diff options
author | Ian Lance Taylor <ian@airs.com> | 2011-07-09 06:11:34 +0000 |
---|---|---|
committer | Ian Lance Taylor <ian@airs.com> | 2011-07-09 06:11:34 +0000 |
commit | beabb2c68ff9e09a1141cafd6f0b11ed98343290 (patch) | |
tree | 6a693410c82ed8e6edc622066771b6c1a380fa8e /gold/target-reloc.h | |
parent | 9c16daf1fcf87c2d75dea6775586135685237b4d (diff) | |
download | fsf-binutils-gdb-beabb2c68ff9e09a1141cafd6f0b11ed98343290.zip fsf-binutils-gdb-beabb2c68ff9e09a1141cafd6f0b11ed98343290.tar.gz fsf-binutils-gdb-beabb2c68ff9e09a1141cafd6f0b11ed98343290.tar.bz2 |
PR gold/12386
* options.h (class General_options): Add --unresolved-symbols.
* target-reloc.h (issue_undefined_symbol_error): Check
--unresolved-symbols. Add comments.
Diffstat (limited to 'gold/target-reloc.h')
-rw-r--r-- | gold/target-reloc.h | 47 |
1 files changed, 40 insertions, 7 deletions
diff --git a/gold/target-reloc.h b/gold/target-reloc.h index fabc0a9f..87fa593 100644 --- a/gold/target-reloc.h +++ b/gold/target-reloc.h @@ -176,13 +176,46 @@ visibility_error(const Symbol* sym) inline bool issue_undefined_symbol_error(const Symbol* sym) { - return (sym != NULL - && (sym->is_undefined() || sym->is_placeholder()) - && sym->binding() != elfcpp::STB_WEAK - && !sym->is_defined_in_discarded_section() - && !parameters->target().is_defined_by_abi(sym) - && (!parameters->options().shared() - || parameters->options().defs())); + // We only report global symbols. + if (sym == NULL) + return false; + + // We only report undefined symbols. + if (!sym->is_undefined() && !sym->is_placeholder()) + return false; + + // We don't report weak symbols. + if (sym->binding() == elfcpp::STB_WEAK) + return false; + + // We don't report symbols defined in discarded sections. + if (sym->is_defined_in_discarded_section()) + return false; + + // If the target defines this symbol, don't report it here. + if (parameters->target().is_defined_by_abi(sym)) + return false; + + // See if we've been told to ignore whether this symbol is + // undefined. + const char* const u = parameters->options().unresolved_symbols(); + if (u != NULL) + { + if (strcmp(u, "ignore-all") == 0) + return false; + if (strcmp(u, "ignore-in-object-files") == 0 && !sym->in_dyn()) + return false; + if (strcmp(u, "ignore-in-shared-libs") == 0 && !sym->in_reg()) + return false; + } + + // When creating a shared library, only report unresolved symbols if + // -z defs was used. + if (parameters->options().shared() && !parameters->options().defs()) + return false; + + // Otherwise issue a warning. + return true; } // This function implements the generic part of relocation processing. |