From: Andrii Nakryiko <andriin@fb.com>
Date: Thu, 12 Dec 2019 09:19:18 -0800
Subject: libbpf: Fix printf compilation warnings on ppc64le arch
Patch-mainline: v5.6-rc1
Git-commit: 679152d3a32e305c213f83160c328c37566ae8bc
References: bsc#1155518

On ppc64le __u64 and __s64 are defined as long int and unsigned long int,
respectively. This causes compiler to emit warning when %lld/%llu are used to
printf 64-bit numbers. Fix this by casting to size_t/ssize_t with %zu and %zd
format specifiers, respectively.

v1->v2:
- use size_t/ssize_t instead of custom typedefs (Martin).

Fixes: 1f8e2bcb2cd5 ("libbpf: Refactor relocation handling")
Fixes: abd29c931459 ("libbpf: allow specifying map definitions using BTF")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191212171918.638010-1-andriin@fb.com
Acked-by: Gary Lin <glin@suse.com>
---
 tools/lib/bpf/libbpf.c |   37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1243,15 +1243,15 @@ static int bpf_object__init_user_btf_map
 			}
 			sz = btf__resolve_size(obj->btf, t->type);
 			if (sz < 0) {
-				pr_warning("map '%s': can't determine key size for type [%u]: %lld.\n",
-					   map_name, t->type, sz);
+				pr_warning("map '%s': can't determine key size for type [%u]: %zd.\n",
+					   map_name, t->type, (ssize_t)sz);
 				return sz;
 			}
-			pr_debug("map '%s': found key [%u], sz = %lld.\n",
-				 map_name, t->type, sz);
+			pr_debug("map '%s': found key [%u], sz = %zd.\n",
+				 map_name, t->type, (ssize_t)sz);
 			if (map->def.key_size && map->def.key_size != sz) {
-				pr_warning("map '%s': conflicting key size %u != %lld.\n",
-					   map_name, map->def.key_size, sz);
+				pr_warning("map '%s': conflicting key size %u != %zd.\n",
+					   map_name, map->def.key_size, (ssize_t)sz);
 				return -EINVAL;
 			}
 			map->def.key_size = sz;
@@ -1286,15 +1286,15 @@ static int bpf_object__init_user_btf_map
 			}
 			sz = btf__resolve_size(obj->btf, t->type);
 			if (sz < 0) {
-				pr_warning("map '%s': can't determine value size for type [%u]: %lld.\n",
-					   map_name, t->type, sz);
+				pr_warning("map '%s': can't determine value size for type [%u]: %zd.\n",
+					   map_name, t->type, (ssize_t)sz);
 				return sz;
 			}
-			pr_debug("map '%s': found value [%u], sz = %lld.\n",
-				 map_name, t->type, sz);
+			pr_debug("map '%s': found value [%u], sz = %zd.\n",
+				 map_name, t->type, (ssize_t)sz);
 			if (map->def.value_size && map->def.value_size != sz) {
-				pr_warning("map '%s': conflicting value size %u != %lld.\n",
-					   map_name, map->def.value_size, sz);
+				pr_warning("map '%s': conflicting value size %u != %zd.\n",
+					   map_name, map->def.value_size, (ssize_t)sz);
 				return -EINVAL;
 			}
 			map->def.value_size = sz;
@@ -1819,7 +1819,8 @@ static int bpf_program__record_reloc(str
 			return -LIBBPF_ERRNO__RELOC;
 		}
 		if (sym->st_value % 8) {
-			pr_warning("bad call relo offset: %llu\n", (__u64)sym->st_value);
+			pr_warning("bad call relo offset: %zu\n",
+				   (size_t)sym->st_value);
 			return -LIBBPF_ERRNO__RELOC;
 		}
 		reloc_desc->type = RELO_CALL;
@@ -1861,8 +1862,8 @@ static int bpf_program__record_reloc(str
 			break;
 		}
 		if (map_idx >= nr_maps) {
-			pr_warning("map relo failed to find map for sec %u, off %llu\n",
-				   shdr_idx, (__u64)sym->st_value);
+			pr_warning("map relo failed to find map for sec %u, off %zu\n",
+				   shdr_idx, (size_t)sym->st_value);
 			return -LIBBPF_ERRNO__RELOC;
 		}
 		reloc_desc->type = RELO_LD64;
@@ -1942,9 +1943,9 @@ bpf_program__collect_reloc(struct bpf_pr
 		insn_idx = rel.r_offset / sizeof(struct bpf_insn);
 		name = elf_strptr(obj->efile.elf, obj->efile.strtabidx,
 				  sym.st_name) ? : "<?>";
-		pr_debug("relo for shdr %u, symb %llu, value %llu, type %d, bind %d, name %d (\'%s\'), insn %u\n",
-			 (__u32)sym.st_shndx, (__u64)GELF_R_SYM(rel.r_info),
-			 (__u64)sym.st_value, GELF_ST_TYPE(sym.st_info),
+		pr_debug("relo for shdr %u, symb %zu, value %zu, type %d, bind %d, name %d (\'%s\'), insn %u\n",
+			 (__u32)sym.st_shndx, (size_t)GELF_R_SYM(rel.r_info),
+			 (size_t)sym.st_value, GELF_ST_TYPE(sym.st_info),
 			 GELF_ST_BIND(sym.st_info), sym.st_name, name,
 			 insn_idx);