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Prashant Bhole d1b7725dfe tools/bpftool: show btf_id in map listing
Let's print btf id of map similar to the way we are printing it
for programs.

Sample output:
user@test# bpftool map -f
61: lpm_trie  flags 0x1
	key 20B  value 8B  max_entries 1  memlock 4096B
133: array  name test_btf_id  flags 0x0
	key 4B  value 4B  max_entries 4  memlock 4096B
	pinned /sys/fs/bpf/test100
	btf_id 174
170: array  name test_btf_id  flags 0x0
	key 4B  value 4B  max_entries 4  memlock 4096B
	btf_id 240

Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-04-16 19:48:26 -07:00
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tools tools/bpftool: show btf_id in map listing 2019-04-16 19:48:26 -07:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.