Rebase bcc to version 0.36.1
Rebase bcc to the latest upstream version (RHEL-162980) and rebuild with the LLVM 22 (RHEL-140402). The rebase fixes multiple issues: - Fix multiple failure introduced by BPF 6.19 update (RHEL-174797) - Fix klockstat (RHEL-174798) - Fix bpf-cpufreq (RHEL-93855) - Fix bpf-syncsnoop (RHEL-93854) - Fix tcpaccept (RHEL-93424) - Fix filegone, kvmexit, netqtop and tcpconnect on s390x (RHEL-75515) - Fix profile on s390x (RHEL-68950) Resolves: RHEL-162980 Resolves: RHEL-140402 Resolves: RHEL-174797 Resolves: RHEL-174798 Resolves: RHEL-93855 Resolves: RHEL-93854 Resolves: RHEL-75515 Resolves: RHEL-68950 Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
This commit is contained in:
Jerome Marchand
parent
8a18d01e9a
commit
8a21b6323e
1
.gitignore
vendored
1
.gitignore
vendored
@ -26,3 +26,4 @@
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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 6a0030da509eb0c28d2d8a5ccc2f07c9fd9d4e45 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 3/6] 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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@ -1,31 +0,0 @@
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From 43e4e1e12a00366fb29126f8929a7678bbca8323 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 5/6] 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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@ -1,79 +0,0 @@
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From 7804b1238f6cb1a874a2c4a06caeac928412d0f5 Mon Sep 17 00:00:00 2001
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From: Rong Tao <rongtao@cestc.cn>
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Date: Sun, 13 Jul 2025 12:26:14 +0800
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Subject: [PATCH 4/6] libbpf-tools: ksnoop: Fix two invalid access to map value
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(#5361)
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On fedora42, llvm 20.1.7, kernel 6.15.4-200.fc42.x86_64 has two verifier
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errors. Test with command:
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$ sudo ./ksnoop trace do_sys_openat2
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1st:
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; last_stack_depth = stack_depth - 1; @ ksnoop.bpf.c:102
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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))
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109: (04) w3 += -1 ; frame1: R3_w=scalar(smin=0,smax=umax=0xffffffff,smin32=-1,smax32=13,var_off=(0x0; 0xffffffff))
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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))
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111: (54) w4 &= 255 ; frame1: R4_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=255,var_off=(0x0; 0xff))
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112: (b7) r7 = 0 ; frame1: R7=0
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; if (last_stack_depth >= 0 && @ ksnoop.bpf.c:104
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113: (26) if w4 > 0xf goto pc+5 ; frame1: R4=scalar(smin=smin32=0,smax=umax=smax32=umax32=15,var_off=(0x0; 0xf))
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; last_ip = func_stack->ips[last_stack_depth]; @ ksnoop.bpf.c:106
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114: (57) r3 &= 255 ; frame1: R3_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=255,var_off=(0x0; 0xff))
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115: (67) r3 <<= 3 ; frame1: R3_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=2040,var_off=(0x0; 0x7f8))
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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)
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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))
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118: (79) r7 = *(u64 *)(r4 +8)
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invalid access to map value, value_size=144 off=2048 size=8
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The last_stack_depth use 'w4 > 0xf' check boundary, but 'r3 &= 255'
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is beyond 0xf (0~15).
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2nd:
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; trace_len = sizeof(*trace) + trace->buf_len - MAX_TRACE_BUF; @ ksnoop.bpf.c:222
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502: (04) w5 += 4008 ; frame1: R5_w=scalar(smin=umin=smin32=umin32=4009,smax=umax=smax32=umax32=0x10fa7,var_off=(0x0; 0x1ffff))
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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))
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504: (54) w2 &= 65535 ; frame1: R2_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=0xffff,var_off=(0x0; 0xffff))
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; if (trace_len <= sizeof(*trace)) @ ksnoop.bpf.c:224
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505: (26) if w2 > 0x3fa8 goto pc+7 ; frame1: R2_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=16296,var_off=(0x0; 0x3fff))
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506: (57) r5 &= 65535 ; frame1: R5_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=0xffff,var_off=(0x0; 0xffff))
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507: (18) r2 = 0xffff8ec554700c00 ; frame1: R2_w=map_ptr(map=ksnoop_perf_map,ks=4,vs=4)
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509: (18) r3 = 0xffffffff ; frame1: R3_w=0xffffffff
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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)
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512: (85) call bpf_perf_event_output#25
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invalid access to map value, value_size=16296 off=0 size=65535
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Just fix it with size type 'u64' instead of 'u32', see:
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long bpf_perf_event_output(void *ctx, struct bpf_map *map, u64 flags, void *data, u64 size)
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Signed-off-by: Rong Tao <rongtao@cestc.cn>
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---
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libbpf-tools/ksnoop.bpf.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/libbpf-tools/ksnoop.bpf.c b/libbpf-tools/ksnoop.bpf.c
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index f07ff561..15aa7d75 100644
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--- a/libbpf-tools/ksnoop.bpf.c
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+++ b/libbpf-tools/ksnoop.bpf.c
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@@ -103,7 +103,8 @@ static struct trace *get_trace(struct pt_regs *ctx, bool entry)
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/* get address of last function we called */
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if (last_stack_depth >= 0 &&
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last_stack_depth < FUNC_MAX_STACK_DEPTH)
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- last_ip = func_stack->ips[last_stack_depth];
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+ bpf_probe_read_kernel(&last_ip, sizeof(last_ip),
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+ &func_stack->ips[last_stack_depth]);
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/* push ip onto stack. return will pop it. */
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func_stack->ips[stack_depth] = ip;
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/* mask used in case bounds checks are optimized out */
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@@ -202,7 +203,7 @@ static struct trace *get_trace(struct pt_regs *ctx, bool entry)
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static void output_trace(struct pt_regs *ctx, struct trace *trace)
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{
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- __u16 trace_len;
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+ __u64 trace_len;
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if (trace->buf_len == 0)
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goto skip;
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--
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2.51.0
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@ -1,425 +0,0 @@
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From cdd2ade85acd05c8c7af17b0802163ad6fcb8ec7 Mon Sep 17 00:00:00 2001
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From: Jerome Marchand <jmarchan@redhat.com>
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Date: Tue, 15 Jul 2025 02:25:38 +0200
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Subject: [PATCH] tools/{biolatency,biosnoop,biotop}: use TRACEPOINT_PROBE()
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for tracepoints (#5366)
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When support for block_io_* tracepoint was added, it used
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attach_tracepoint() since it was closer to the existing code that
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attached to kprobes. However, that meant we have to rely on a local
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prototype of the args structure and the tool can be broken by a
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change of the tracepoints format, which is what happens with kernel
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commit aa6ff4eb7c10d ("block: Add ioprio to block_rq tracepoint")
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which added a new argument to block tracepoints.
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Replace attach_tracepoint() by TRACEPOINT_PROBE() so we don't have to
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deal with the tracepoint format changes.
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Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
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---
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tools/biolatency.py | 102 +++++++++++++++++++++++---------------------
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tools/biosnoop.py | 86 +++++++++++++++++++------------------
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tools/biotop.py | 81 ++++++++++++++++++-----------------
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3 files changed, 141 insertions(+), 128 deletions(-)
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diff --git a/tools/biolatency.py b/tools/biolatency.py
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index 3ba1b237..1d3f2d80 100755
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--- a/tools/biolatency.py
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+++ b/tools/biolatency.py
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@@ -87,17 +87,6 @@ typedef struct ext_val {
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u64 count;
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} ext_val_t;
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-struct tp_args {
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- u64 __unused__;
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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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- unsigned int bytes;
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- char rwbs[8];
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- char comm[16];
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- char cmd[];
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-};
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-
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struct start_key {
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dev_t dev;
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u32 _pad;
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@@ -134,16 +123,6 @@ int trace_req_start(struct pt_regs *ctx, struct request *req)
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return __trace_req_start(key);
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}
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-int trace_req_start_tp(struct tp_args *args)
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-{
|
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- struct start_key key = {
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- .dev = args->dev,
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- .sector = args->sector
|
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- };
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-
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- return __trace_req_start(key);
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-}
|
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-
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// output
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static int __trace_req_done(struct start_key key)
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{
|
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@@ -176,8 +155,22 @@ int trace_req_done(struct pt_regs *ctx, struct request *req)
|
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return __trace_req_done(key);
|
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}
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+"""
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+
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+tp_start_text = """
|
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+TRACEPOINT_PROBE(block, START_TP)
|
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+{
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+ struct start_key key = {
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+ .dev = args->dev,
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+ .sector = args->sector
|
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+ };
|
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+
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+ return __trace_req_start(key);
|
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+}
|
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+"""
|
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|
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-int trace_req_done_tp(struct tp_args *args)
|
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+tp_done_text = """
|
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+TRACEPOINT_PROBE(block, DONE_TP)
|
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{
|
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struct start_key key = {
|
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.dev = args->dev,
|
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@@ -266,41 +259,54 @@ bpf_text = bpf_text.replace("STORE", store_str)
|
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if args.ebpf:
|
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exit()
|
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|
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-# load BPF program
|
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-b = BPF(text=bpf_text)
|
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+# Which kprobe/tracepoint to attach to.
|
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+# We can attach to two IO start kprobes but only one of the other types.
|
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+kprobe_start = set()
|
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+tp_start = None
|
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+kprobe_done = None
|
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+tp_done = None
|
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+
|
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if args.queued:
|
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- if BPF.tracepoint_exists("block", "block_io_start"):
|
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- b.attach_tracepoint(tp="block:block_io_start", fn_name="trace_req_start_tp")
|
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- elif BPF.get_kprobe_functions(b'__blk_account_io_start'):
|
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- b.attach_kprobe(event="__blk_account_io_start", fn_name="trace_req_start")
|
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+ if BPF.get_kprobe_functions(b'__blk_account_io_start'):
|
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+ kprobe_start.add("__blk_account_io_start")
|
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elif BPF.get_kprobe_functions(b'blk_account_io_start'):
|
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- b.attach_kprobe(event="blk_account_io_start", fn_name="trace_req_start")
|
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+ kprobe_start.add("blk_account_io_start")
|
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+ elif BPF.tracepoint_exists("block", "block_io_start"):
|
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+ tp_start = "block_io_start"
|
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elif BPF.tracepoint_exists("block", "block_bio_queue"):
|
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- b.attach_tracepoint(tp="block:block_bio_queue", fn_name="trace_req_start_tp")
|
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- else:
|
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- if args.flags:
|
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- # Some flags are accessible in the rwbs field (RAHEAD, SYNC and META)
|
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- # but other aren't. Disable the -F option for tracepoint for now.
|
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- print("ERROR: blk_account_io_start probe not available. Can't use -F.")
|
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- exit()
|
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+ tp_start = "block_bio_queue"
|
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+
|
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else:
|
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if BPF.get_kprobe_functions(b'blk_start_request'):
|
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- b.attach_kprobe(event="blk_start_request", fn_name="trace_req_start")
|
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- b.attach_kprobe(event="blk_mq_start_request", fn_name="trace_req_start")
|
||||
+ kprobe_start.add("blk_start_request")
|
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+ kprobe_start.add("blk_mq_start_request")
|
||||
|
||||
-if BPF.tracepoint_exists("block", "block_io_done"):
|
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- b.attach_tracepoint(tp="block:block_io_done", fn_name="trace_req_done_tp")
|
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-elif BPF.get_kprobe_functions(b'__blk_account_io_done'):
|
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- b.attach_kprobe(event="__blk_account_io_done", fn_name="trace_req_done")
|
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+if BPF.get_kprobe_functions(b'__blk_account_io_done'):
|
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+ kprobe_done = "__blk_account_io_done"
|
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elif BPF.get_kprobe_functions(b'blk_account_io_done'):
|
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- b.attach_kprobe(event="blk_account_io_done", fn_name="trace_req_done")
|
||||
+ kprobe_done = "blk_account_io_done"
|
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+elif BPF.tracepoint_exists("block", "block_io_done"):
|
||||
+ tp_done = "block_io_done"
|
||||
elif BPF.tracepoint_exists("block", "block_rq_complete"):
|
||||
- b.attach_tracepoint(tp="block:block_rq_complete", fn_name="trace_req_done_tp")
|
||||
-else:
|
||||
- if args.flags:
|
||||
- print("ERROR: blk_account_io_done probe not available. Can't use -F.")
|
||||
- exit()
|
||||
+ tp_done = "block_rq_complete"
|
||||
+
|
||||
+if args.flags and (tp_start or tp_done):
|
||||
+ # Some flags are accessible in the rwbs field (RAHEAD, SYNC and META)
|
||||
+ # but other aren't. Disable the -F option for tracepoint for now.
|
||||
+ print("ERROR: blk_account_io_start/done probes not available. Can't use -F.")
|
||||
+ exit()
|
||||
+
|
||||
+if tp_start:
|
||||
+ bpf_text += tp_start_text.replace("START_TP", tp_start)
|
||||
+if tp_done:
|
||||
+ bpf_text += tp_done_text.replace("DONE_TP", tp_done)
|
||||
|
||||
+# load BPF program
|
||||
+b = BPF(text=bpf_text)
|
||||
+for i in kprobe_start:
|
||||
+ b.attach_kprobe(event=i, fn_name="trace_req_start")
|
||||
+if kprobe_done:
|
||||
+ b.attach_kprobe(event=kprobe_done, fn_name="trace_req_done")
|
||||
|
||||
if not args.json:
|
||||
print("Tracing block device I/O... Hit Ctrl-C to end.")
|
||||
diff --git a/tools/biosnoop.py b/tools/biosnoop.py
|
||||
index 045e1f9d..65df90c3 100755
|
||||
--- a/tools/biosnoop.py
|
||||
+++ b/tools/biosnoop.py
|
||||
@@ -65,17 +65,6 @@ struct val_t {
|
||||
char name[TASK_COMM_LEN];
|
||||
};
|
||||
|
||||
-struct tp_args {
|
||||
- u64 __unused__;
|
||||
- dev_t dev;
|
||||
- sector_t sector;
|
||||
- unsigned int nr_sector;
|
||||
- unsigned int bytes;
|
||||
- char rwbs[8];
|
||||
- char comm[16];
|
||||
- char cmd[];
|
||||
-};
|
||||
-
|
||||
struct hash_key {
|
||||
dev_t dev;
|
||||
u32 rwflag;
|
||||
@@ -182,17 +171,6 @@ int trace_pid_start(struct pt_regs *ctx, struct request *req)
|
||||
return __trace_pid_start(key);
|
||||
}
|
||||
|
||||
-int trace_pid_start_tp(struct tp_args *args)
|
||||
-{
|
||||
- struct hash_key key = {
|
||||
- .dev = args->dev,
|
||||
- .rwflag = get_rwflag_tp(args->rwbs),
|
||||
- .sector = args->sector
|
||||
- };
|
||||
-
|
||||
- return __trace_pid_start(key);
|
||||
-}
|
||||
-
|
||||
// time block I/O
|
||||
int trace_req_start(struct pt_regs *ctx, struct request *req)
|
||||
{
|
||||
@@ -284,8 +262,23 @@ int trace_req_completion(struct pt_regs *ctx, struct request *req)
|
||||
|
||||
return __trace_req_completion(ctx, key);
|
||||
}
|
||||
+"""
|
||||
|
||||
-int trace_req_completion_tp(struct tp_args *args)
|
||||
+tp_start_text = """
|
||||
+TRACEPOINT_PROBE(block, block_io_start)
|
||||
+{
|
||||
+ struct hash_key key = {
|
||||
+ .dev = args->dev,
|
||||
+ .rwflag = get_rwflag_tp(args->rwbs),
|
||||
+ .sector = args->sector
|
||||
+ };
|
||||
+
|
||||
+ return __trace_pid_start(key);
|
||||
+}
|
||||
+"""
|
||||
+
|
||||
+tp_done_text = """
|
||||
+TRACEPOINT_PROBE(block, block_io_done)
|
||||
{
|
||||
struct hash_key key = {
|
||||
.dev = args->dev,
|
||||
@@ -296,6 +289,7 @@ int trace_req_completion_tp(struct tp_args *args)
|
||||
return __trace_req_completion(args, key);
|
||||
}
|
||||
"""
|
||||
+
|
||||
if args.queue:
|
||||
bpf_text = bpf_text.replace('##QUEUE##', '1')
|
||||
else:
|
||||
@@ -329,31 +323,41 @@ int trace_req_completion_tp(struct tp_args *args)
|
||||
if args.ebpf:
|
||||
exit()
|
||||
|
||||
-# initialize BPF
|
||||
-b = BPF(text=bpf_text)
|
||||
if BPF.tracepoint_exists("block", "block_io_start"):
|
||||
- b.attach_tracepoint(tp="block:block_io_start", fn_name="trace_pid_start_tp")
|
||||
-elif BPF.get_kprobe_functions(b'__blk_account_io_start'):
|
||||
- b.attach_kprobe(event="__blk_account_io_start", fn_name="trace_pid_start")
|
||||
-elif BPF.get_kprobe_functions(b'blk_account_io_start'):
|
||||
- b.attach_kprobe(event="blk_account_io_start", fn_name="trace_pid_start")
|
||||
+ bpf_text += tp_start_text
|
||||
+ tp_start = True
|
||||
+else:
|
||||
+ tp_start = False
|
||||
+
|
||||
+if BPF.tracepoint_exists("block", "block_io_done"):
|
||||
+ bpf_text += tp_done_text
|
||||
+ tp_done = True
|
||||
else:
|
||||
- print("ERROR: No found any block io start probe/tp.")
|
||||
- exit()
|
||||
+ tp_done = False
|
||||
+
|
||||
+# initialize BPF
|
||||
+b = BPF(text=bpf_text)
|
||||
+if not tp_start:
|
||||
+ if BPF.get_kprobe_functions(b'__blk_account_io_start'):
|
||||
+ b.attach_kprobe(event="__blk_account_io_start", fn_name="trace_pid_start")
|
||||
+ elif BPF.get_kprobe_functions(b'blk_account_io_start'):
|
||||
+ b.attach_kprobe(event="blk_account_io_start", fn_name="trace_pid_start")
|
||||
+ else:
|
||||
+ print("ERROR: No found any block io start probe/tp.")
|
||||
+ exit()
|
||||
|
||||
if BPF.get_kprobe_functions(b'blk_start_request'):
|
||||
b.attach_kprobe(event="blk_start_request", fn_name="trace_req_start")
|
||||
b.attach_kprobe(event="blk_mq_start_request", fn_name="trace_req_start")
|
||||
|
||||
-if BPF.tracepoint_exists("block", "block_io_done"):
|
||||
- b.attach_tracepoint(tp="block:block_io_done", fn_name="trace_req_completion_tp")
|
||||
-elif BPF.get_kprobe_functions(b'__blk_account_io_done'):
|
||||
- b.attach_kprobe(event="__blk_account_io_done", fn_name="trace_req_completion")
|
||||
-elif BPF.get_kprobe_functions(b'blk_account_io_done'):
|
||||
- b.attach_kprobe(event="blk_account_io_done", fn_name="trace_req_completion")
|
||||
-else:
|
||||
- print("ERROR: No found any block io done probe/tp.")
|
||||
- exit()
|
||||
+if not tp_done:
|
||||
+ if BPF.get_kprobe_functions(b'__blk_account_io_done'):
|
||||
+ b.attach_kprobe(event="__blk_account_io_done", fn_name="trace_req_completion")
|
||||
+ elif BPF.get_kprobe_functions(b'blk_account_io_done'):
|
||||
+ b.attach_kprobe(event="blk_account_io_done", fn_name="trace_req_completion")
|
||||
+ else:
|
||||
+ print("ERROR: No found any block io done probe/tp.")
|
||||
+ exit()
|
||||
|
||||
|
||||
# header
|
||||
diff --git a/tools/biotop.py b/tools/biotop.py
|
||||
index 480c37a4..4281b742 100755
|
||||
--- a/tools/biotop.py
|
||||
+++ b/tools/biotop.py
|
||||
@@ -90,17 +90,6 @@ struct val_t {
|
||||
u32 io;
|
||||
};
|
||||
|
||||
-struct tp_args {
|
||||
- u64 __unused__;
|
||||
- dev_t dev;
|
||||
- sector_t sector;
|
||||
- unsigned int nr_sector;
|
||||
- unsigned int bytes;
|
||||
- char rwbs[8];
|
||||
- char comm[16];
|
||||
- char cmd[];
|
||||
-};
|
||||
-
|
||||
struct hash_key {
|
||||
dev_t dev;
|
||||
u32 _pad;
|
||||
@@ -143,16 +132,6 @@ int trace_pid_start(struct pt_regs *ctx, struct request *req)
|
||||
return __trace_pid_start(key);
|
||||
}
|
||||
|
||||
-int trace_pid_start_tp(struct tp_args *args)
|
||||
-{
|
||||
- struct hash_key key = {
|
||||
- .dev = args->dev,
|
||||
- .sector = args->sector
|
||||
- };
|
||||
-
|
||||
- return __trace_pid_start(key);
|
||||
-}
|
||||
-
|
||||
// time block I/O
|
||||
int trace_req_start(struct pt_regs *ctx, struct request *req)
|
||||
{
|
||||
@@ -246,8 +225,22 @@ int trace_req_completion(struct pt_regs *ctx, struct request *req)
|
||||
|
||||
return __trace_req_completion(key);
|
||||
}
|
||||
+"""
|
||||
+
|
||||
+tp_start_text = """
|
||||
+TRACEPOINT_PROBE(block, block_io_start)
|
||||
+{
|
||||
+ struct hash_key key = {
|
||||
+ .dev = args->dev,
|
||||
+ .sector = args->sector
|
||||
+ };
|
||||
+
|
||||
+ return __trace_pid_start(key);
|
||||
+}
|
||||
+"""
|
||||
|
||||
-int trace_req_completion_tp(struct tp_args *args)
|
||||
+tp_done_text = """
|
||||
+TRACEPOINT_PROBE(block, block_io_done)
|
||||
{
|
||||
struct hash_key key = {
|
||||
.dev = args->dev,
|
||||
@@ -272,30 +265,40 @@ int trace_req_completion_tp(struct tp_args *args)
|
||||
else:
|
||||
bpf_text = bpf_text.replace('FILTER_PID', '0')
|
||||
|
||||
-b = BPF(text=bpf_text)
|
||||
if BPF.tracepoint_exists("block", "block_io_start"):
|
||||
- b.attach_tracepoint(tp="block:block_io_start", fn_name="trace_pid_start_tp")
|
||||
-elif BPF.get_kprobe_functions(b'__blk_account_io_start'):
|
||||
- b.attach_kprobe(event="__blk_account_io_start", fn_name="trace_pid_start")
|
||||
-elif BPF.get_kprobe_functions(b'blk_account_io_start'):
|
||||
- b.attach_kprobe(event="blk_account_io_start", fn_name="trace_pid_start")
|
||||
+ bpf_text += tp_start_text
|
||||
+ tp_start = True
|
||||
else:
|
||||
- print("ERROR: No found any block io start probe/tp.")
|
||||
- exit()
|
||||
+ tp_start = False
|
||||
+
|
||||
+if BPF.tracepoint_exists("block", "block_io_done"):
|
||||
+ bpf_text += tp_done_text
|
||||
+ tp_done = True
|
||||
+else:
|
||||
+ tp_done = False
|
||||
+
|
||||
+b = BPF(text=bpf_text)
|
||||
+if not tp_start:
|
||||
+ if BPF.get_kprobe_functions(b'__blk_account_io_start'):
|
||||
+ b.attach_kprobe(event="__blk_account_io_start", fn_name="trace_pid_start")
|
||||
+ elif BPF.get_kprobe_functions(b'blk_account_io_start'):
|
||||
+ b.attach_kprobe(event="blk_account_io_start", fn_name="trace_pid_start")
|
||||
+ else:
|
||||
+ print("ERROR: No found any block io start probe/tp.")
|
||||
+ exit()
|
||||
|
||||
if BPF.get_kprobe_functions(b'blk_start_request'):
|
||||
b.attach_kprobe(event="blk_start_request", fn_name="trace_req_start")
|
||||
b.attach_kprobe(event="blk_mq_start_request", fn_name="trace_req_start")
|
||||
|
||||
-if BPF.tracepoint_exists("block", "block_io_done"):
|
||||
- b.attach_tracepoint(tp="block:block_io_done", fn_name="trace_req_completion_tp")
|
||||
-elif BPF.get_kprobe_functions(b'__blk_account_io_done'):
|
||||
- b.attach_kprobe(event="__blk_account_io_done", fn_name="trace_req_completion")
|
||||
-elif BPF.get_kprobe_functions(b'blk_account_io_done'):
|
||||
- b.attach_kprobe(event="blk_account_io_done", fn_name="trace_req_completion")
|
||||
-else:
|
||||
- print("ERROR: No found any block io done probe/tp.")
|
||||
- exit()
|
||||
+if not tp_done:
|
||||
+ if BPF.get_kprobe_functions(b'__blk_account_io_done'):
|
||||
+ b.attach_kprobe(event="__blk_account_io_done", fn_name="trace_req_completion")
|
||||
+ elif BPF.get_kprobe_functions(b'blk_account_io_done'):
|
||||
+ b.attach_kprobe(event="blk_account_io_done", fn_name="trace_req_completion")
|
||||
+ else:
|
||||
+ print("ERROR: No found any block io done probe/tp.")
|
||||
+ exit()
|
||||
|
||||
# check whether hash table batch ops is supported
|
||||
htab_batch_ops = True if BPF.kernel_struct_has_field(b'bpf_map_ops',
|
||||
--
|
||||
2.50.1
|
||||
|
||||
@ -1,64 +0,0 @@
|
||||
From 4af39db87ffbc8ae8f4e868da7fa076858f0c734 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 6/6] 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 6c966fe58767354225cf01a908ec5a9b78c403dc 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] 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 922a47200c19a0b6e436194712886ee082fd9f0a Mon Sep 17 00:00:00 2001
|
||||
From: Avinesh Kumar <avinesh.kumar@suse.com>
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Date: Fri, 6 Mar 2026 16:00:01 +0100
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Subject: [PATCH 2/2] clang: Add microsoft extensions build flags
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|
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Starting in Linux 6.19, `struct ns_common` fields were moved into an
|
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anonymous nested forward declaration (`struct ns_tree;`) within a
|
||||
union.[1]
|
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This causes Clang to throw a `[-Wmissing-declarations]` warning and
|
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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'
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||||
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
|
||||
|
||||
23
bcc.spec
23
bcc.spec
@ -24,18 +24,15 @@
|
||||
|
||||
|
||||
Name: bcc
|
||||
Version: 0.35.0
|
||||
Release: 3%{?dist}
|
||||
Version: 0.36.1
|
||||
Release: 1%{?dist}
|
||||
Summary: BPF Compiler Collection (BCC)
|
||||
License: Apache-2.0
|
||||
URL: https://github.com/iovisor/bcc
|
||||
Source0: %{url}/archive/v%{version}/%{name}-%{version}.tar.gz
|
||||
Patch0: %%{name}-%%{version}-Revert-Fix-bashreadline-4903.patch
|
||||
Patch1: %%{name}-%%{version}-tools-biolatency-biosnoop-biotop-use-TRACEPOINT_PROB.patch
|
||||
Patch2: %%{name}-%%{version}-Fix-a-build-failure-with-clang21-5369.patch
|
||||
Patch3: %%{name}-%%{version}-libbpf-tools-ksnoop-Fix-two-invalid-access-to-map-va.patch
|
||||
Patch4: %%{name}-%%{version}-libbpf-tools-javagc-Include-usdt.bpf.h-header.patch
|
||||
Patch5: %%{name}-%%{version}-tools-tcpconnect-fix-iov-field-for-DNS-with-Linux-6..patch
|
||||
Patch1: %%{name}-%%{version}-Fix-build-with-LLVM-22.patch
|
||||
Patch2: %%{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
|
||||
@ -135,6 +132,7 @@ Command line libbpf tools for BPF Compiler Collection (BCC)
|
||||
%endif
|
||||
|
||||
%prep
|
||||
# mv bcc-0.36.0/ bcc-0.36.1/
|
||||
%autosetup -p1
|
||||
|
||||
|
||||
@ -268,6 +266,17 @@ cp -a libbpf-tools/tmp-install/bin/* %{buildroot}/%{_sbindir}/
|
||||
%endif
|
||||
|
||||
%changelog
|
||||
* Mon May 18 2026 Jerome Marchand <jmarchan@redhat.com> - 0.36.1-1
|
||||
- Rebase to version 0.36.1 (RHEL-162980)
|
||||
- Rebuild with LLVM 22 (RHEL-140402)
|
||||
- Fix multiple failure introduced by BPF 6.19 update (RHEL-174797)
|
||||
- Fix klockstat (RHEL-174798)
|
||||
- Fix bpf-cpufreq (RHEL-93855)
|
||||
- Fix bpf-syncsnoop (RHEL-93854)
|
||||
- Fix tcpaccept (RHEL-93424)
|
||||
- Fix filegone, kvmexit, netqtop and tcpconnect on s390x (RHEL-75515)
|
||||
- Fix profile on s390x (RHEL-68950)
|
||||
|
||||
* Wed Jan 07 2026 Jerome Marchand <jmarchan@redhat.com> - 0.35.0-3
|
||||
- Rebuild with LLVM 21 (RHEL-108333)
|
||||
|
||||
|
||||
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