[DTrace-devel] [PATCH 04/20] Increase the instruction counter to 4 digits for BPF programs

[Kris Van Hees]

BPF programs are becoming longer as more features are implemented, and
we are now routinely encountering progrmas that are 1000 or more
instructions.  The disassembler listings were limited to 3 digits for
the instruction counter and 4 for the offset.  This is now increased
to 4 digits for the counter and 5 for the offset.

Signed-off-by: Kris Van Hees <kris.van.hees at oracle.com>
---
 libdtrace/dt_dis.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libdtrace/dt_dis.c b/libdtrace/dt_dis.c
index fdd10dc3..8094e40d 100644
--- a/libdtrace/dt_dis.c
+++ b/libdtrace/dt_dis.c
@@ -30,7 +30,7 @@ static const char * const helper_fn[] = {
 static void
 dt_dis_prefix(uint_t i, const struct bpf_insn *instr, FILE *fp)
 {
-	fprintf(fp, "%03u %04u: %02hhx %01hhx %01hhx %04hx %08x    ",
+	fprintf(fp, "%04u %05u: %02hhx %01hhx %01hhx %04hx %08x    ",
 		i, i*8, instr->code, instr->dst_reg, instr->src_reg,
 		instr->off, instr->imm);
 }
@@ -669,7 +669,7 @@ dt_dis_difo(const dtrace_difo_t *dp, FILE *fp, const dt_ident_t *idp,
 	else
 		fprintf(fp, "\nDisassembly of %s:\n", ltype);
 
-	fprintf(fp, "%-3s %-5s %-20s    %s\n",
+	fprintf(fp, "%-4s %-5s  %-20s    %s\n",
 	    "INS", "OFF", "OPCODE", "INSTRUCTION");
 
 	for (i = 0; i < dp->dtdo_len; i++) {
-- 
2.31.1