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authorIlya Leoshkevich <iii@linux.ibm.com>2021-10-26 03:08:27 +0200
committerAndrii Nakryiko <andrii@kernel.org>2021-10-25 20:39:41 -0700
commit3930198dc9a0720a2b6561c67e55859ec51b73f9 (patch)
tree1515d8636e9879992791fd5db55d3fd6b5f19f2b /tools/lib
parent45f2bebc8079788f62f22d9e8b2819afb1789d7b (diff)
downloadlinux-3930198dc9a0720a2b6561c67e55859ec51b73f9.tar.bz2
libbpf: Use __BYTE_ORDER__
Use the compiler-defined __BYTE_ORDER__ instead of the libc-defined __BYTE_ORDER for consistency. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211026010831.748682-3-iii@linux.ibm.com
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/bpf/btf.c4
-rw-r--r--tools/lib/bpf/btf_dump.c8
-rw-r--r--tools/lib/bpf/libbpf.c4
-rw-r--r--tools/lib/bpf/linker.c12
-rw-r--r--tools/lib/bpf/relo_core.c2
5 files changed, 15 insertions, 15 deletions
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index ef924fc2c911..0c628c33e23b 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -538,9 +538,9 @@ int btf__set_pointer_size(struct btf *btf, size_t ptr_sz)
static bool is_host_big_endian(void)
{
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
return false;
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
return true;
#else
# error "Unrecognized __BYTE_ORDER__"
diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c
index 8e05ab44c22a..17db62b5002e 100644
--- a/tools/lib/bpf/btf_dump.c
+++ b/tools/lib/bpf/btf_dump.c
@@ -1576,11 +1576,11 @@ static int btf_dump_get_bitfield_value(struct btf_dump *d,
/* Bitfield value retrieval is done in two steps; first relevant bytes are
* stored in num, then we left/right shift num to eliminate irrelevant bits.
*/
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
for (i = t->size - 1; i >= 0; i--)
num = num * 256 + bytes[i];
nr_copy_bits = bit_sz + bits_offset;
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
for (i = 0; i < t->size; i++)
num = num * 256 + bytes[i];
nr_copy_bits = t->size * 8 - bits_offset;
@@ -1700,10 +1700,10 @@ static int btf_dump_int_data(struct btf_dump *d,
/* avoid use of __int128 as some 32-bit platforms do not
* support it.
*/
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
lsi = ints[0];
msi = ints[1];
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
lsi = ints[1];
msi = ints[0];
#else
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 4b2158657507..2fbed2d4a645 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1299,10 +1299,10 @@ errout:
static int bpf_object__check_endianness(struct bpf_object *obj)
{
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
if (obj->efile.ehdr->e_ident[EI_DATA] == ELFDATA2LSB)
return 0;
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
if (obj->efile.ehdr->e_ident[EI_DATA] == ELFDATA2MSB)
return 0;
#else
diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
index 7bf658fbda80..ce0800e61dc7 100644
--- a/tools/lib/bpf/linker.c
+++ b/tools/lib/bpf/linker.c
@@ -323,12 +323,12 @@ static int init_output_elf(struct bpf_linker *linker, const char *file)
linker->elf_hdr->e_machine = EM_BPF;
linker->elf_hdr->e_type = ET_REL;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
linker->elf_hdr->e_ident[EI_DATA] = ELFDATA2LSB;
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
linker->elf_hdr->e_ident[EI_DATA] = ELFDATA2MSB;
#else
-#error "Unknown __BYTE_ORDER"
+#error "Unknown __BYTE_ORDER__"
#endif
/* STRTAB */
@@ -538,12 +538,12 @@ static int linker_load_obj_file(struct bpf_linker *linker, const char *filename,
const struct bpf_linker_file_opts *opts,
struct src_obj *obj)
{
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
const int host_endianness = ELFDATA2LSB;
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
const int host_endianness = ELFDATA2MSB;
#else
-#error "Unknown __BYTE_ORDER"
+#error "Unknown __BYTE_ORDER__"
#endif
int err = 0;
Elf_Scn *scn;
diff --git a/tools/lib/bpf/relo_core.c b/tools/lib/bpf/relo_core.c
index 4016ed492d0c..b5b8956a1be8 100644
--- a/tools/lib/bpf/relo_core.c
+++ b/tools/lib/bpf/relo_core.c
@@ -662,7 +662,7 @@ static int bpf_core_calc_field_relo(const char *prog_name,
*validate = true; /* signedness is never ambiguous */
break;
case BPF_FIELD_LSHIFT_U64:
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
*val = 64 - (bit_off + bit_sz - byte_off * 8);
#else
*val = (8 - byte_sz) * 8 + (bit_off - byte_off * 8);