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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2012-07-31 16:23:59 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-09-26 15:44:49 +0200
commitc10302efe569bfd646b4c22df29577a4595b4580 (patch)
treefbfba0e5a1cab17411f6d2084477abbdd9e9e547 /arch/s390/kernel/dis.c
parent6f0f9b6b3fcfe5e156f20d4f804f0d505c750b3c (diff)
downloadop-kernel-dev-c10302efe569bfd646b4c22df29577a4595b4580.zip
op-kernel-dev-c10302efe569bfd646b4c22df29577a4595b4580.tar.gz
s390/bpf,jit: BPF Just In Time compiler for s390
The s390 implementation of the JIT compiler for packet filter speedup. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/dis.c')
-rw-r--r--arch/s390/kernel/dis.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 619c5d3..84fd7e9 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -1601,3 +1601,26 @@ void show_code(struct pt_regs *regs)
}
printk("\n");
}
+
+void print_fn_code(unsigned char *code, unsigned long len)
+{
+ char buffer[64], *ptr;
+ int opsize, i;
+
+ while (len) {
+ ptr = buffer;
+ opsize = insn_length(*code);
+ ptr += sprintf(ptr, "%p: ", code);
+ for (i = 0; i < opsize; i++)
+ ptr += sprintf(ptr, "%02x", code[i]);
+ *ptr++ = '\t';
+ if (i < 4)
+ *ptr++ = '\t';
+ ptr += print_insn(ptr, code, (unsigned long) code);
+ *ptr++ = '\n';
+ *ptr++ = 0;
+ printk(buffer);
+ code += opsize;
+ len -= opsize;
+ }
+}
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