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authorSam Ravnborg <sam@ravnborg.org>2008-02-06 21:51:18 +0100
committerSam Ravnborg <sam@ravnborg.org>2008-02-09 10:43:58 +0100
commitf666751a0ab1d1671855da7e98889256b9a5b1bb (patch)
treede79e009161fd940feb583af0536306ad5e2b79f
parentb1d0e4f535e10775cffde922208b49629169aeaa (diff)
downloadop-kernel-dev-f666751a0ab1d1671855da7e98889256b9a5b1bb.zip
op-kernel-dev-f666751a0ab1d1671855da7e98889256b9a5b1bb.tar.gz
kbuild/modpost: improve warnings if symbol is unknown
If we cannot determine the symbol then print (unknown) to hint the reader that we failed to find the symbol. This happens with REL relocation records in arm object files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
-rw-r--r--scripts/mod/modpost.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 5d54646..32e9d8f 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -613,7 +613,7 @@ static const char *sym_name(struct elf_info *elf, Elf_Sym *sym)
if (sym)
return elf->strtab + sym->st_name;
else
- return "";
+ return "(unknown)";
}
static const char *sec_name(struct elf_info *elf, int shndx)
@@ -1102,7 +1102,7 @@ static int is_function(Elf_Sym *sym)
if (sym)
return ELF_ST_TYPE(sym->st_info) == STT_FUNC;
else
- return 0;
+ return -1;
}
/*
@@ -1120,10 +1120,17 @@ static void report_sec_mismatch(const char *modname, enum mismatch mismatch,
{
const char *from, *from_p;
const char *to, *to_p;
- from = from_is_func ? "function" : "variable";
- from_p = from_is_func ? "()" : "";
- to = to_is_func ? "function" : "variable";
- to_p = to_is_func ? "()" : "";
+
+ switch (from_is_func) {
+ case 0: from = "variable"; from_p = ""; break;
+ case 1: from = "function"; from_p = "()"; break;
+ default: from = "(unknown reference)"; from_p = ""; break;
+ }
+ switch (to_is_func) {
+ case 0: to = "variable"; to_p = ""; break;
+ case 1: to = "function"; to_p = "()"; break;
+ default: to = "(unknown reference)"; to_p = ""; break;
+ }
sec_mismatch_count++;
if (!sec_mismatch_verbose)
@@ -1137,7 +1144,7 @@ static void report_sec_mismatch(const char *modname, enum mismatch mismatch,
switch (mismatch) {
case TEXT_TO_INIT:
fprintf(stderr,
- "The function %s %s() references\n"
+ "The function %s%s() references\n"
"the %s %s%s%s.\n"
"This is often because %s lacks a %s\n"
"annotation or the annotation of %s is wrong.\n",
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