From: Peter Zijlstra <peterz@infradead.org>
To: x86@kernel.org, jpoimboe@redhat.com, linux@weissschuh.net
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org
Subject: [PATCH 10/10][HACK] objtool: Shrink reloc
Date: Wed, 08 Feb 2023 18:18:06 +0100 [thread overview]
Message-ID: <20230208172245.922980544@infradead.org> (raw)
In-Reply-To: 20230208171756.898991570@infradead.org
Glorious hack, do not merge. Good for another ~850M of allyesconfig
savings.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
tools/objtool/include/objtool/elf.h | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
--- a/tools/objtool/include/objtool/elf.h
+++ b/tools/objtool/include/objtool/elf.h
@@ -71,17 +71,23 @@ struct reloc {
union {
GElf_Rela rela;
GElf_Rel rel;
+ struct {
+ u64 offset;
+ u64 __bar;
+ s64 addend;
+ };
};
struct section *sec;
struct symbol *sym;
struct list_head sym_reloc_entry;
- unsigned long offset;
- unsigned int type;
- s64 addend;
int idx;
+ unsigned short type;
bool jump_table_start;
};
+static_assert(offsetof(struct reloc, rela.r_offset) == offsetof(struct reloc, offset));
+static_assert(offsetof(struct reloc, rela.r_addend) == offsetof(struct reloc, addend));
+
#define ELF_HASH_BITS 20
struct elf {
next prev parent reply other threads:[~2023-02-08 17:24 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-08 17:17 [PATCH 00/10] objtool: Honey, I shrunk the instruction Peter Zijlstra
2023-02-08 17:17 ` [PATCH 01/10] objtool: Change arch_decode_instruction() signature Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:17 ` [PATCH 02/10] objtool: Make instruction::stack_ops a single-linked list Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:17 ` [PATCH 03/10] objtool: Make instruction::alts " Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:18 ` [PATCH 04/10] objtool: Shrink instruction::{type,visited} Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:18 ` [PATCH 05/10] objtool: Remove instruction::reloc Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:18 ` [PATCH 06/10] objtool: Union instruction::{call_dest,jump_table} Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:18 ` [PATCH 07/10] objtool: Fix overlapping alternatives Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:18 ` [PATCH 08/10] x86: Fix FILL_RETURN_BUFFER Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:18 ` [PATCH 09/10] objtool: Remove instruction::list Peter Zijlstra
2023-02-13 11:10 ` [tip: objtool/core] " tip-bot2 for Peter Zijlstra
2023-02-23 8:32 ` tip-bot2 for Peter Zijlstra
2023-02-08 17:18 ` Peter Zijlstra [this message]
2023-02-08 18:35 ` [PATCH 00/10] objtool: Honey, I shrunk the instruction Nathan Chancellor
2023-02-08 20:22 ` Damian Tometzki
2023-02-09 10:22 ` Peter Zijlstra
2023-02-09 10:56 ` Damian Tometzki
2023-02-09 19:57 ` Josh Poimboeuf
2023-02-10 8:59 ` Peter Zijlstra
2023-02-10 13:47 ` [PATCH 00/10] objtool: Honey, I shrunk the instruction^Wreloc Peter Zijlstra
2023-02-10 1:50 ` [PATCH 00/10] objtool: Honey, I shrunk the instruction Thomas Weißschuh
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