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authorLinus Torvalds <torvalds@linux-foundation.org>2019-11-25 20:02:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-11-25 20:02:57 -0800
commit386403a115f95997c2715691226e11a7b5cffcfd (patch)
treea685df70bd3d5b295683713818ddf0752c3d75b6 /tools/lib/bpf/btf_dump.c
parent642356cb5f4a8c82b5ca5ebac288c327d10df236 (diff)
parent622dc5ad8052f4f0c6b7a12787696a5caa3c6a58 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller: "Another merge window, another pull full of stuff: 1) Support alternative names for network devices, from Jiri Pirko. 2) Introduce per-netns netdev notifiers, also from Jiri Pirko. 3) Support MSG_PEEK in vsock/virtio, from Matias Ezequiel Vara Larsen. 4) Allow compiling out the TLS TOE code, from Jakub Kicinski. 5) Add several new tracepoints to the kTLS code, also from Jakub. 6) Support set channels ethtool callback in ena driver, from Sameeh Jubran. 7) New SCTP events SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED, SCTP_ADDR_MADE_PRIM, and SCTP_SEND_FAILED_EVENT. From Xin Long. 8) Add XDP support to mvneta driver, from Lorenzo Bianconi. 9) Lots of netfilter hw offload fixes, cleanups and enhancements, from Pablo Neira Ayuso. 10) PTP support for aquantia chips, from Egor Pomozov. 11) Add UDP segmentation offload support to igb, ixgbe, and i40e. From Josh Hunt. 12) Add smart nagle to tipc, from Jon Maloy. 13) Support L2 field rewrite by TC offloads in bnxt_en, from Venkat Duvvuru. 14) Add a flow mask cache to OVS, from Tonghao Zhang. 15) Add XDP support to ice driver, from Maciej Fijalkowski. 16) Add AF_XDP support to ice driver, from Krzysztof Kazimierczak. 17) Support UDP GSO offload in atlantic driver, from Igor Russkikh. 18) Support it in stmmac driver too, from Jose Abreu. 19) Support TIPC encryption and auth, from Tuong Lien. 20) Introduce BPF trampolines, from Alexei Starovoitov. 21) Make page_pool API more numa friendly, from Saeed Mahameed. 22) Introduce route hints to ipv4 and ipv6, from Paolo Abeni. 23) Add UDP segmentation offload to cxgb4, Rahul Lakkireddy" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1857 commits) libbpf: Fix usage of u32 in userspace code mm: Implement no-MMU variant of vmalloc_user_node_flags slip: Fix use-after-free Read in slip_open net: dsa: sja1105: fix sja1105_parse_rgmii_delays() macvlan: schedule bc_work even if error enetc: add support Credit Based Shaper(CBS) for hardware offload net: phy: add helpers phy_(un)lock_mdio_bus mdio_bus: don't use managed reset-controller ax88179_178a: add ethtool_op_get_ts_info() mlxsw: spectrum_router: Fix use of uninitialized adjacency index mlxsw: spectrum_router: After underlay moves, demote conflicting tunnels bpf: Simplify __bpf_arch_text_poke poke type handling bpf: Introduce BPF_TRACE_x helper for the tracing tests bpf: Add bpf_jit_blinding_enabled for !CONFIG_BPF_JIT bpf, testing: Add various tail call test cases bpf, x86: Emit patchable direct jump as tail call bpf: Constant map key tracking for prog array pokes bpf: Add poke dependency tracking for prog array maps bpf: Add initial poke descriptor table for jit images bpf: Move owner type, jited info into array auxiliary data ...
Diffstat (limited to 'tools/lib/bpf/btf_dump.c')
-rw-r--r--tools/lib/bpf/btf_dump.c37
1 files changed, 27 insertions, 10 deletions
diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c
index ede55fec3618..cb126d8fcf75 100644
--- a/tools/lib/bpf/btf_dump.c
+++ b/tools/lib/bpf/btf_dump.c
@@ -428,7 +428,7 @@ static int btf_dump_order_type(struct btf_dump *d, __u32 id, bool through_ptr)
/* type loop, but resolvable through fwd declaration */
if (btf_is_composite(t) && through_ptr && t->name_off != 0)
return 0;
- pr_warning("unsatisfiable type cycle, id:[%u]\n", id);
+ pr_warn("unsatisfiable type cycle, id:[%u]\n", id);
return -ELOOP;
}
@@ -636,8 +636,8 @@ static void btf_dump_emit_type(struct btf_dump *d, __u32 id, __u32 cont_id)
if (id == cont_id)
return;
if (t->name_off == 0) {
- pr_warning("anonymous struct/union loop, id:[%u]\n",
- id);
+ pr_warn("anonymous struct/union loop, id:[%u]\n",
+ id);
return;
}
btf_dump_emit_struct_fwd(d, id, t);
@@ -782,7 +782,7 @@ static int btf_align_of(const struct btf *btf, __u32 id)
return align;
}
default:
- pr_warning("unsupported BTF_KIND:%u\n", btf_kind(t));
+ pr_warn("unsupported BTF_KIND:%u\n", btf_kind(t));
return 1;
}
}
@@ -876,7 +876,6 @@ static void btf_dump_emit_struct_def(struct btf_dump *d,
__u16 vlen = btf_vlen(t);
packed = is_struct ? btf_is_struct_packed(d->btf, id, t) : 0;
- align = packed ? 1 : btf_align_of(d->btf, id);
btf_dump_printf(d, "%s%s%s {",
is_struct ? "struct" : "union",
@@ -906,6 +905,13 @@ static void btf_dump_emit_struct_def(struct btf_dump *d,
btf_dump_printf(d, ";");
}
+ /* pad at the end, if necessary */
+ if (is_struct) {
+ align = packed ? 1 : btf_align_of(d->btf, id);
+ btf_dump_emit_bit_padding(d, off, t->size * 8, 0, align,
+ lvl + 1);
+ }
+
if (vlen)
btf_dump_printf(d, "\n");
btf_dump_printf(d, "%s}", pfx(lvl));
@@ -969,6 +975,17 @@ static void btf_dump_emit_typedef_def(struct btf_dump *d, __u32 id,
{
const char *name = btf_dump_ident_name(d, id);
+ /*
+ * Old GCC versions are emitting invalid typedef for __gnuc_va_list
+ * pointing to VOID. This generates warnings from btf_dump() and
+ * results in uncompilable header file, so we are fixing it up here
+ * with valid typedef into __builtin_va_list.
+ */
+ if (t->type == 0 && strcmp(name, "__gnuc_va_list") == 0) {
+ btf_dump_printf(d, "typedef __builtin_va_list __gnuc_va_list");
+ return;
+ }
+
btf_dump_printf(d, "typedef ");
btf_dump_emit_type_decl(d, t->type, name, lvl);
}
@@ -1050,7 +1067,7 @@ static void btf_dump_emit_type_decl(struct btf_dump *d, __u32 id,
* chain, restore stack, emit warning, and try to
* proceed nevertheless
*/
- pr_warning("not enough memory for decl stack:%d", err);
+ pr_warn("not enough memory for decl stack:%d", err);
d->decl_stack_cnt = stack_start;
return;
}
@@ -1079,8 +1096,8 @@ static void btf_dump_emit_type_decl(struct btf_dump *d, __u32 id,
case BTF_KIND_TYPEDEF:
goto done;
default:
- pr_warning("unexpected type in decl chain, kind:%u, id:[%u]\n",
- btf_kind(t), id);
+ pr_warn("unexpected type in decl chain, kind:%u, id:[%u]\n",
+ btf_kind(t), id);
goto done;
}
}
@@ -1306,8 +1323,8 @@ static void btf_dump_emit_type_chain(struct btf_dump *d,
return;
}
default:
- pr_warning("unexpected type in decl chain, kind:%u, id:[%u]\n",
- kind, id);
+ pr_warn("unexpected type in decl chain, kind:%u, id:[%u]\n",
+ kind, id);
return;
}