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From: Ingo Molnar <mingo@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ard Biesheuvel <ardb@kernel.org>,
	linux-kernel@vger.kernel.org,
	the arch/x86 maintainers <x86@kernel.org>,
	David Woodhouse <dwmw2@infradead.org>,
	Peter Zijlstra <peterz@infradead.org>,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: [GIT PULL] x86 fix
Date: Mon, 27 Jan 2025 16:54:20 +0100	[thread overview]
Message-ID: <Z5esLBCF8N3lVRRs@gmail.com> (raw)
In-Reply-To: <Z5dd5TSUuTT_qNrf@gmail.com>

Linus,

Please pull the latest x86/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-2025-01-27

   # HEAD: fb1102a09a3b6710ac1e033690f0283696dc94dc Revert "x86/boot: Reject absolute references in .head.text"

Fix a build regression on certain config and build environment
combinations that generate absolute references to symbols.

 Thanks,

	Ingo

------------------>
Ingo Molnar (1):
      Revert "x86/boot: Reject absolute references in .head.text"


 arch/x86/tools/relocs.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index e937be979ec8..27441e5863b2 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -841,10 +841,10 @@ static int is_percpu_sym(ElfW(Sym) *sym, const char *symname)
 static int do_reloc64(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym,
 		      const char *symname)
 {
-	int headtext = !strcmp(sec_name(sec->shdr.sh_info), ".head.text");
 	unsigned r_type = ELF64_R_TYPE(rel->r_info);
 	ElfW(Addr) offset = rel->r_offset;
 	int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname);
+
 	if (sym->st_shndx == SHN_UNDEF)
 		return 0;
 
@@ -900,12 +900,6 @@ static int do_reloc64(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym,
 			break;
 		}
 
-		if (headtext) {
-			die("Absolute reference to symbol '%s' not permitted in .head.text\n",
-			    symname);
-			break;
-		}
-
 		/*
 		 * Relocation offsets for 64 bit kernels are output
 		 * as 32 bits and sign extended back to 64 bits when

  reply	other threads:[~2025-01-27 15:54 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-21  7:28 [GIT PULL] x86/cleanups for v6.14 Ingo Molnar
2025-01-21  7:34 ` Ingo Molnar
2025-01-21 11:31   ` Borislav Petkov
2025-01-21 19:40 ` pr-tracker-bot
2025-01-21 21:29 ` [GIT PULL] x86/boot enhancements " Ingo Molnar
2025-01-24 14:06   ` pr-tracker-bot
2025-01-27  3:18   ` Linus Torvalds
2025-01-27 10:20     ` [PATCH] Revert "x86/boot: Reject absolute references in .head.text Ingo Molnar
2025-01-27 15:54       ` Ingo Molnar [this message]
2025-01-27 17:10         ` [GIT PULL] x86 fix Linus Torvalds
2025-01-28 22:19           ` Ingo Molnar
2025-01-28 22:22             ` Ingo Molnar
2025-01-28 22:39             ` pr-tracker-bot
2025-01-27 10:25     ` [tip: x86/urgent] Revert "x86/boot: Reject absolute references in .head.text" tip-bot2 for Ingo Molnar
2025-01-27 11:12     ` [GIT PULL] x86/boot enhancements for v6.14 Ard Biesheuvel
2025-01-27 15:51       ` Ingo Molnar
  -- strict thread matches above, loose matches on Subject: below --
2026-03-15  3:36 [GIT PULL] x86 fix Ingo Molnar
2026-03-15 18:47 ` pr-tracker-bot
2026-01-11 10:32 Ingo Molnar
2026-01-12 19:38 ` pr-tracker-bot
2026-01-02 13:47 Ingo Molnar
2026-01-02 20:18 ` pr-tracker-bot
2025-09-20  8:28 Ingo Molnar
2025-09-20 17:02 ` pr-tracker-bot
2025-05-11  7:53 Ingo Molnar
2025-05-11 18:40 ` pr-tracker-bot
2025-05-11 18:40 ` pr-tracker-bot
2025-05-04  7:36 Ingo Molnar
2025-05-04 15:23 ` pr-tracker-bot
2025-03-14  9:14 Ingo Molnar
2025-03-14 20:14 ` pr-tracker-bot
2025-02-08  9:33 Ingo Molnar
2025-02-08 20:07 ` pr-tracker-bot
2023-09-02 10:24 Ingo Molnar
2023-09-02 16:13 ` pr-tracker-bot
2022-08-13 10:40 Ingo Molnar
2022-08-13 21:48 ` pr-tracker-bot
2020-08-02 19:17 Ingo Molnar
2020-08-02 20:15 ` pr-tracker-bot
2020-04-02  9:51 Ingo Molnar
2020-04-02 22:00 ` Linus Torvalds
2020-04-02 22:45 ` pr-tracker-bot
2020-03-24  9:06 Ingo Molnar
2020-03-24 17:15 ` pr-tracker-bot
2019-12-17 11:58 Ingo Molnar
2019-12-17 19:20 ` pr-tracker-bot
2019-09-28 12:42 Ingo Molnar
2019-09-28 20:50 ` pr-tracker-bot
2019-07-14 11:32 Ingo Molnar
2019-07-14 18:45 ` pr-tracker-bot
2019-05-05 11:00 Ingo Molnar
2019-05-05 22:10 ` pr-tracker-bot
2018-07-21 12:55 Ingo Molnar
2016-07-25 15:54 Ingo Molnar
2015-05-15  7:26 Ingo Molnar
2015-03-28 13:58 Ingo Molnar
2015-02-06 18:41 Ingo Molnar
2014-12-19 12:16 Ingo Molnar
2014-04-19 10:58 Ingo Molnar
2013-11-19 15:48 Ingo Molnar
2013-09-28 18:23 Ingo Molnar
2013-07-10 14:32 Ingo Molnar
2012-10-23 11:06 Ingo Molnar
2012-10-23 15:00 ` H. Peter Anvin
2012-10-23 15:17   ` Borislav Petkov
2011-12-20 19:30 Ingo Molnar
2011-10-13  9:00 Ingo Molnar
2011-09-30 18:22 Ingo Molnar
2011-09-30 18:59 ` Jeremy Fitzhardinge
2011-09-30 19:44 ` Thomas Gleixner
2011-07-23  8:43 Ingo Molnar
2011-02-07 15:03 Ingo Molnar
2010-12-28 22:27 Ingo Molnar
2010-12-23 13:00 Ingo Molnar
2010-12-08  7:51 Ingo Molnar
2010-10-30 18:26 Ingo Molnar
2009-09-27  8:02 Ingo Molnar
2009-08-10 18:08 Ingo Molnar
2009-06-29  8:36 Ingo Molnar
2009-03-10 18:25 [git pull] " Ingo Molnar
2009-02-28 13:02 i915 needs pgprot_writecombine() and is_io_mapping_posible() Theodore Ts'o
2009-02-28 13:34 ` [git pull] x86 fix Ingo Molnar
2009-01-13  1:17 Ingo Molnar
2008-11-07 16:30 Ingo Molnar
2008-10-04 14:55 Ingo Molnar
2008-07-01 19:57 Ingo Molnar
2008-04-26 19:47 Ingo Molnar
2008-04-26 20:15 ` Harvey Harrison

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