diff options
| author | Masahiro Yamada <masahiroy@kernel.org> | 2024-07-27 16:42:02 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2024-09-01 20:33:32 +0900 |
| commit | a660deb0f1f62214439640292cd7726f6ed8023d (patch) | |
| tree | bc1fe9ba8a9be42934c5a65860c249150bab4855 /scripts/mod/mk_elfconfig.c | |
| parent | 4f32f799a950c7fffa17971177be42c79d74b69f (diff) | |
modpost: detect endianness on run-time
Endianness is currently detected on compile-time, but we can defer this
until run-time. This change avoids re-executing scripts/mod/mk_elfconfig
even if modpost in the linux-headers package needs to be rebuilt for a
foreign architecture.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Diffstat (limited to 'scripts/mod/mk_elfconfig.c')
| -rw-r--r-- | scripts/mod/mk_elfconfig.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/scripts/mod/mk_elfconfig.c b/scripts/mod/mk_elfconfig.c index aca96b3aada0..e8cee4e4bc73 100644 --- a/scripts/mod/mk_elfconfig.c +++ b/scripts/mod/mk_elfconfig.c @@ -8,7 +8,6 @@ int main(int argc, char **argv) { unsigned char ei[EI_NIDENT]; - union { short s; char c[2]; } endian_test; if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) { fprintf(stderr, "Error: input truncated\n"); @@ -28,24 +27,6 @@ main(int argc, char **argv) default: exit(1); } - switch (ei[EI_DATA]) { - case ELFDATA2LSB: - printf("#define KERNEL_ELFDATA ELFDATA2LSB\n"); - break; - case ELFDATA2MSB: - printf("#define KERNEL_ELFDATA ELFDATA2MSB\n"); - break; - default: - exit(1); - } - - endian_test.s = 0x0102; - if (memcmp(endian_test.c, "\x01\x02", 2) == 0) - printf("#define HOST_ELFDATA ELFDATA2MSB\n"); - else if (memcmp(endian_test.c, "\x02\x01", 2) == 0) - printf("#define HOST_ELFDATA ELFDATA2LSB\n"); - else - exit(1); return 0; } |