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kbuild: fix make headers_install when path is too long

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If headers_install is executed from a deep/long directory structure, the
shell's maximum argument length can be execeeded, which breaks the operation
with:

| make[2]: execvp: /bin/sh: Argument list too long
| make[2]: ***

Instead of passing each files name with the entire path, I give only the file
name without the source path and give this path as a new argument to
headers_install.pl.

Because there is three possible paths, I have tree input-files list, one per
path.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Tested-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Nicolas Dichtel
2013-04-29 14:15:51 +02:00
committed by Michal Marek
parent f722406faa
commit c0ff68f161
2 changed files with 19 additions and 8 deletions
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20
scripts/Makefile.headersinst
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@@ -47,18 +47,24 @@ header-y := $(filter-out $(generic-y), $(header-y))
all-files := $(header-y) $(genhdr-y) $(wrapper-files)
output-files := $(addprefix $(installdir)/, $(all-files))
input-files := $(foreach hdr, $(header-y), \
input-files1 := $(foreach hdr, $(header-y), \
$(if $(wildcard $(srcdir)/$(hdr)), \
$(wildcard $(srcdir)/$(hdr)), \
$(wildcard $(srcdir)/$(hdr))) \
)
input-files1-name := $(notdir $(input-files1))
input-files2 := $(foreach hdr, $(header-y), \
$(if $(wildcard $(srcdir)/$(hdr)),, \
$(if $(wildcard $(oldsrcdir)/$(hdr)), \
$(wildcard $(oldsrcdir)/$(hdr)), \
$(error Missing UAPI file $(srcdir)/$(hdr))) \
)) \
$(foreach hdr, $(genhdr-y), \
))
input-files2-name := $(notdir $(input-files2))
input-files3 := $(foreach hdr, $(genhdr-y), \
$(if $(wildcard $(gendir)/$(hdr)), \
$(wildcard $(gendir)/$(hdr)), \
$(error Missing generated UAPI file $(gendir)/$(hdr)) \
))
input-files3-name := $(notdir $(input-files3))
# Work out what needs to be removed
oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
@@ -72,7 +78,9 @@ printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
file$(if $(word 2, $(all-files)),s))
cmd_install = \
$(CONFIG_SHELL) $< $(installdir) $(input-files); \
$(CONFIG_SHELL) $< $(installdir) $(srcdir) $(input-files1-name); \
$(CONFIG_SHELL) $< $(installdir) $(oldsrcdir) $(input-files2-name); \
$(CONFIG_SHELL) $< $(installdir) $(gendir) $(input-files3-name); \
for F in $(wrapper-files); do \
echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \
done; \
@@ -98,7 +106,7 @@ __headersinst: $(subdirs) $(install-file)
@:
targets += $(install-file)
$(install-file): scripts/headers_install.sh $(input-files) FORCE
$(install-file): scripts/headers_install.sh $(input-files1) $(input-files2) $(input-files3) FORCE
$(if $(unwanted),$(call cmd,remove),)
$(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
$(call if_changed,install)