diff options
| author | Chris Metcalf <cmetcalf@tilera.com> | 2012-03-29 13:30:31 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2012-05-25 12:48:22 -0400 |
| commit | 1efea40d4172a2a475ccb29b59d6221e9d0c174b (patch) | |
| tree | 8152b61bb3fa83eb3403bca5cb05731c1063e999 /arch/tile/kernel/module.c | |
| parent | 73636b1aacb1a07e6fbe0d25e560e69b024a8e25 (diff) | |
arch/tile: support building big-endian kernel
The toolchain supports big-endian mode now, so add support for building
the kernel to run big-endian as well.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/module.c')
| -rw-r--r-- | arch/tile/kernel/module.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c index 98d476920106..001cbfa10ac6 100644 --- a/arch/tile/kernel/module.c +++ b/arch/tile/kernel/module.c @@ -159,7 +159,17 @@ int apply_relocate_add(Elf_Shdr *sechdrs, switch (ELF_R_TYPE(rel[i].r_info)) { -#define MUNGE(func) (*location = ((*location & ~func(-1)) | func(value))) +#ifdef __LITTLE_ENDIAN +# define MUNGE(func) \ + (*location = ((*location & ~func(-1)) | func(value))) +#else +/* + * Instructions are always little-endian, so when we read them as data, + * we have to swap them around before and after modifying them. + */ +# define MUNGE(func) \ + (*location = swab64((swab64(*location) & ~func(-1)) | func(value))) +#endif #ifndef __tilegx__ case R_TILE_32: |