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AKwUvBwmVgQ7wfmTfIbTXT3eN39vuTH1F7Ho8+CNznxZrr/IcevQs6Ys2yFWHQUnEL5QbnedTDH8hT4ybmo1uAE=@vger.kernel.org X-Gm-Message-State: AFuF++nPYoew1A7ESyICzHgu5HTTjED/jBPtDZtU20j6ylcnMeGvzSGJ PUOFfYyxITTycxUxDD1rtit3faJsJrsSbyvJFagfn+UUNHRw6cMYoYEs1mfkCZ95VL75fvpb9fV 5I0NNnyQQzw== X-Received: from dybkf17.prod.google.com ([2002:a05:7301:3a91:b0:339:770d:7243]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:3b8d:b0:398:b426:ca4b with SMTP id 98e67ed59e1d1-39b2624f10amr54179219a91.22.1788986505882; Wed, 09 Sep 2026 13:41:45 -0700 (PDT) Date: Wed, 9 Sep 2026 13:41:22 -0700 In-Reply-To: <20260909204122.1993010-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260909204122.1993010-1-irogers@google.com> X-Mailer: git-send-email 2.55.0.1003.g10538fe699-goog Message-ID: <20260909204122.1993010-5-irogers@google.com> Subject: [PATCH v2 4/4] objtool: Add explicitly sequenced -lzstd to libopcodes fallback From: Ian Rogers To: Quentin Monnet , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Martin KaFai Lau , Song Liu , Yonghong Song , Jiri Olsa , Emil Tsalapatis , Ihor Solodrai , Josh Poimboeuf , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Ian Rogers , Adrian Hunter , James Clark , Nick Terrell , David Sterba , Tomas Glozar , Costa Shulyupin , Michael Jeanson , Dmitrii Dolgov <9erthalion6@gmail.com>, Leo Yan , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: bpf@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Distributions like Fedora currently ship a statically compiled binutils libbfd (an intrinsic dependency of libopcodes) that internally utilizes zstd to decompress sections. Because objtool resolves host dependencies sequentially via a manual HOSTCC shell loop, build failures will occur (e.g. undefined reference to 'ZSTD_decompress') unless the loop probes for it. Add the '-lopcodes -lbfd -liberty -lz -lzstd' combination to the fallback chain, assuring successful compilation on hosts packaging static binutils. Signed-off-by: Ian Rogers Assisted-by: Antigravity:gemini-3.1-pro --- tools/objtool/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile index a4484fd22a96..141b957c566b 100644 --- a/tools/objtool/Makefile +++ b/tools/objtool/Makefile @@ -88,7 +88,8 @@ LIBOPCODES_LIBS := $(shell \ for libs in "-lopcodes" \ "-lopcodes -lbfd" \ "-lopcodes -lbfd -liberty" \ - "-lopcodes -lbfd -liberty -lz"; do \ + "-lopcodes -lbfd -liberty -lz" \ + "-lopcodes -lbfd -liberty -lz -lzstd"; do \ echo 'extern void disassemble_init_for_target(void *);' \ 'int main(void) { disassemble_init_for_target(0); return 0; }' | \ $(HOSTCC) -xc - -o /dev/null $$libs 2>/dev/null && \ -- 2.55.0.1003.g10538fe699-goog