linux-kernel - [PATCH v1 09/14] DCE/DSE: inhibit .size directive for SHF

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Message-Id: <7807078d4612beaa3f450df9f3f3cf70b2bccb4a.1699025537.git.tanyuan@tinylab.org>
Date:   Sat,  4 Nov 2023 00:01:55 +0800
From:   Yuan Tan <tanyuan@...ylab.org>
To:     falcon@...ylab.org, arnd@...db.de, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-riscv@...ts.infradead.org,
        luc.vanoostenryck@...il.com, linux-sparse@...r.kernel.org
Cc:     linux@...ssschuh.net, palmer@...osinc.com,
        paul.walmsley@...ive.com, paulburton@...nel.org,
        paulmck@...nel.org, tim.bird@...y.com, tsbogend@...ha.franken.de,
        w@....eu, tanyuan@...ylab.org, i@...kray.me
Subject: [PATCH v1 09/14] DCE/DSE: inhibit .size directive for SHF_GROUP

.size directive fails in some functions with SHF_GROUP, this is not
really required for normal building, inhibit it to silence the compiling
failures with SHF_GROUP.

Signed-off-by: Yuan Tan <tanyuan@...ylab.org>
Signed-off-by: Zhangjin Wu <falcon@...ylab.org>
---
 Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Makefile b/Makefile
index a4e522b747cb..f67b6e8d2c45 100644
--- a/Makefile
+++ b/Makefile
@@ -936,6 +936,9 @@ endif
 # `rustc`'s `-Zfunction-sections` applies to data too (as of 1.59.0).
 ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
 KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections
+ifdef CONFIG_SECTION_SHF_GROUP_SUPPORT
+KBUILD_CFLAGS_KERNEL += -finhibit-size-directive
+endif
 KBUILD_RUSTFLAGS_KERNEL += -Zfunction-sections=y
 LDFLAGS_vmlinux += --gc-sections
 ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION_DEBUG
-- 
2.34.1