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kbuild/modpost: improve warnings if symbol is unknown

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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>
This commit is contained in:
Sam Ravnborg
2008-02-06 21:51:18 +01:00
parent b1d0e4f535
commit f666751a0a
1 changed files with 14 additions and 7 deletions
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21
scripts/mod/modpost.c
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@ -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",