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-rw-r--r--tools/lib/api/Makefile8
-rw-r--r--tools/lib/bpf/Makefile8
-rw-r--r--tools/lib/bpf/bpf.c7
-rw-r--r--tools/lib/bpf/bpf.h2
-rw-r--r--tools/lib/bpf/libbpf.c3
-rw-r--r--tools/lib/string.c41
-rw-r--r--tools/lib/subcmd/Makefile2
-rw-r--r--tools/lib/subcmd/help.c2
-rw-r--r--tools/lib/subcmd/parse-options.c18
9 files changed, 51 insertions, 40 deletions
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index eb6e0b36bfc1..4563ba7ede6f 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -8,9 +8,9 @@ srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif
-CC = $(CROSS_COMPILE)gcc
-AR = $(CROSS_COMPILE)ar
-LD = $(CROSS_COMPILE)ld
+CC ?= $(CROSS_COMPILE)gcc
+AR ?= $(CROSS_COMPILE)ar
+LD ?= $(CROSS_COMPILE)ld
MAKEFLAGS += --no-print-directory
@@ -19,7 +19,7 @@ LIBFILE = $(OUTPUT)libapi.a
CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
-ifeq ($(CC), clang)
+ifeq ($(CC_NO_CLANG), 0)
CFLAGS += -O3
else
CFLAGS += -O6
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index 1f5300e56b44..4ed0257dc1f3 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -154,12 +154,12 @@ all: fixdep $(VERSION_FILES) all_cmd
all_cmd: $(CMD_TARGETS)
$(BPF_IN): force elfdep bpfdep
- @(test -f ../../../include/uapi/linux/bpf.h -a -f ../../../include/uapi/linux/bpf.h && ( \
+ @(test -f ../../include/uapi/linux/bpf.h -a -f ../../../include/uapi/linux/bpf.h && ( \
(diff -B ../../include/uapi/linux/bpf.h ../../../include/uapi/linux/bpf.h >/dev/null) || \
- echo "Warning: tools/include/uapi/linux/bpf.h differs from kernel" >&2 )) || true
- @(test -f ../../../include/uapi/linux/bpf_common.h -a -f ../../../include/uapi/linux/bpf_common.h && ( \
+ echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'" >&2 )) || true
+ @(test -f ../../include/uapi/linux/bpf_common.h -a -f ../../../include/uapi/linux/bpf_common.h && ( \
(diff -B ../../include/uapi/linux/bpf_common.h ../../../include/uapi/linux/bpf_common.h >/dev/null) || \
- echo "Warning: tools/include/uapi/linux/bpf_common.h differs from kernel" >&2 )) || true
+ echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf_common.h' differs from latest version at 'include/uapi/linux/bpf_common.h'" >&2 )) || true
$(Q)$(MAKE) $(build)=libbpf
$(OUTPUT)libbpf.so: $(BPF_IN)
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 7e0405e1651d..e5bbb090bf88 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -39,6 +39,8 @@
# define __NR_bpf 280
# elif defined(__sparc__)
# define __NR_bpf 349
+# elif defined(__s390__)
+# define __NR_bpf 351
# else
# error __NR_bpf not defined. libbpf does not support your arch.
# endif
@@ -120,7 +122,7 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
size_t insns_cnt, int strict_alignment,
const char *license, __u32 kern_version,
- char *log_buf, size_t log_buf_sz)
+ char *log_buf, size_t log_buf_sz, int log_level)
{
union bpf_attr attr;
@@ -131,7 +133,7 @@ int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
attr.license = ptr_to_u64(license);
attr.log_buf = ptr_to_u64(log_buf);
attr.log_size = log_buf_sz;
- attr.log_level = 2;
+ attr.log_level = log_level;
log_buf[0] = 0;
attr.kern_version = kern_version;
attr.prog_flags = strict_alignment ? BPF_F_STRICT_ALIGNMENT : 0;
@@ -314,7 +316,6 @@ int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len)
int err;
bzero(&attr, sizeof(attr));
- bzero(info, *info_len);
attr.info.bpf_fd = prog_fd;
attr.info.info_len = *info_len;
attr.info.info = ptr_to_u64(info);
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index 16de44a14b48..418c86e69bcb 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -38,7 +38,7 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
size_t insns_cnt, int strict_alignment,
const char *license, __u32 kern_version,
- char *log_buf, size_t log_buf_sz);
+ char *log_buf, size_t log_buf_sz, int log_level);
int bpf_map_update_elem(int fd, const void *key, const void *value,
__u64 flags);
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 1a2c07eb7795..8c67a90dbd82 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -879,7 +879,8 @@ bpf_object__create_maps(struct bpf_object *obj)
size_t j;
int err = *pfd;
- pr_warning("failed to create map: %s\n",
+ pr_warning("failed to create map (name: '%s'): %s\n",
+ obj->maps[i].name,
strerror(errno));
for (j = 0; j < i; j++)
zclose(obj->maps[j].fd);
diff --git a/tools/lib/string.c b/tools/lib/string.c
index 8e678af1c6ee..a4246f14ded1 100644
--- a/tools/lib/string.c
+++ b/tools/lib/string.c
@@ -39,27 +39,45 @@ void *memdup(const void *src, size_t len)
* @s: input string
* @res: result
*
- * This routine returns 0 iff the first character is one of 'Yy1Nn0'.
- * Otherwise it will return -EINVAL. Value pointed to by res is
- * updated upon finding a match.
+ * This routine returns 0 iff the first character is one of 'Yy1Nn0', or
+ * [oO][NnFf] for "on" and "off". Otherwise it will return -EINVAL. Value
+ * pointed to by res is updated upon finding a match.
*/
int strtobool(const char *s, bool *res)
{
+ if (!s)
+ return -EINVAL;
+
switch (s[0]) {
case 'y':
case 'Y':
case '1':
*res = true;
- break;
+ return 0;
case 'n':
case 'N':
case '0':
*res = false;
- break;
+ return 0;
+ case 'o':
+ case 'O':
+ switch (s[1]) {
+ case 'n':
+ case 'N':
+ *res = true;
+ return 0;
+ case 'f':
+ case 'F':
+ *res = false;
+ return 0;
+ default:
+ break;
+ }
default:
- return -EINVAL;
+ break;
}
- return 0;
+
+ return -EINVAL;
}
/**
@@ -87,12 +105,3 @@ size_t __weak strlcpy(char *dest, const char *src, size_t size)
}
return ret;
}
-
-int prefixcmp(const char *str, const char *prefix)
-{
- for (; ; str++, prefix++)
- if (!*prefix)
- return 0;
- else if (*str != *prefix)
- return (unsigned char)*prefix - (unsigned char)*str;
-}
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index 3d1c3b5b5150..7e9f03c97e4c 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -21,7 +21,7 @@ LIBFILE = $(OUTPUT)libsubcmd.a
CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
-ifeq ($(CC), clang)
+ifeq ($(CC_NO_CLANG), 0)
CFLAGS += -O3
else
CFLAGS += -O6
diff --git a/tools/lib/subcmd/help.c b/tools/lib/subcmd/help.c
index ba970a73d053..0310520f918e 100644
--- a/tools/lib/subcmd/help.c
+++ b/tools/lib/subcmd/help.c
@@ -171,7 +171,7 @@ static void list_commands_in_dir(struct cmdnames *cmds,
while ((de = readdir(dir)) != NULL) {
int entlen;
- if (prefixcmp(de->d_name, prefix))
+ if (!strstarts(de->d_name, prefix))
continue;
astrcat(&buf, de->d_name);
diff --git a/tools/lib/subcmd/parse-options.c b/tools/lib/subcmd/parse-options.c
index 359bfa77f39c..2bd6fd0c1d40 100644
--- a/tools/lib/subcmd/parse-options.c
+++ b/tools/lib/subcmd/parse-options.c
@@ -368,7 +368,7 @@ retry:
return 0;
}
if (!rest) {
- if (!prefixcmp(options->long_name, "no-")) {
+ if (strstarts(options->long_name, "no-")) {
/*
* The long name itself starts with "no-", so
* accept the option without "no-" so that users
@@ -381,7 +381,7 @@ retry:
goto match;
}
/* Abbreviated case */
- if (!prefixcmp(options->long_name + 3, arg)) {
+ if (strstarts(options->long_name + 3, arg)) {
flags |= OPT_UNSET;
goto is_abbreviated;
}
@@ -406,7 +406,7 @@ is_abbreviated:
continue;
}
/* negated and abbreviated very much? */
- if (!prefixcmp("no-", arg)) {
+ if (strstarts("no-", arg)) {
flags |= OPT_UNSET;
goto is_abbreviated;
}
@@ -416,7 +416,7 @@ is_abbreviated:
flags |= OPT_UNSET;
rest = skip_prefix(arg + 3, options->long_name);
/* abbreviated and negated? */
- if (!rest && !prefixcmp(options->long_name, arg + 3))
+ if (!rest && strstarts(options->long_name, arg + 3))
goto is_abbreviated;
if (!rest)
continue;
@@ -456,7 +456,7 @@ static void check_typos(const char *arg, const struct option *options)
if (strlen(arg) < 3)
return;
- if (!prefixcmp(arg, "no-")) {
+ if (strstarts(arg, "no-")) {
fprintf(stderr, " Error: did you mean `--%s` (with two dashes ?)", arg);
exit(129);
}
@@ -464,7 +464,7 @@ static void check_typos(const char *arg, const struct option *options)
for (; options->type != OPTION_END; options++) {
if (!options->long_name)
continue;
- if (!prefixcmp(options->long_name, arg)) {
+ if (strstarts(options->long_name, arg)) {
fprintf(stderr, " Error: did you mean `--%s` (with two dashes ?)", arg);
exit(129);
}
@@ -933,10 +933,10 @@ opt:
if (opts->long_name == NULL)
continue;
- if (!prefixcmp(opts->long_name, optstr))
+ if (strstarts(opts->long_name, optstr))
print_option_help(opts, 0);
- if (!prefixcmp("no-", optstr) &&
- !prefixcmp(opts->long_name, optstr + 3))
+ if (strstarts("no-", optstr) &&
+ strstarts(opts->long_name, optstr + 3))
print_option_help(opts, 0);
}
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