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toolchain: generate check-headers program under $(BUILD_DIR)

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Some installations mount /tmp with the 'noexec' option, which prevents
running the program generated there to check the kernel headers.

Avoid the problem by generating the program under $(BUILD_DIR), passed
as the first argument to check-kernel-headers.sh.

We could globally export a TMPDIR environment variable with some path
under $(BUILD_DIR) but such solution would be too intrusive, depriving
the user from the freedom to set TMPDIR at his will (or needs).

Fixes: https://bugs.busybox.net/show_bug.cgi?id=12241

Signed-off-by: Carlos Santos <unixmania@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Carlos Santos
2019-09-24 08:46:11 -03:00
committed by Thomas Petazzoni
parent cf64b689a6
commit 6136765b23
4 changed files with 10 additions and 8 deletions
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7
support/scripts/check-kernel-headers.sh
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@@ -1,14 +1,15 @@
#!/bin/sh
SYSROOT="${1}"
BUILDDIR="${1}"
SYSROOT="${2}"
# Make sure we have enough version components
HDR_VER="${2}.0.0"
HDR_VER="${3}.0.0"
HDR_M="${HDR_VER%%.*}"
HDR_V="${HDR_VER#*.}"
HDR_m="${HDR_V%%.*}"
EXEC="$(mktemp -t check-headers.XXXXXX)"
EXEC="$(mktemp -p "${BUILDDIR}" -t .check-headers.XXXXXX)"
# We do not want to account for the patch-level, since headers are
# not supposed to change for different patchlevels, so we mask it out.