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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Bill Wendling <morbo@google.com>, Yonghong Song <yhs@fb.com>,
	Jiri Olsa <jolsa@kernel.org>
Cc: dwarves@vger.kernel.org, "Alexei Starovoitov" <ast@kernel.org>,
	"Andrii Nakryiko" <andrii@kernel.org>, bpf <bpf@vger.kernel.org>,
	"David Blaikie" <dblaikie@gmail.com>,
	"Fāng-ruì Sòng" <maskray@google.com>,
	kernel-team@fb.com, "Nick Desaulniers" <ndesaulniers@google.com>
Subject: Re: [PATCH dwarves 0/2] dwarf_loader: improve cus__merging_cu()
Date: Tue, 6 Apr 2021 14:07:26 -0300	[thread overview]
Message-ID: <YGyVTnBCWan8zJ8Q@kernel.org> (raw)
In-Reply-To: <YGyUbX/HRBdGjH3i@kernel.org>

Em Tue, Apr 06, 2021 at 02:03:41PM -0300, Arnaldo Carvalho de Melo escreveu:
> Sorry, I forgot to use clang on this no-lto build... doing it now with:
> 
> [acme@five bpf]$ grep LTO ../build/bpf_clang_no_lto/.config
> CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
> CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
> CONFIG_HAS_LTO_CLANG=y
> CONFIG_LTO_NONE=y
> # CONFIG_LTO_CLANG_FULL is not set
> # CONFIG_LTO_CLANG_THIN is not set
> CONFIG_HID_WALTOP=m
> [acme@five bpf]$
> [acme@five bpf]$ make -j28 LLVM=1 LLVM_IAS=1 O=../build/bpf_clang_no_lto/ vmlinux


Works:

[acme@five bpf]$ make -j28 LLVM=1 LLVM_IAS=1 O=../build/bpf_clang_no_lto/ vmlinux
  CC      drivers/acpi/acpica/utxfmutex.o
  AR      fs/built-in.a
  AR      drivers/acpi/acpica/built-in.a
  AR      drivers/acpi/built-in.a
  AR      drivers/md/built-in.a
  AR      drivers/built-in.a
  GEN     .version
  CHK     include/generated/compile.h
  LD      vmlinux.o
  MODPOST vmlinux.symvers
  MODINFO modules.builtin.modinfo
  GEN     modules.builtin
  LD      .tmp_vmlinux.btf
  BTF     .btf.vmlinux.bin.o
  LD      .tmp_vmlinux.kallsyms1
  KSYMS   .tmp_vmlinux.kallsyms1.S
  AS      .tmp_vmlinux.kallsyms1.S
  LD      .tmp_vmlinux.kallsyms2
  KSYMS   .tmp_vmlinux.kallsyms2.S
  AS      .tmp_vmlinux.kallsyms2.S
  LD      vmlinux
  BTFIDS  vmlinux
  SORTTAB vmlinux
  SYSMAP  System.map
make[1]: Leaving directory '/home/acme/git/build/bpf_clang_no_lto'
[acme@five bpf]$ grep LTO ../build/bpf_clang_thin_lto/.config
CONFIG_LTO=y
CONFIG_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_HAS_LTO_CLANG=y
# CONFIG_LTO_NONE is not set
# CONFIG_LTO_CLANG_FULL is not set
CONFIG_LTO_CLANG_THIN=y
CONFIG_HID_WALTOP=m
[acme@five bpf]$

  reply	other threads:[~2021-04-06 17:07 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01  2:58 [PATCH dwarves 0/2] dwarf_loader: improve cus__merging_cu() Yonghong Song
2021-04-01  2:58 ` [PATCH dwarves 1/2] dwarf_loader: check .debug_abbrev for cross-cu references Yonghong Song
2021-04-01 18:52   ` Nick Desaulniers
2021-04-01 19:36     ` Arnaldo
2021-04-01 20:54       ` Yonghong Song
2021-04-01  2:58 ` [PATCH dwarves 2/2] dwarf_loader: check .notes section for lto build info Yonghong Song
2021-04-01 12:59 ` [PATCH dwarves 0/2] dwarf_loader: improve cus__merging_cu() Arnaldo Carvalho de Melo
2021-04-01 18:50 ` Nick Desaulniers
2021-04-01 19:35 ` Bill Wendling
2021-04-01 20:56   ` Bill Wendling
2021-04-01 21:59     ` Yonghong Song
2021-04-02 19:44       ` Bill Wendling
2021-04-06 13:22         ` Arnaldo Carvalho de Melo
2021-04-06 13:23           ` Arnaldo Carvalho de Melo
2021-04-06 16:40           ` Arnaldo Carvalho de Melo
2021-04-06 16:55             ` Arnaldo Carvalho de Melo
2021-04-06 16:59               ` Arnaldo Carvalho de Melo
2021-04-06 17:03                 ` Arnaldo Carvalho de Melo
2021-04-06 17:07                   ` Arnaldo Carvalho de Melo [this message]
2021-04-06 17:25                     ` Arnaldo Carvalho de Melo
2021-04-06 17:23                   ` Yonghong Song
2021-04-06 17:34                     ` Arnaldo Carvalho de Melo
2021-04-06 17:36                       ` Arnaldo Carvalho de Melo
2021-04-06 17:48                     ` Yonghong Song
2021-04-06 18:03                       ` Arnaldo Carvalho de Melo
2021-04-06 18:04                         ` Arnaldo Carvalho de Melo
2021-04-06 18:31                           ` Nick Desaulniers
2021-04-06 18:17                         ` David Blaikie
2021-04-06 18:20                           ` Arnaldo Carvalho de Melo
2021-04-06 18:22                           ` Fāng-ruì Sòng
2021-04-06 17:09     ` Jiri Olsa
2021-04-02 13:27   ` Arnaldo Carvalho de Melo
2021-04-02 14:34     ` Yonghong Song

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