From: Jeff Johnson <jjohnson@codeaurora.org>
To: linux-kbuild@vger.kernel.org
Cc: psodagud@quicinc.com, eberman@quicinc.com,
Mahesh Kumar Kalikot Veetil <mkalikot@codeaurora.org>,
Jeff Johnson <jjohnson@codeaurora.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] kbuild: simplify cmd_mod
Date: Tue, 12 Jan 2021 17:18:50 -0800 [thread overview]
Message-ID: <1610500731-30960-1-git-send-email-jjohnson@codeaurora.org> (raw)
From: Mahesh Kumar Kalikot Veetil <mkalikot@codeaurora.org>
Modules with a large number of compilation units can exceed execv
argument list resulting in E2BIG (Argument list too long) error.
Fix this by replacing shell 'echo > file' into a more native
$(file op filename[,text]) option.
Signed-off-by: Mahesh Kumar Kalikot Veetil <mkalikot@codeaurora.org>
Signed-off-by: Jeff Johnson <jjohnson@codeaurora.org>
---
scripts/Makefile.build | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 4c058f1..252b7d2 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -279,10 +279,11 @@ $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
$(call if_changed_rule,cc_o_c)
$(call cmd,force_checksrc)
-cmd_mod = { \
- echo $(if $($*-objs)$($*-y)$($*-m), $(addprefix $(obj)/, $($*-objs) $($*-y) $($*-m)), $(@:.mod=.o)); \
- $(undefined_syms) echo; \
- } > $@
+cmd_mod = $(file >$@,\
+ $(if $($*-objs)$($*-y)$($*-m), \
+ $(addprefix $(obj)/, $($*-objs) $($*-y) $($*-m)), \
+ $(@:.mod=.o))) \
+ $(undefined_syms) echo >> $@
$(obj)/%.mod: $(obj)/%.o FORCE
$(call if_changed,mod)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next reply other threads:[~2021-01-13 1:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-13 1:18 Jeff Johnson [this message]
2021-01-13 1:18 ` [PATCH 2/2] kbuild: handle excessively long argument lists Jeff Johnson
2021-01-14 21:07 ` Nick Desaulniers
2021-01-14 21:32 ` jjohnson
2021-01-14 21:49 ` [PATCH v2 " Jeff Johnson
2021-01-15 1:00 ` Nick Desaulniers
2021-01-15 1:25 ` Masahiro Yamada
2021-01-15 1:12 ` Masahiro Yamada
2021-01-15 20:15 ` jjohnson
2021-01-15 21:53 ` Masahiro Yamada
2021-01-19 20:02 ` mkalikot
2021-01-15 1:07 ` [PATCH 1/2] kbuild: simplify cmd_mod Nick Desaulniers
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