); static int mread(unsigned long, void *, int); |