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tools: bpftool: use 4 context mode for the NFP disasm

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The nfp driver is currently always JITing the BPF for 4 context/thread
mode of the NFP flow processors.  Tell this to the disassembler,
otherwise some registers may be incorrectly decoded.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2018-10-18 11:34:55 -07:00 • committed by Daniel Borkmann
parent 1bd70d2eba
commit 3ddeac6705
4 changed files with 20 additions and 9 deletions
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14
tools/bpf/bpftool/prog.c
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@ -449,6 +449,7 @@ static int do_dump(int argc, char **argv)
unsigned long *func_ksyms = NULL;
struct bpf_prog_info info = {};
unsigned int *func_lens = NULL;
const char *disasm_opt = NULL;
unsigned int nr_func_ksyms;
unsigned int nr_func_lens;
struct dump_data dd = {};
@ -607,9 +608,10 @@ static int do_dump(int argc, char **argv)
const char *name = NULL;
if (info.ifindex) {
name = ifindex_to_bfd_name_ns(info.ifindex,
info.netns_dev,
info.netns_ino);
name = ifindex_to_bfd_params(info.ifindex,
info.netns_dev,
info.netns_ino,
&disasm_opt);
if (!name)
goto err_free;
}
@ -651,7 +653,8 @@ static int do_dump(int argc, char **argv)
printf("%s:\n", sym_name);
}
disasm_print_insn(img, lens[i], opcodes, name);
disasm_print_insn(img, lens[i], opcodes, name,
disasm_opt);
img += lens[i];
if (json_output)
@ -663,7 +666,8 @@ static int do_dump(int argc, char **argv)
if (json_output)
jsonw_end_array(json_wtr);
} else {
disasm_print_insn(buf, *member_len, opcodes, name);
disasm_print_insn(buf, *member_len, opcodes, name,
disasm_opt);
}
} else if (visual) {
if (json_output)