Rebase bcc to version 0.36.1
Rebase bcc to the latest upstream version (RHEL-162981) and rebuild with the LLVM 22 (RHEL-170955). The rebase fixes multiple issues: - Fix filegone, kvmexit, netqtop and tcpconnect on s390x (RHEL-118750) - Fix profile on s390x (RHEL-112865) - Fix bpf-cpufreq (RHEL-78168) - Fix bpf-syncsnoop (RHEL-78171) Resolves: RHEL-162981 Resolves: RHEL-170955 Resolves: RHEL-118750 Resolves: RHEL-112865 Resolves: RHEL-78168 Resolves: RHEL-78171 Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
This commit is contained in:
Jerome Marchand
parent
c79e89f739
commit
753319bc1a
1
.gitignore
vendored
1
.gitignore
vendored
@ -22,3 +22,4 @@
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/bcc-0.32.0.tar.gz
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/bcc-0.34.0.tar.gz
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/bcc-0.35.0.tar.gz
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/bcc-0.36.1.tar.gz
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@ -1,50 +0,0 @@
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From 9ed70cd8b423676d59f9eddcb0135fd1d19330eb Mon Sep 17 00:00:00 2001
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From: yonghong-song <ys114321@gmail.com>
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Date: Mon, 14 Jul 2025 20:21:59 -0700
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Subject: [PATCH] Fix a build failure with clang21 (#5369)
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The build error message:
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src/cc/frontends/clang/loader.cc:400:73: error: no matching function for
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call to ‘clang::TextDiagnosticPrinter::TextDiagnosticPrinter(
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llvm::raw_fd_ostream&, clang::DiagnosticOptions*)’
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400 | auto diag_client = new TextDiagnosticPrinter(llvm::errs(), &*diag_opts);
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| ^
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The llvm commit
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https://github.com/llvm/llvm-project/pull/139584
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caused the build failure.
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Adjust the code properly and the error is fixed.
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---
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src/cc/frontends/clang/loader.cc | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/src/cc/frontends/clang/loader.cc b/src/cc/frontends/clang/loader.cc
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index 07dc9d6a..6f8387aa 100644
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--- a/src/cc/frontends/clang/loader.cc
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+++ b/src/cc/frontends/clang/loader.cc
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@@ -396,11 +396,19 @@ int ClangLoader::do_compile(
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flags_cstr_rem.end());
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// set up the error reporting class
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+#if LLVM_VERSION_MAJOR >= 21
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+ DiagnosticOptions diag_opts;
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+ auto diag_client = new TextDiagnosticPrinter(llvm::errs(), diag_opts);
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+
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+ IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
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+ DiagnosticsEngine diags(DiagID, diag_opts, diag_client);
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+#else
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IntrusiveRefCntPtr<DiagnosticOptions> diag_opts(new DiagnosticOptions());
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auto diag_client = new TextDiagnosticPrinter(llvm::errs(), &*diag_opts);
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IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
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DiagnosticsEngine diags(DiagID, &*diag_opts, diag_client);
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+#endif
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// set up the command line argument wrapper
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--
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2.51.0
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@ -1,61 +0,0 @@
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From 8a9da1d866dfb69ad1ca59bdc50a799ba2da3a0c Mon Sep 17 00:00:00 2001
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From: Jerome Marchand <jmarchan@redhat.com>
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Date: Thu, 24 Oct 2024 16:56:14 +0200
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Subject: [PATCH] RHEL/Centos: tools: fix alignment in tp_args for bio tools
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The padding in tp_args is wrong on RHEL 9 / c9s kernel because of the
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kernel commit 6bc27040eb90 ("sched: Add support for lazy preemption")
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which added a common field to tracepoints.
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Now the dev field is at an offset of 12 bytes as shown by
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block_io_start/done format file.
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Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
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---
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tools/biolatency.py | 2 +-
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tools/biosnoop.py | 2 +-
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tools/biotop.py | 2 +-
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3 files changed, 3 insertions(+), 3 deletions(-)
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diff --git a/tools/biolatency.py b/tools/biolatency.py
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index 03b48a4c..ac150ea2 100755
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--- a/tools/biolatency.py
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+++ b/tools/biolatency.py
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@@ -88,7 +88,7 @@ typedef struct ext_val {
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} ext_val_t;
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struct tp_args {
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- u64 __unused__;
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+ u32 __unused__[3];
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dev_t dev;
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sector_t sector;
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unsigned int nr_sector;
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diff --git a/tools/biosnoop.py b/tools/biosnoop.py
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index f0fef98b..819e953f 100755
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--- a/tools/biosnoop.py
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+++ b/tools/biosnoop.py
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@@ -66,7 +66,7 @@ struct val_t {
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};
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struct tp_args {
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- u64 __unused__;
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+ u32 __unused__[3];
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dev_t dev;
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sector_t sector;
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unsigned int nr_sector;
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diff --git a/tools/biotop.py b/tools/biotop.py
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index 879c6b8f..4c3a1c9a 100755
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--- a/tools/biotop.py
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+++ b/tools/biotop.py
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@@ -91,7 +91,7 @@ struct val_t {
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};
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struct tp_args {
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- u64 __unused__;
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+ u32 __unused__[3];
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dev_t dev;
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sector_t sector;
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unsigned int nr_sector;
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--
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2.47.0
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@ -1,31 +0,0 @@
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From efaf25163a59627776e7334b99f78b74c8979fef Mon Sep 17 00:00:00 2001
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From: Jerome Marchand <jmarchan@redhat.com>
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Date: Tue, 7 Oct 2025 15:32:36 +0200
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Subject: [PATCH] libbpf-tools/javagc: Include usdt.bpf.h header
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Include usdt.bpf.h header to javagc.bpf.c.
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Fixes the following error:
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libbpf: usdt: failed to find USDT support BPF maps, did you forget to include bpf/usdt.bpf.h?
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attach usdt mem__pool__gc__begin failed: No such process
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Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
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---
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libbpf-tools/javagc.bpf.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/libbpf-tools/javagc.bpf.c b/libbpf-tools/javagc.bpf.c
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index 5bfe635c..35535d92 100644
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--- a/libbpf-tools/javagc.bpf.c
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+++ b/libbpf-tools/javagc.bpf.c
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@@ -3,6 +3,7 @@
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#include <vmlinux.h>
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_core_read.h>
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+#include <bpf/usdt.bpf.h>
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#include "javagc.h"
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struct {
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--
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2.51.0
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@ -1,274 +0,0 @@
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From bf795413ca6c3ee09fb3fff118bec2e5a43d0acb Mon Sep 17 00:00:00 2001
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From: Jerome Marchand <jmarchan@redhat.com>
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Date: Sun, 13 Jul 2025 06:12:33 +0200
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Subject: [PATCH] libbpf-tools/klockstat: Allows kprobe fallback to work with
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lock debugging (#5359)
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The klockstat tool fallback on kprobes when fentries are not
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available, but the fallback doesn't work on debug kernel
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(CONFIG_DEBUG_LOCK_ALLOC enabled).
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Attach kprobes to the debug locking functions (*_nested) when they
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exists as is done with the fentry code.
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Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
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---
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libbpf-tools/klockstat.bpf.c | 195 +++++++++++++++++++++++++++++++++++
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libbpf-tools/klockstat.c | 35 +++++++
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2 files changed, 230 insertions(+)
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diff --git a/libbpf-tools/klockstat.bpf.c b/libbpf-tools/klockstat.bpf.c
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index c53cdcdb..b2a94354 100644
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--- a/libbpf-tools/klockstat.bpf.c
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+++ b/libbpf-tools/klockstat.bpf.c
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@@ -832,6 +832,201 @@ int BPF_KPROBE(kprobe_up_write, struct rw_semaphore *lock)
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return 0;
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}
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+/* CONFIG_DEBUG_LOCK_ALLOC is enabled */
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+
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+SEC("kprobe/mutex_lock_nested")
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+int BPF_KPROBE(kprobe_mutex_lock_nested, struct mutex *lock)
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+{
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
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+
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+ bpf_map_update_elem(&locks, &tid, &lock, BPF_ANY);
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+ lock_contended(ctx, lock);
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+ return 0;
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+}
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+
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+SEC("kretprobe/mutex_lock_nested")
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+int BPF_KRETPROBE(kprobe_mutex_lock_exit_nested, long ret)
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+{
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
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+ void **lock;
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+
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+ lock = bpf_map_lookup_elem(&locks, &tid);
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+ if (!lock)
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+ return 0;
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+
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+ bpf_map_delete_elem(&locks, &tid);
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+ lock_acquired(*lock);
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+ return 0;
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+}
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+
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+SEC("kprobe/mutex_lock_interruptible_nested")
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+int BPF_KPROBE(kprobe_mutex_lock_interruptible_nested, struct mutex *lock)
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+{
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
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+
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+ bpf_map_update_elem(&locks, &tid, &lock, BPF_ANY);
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+ lock_contended(ctx, lock);
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+ return 0;
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+}
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+
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+SEC("kretprobe/mutex_lock_interruptible_nested")
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+int BPF_KRETPROBE(kprobe_mutex_lock_interruptible_exit_nested, long ret)
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+{
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
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+ void **lock;
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+
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+ lock = bpf_map_lookup_elem(&locks, &tid);
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+ if (!lock)
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+ return 0;
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+
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+ bpf_map_delete_elem(&locks, &tid);
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+
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+ if (ret)
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+ lock_aborted(*lock);
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+ else
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+ lock_acquired(*lock);
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+ return 0;
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+}
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+
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+SEC("kprobe/mutex_lock_killable_nested")
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+int BPF_KPROBE(kprobe_mutex_lock_killable_nested, struct mutex *lock)
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+{
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
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+
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+ bpf_map_update_elem(&locks, &tid, &lock, BPF_ANY);
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+ lock_contended(ctx, lock);
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+ return 0;
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+}
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+
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+SEC("kretprobe/mutex_lock_killable_nested")
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+int BPF_KRETPROBE(kprobe_mutex_lock_killable_exit_nested, long ret)
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+{
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
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+ void **lock;
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+
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+ lock = bpf_map_lookup_elem(&locks, &tid);
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+ if (!lock)
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+ return 0;
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+
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+ bpf_map_delete_elem(&locks, &tid);
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+
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+ if (ret)
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+ lock_aborted(*lock);
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+ else
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+ lock_acquired(*lock);
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+ return 0;
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+}
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+
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+SEC("kprobe/down_read_nested")
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+int BPF_KPROBE(kprobe_down_read_nested, struct rw_semaphore *lock)
|
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+{
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+
|
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+ bpf_map_update_elem(&locks, &tid, &lock, BPF_ANY);
|
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+ lock_contended(ctx, lock);
|
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+ return 0;
|
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+}
|
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+
|
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+SEC("kretprobe/down_read_nested")
|
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+int BPF_KRETPROBE(kprobe_down_read_exit_nested, long ret)
|
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+{
|
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+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+ void **lock;
|
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+
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+ lock = bpf_map_lookup_elem(&locks, &tid);
|
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+ if (!lock)
|
||||
+ return 0;
|
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+
|
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+ bpf_map_delete_elem(&locks, &tid);
|
||||
+
|
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+ lock_acquired(*lock);
|
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+ return 0;
|
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+}
|
||||
+
|
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+SEC("kprobe/down_read_killable_nested")
|
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+int BPF_KPROBE(kprobe_down_read_killable_nested, struct rw_semaphore *lock)
|
||||
+{
|
||||
+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+
|
||||
+ bpf_map_update_elem(&locks, &tid, &lock, BPF_ANY);
|
||||
+ lock_contended(ctx, lock);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+SEC("kretprobe/down_read_killable_nested")
|
||||
+int BPF_KRETPROBE(kprobe_down_read_killable_exit_nested, long ret)
|
||||
+{
|
||||
+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+ void **lock;
|
||||
+
|
||||
+ lock = bpf_map_lookup_elem(&locks, &tid);
|
||||
+ if (!lock)
|
||||
+ return 0;
|
||||
+
|
||||
+ bpf_map_delete_elem(&locks, &tid);
|
||||
+
|
||||
+ if (ret)
|
||||
+ lock_aborted(*lock);
|
||||
+ else
|
||||
+ lock_acquired(*lock);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+SEC("kprobe/down_write_nested")
|
||||
+int BPF_KPROBE(kprobe_down_write_nested, struct rw_semaphore *lock)
|
||||
+{
|
||||
+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+
|
||||
+ bpf_map_update_elem(&locks, &tid, &lock, BPF_ANY);
|
||||
+ lock_contended(ctx, lock);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+SEC("kretprobe/down_write_nested")
|
||||
+int BPF_KRETPROBE(kprobe_down_write_exit_nested, long ret)
|
||||
+{
|
||||
+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+ void **lock;
|
||||
+
|
||||
+ lock = bpf_map_lookup_elem(&locks, &tid);
|
||||
+ if (!lock)
|
||||
+ return 0;
|
||||
+
|
||||
+ bpf_map_delete_elem(&locks, &tid);
|
||||
+
|
||||
+ lock_acquired(*lock);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+SEC("kprobe/down_write_killable_nested")
|
||||
+int BPF_KPROBE(kprobe_down_write_killable_nested, struct rw_semaphore *lock)
|
||||
+{
|
||||
+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+
|
||||
+ bpf_map_update_elem(&locks, &tid, &lock, BPF_ANY);
|
||||
+ lock_contended(ctx, lock);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+SEC("kretprobe/down_write_killable_nested")
|
||||
+int BPF_KRETPROBE(kprobe_down_write_killable_exit_nested, long ret)
|
||||
+{
|
||||
+ u32 tid = (u32)bpf_get_current_pid_tgid();
|
||||
+ void **lock;
|
||||
+
|
||||
+ lock = bpf_map_lookup_elem(&locks, &tid);
|
||||
+ if (!lock)
|
||||
+ return 0;
|
||||
+
|
||||
+ bpf_map_delete_elem(&locks, &tid);
|
||||
+
|
||||
+ if (ret)
|
||||
+ lock_aborted(*lock);
|
||||
+ else
|
||||
+ lock_acquired(*lock);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
SEC("kprobe/rtnetlink_rcv_msg")
|
||||
int BPF_KPROBE(kprobe_rtnetlink_rcv_msg, struct sk_buff *skb, struct nlmsghdr *nlh,
|
||||
struct netlink_ext_ack *ext)
|
||||
diff --git a/libbpf-tools/klockstat.c b/libbpf-tools/klockstat.c
|
||||
index ab5ed908..c3c9be89 100644
|
||||
--- a/libbpf-tools/klockstat.c
|
||||
+++ b/libbpf-tools/klockstat.c
|
||||
@@ -879,6 +879,41 @@ static void enable_kprobes(struct klockstat_bpf *obj)
|
||||
bpf_program__set_autoload(obj->progs.netlink_dump_exit, false);
|
||||
bpf_program__set_autoload(obj->progs.sock_do_ioctl, false);
|
||||
bpf_program__set_autoload(obj->progs.sock_do_ioctl_exit, false);
|
||||
+
|
||||
+ /* CONFIG_DEBUG_LOCK_ALLOC is on */
|
||||
+ if (kprobe_exists("mutex_lock_nested")) {
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_exit, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_interruptible, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_interruptible_exit, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_killable, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_killable_exit, false);
|
||||
+
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_exit, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_killable, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_killable_exit, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_exit, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_killable, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_killable_exit, false);
|
||||
+ } else {
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_interruptible_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_interruptible_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_killable_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_killable_exit_nested, false);
|
||||
+
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_killable_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_killable_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_killable_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_killable_exit_nested, false);
|
||||
+ }
|
||||
}
|
||||
|
||||
static void disable_nldump_ioctl_probes(struct klockstat_bpf *obj)
|
||||
--
|
||||
2.50.0
|
||||
|
||||
@ -1,49 +0,0 @@
|
||||
From f372342fd4c1cd0c121500301833177fd6fb45ac Mon Sep 17 00:00:00 2001
|
||||
From: Jerome Marchand <jmarchan@redhat.com>
|
||||
Date: Fri, 18 Jul 2025 14:15:46 +0200
|
||||
Subject: [PATCH] libbpf-tools/klockstat: Disable *_nested kprobes in the
|
||||
fentry code
|
||||
|
||||
Commit 789e923f ("libbpf-tools/klockstat: Allows kprobe fallback to
|
||||
work with lock debugging (#5359)") add new kprobes to be enabled on
|
||||
debug kernel and disabled on normal kernel. But it forgot to disable
|
||||
them in the fentry code, along with other kprobes.
|
||||
|
||||
Disable *_nested kprobes in the fentry code.
|
||||
|
||||
Fixes: 789e923f ("libbpf-tools/klockstat: Allows kprobe fallback to work with lock debugging (#5359)")
|
||||
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
|
||||
---
|
||||
libbpf-tools/klockstat.c | 16 ++++++++++++++++
|
||||
1 file changed, 16 insertions(+)
|
||||
|
||||
diff --git a/libbpf-tools/klockstat.c b/libbpf-tools/klockstat.c
|
||||
index c3c9be89..59be05ac 100644
|
||||
--- a/libbpf-tools/klockstat.c
|
||||
+++ b/libbpf-tools/klockstat.c
|
||||
@@ -804,6 +804,22 @@ static void enable_fentry(struct klockstat_bpf *obj)
|
||||
bpf_program__set_autoload(obj->progs.kprobe_down_write_killable_exit, false);
|
||||
bpf_program__set_autoload(obj->progs.kprobe_up_write, false);
|
||||
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_interruptible_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_interruptible_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_killable_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_mutex_lock_killable_exit_nested, false);
|
||||
+
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_killable_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_read_killable_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_exit_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_killable_nested, false);
|
||||
+ bpf_program__set_autoload(obj->progs.kprobe_down_write_killable_exit_nested, false);
|
||||
+
|
||||
bpf_program__set_autoload(obj->progs.kprobe_rtnetlink_rcv_msg, false);
|
||||
bpf_program__set_autoload(obj->progs.kprobe_rtnetlink_rcv_msg_exit, false);
|
||||
bpf_program__set_autoload(obj->progs.kprobe_netlink_dump, false);
|
||||
--
|
||||
2.50.1
|
||||
|
||||
@ -1,79 +0,0 @@
|
||||
From 40fcbbe153114450ab631be8cefa998bba13ddd9 Mon Sep 17 00:00:00 2001
|
||||
From: Rong Tao <rongtao@cestc.cn>
|
||||
Date: Sun, 13 Jul 2025 12:26:14 +0800
|
||||
Subject: [PATCH] libbpf-tools: ksnoop: Fix two invalid access to map value
|
||||
(#5361)
|
||||
|
||||
On fedora42, llvm 20.1.7, kernel 6.15.4-200.fc42.x86_64 has two verifier
|
||||
errors. Test with command:
|
||||
|
||||
$ sudo ./ksnoop trace do_sys_openat2
|
||||
|
||||
1st:
|
||||
; last_stack_depth = stack_depth - 1; @ ksnoop.bpf.c:102
|
||||
108: (bc) w3 = w6 ; frame1: R3_w=scalar(id=5,smin=smin32=0,smax=umax=smax32=umax32=14,var_off=(0x0; 0xf)) R6=scalar(id=5,smin=smin32=0,smax=umax=smax32=umax32=14,var_off=(0x0; 0xf))
|
||||
109: (04) w3 += -1 ; frame1: R3_w=scalar(smin=0,smax=umax=0xffffffff,smin32=-1,smax32=13,var_off=(0x0; 0xffffffff))
|
||||
110: (bc) w4 = w3 ; frame1: R3_w=scalar(id=6,smin=0,smax=umax=0xffffffff,smin32=-1,smax32=13,var_off=(0x0; 0xffffffff)) R4_w=scalar(id=6,smin=0,smax=umax=0xffffffff,smin32=-1,smax32=13,var_off=(0x0; 0xffffffff))
|
||||
111: (54) w4 &= 255 ; frame1: R4_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=255,var_off=(0x0; 0xff))
|
||||
112: (b7) r7 = 0 ; frame1: R7=0
|
||||
; if (last_stack_depth >= 0 && @ ksnoop.bpf.c:104
|
||||
113: (26) if w4 > 0xf goto pc+5 ; frame1: R4=scalar(smin=smin32=0,smax=umax=smax32=umax32=15,var_off=(0x0; 0xf))
|
||||
; last_ip = func_stack->ips[last_stack_depth]; @ ksnoop.bpf.c:106
|
||||
114: (57) r3 &= 255 ; frame1: R3_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=255,var_off=(0x0; 0xff))
|
||||
115: (67) r3 <<= 3 ; frame1: R3_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=2040,var_off=(0x0; 0x7f8))
|
||||
116: (bf) r4 = r2 ; frame1: R2=map_value(map=ksnoop_func_sta,ks=8,vs=144) R4_w=map_value(map=ksnoop_func_sta,ks=8,vs=144)
|
||||
117: (0f) r4 += r3 ; frame1: R3_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=2040,var_off=(0x0; 0x7f8)) R4_w=map_value(map=ksnoop_func_sta,ks=8,vs=144,smin=smin32=0,smax=umax=smax32=umax32=2040,var_off=(0x0; 0x7f8))
|
||||
118: (79) r7 = *(u64 *)(r4 +8)
|
||||
invalid access to map value, value_size=144 off=2048 size=8
|
||||
|
||||
The last_stack_depth use 'w4 > 0xf' check boundary, but 'r3 &= 255'
|
||||
is beyond 0xf (0~15).
|
||||
|
||||
2nd:
|
||||
; trace_len = sizeof(*trace) + trace->buf_len - MAX_TRACE_BUF; @ ksnoop.bpf.c:222
|
||||
502: (04) w5 += 4008 ; frame1: R5_w=scalar(smin=umin=smin32=umin32=4009,smax=umax=smax32=umax32=0x10fa7,var_off=(0x0; 0x1ffff))
|
||||
503: (bc) w2 = w5 ; frame1: R2_w=scalar(id=27,smin=umin=smin32=umin32=4009,smax=umax=smax32=umax32=0x10fa7,var_off=(0x0; 0x1ffff)) R5_w=scalar(id=27,smin=umin=smin32=umin32=4009,smax=umax=smax32=umax32=0x10fa7,var_off=(0x0; 0x1ffff))
|
||||
504: (54) w2 &= 65535 ; frame1: R2_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=0xffff,var_off=(0x0; 0xffff))
|
||||
; if (trace_len <= sizeof(*trace)) @ ksnoop.bpf.c:224
|
||||
505: (26) if w2 > 0x3fa8 goto pc+7 ; frame1: R2_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=16296,var_off=(0x0; 0x3fff))
|
||||
506: (57) r5 &= 65535 ; frame1: R5_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=0xffff,var_off=(0x0; 0xffff))
|
||||
507: (18) r2 = 0xffff8ec554700c00 ; frame1: R2_w=map_ptr(map=ksnoop_perf_map,ks=4,vs=4)
|
||||
509: (18) r3 = 0xffffffff ; frame1: R3_w=0xffffffff
|
||||
511: (bf) r4 = r9 ; frame1: R4_w=map_value(map=ksnoop_func_map,ks=8,vs=16296) R9=map_value(map=ksnoop_func_map,ks=8,vs=16296)
|
||||
512: (85) call bpf_perf_event_output#25
|
||||
invalid access to map value, value_size=16296 off=0 size=65535
|
||||
|
||||
Just fix it with size type 'u64' instead of 'u32', see:
|
||||
long bpf_perf_event_output(void *ctx, struct bpf_map *map, u64 flags, void *data, u64 size)
|
||||
|
||||
Signed-off-by: Rong Tao <rongtao@cestc.cn>
|
||||
---
|
||||
libbpf-tools/ksnoop.bpf.c | 5 +++--
|
||||
1 file changed, 3 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/libbpf-tools/ksnoop.bpf.c b/libbpf-tools/ksnoop.bpf.c
|
||||
index f07ff561..15aa7d75 100644
|
||||
--- a/libbpf-tools/ksnoop.bpf.c
|
||||
+++ b/libbpf-tools/ksnoop.bpf.c
|
||||
@@ -103,7 +103,8 @@ static struct trace *get_trace(struct pt_regs *ctx, bool entry)
|
||||
/* get address of last function we called */
|
||||
if (last_stack_depth >= 0 &&
|
||||
last_stack_depth < FUNC_MAX_STACK_DEPTH)
|
||||
- last_ip = func_stack->ips[last_stack_depth];
|
||||
+ bpf_probe_read_kernel(&last_ip, sizeof(last_ip),
|
||||
+ &func_stack->ips[last_stack_depth]);
|
||||
/* push ip onto stack. return will pop it. */
|
||||
func_stack->ips[stack_depth] = ip;
|
||||
/* mask used in case bounds checks are optimized out */
|
||||
@@ -202,7 +203,7 @@ static struct trace *get_trace(struct pt_regs *ctx, bool entry)
|
||||
|
||||
static void output_trace(struct pt_regs *ctx, struct trace *trace)
|
||||
{
|
||||
- __u16 trace_len;
|
||||
+ __u64 trace_len;
|
||||
|
||||
if (trace->buf_len == 0)
|
||||
goto skip;
|
||||
--
|
||||
2.51.0
|
||||
|
||||
@ -1,64 +0,0 @@
|
||||
From 377b19d669154e48e7278d9f5fe3afbf1f9c078b Mon Sep 17 00:00:00 2001
|
||||
From: Francois Lesueur <11961066+flesueur@users.noreply.github.com>
|
||||
Date: Wed, 6 Aug 2025 06:11:02 +0200
|
||||
Subject: [PATCH] tools/tcpconnect: fix iov field for DNS with Linux>=6.4
|
||||
(#5382)
|
||||
|
||||
Tcpconnect with DNS (-d flag) does not work with Linux>=6.4. The kernel representation of struct iov_iter changed in 6.4.
|
||||
|
||||
This PR adapts the iov field depending on the structure. It also removes inet_sk() which did not work on a recent kernel (6.6).
|
||||
---
|
||||
tools/tcpconnect.py | 14 +++++++++-----
|
||||
1 file changed, 9 insertions(+), 5 deletions(-)
|
||||
|
||||
diff --git a/tools/tcpconnect.py b/tools/tcpconnect.py
|
||||
index a38bad8d..dc35cb28 100755
|
||||
--- a/tools/tcpconnect.py
|
||||
+++ b/tools/tcpconnect.py
|
||||
@@ -276,7 +276,7 @@ int trace_udp_recvmsg(struct pt_regs *ctx)
|
||||
{
|
||||
__u64 pid_tgid = bpf_get_current_pid_tgid();
|
||||
struct sock *sk = (struct sock *)PT_REGS_PARM1(ctx);
|
||||
- struct inet_sock *is = inet_sk(sk);
|
||||
+ struct inet_sock *is = (struct inet_sock *)sk;
|
||||
|
||||
// only grab port 53 packets, 13568 is ntohs(53)
|
||||
if (is->inet_dport == 13568) {
|
||||
@@ -303,7 +303,7 @@ int trace_udp_ret_recvmsg(struct pt_regs *ctx)
|
||||
goto delete_and_return;
|
||||
size_t buflen = (size_t)copied;
|
||||
|
||||
- if (buflen > msghdr->msg_iter.iov->iov_len)
|
||||
+ if (buflen > msghdr->msg_iter.IOV_FIELD->iov_len)
|
||||
goto delete_and_return;
|
||||
|
||||
if (buflen > MAX_PKT)
|
||||
@@ -313,7 +313,7 @@ int trace_udp_ret_recvmsg(struct pt_regs *ctx)
|
||||
if (!data) // this should never happen, just making the verifier happy
|
||||
return 0;
|
||||
|
||||
- void *iovbase = msghdr->msg_iter.iov->iov_base;
|
||||
+ void *iovbase = msghdr->msg_iter.IOV_FIELD->iov_base;
|
||||
bpf_probe_read(data->pkt, buflen, iovbase);
|
||||
dns_events.perf_submit(ctx, data, buflen);
|
||||
|
||||
@@ -386,10 +386,14 @@ bpf_text = bpf_text.replace('FILTER_FAMILY', '')
|
||||
bpf_text = bpf_text.replace('FILTER_UID', '')
|
||||
|
||||
if args.dns:
|
||||
- if BPF.kernel_struct_has_field(b'iov_iter', b'iter_type') == 1:
|
||||
+ if BPF.kernel_struct_has_field(b'iov_iter', b'type') == 1:
|
||||
+ dns_bpf_text = dns_bpf_text.replace('TYPE_FIELD', 'type')
|
||||
+ else:
|
||||
dns_bpf_text = dns_bpf_text.replace('TYPE_FIELD', 'iter_type')
|
||||
+ if BPF.kernel_struct_has_field(b'iov_iter', b'iov') == 1:
|
||||
+ dns_bpf_text = dns_bpf_text.replace('IOV_FIELD', 'iov')
|
||||
else:
|
||||
- dns_bpf_text = dns_bpf_text.replace('TYPE_FIELD', 'type')
|
||||
+ dns_bpf_text = dns_bpf_text.replace('IOV_FIELD', '__iov')
|
||||
bpf_text += dns_bpf_text
|
||||
|
||||
if debug or args.ebpf:
|
||||
--
|
||||
2.51.0
|
||||
|
||||
63
bcc-0.36.1-Fix-build-with-LLVM-22.patch
Normal file
63
bcc-0.36.1-Fix-build-with-LLVM-22.patch
Normal file
@ -0,0 +1,63 @@
|
||||
From 962768cfcfe9410a2a3328c3d50b599b3fd718a0 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Holger=20Hoffst=C3=A4tte?= <holger@applied-asynchrony.com>
|
||||
Date: Mon, 2 Mar 2026 10:03:15 +0100
|
||||
Subject: [PATCH 1/2] Fix build with LLVM-22
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
LLVM-22 changed the signatures of various createDiagnostics() calls [1].
|
||||
Introduce a new version macro guard and adapt the code to the changed API.
|
||||
|
||||
Fixes #5483
|
||||
|
||||
[1] https://github.com/llvm/llvm-project/commit/30633f30894129919050f24fdd1f8f6bc46beae0
|
||||
|
||||
Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
|
||||
---
|
||||
src/cc/frontends/clang/loader.cc | 15 ++++++++++++---
|
||||
1 file changed, 12 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/src/cc/frontends/clang/loader.cc b/src/cc/frontends/clang/loader.cc
|
||||
index 6f8387aa..1f706344 100644
|
||||
--- a/src/cc/frontends/clang/loader.cc
|
||||
+++ b/src/cc/frontends/clang/loader.cc
|
||||
@@ -464,7 +464,10 @@ int ClangLoader::do_compile(
|
||||
}
|
||||
invocation0.getFrontendOpts().DisableFree = false;
|
||||
|
||||
-#if LLVM_VERSION_MAJOR >= 20
|
||||
+#if LLVM_VERSION_MAJOR >= 22
|
||||
+ compiler0.setVirtualFileSystem(llvm::vfs::getRealFileSystem());
|
||||
+ compiler0.createDiagnostics(new IgnoringDiagConsumer());
|
||||
+#elif LLVM_VERSION_MAJOR >= 20
|
||||
compiler0.createDiagnostics(*llvm::vfs::getRealFileSystem(), new IgnoringDiagConsumer());
|
||||
#else
|
||||
compiler0.createDiagnostics(new IgnoringDiagConsumer());
|
||||
@@ -487,7 +490,10 @@ int ClangLoader::do_compile(
|
||||
add_main_input(invocation1, main_path, &*out_buf);
|
||||
invocation1.getFrontendOpts().DisableFree = false;
|
||||
|
||||
-#if LLVM_VERSION_MAJOR >= 20
|
||||
+#if LLVM_VERSION_MAJOR >= 22
|
||||
+ compiler1.setVirtualFileSystem(llvm::vfs::getRealFileSystem());
|
||||
+ compiler1.createDiagnostics();
|
||||
+#elif LLVM_VERSION_MAJOR >= 20
|
||||
compiler1.createDiagnostics(*llvm::vfs::getRealFileSystem());
|
||||
#else
|
||||
compiler1.createDiagnostics();
|
||||
@@ -517,7 +523,10 @@ int ClangLoader::do_compile(
|
||||
invocation2.getCodeGenOpts().setInlining(CodeGenOptions::NormalInlining);
|
||||
// suppress warnings in the 2nd pass, but bail out on errors (our fault)
|
||||
invocation2.getDiagnosticOpts().IgnoreWarnings = true;
|
||||
-#if LLVM_VERSION_MAJOR >= 20
|
||||
+#if LLVM_VERSION_MAJOR >= 22
|
||||
+ compiler2.setVirtualFileSystem(llvm::vfs::getRealFileSystem());
|
||||
+ compiler2.createDiagnostics();
|
||||
+#elif LLVM_VERSION_MAJOR >= 20
|
||||
compiler2.createDiagnostics(*llvm::vfs::getRealFileSystem());
|
||||
#else
|
||||
compiler2.createDiagnostics();
|
||||
--
|
||||
2.54.0
|
||||
|
||||
59
bcc-0.36.1-clang-Add-microsoft-extensions-build-flags.patch
Normal file
59
bcc-0.36.1-clang-Add-microsoft-extensions-build-flags.patch
Normal file
@ -0,0 +1,59 @@
|
||||
From 7aecc13fe74d6a2e1ad07422e25b76e61169a822 Mon Sep 17 00:00:00 2001
|
||||
From: Avinesh Kumar <avinesh.kumar@suse.com>
|
||||
Date: Fri, 6 Mar 2026 16:00:01 +0100
|
||||
Subject: [PATCH 2/2] clang: Add microsoft extensions build flags
|
||||
|
||||
Starting in Linux 6.19, `struct ns_common` fields were moved into an
|
||||
anonymous nested forward declaration (`struct ns_tree;`) within a
|
||||
union.[1]
|
||||
This causes Clang to throw a `[-Wmissing-declarations]` warning and
|
||||
fail with missing member errors.
|
||||
|
||||
This affects tools pulling in `<linux/pid_namespace.h>` directly or
|
||||
transitively (e.g. filetop, runqlat)
|
||||
|
||||
Errors encountered:
|
||||
include/linux/ns/ns_common_types.h:117:3: warning: declaration does not declare anything [-Wmissing-declarations]
|
||||
117 | struct ns_tree;
|
||||
| ^~~~~~~~~~~~~~
|
||||
In file included from /virtual/main.c:5:
|
||||
In file included from include/linux/pid_namespace.h:11:
|
||||
include/linux/ns_common.h:25:23: error: no member named 'ns_id' in 'struct ns_common'
|
||||
25 | VFS_WARN_ON_ONCE(ns->ns_id == 0);
|
||||
| ~~ ^
|
||||
include/linux/ns_common.h:26:13: error: no member named 'ns_id' in 'struct ns_common'
|
||||
26 | return ns->ns_id <= NS_LAST_INIT_ID;
|
||||
| ~~ ^
|
||||
include/linux/ns_common.h:60:26: error: no member named '__ns_ref_active' in 'struct ns_common'
|
||||
60 | return atomic_read(&ns->__ns_ref_active);
|
||||
|
||||
This patch fixes the issue globally by turning on microsoft extensions
|
||||
flags. These flags have already been in the linux kernel. [2]
|
||||
|
||||
[1] https://github.com/torvalds/linux/commit/a657bc8a75cf40c3d0814fe6488ba4af56528f42
|
||||
[2] https://github.com/torvalds/linux/commit/c4781dc3d1cf0e017e1f290607ddc56cfe187afc
|
||||
|
||||
Signed-off-by: Avinesh Kumar <avinesh.kumar@suse.com>
|
||||
Fixes: #5488
|
||||
---
|
||||
src/cc/frontends/clang/kbuild_helper.cc | 4 ++++
|
||||
1 file changed, 4 insertions(+)
|
||||
|
||||
diff --git a/src/cc/frontends/clang/kbuild_helper.cc b/src/cc/frontends/clang/kbuild_helper.cc
|
||||
index 4f09a398..b5d6a55e 100644
|
||||
--- a/src/cc/frontends/clang/kbuild_helper.cc
|
||||
+++ b/src/cc/frontends/clang/kbuild_helper.cc
|
||||
@@ -137,6 +137,10 @@ int KBuildHelper::get_flags(const char *uname_machine, vector<string> *cflags) {
|
||||
cflags->push_back("-Wno-pointer-sign");
|
||||
cflags->push_back("-fno-stack-protector");
|
||||
|
||||
+ // Align with Linux kernel's -fms-extensions flags adopted since v6.19
|
||||
+ cflags->push_back("-fms-extensions");
|
||||
+ cflags->push_back("-Wno-microsoft-anon-tag");
|
||||
+
|
||||
/*
|
||||
* kernel is usually build with gcc and the kernel devel header
|
||||
* reflects that fact. However we build with clang and this must be
|
||||
--
|
||||
2.54.0
|
||||
|
||||
22
bcc.spec
22
bcc.spec
@ -24,19 +24,14 @@
|
||||
|
||||
|
||||
Name: bcc
|
||||
Version: 0.35.0
|
||||
Release: 2%{?dist}
|
||||
Version: 0.36.1
|
||||
Release: 1%{?dist}
|
||||
Summary: BPF Compiler Collection (BCC)
|
||||
License: ASL 2.0
|
||||
URL: https://github.com/iovisor/bcc
|
||||
Source0: %{url}/archive/v%{version}/%{name}-%{version}.tar.gz
|
||||
Patch0: %%{name}-%%{version}-RHEL-Centos-tools-fix-alignment-in-tp_args-for-bio-t.patch
|
||||
Patch1: %%{name}-%%{version}-libbpf-tools-klockstat-Allows-kprobe-fallback-to-wor.patch
|
||||
Patch2: %%{name}-%%{version}-libbpf-tools-klockstat-Disable-_nested-kprobes-in-th.patch
|
||||
Patch3: %%{name}-%%{version}-Fix-a-build-failure-with-clang21-5369.patch
|
||||
Patch4: %%{name}-%%{version}-libbpf-tools-ksnoop-Fix-two-invalid-access-to-map-va.patch
|
||||
Patch5: %%{name}-%%{version}-libbpf-tools-javagc-Include-usdt.bpf.h-header.patch
|
||||
Patch6: %%{name}-%%{version}-tools-tcpconnect-fix-iov-field-for-DNS-with-Linux-6..patch
|
||||
Patch0: %%{name}-%%{version}-Fix-build-with-LLVM-22.patch
|
||||
Patch1: %%{name}-%%{version}-clang-Add-microsoft-extensions-build-flags.patch
|
||||
|
||||
# Arches will be included as upstream support is added and dependencies are
|
||||
# satisfied in the respective arches
|
||||
@ -275,6 +270,15 @@ cp -a libbpf-tools/tmp-install/bin/* %{buildroot}/%{_sbindir}/
|
||||
%endif
|
||||
|
||||
%changelog
|
||||
* Wed May 20 2026 Jerome Marchand <jmarchan@redhat.com> - 0.36.1-1
|
||||
- Rebase to version 0.36.1 (RHEL-162981)
|
||||
- Rebuild with LLVM 22 (RHEL-170955)
|
||||
- Got rid of the RHEL only bio tool fix thanks to comnmit 36305815
|
||||
- Fix filegone, kvmexit, netqtop and tcpconnect on s390x (RHEL-118750)
|
||||
- Fix profile on s390x (RHEL-112865)
|
||||
- Fix bpf-cpufreq (RHEL-78168)
|
||||
- Fix bpf-syncsnoop (RHEL-78171)
|
||||
|
||||
* Mon Dec 01 2025 Jerome Marchand <jmarchan@redhat.com> - 0.35.0-2
|
||||
- Rebuild with LLVM 21 (RHEL-108343)
|
||||
|
||||
|
||||
2
sources
2
sources
@ -1 +1 @@
|
||||
SHA512 (bcc-0.35.0.tar.gz) = 23cc1413fef785165fe9fd29a242fb13e4e56da7d63699dbed3d6d12902a1de392b412cb0e5754eff5aeecf0a023568d593c9f4cb5bca7a88013aadfaef4fa3d
|
||||
SHA512 (bcc-0.36.1.tar.gz) = bada939f35deb806989a6f8b04943aecde472a4a85cd781861c67051a75fd197988090e67f5f937080b8d47643bc209cf7e83fbd6d811d727484d03f7be92092
|
||||
|
||||
Loading…
Reference in New Issue
Block a user