From: Borislav Petkov <bp@alien8.de>
To: Fangrui Song <maskray@google.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>,
Arvind Sankar <nivedita@alum.mit.edu>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
clang-built-linux@googlegroups.com, Michael Matz <matz@suse.de>
Subject: Re: [PATCH 2/2] x86/boot/compressed: Remove unnecessary sections from bzImage
Date: Sat, 22 Feb 2020 08:42:54 +0100 [thread overview]
Message-ID: <20200222074254.GB11284@zn.tnic> (raw)
In-Reply-To: <20200222072144.asqaxlv364s6ezbv@google.com>
On Fri, Feb 21, 2020 at 11:21:44PM -0800, Fangrui Song wrote:
> In GNU ld, it seems that .shstrtab .symtab and .strtab are special
> cased. Neither the input section description *(.shstrtab) nor *(*)
> discards .shstrtab . I feel that this is a weird case (probably even a bug)
> that lld should not implement.
Ok, forget what the tools do for a second: why is .shstrtab special and
why would one want to keep it?
Because one still wants to know what the section names of an object are
or other tools need it or why?
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2020-02-22 7:43 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 15:02 [PATCH 1/2] x86/boot/compressed/64: Remove .bss/.pgtable from bzImage Arvind Sankar
2020-01-09 15:02 ` [PATCH 2/2] x86/boot/compressed: Remove unnecessary sections " Arvind Sankar
2020-02-06 11:44 ` Kees Cook
2020-02-19 16:55 ` [tip: x86/boot] " tip-bot2 for Arvind Sankar
2020-02-22 5:08 ` [PATCH 2/2] " Nathan Chancellor
2020-02-22 6:55 ` Borislav Petkov
2020-02-22 7:02 ` Nathan Chancellor
2020-02-22 7:21 ` Fangrui Song
2020-02-22 7:42 ` Nathan Chancellor
2020-02-22 15:37 ` Arvind Sankar
2020-02-22 16:44 ` Arvind Sankar
2020-02-22 17:18 ` [PATCH] x86/boot/compressed: Fix compressed kernel linking with lld Arvind Sankar
2020-02-22 18:14 ` Nathan Chancellor
2020-02-22 18:58 ` Fangrui Song
2020-02-22 20:17 ` Arvind Sankar
2020-02-22 21:01 ` Fangrui Song
2020-02-22 23:33 ` Nick Desaulniers
2020-02-22 23:57 ` Arvind Sankar
2020-02-23 19:37 ` [PATCH 0/2] Stop generating .eh_frame sections Arvind Sankar
2020-02-24 4:15 ` Nathan Chancellor
2020-02-24 20:49 ` Nick Desaulniers
2020-02-24 21:53 ` Arvind Sankar
2020-02-24 22:01 ` Nick Desaulniers
2020-02-23 19:37 ` [PATCH 1/2] arch/x86: Use -fno-asynchronous-unwind-tables to suppress " Arvind Sankar
2020-02-24 20:33 ` Nick Desaulniers
2020-02-24 21:05 ` Arvind Sankar
2020-02-24 21:12 ` Fangrui Song
2020-02-24 21:17 ` Nick Desaulniers
2020-02-24 21:22 ` Nick Desaulniers
2020-02-23 19:37 ` [PATCH 2/2] arch/x86: Drop unneeded linker script discard of .eh_frame Arvind Sankar
2020-02-24 20:45 ` Nick Desaulniers
2020-02-24 21:33 ` Arvind Sankar
2020-02-24 21:58 ` Nick Desaulniers
2020-02-24 23:21 ` [PATCH v2 0/2] Stop generating .eh_frame sections Arvind Sankar
2020-02-24 23:21 ` [PATCH v2 1/2] arch/x86: Use -fno-asynchronous-unwind-tables to suppress " Arvind Sankar
2020-02-24 23:28 ` Nathan Chancellor
2020-02-24 23:30 ` Nick Desaulniers
2020-02-25 4:10 ` Kees Cook
2020-02-25 16:53 ` [tip: x86/boot] x86/*/Makefile: " tip-bot2 for Arvind Sankar
2020-02-24 23:21 ` [PATCH v2 2/2] arch/x86: Drop unneeded linker script discard of .eh_frame Arvind Sankar
2020-02-24 23:28 ` Nathan Chancellor
2020-02-24 23:33 ` Nick Desaulniers
2020-02-25 4:11 ` Kees Cook
2020-02-25 16:53 ` [tip: x86/boot] x86/vmlinux: " tip-bot2 for Arvind Sankar
2020-02-23 22:00 ` [PATCH] x86/boot/compressed: Fix compressed kernel linking with lld Kees Cook
2020-02-24 6:06 ` Fangrui Song
2020-02-22 17:29 ` [PATCH 2/2] x86/boot/compressed: Remove unnecessary sections from bzImage Borislav Petkov
2020-02-22 17:53 ` Arvind Sankar
2020-02-22 7:42 ` Borislav Petkov [this message]
2020-02-22 16:22 ` Arvind Sankar
2020-02-22 23:20 ` Nick Desaulniers
2020-02-24 13:28 ` Michael Matz
2020-02-24 20:51 ` Nick Desaulniers
2020-02-24 21:28 ` Fangrui Song
2020-02-24 21:48 ` Arvind Sankar
2020-02-24 22:17 ` Fangrui Song
2020-02-24 22:43 ` Arvind Sankar
2020-02-24 22:50 ` Fangrui Song
2020-02-24 23:08 ` Arvind Sankar
2020-02-25 5:35 ` --orphan-handling=warn (was Re: [PATCH 2/2] x86/boot/compressed: Remove unnecessary sections) " Kees Cook
2020-02-25 16:42 ` --orphan-handling=warn Arvind Sankar
2020-02-25 18:29 ` --orphan-handling=warn Arvind Sankar
2020-02-25 19:42 ` --orphan-handling=warn Kees Cook
2020-02-25 20:37 ` --orphan-handling=warn Nick Desaulniers
2020-02-25 22:02 ` --orphan-handling=warn Kees Cook
2020-02-26 1:56 ` --orphan-handling=warn Fangrui Song
2020-02-26 5:35 ` --orphan-handling=warn Kees Cook
2020-02-26 19:11 ` --orphan-handling=warn Kristen Carlson Accardi
2020-02-26 19:26 ` --orphan-handling=warn Nick Desaulniers
2020-02-24 11:37 ` [tip: x86/boot] x86/boot/compressed: Remove .eh_frame section from bzImage tip-bot2 for Arvind Sankar
2020-02-24 16:41 ` Arvind Sankar
2020-02-24 17:16 ` Borislav Petkov
2020-02-24 17:28 ` Arvind Sankar
2020-02-05 16:29 ` [PATCH 1/2] x86/boot/compressed/64: Remove .bss/.pgtable " Arvind Sankar
2020-02-18 18:03 ` Arvind Sankar
2020-02-19 12:09 ` Borislav Petkov
2020-02-19 17:57 ` Arvind Sankar
2020-02-19 18:22 ` Borislav Petkov
2020-02-19 19:06 ` Arvind Sankar
2020-02-06 11:18 ` Kees Cook
2020-02-19 16:55 ` [tip: x86/boot] " tip-bot2 for Arvind Sankar
2020-04-05 15:42 ` [PATCH 1/2] " Sergey Shatunov
2020-04-05 23:18 ` Arvind Sankar
2020-04-06 0:00 ` Sergey Shatunov
2020-04-06 3:51 ` Arvind Sankar
2020-04-06 7:32 ` Ard Biesheuvel
2020-04-06 8:47 ` Borislav Petkov
2020-04-06 9:11 ` Ard Biesheuvel
2020-04-06 11:20 ` Borislav Petkov
2020-04-06 13:22 ` Arvind Sankar
2020-04-06 13:29 ` Ard Biesheuvel
2020-04-06 16:01 ` Arvind Sankar
2020-04-06 16:22 ` Ard Biesheuvel
2020-04-06 16:52 ` Arvind Sankar
2020-04-06 16:59 ` Ard Biesheuvel
2020-04-06 18:06 ` [PATCH 1/2] efi/x86: Move efi stub globals from .bss to .data Arvind Sankar
2020-04-06 18:06 ` [PATCH 2/2] efi/x86: Always relocate the kernel for EFI handover entry Arvind Sankar
2020-04-14 8:20 ` [tip: efi/urgent] " tip-bot2 for Arvind Sankar
2020-04-06 18:29 ` [PATCH 1/2] efi/x86: Move efi stub globals from .bss to .data Ard Biesheuvel
2020-04-08 7:43 ` Dave Young
2020-04-08 7:49 ` Ard Biesheuvel
2020-04-09 14:39 ` Arvind Sankar
2020-04-09 14:47 ` Ard Biesheuvel
2020-04-09 16:35 ` Arvind Sankar
2020-04-10 14:47 ` Arvind Sankar
2020-04-10 15:26 ` Ard Biesheuvel
2020-04-14 14:57 ` Daniel Kiper
2020-04-10 11:26 ` Thomas Meyer
2020-04-10 14:38 ` Arvind Sankar
2020-04-11 8:50 ` Thomas Meyer
2020-04-14 8:20 ` [tip: efi/urgent] " tip-bot2 for Arvind Sankar
2020-04-06 17:21 ` [PATCH 1/2] x86/boot/compressed/64: Remove .bss/.pgtable from bzImage Borislav Petkov
2020-04-06 8:44 ` Ard Biesheuvel
2020-04-06 12:36 ` Sergey Shatunov
2020-04-06 13:20 ` Ard Biesheuvel
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