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| author |   Helge Deller <deller@gmx.de> | 2022-02-13 22:29:25 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2022-02-13 22:45:53 +0100 |
| commit | b160628e9ebcdc85d0db9d7f423c26b3c7c179d0 (patch) | |
| tree | 01a8abc1f566e4a5068042247c1e388cccdf8b9e /arch/parisc/include | |
| parent | parisc: Add ioread64_lo_hi() and iowrite64_lo_hi() (diff) | |
| download | linux-dev-b160628e9ebcdc85d0db9d7f423c26b3c7c179d0.tar.xz linux-dev-b160628e9ebcdc85d0db9d7f423c26b3c7c179d0.zip | |
parisc: Show error if wrong 32/64-bit compiler is being used
It happens quite often that people use the wrong compiler to build the
kernel:
make ARCH=parisc -> builds the 32-bit kernel
make ARCH=parisc64 -> builds the 64-bit kernel
This patch adds a sanity check which errors out with an instruction how
use the correct ARCH= option.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.15+
Diffstat (limited to 'arch/parisc/include')
| -rw-r--r-- | arch/parisc/include/asm/bitops.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h index 0ec9cfc5131f..56ffd260c669 100644 --- a/arch/parisc/include/asm/bitops.h +++ b/arch/parisc/include/asm/bitops.h @@ -12,6 +12,14 @@ #include <asm/barrier.h> #include <linux/atomic.h> +/* compiler build environment sanity checks: */ +#if !defined(CONFIG_64BIT) && defined(__LP64__) +#error "Please use 'ARCH=parisc' to build the 32-bit kernel." +#endif +#if defined(CONFIG_64BIT) && !defined(__LP64__) +#error "Please use 'ARCH=parisc64' to build the 64-bit kernel." +#endif + /* See http://marc.theaimsgroup.com/?t=108826637900003 for discussion * on use of volatile and __*_bit() (set/clear/change): * *_bit() want use of volatile. |