On Mon, May 17, 2021 at 10:05 AM Jacob Kroon <jacob.kr...@gmail.com> wrote: > > In gcc 11 the default mode for C++ is now -std=gnu++17 instead of > -std=gnu++14, > in which support for dynamic exception specifications has been removed.
As much as I'd like to see mklibs fully supported in OE, at some point maybe we should just admit that it doesn't work and there's not enough collective motivation to fix it. For mklibs to work, the build process should generate a PIC .a archive for every .so shared library (ie static libs need to be built and somehow forced to contain PIC object code - which may mean patching Makefiles etc) and then the PIC .a files need to be available alongside the .so libs when mklibs runs. We don't have any support for doing that, so why keep pretending to support mklibs? > See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0003r5.html > > Signed-off-by: Jacob Kroon <jacob.kr...@gmail.com> > --- > .../no-dynamic-exception-specifications.patch | 420 ++++++++++++++++++ > .../mklibs/mklibs-native_0.1.44.bb | 1 + > 2 files changed, 421 insertions(+) > create mode 100644 > meta/recipes-devtools/mklibs/files/no-dynamic-exception-specifications.patch > > diff --git > a/meta/recipes-devtools/mklibs/files/no-dynamic-exception-specifications.patch > > b/meta/recipes-devtools/mklibs/files/no-dynamic-exception-specifications.patch > new file mode 100644 > index 0000000000..5989a67c4f > --- /dev/null > +++ > b/meta/recipes-devtools/mklibs/files/no-dynamic-exception-specifications.patch > @@ -0,0 +1,420 @@ > +In gcc 11 the default mode for C++ is now -std=gnu++17 instead of > -std=gnu++14, > +in which support for dynamic exception specifications has been removed. > + > +See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0003r5.html > + > +Upstream-Status: Pending > + > +Signed-off-by: Jacob Kroon <jacob.kr...@gmail.com> > + > +Index: mklibs-0.1.44/src/mklibs-readelf/elf.cpp > +=================================================================== > +--- mklibs-0.1.44.orig/src/mklibs-readelf/elf.cpp > ++++ mklibs-0.1.44/src/mklibs-readelf/elf.cpp > +@@ -36,7 +36,7 @@ file::~file () throw () > + delete *it; > + } > + > +-file *file::open (const char *filename) throw (std::bad_alloc, > std::runtime_error) > ++file *file::open (const char *filename) > + { > + struct stat buf; > + int fd; > +@@ -72,7 +72,7 @@ file *file::open (const char *filename) > + } > + > + template<typename _class> > +-file *file::open_class(uint8_t *mem, size_t len) throw (std::bad_alloc, > std::runtime_error) > ++file *file::open_class(uint8_t *mem, size_t len) > + { > + switch (mem[EI_DATA]) > + { > +@@ -86,7 +86,7 @@ file *file::open_class(uint8_t *mem, siz > + } > + > + template <typename _class, typename _data> > +-file_data<_class, _data>::file_data(uint8_t *mem, size_t len) throw > (std::bad_alloc, std::runtime_error) > ++file_data<_class, _data>::file_data(uint8_t *mem, size_t len) > + : file(mem, len) > + { > + if (mem[EI_CLASS] != _class::id) > +@@ -190,7 +190,7 @@ section_data<_class, _data>::section_dat > + } > + > + template <typename _class, typename _data> > +-void section_data<_class, _data>::update(const file &file) throw > (std::bad_alloc) > ++void section_data<_class, _data>::update(const file &file) > + { > + const section_type<section_type_STRTAB> §ion = > + dynamic_cast<const section_type<section_type_STRTAB> > &>(file.get_section(file.get_shstrndx())); > +@@ -204,7 +204,7 @@ section_type<section_type_DYNAMIC>::~sec > + } > + > + template <typename _class, typename _data> > +-section_real<_class, _data, section_type_DYNAMIC>::section_real(Shdr > *header, uint8_t *mem) throw (std::bad_alloc) > ++section_real<_class, _data, section_type_DYNAMIC>::section_real(Shdr > *header, uint8_t *mem) > + : section_data<_class, _data>(header, mem) > + { > + if (this->type != SHT_DYNAMIC) > +@@ -221,7 +221,7 @@ section_real<_class, _data, section_type > + } > + > + template <typename _class, typename _data> > +-void section_real<_class, _data, section_type_DYNAMIC>::update(const file > &file) throw (std::bad_alloc) > ++void section_real<_class, _data, section_type_DYNAMIC>::update(const file > &file) > + { > + section_data<_class, _data>::update(file); > + > +@@ -243,7 +243,7 @@ section_type<section_type_DYNSYM>::~sect > + } > + > + template <typename _class, typename _data> > +-section_real<_class, _data, section_type_DYNSYM>::section_real(Shdr > *header, uint8_t *mem) throw (std::bad_alloc) > ++section_real<_class, _data, section_type_DYNSYM>::section_real(Shdr > *header, uint8_t *mem) > + : section_data<_class, _data>(header, mem) > + { > + if (this->type != SHT_DYNSYM) > +@@ -260,7 +260,7 @@ section_real<_class, _data, section_type > + } > + > + template <typename _class, typename _data> > +-void section_real<_class, _data, section_type_DYNSYM>::update(const file > &file) throw (std::bad_alloc) > ++void section_real<_class, _data, section_type_DYNSYM>::update(const file > &file) > + { > + section_data<_class, _data>::update (file); > + > +@@ -285,7 +285,7 @@ const version_definition *section_type<s > + } > + > + template <typename _class, typename _data> > +-section_real<_class, _data, section_type_GNU_VERDEF>::section_real(Shdr > *header, uint8_t *mem) throw (std::bad_alloc) > ++section_real<_class, _data, section_type_GNU_VERDEF>::section_real(Shdr > *header, uint8_t *mem) > + : section_data<_class, _data>(header, mem) > + { > + if (this->type != SHT_GNU_verdef) > +@@ -307,7 +307,7 @@ section_real<_class, _data, section_type > + } > + > + template <typename _class, typename _data> > +-void section_real<_class, _data, section_type_GNU_VERDEF>::update(const > file &file) throw (std::bad_alloc) > ++void section_real<_class, _data, section_type_GNU_VERDEF>::update(const > file &file) > + { > + section_data<_class, _data>::update(file); > + > +@@ -333,7 +333,7 @@ const version_requirement_entry *section > + > + template <typename _class, typename _data> > + section_real<_class, _data, section_type_GNU_VERNEED>:: > +-section_real(Shdr *header, uint8_t *mem) throw (std::bad_alloc) > ++section_real(Shdr *header, uint8_t *mem) > + : section_data<_class, _data> (header, mem) > + { > + if (this->type != SHT_GNU_verneed) > +@@ -355,7 +355,7 @@ section_real(Shdr *header, uint8_t *mem) > + } > + > + template <typename _class, typename _data> > +-void section_real<_class, _data, section_type_GNU_VERNEED>::update(const > file &file) throw (std::bad_alloc) > ++void section_real<_class, _data, section_type_GNU_VERNEED>::update(const > file &file) > + { > + section_data<_class, _data>::update(file); > + > +@@ -372,7 +372,7 @@ void section_real<_class, _data, section > + > + template <typename _class, typename _data> > + section_real<_class, _data, section_type_GNU_VERSYM>:: > +-section_real (Shdr *header, uint8_t *mem) throw (std::bad_alloc) > ++section_real (Shdr *header, uint8_t *mem) > + : section_data<_class, _data> (header, mem) > + { > + if (this->type != SHT_GNU_versym) > +@@ -399,7 +399,7 @@ segment_data<_class, _data>::segment_dat > + } > + > + template <typename _class, typename _data> > +-segment_real<_class, _data, segment_type_INTERP>::segment_real (Phdr > *header, uint8_t *mem) throw (std::bad_alloc) > ++segment_real<_class, _data, segment_type_INTERP>::segment_real (Phdr > *header, uint8_t *mem) > + : segment_data<_class, _data> (header, mem) > + { > + if (this->type != PT_INTERP) > +@@ -429,13 +429,13 @@ dynamic_data<_class, _data>::dynamic_dat > + } > + > + template <typename _class, typename _data> > +-void dynamic_data<_class, _data>::update_string(const > section_type<section_type_STRTAB> §ion) throw (std::bad_alloc) > ++void dynamic_data<_class, _data>::update_string(const > section_type<section_type_STRTAB> §ion) > + { > + if (is_string) > + val_string = section.get_string(val); > + } > + > +-std::string symbol::get_version () const throw (std::bad_alloc) > ++std::string symbol::get_version () const > + { > + if (verneed) > + return verneed->get_name(); > +@@ -445,7 +445,7 @@ std::string symbol::get_version () const > + return "Base"; > + } > + > +-std::string symbol::get_version_file () const throw (std::bad_alloc) > ++std::string symbol::get_version_file () const > + { > + if (verneed) > + return verneed->get_file(); > +@@ -453,7 +453,7 @@ std::string symbol::get_version_file () > + return "None"; > + } > + > +-std::string symbol::get_name_version () const throw (std::bad_alloc) > ++std::string symbol::get_name_version () const > + { > + std::string ver; > + > +@@ -478,13 +478,13 @@ symbol_data<_class, _data>::symbol_data > + } > + > + template <typename _class, typename _data> > +-void symbol_data<_class, _data>::update_string(const > section_type<section_type_STRTAB> §ion) throw (std::bad_alloc) > ++void symbol_data<_class, _data>::update_string(const > section_type<section_type_STRTAB> §ion) > + { > + name_string = section.get_string(name); > + } > + > + template <typename _class, typename _data> > +-void symbol_data<_class, _data>::update_version(const file &file, uint16_t > index) throw (std::bad_alloc) > ++void symbol_data<_class, _data>::update_version(const file &file, uint16_t > index) > + { > + if (!file.get_section_GNU_VERSYM()) > + return; > +@@ -531,13 +531,13 @@ version_definition_data<_class, _data>:: > + } > + > + template <typename _class, typename _data> > +-void version_definition_data<_class, _data>::update_string(const > section_type<section_type_STRTAB> §ion) throw (std::bad_alloc) > ++void version_definition_data<_class, _data>::update_string(const > section_type<section_type_STRTAB> §ion) > + { > + for (std::vector<uint32_t>::iterator it = names.begin(); it != > names.end(); ++it) > + names_string.push_back(section.get_string(*it)); > + } > + > +-version_requirement::version_requirement() throw (std::bad_alloc) > ++version_requirement::version_requirement() > + : file_string("None") > + { } > + > +@@ -561,7 +561,7 @@ version_requirement_data<_class, _data>: > + > + template <typename _class, typename _data> > + void version_requirement_data<_class, _data>:: > +-update_string(const section_type<section_type_STRTAB> §ion) throw > (std::bad_alloc) > ++update_string(const section_type<section_type_STRTAB> §ion) > + { > + file_string = section.get_string(file); > + > +@@ -596,7 +596,7 @@ version_requirement_entry_data(Vernaux * > + > + template <typename _class, typename _data> > + void version_requirement_entry_data<_class, _data>:: > +-update_string(const section_type<section_type_STRTAB> §ion) throw > (std::bad_alloc) > ++update_string(const section_type<section_type_STRTAB> §ion) > + { > + name_string = section.get_string(name); > + } > +Index: mklibs-0.1.44/src/mklibs-readelf/elf.hpp > +=================================================================== > +--- mklibs-0.1.44.orig/src/mklibs-readelf/elf.hpp > ++++ mklibs-0.1.44/src/mklibs-readelf/elf.hpp > +@@ -49,7 +49,7 @@ namespace Elf > + const uint16_t get_shstrndx() const throw () { return shstrndx; } > + > + const std::vector<section *> get_sections() const throw () { return > sections; }; > +- const section &get_section(unsigned int i) const throw > (std::out_of_range) { return *sections.at(i); }; > ++ const section &get_section(unsigned int i) const { return > *sections.at(i); }; > + const section_type<section_type_DYNAMIC> *get_section_DYNAMIC() const > throw () { return section_DYNAMIC; }; > + const section_type<section_type_DYNSYM> *get_section_DYNSYM() const > throw () { return section_DYNSYM; }; > + const section_type<section_type_GNU_VERDEF> *get_section_GNU_VERDEF() > const throw () { return section_GNU_VERDEF; }; > +@@ -59,13 +59,13 @@ namespace Elf > + const std::vector<segment *> get_segments() const throw () { return > segments; }; > + const segment_type<segment_type_INTERP> *get_segment_INTERP() const > throw () { return segment_INTERP; }; > + > +- static file *open(const char *filename) throw (std::bad_alloc, > std::runtime_error); > ++ static file *open(const char *filename); > + > + protected: > +- file(uint8_t *mem, size_t len) throw (std::bad_alloc) : mem(mem), > len(len) { } > ++ file(uint8_t *mem, size_t len) : mem(mem), len(len) { } > + > + template<typename _class> > +- static file *open_class(uint8_t *, size_t) throw (std::bad_alloc, > std::runtime_error); > ++ static file *open_class(uint8_t *, size_t); > + > + uint16_t type; > + uint16_t machine; > +@@ -128,7 +128,7 @@ namespace Elf > + class section_type<section_type_STRTAB> : public virtual section > + { > + public: > +- std::string get_string(uint32_t offset) const throw (std::bad_alloc) > ++ std::string get_string(uint32_t offset) const > + { > + return std::string(reinterpret_cast<const char *> (mem + offset)); > + } > +@@ -263,10 +263,10 @@ namespace Elf > + uint8_t get_bind () const throw () { return bind; } > + uint8_t get_type () const throw () { return type; } > + const std::string &get_name_string() const throw () { return > name_string; } > +- std::string get_version() const throw (std::bad_alloc); > +- std::string get_version_file() const throw (std::bad_alloc); > ++ std::string get_version() const; > ++ std::string get_version_file() const; > + uint16_t get_version_data() const throw () { return versym; } > +- std::string get_name_version() const throw (std::bad_alloc); > ++ std::string get_name_version() const; > + > + protected: > + uint32_t name; > +@@ -305,7 +305,7 @@ namespace Elf > + class version_requirement > + { > + public: > +- version_requirement() throw (std::bad_alloc); > ++ version_requirement(); > + virtual ~version_requirement () throw () { } > + > + const std::string &get_file() const throw () { return file_string; } > +Index: mklibs-0.1.44/src/mklibs-readelf/elf_data.hpp > +=================================================================== > +--- mklibs-0.1.44.orig/src/mklibs-readelf/elf_data.hpp > ++++ mklibs-0.1.44/src/mklibs-readelf/elf_data.hpp > +@@ -94,7 +94,7 @@ namespace Elf > + class file_data : public file > + { > + public: > +- file_data(uint8_t *, size_t len) throw (std::bad_alloc, > std::runtime_error); > ++ file_data(uint8_t *, size_t len); > + > + const uint8_t get_class() const throw () { return _class::id; } > + const uint8_t get_data() const throw () { return _data::id; } > +@@ -109,7 +109,7 @@ namespace Elf > + public: > + section_data(Shdr *, uint8_t *) throw (); > + > +- virtual void update(const file &) throw (std::bad_alloc); > ++ virtual void update(const file &); > + }; > + > + template <typename _class, typename _data, typename _type> > +@@ -133,9 +133,9 @@ namespace Elf > + typedef typename _elfdef<_class>::Shdr Shdr; > + > + public: > +- section_real(Shdr *, uint8_t *) throw (std::bad_alloc); > ++ section_real(Shdr *, uint8_t *); > + > +- void update(const file &) throw (std::bad_alloc); > ++ void update(const file &); > + }; > + > + template <typename _class, typename _data> > +@@ -147,9 +147,9 @@ namespace Elf > + typedef typename _elfdef<_class>::Shdr Shdr; > + > + public: > +- section_real(Shdr *, uint8_t *) throw (std::bad_alloc); > ++ section_real(Shdr *, uint8_t *); > + > +- void update(const file &) throw (std::bad_alloc); > ++ void update(const file &); > + }; > + > + template <typename _class, typename _data> > +@@ -161,9 +161,9 @@ namespace Elf > + typedef typename _elfdef<_class>::Shdr Shdr; > + > + public: > +- section_real(Shdr *, uint8_t *) throw (std::bad_alloc); > ++ section_real(Shdr *, uint8_t *); > + > +- void update(const file &) throw (std::bad_alloc); > ++ void update(const file &); > + }; > + > + template <typename _class, typename _data> > +@@ -175,9 +175,9 @@ namespace Elf > + typedef typename _elfdef<_class>::Shdr Shdr; > + > + public: > +- section_real(Shdr *, uint8_t *) throw (std::bad_alloc); > ++ section_real(Shdr *, uint8_t *); > + > +- void update(const file &) throw (std::bad_alloc); > ++ void update(const file &); > + }; > + > + template <typename _class, typename _data> > +@@ -189,7 +189,7 @@ namespace Elf > + typedef typename _elfdef<_class>::Shdr Shdr; > + > + public: > +- section_real(Shdr *, uint8_t *) throw (std::bad_alloc); > ++ section_real(Shdr *, uint8_t *); > + }; > + > + template <typename _class, typename _data> > +@@ -220,7 +220,7 @@ namespace Elf > + typedef typename _elfdef<_class>::Phdr Phdr; > + > + public: > +- segment_real (Phdr *, uint8_t *) throw (std::bad_alloc); > ++ segment_real (Phdr *, uint8_t *); > + }; > + > + template <typename _class, typename _data> > +@@ -232,7 +232,7 @@ namespace Elf > + public: > + dynamic_data (Dyn *) throw (); > + > +- void update_string(const section_type<section_type_STRTAB> &) throw > (std::bad_alloc); > ++ void update_string(const section_type<section_type_STRTAB> &); > + }; > + > + template <typename _class, typename _data> > +@@ -244,8 +244,8 @@ namespace Elf > + public: > + symbol_data (Sym *) throw (); > + > +- void update_string(const section_type<section_type_STRTAB> &) throw > (std::bad_alloc); > +- virtual void update_version (const file &, uint16_t) throw > (std::bad_alloc); > ++ void update_string(const section_type<section_type_STRTAB> &); > ++ virtual void update_version (const file &, uint16_t); > + }; > + > + template <typename _class, typename _data> > +@@ -257,7 +257,7 @@ namespace Elf > + > + version_definition_data (Verdef *) throw (); > + > +- void update_string(const section_type<section_type_STRTAB> &) throw > (std::bad_alloc); > ++ void update_string(const section_type<section_type_STRTAB> &); > + }; > + > + template <typename _class, typename _data> > +@@ -269,7 +269,7 @@ namespace Elf > + > + version_requirement_data (Verneed *) throw (); > + > +- void update_string(const section_type<section_type_STRTAB> &) throw > (std::bad_alloc); > ++ void update_string(const section_type<section_type_STRTAB> &); > + }; > + > + template <typename _class, typename _data> > +@@ -280,7 +280,7 @@ namespace Elf > + > + version_requirement_entry_data (Vernaux *, const > version_requirement &) throw (); > + > +- void update_string(const section_type<section_type_STRTAB> &) throw > (std::bad_alloc); > ++ void update_string(const section_type<section_type_STRTAB> &); > + }; > + } > + > diff --git a/meta/recipes-devtools/mklibs/mklibs-native_0.1.44.bb > b/meta/recipes-devtools/mklibs/mklibs-native_0.1.44.bb > index 1784af1f4c..8ecdb17be3 100644 > --- a/meta/recipes-devtools/mklibs/mklibs-native_0.1.44.bb > +++ b/meta/recipes-devtools/mklibs/mklibs-native_0.1.44.bb > @@ -12,6 +12,7 @@ SRC_URI = > "http://snapshot.debian.org/archive/debian/20180828T214102Z/pool/main/ > file://avoid-failure-on-symbol-provided-by-application.patch \ > file://show-GNU-unique-symbols-as-provided-symbols.patch \ > file://fix_cross_compile.patch \ > + file://no-dynamic-exception-specifications.patch \ > " > > SRC_URI[md5sum] = "6b6eeb9b4016c6a7317acc28c89e32cc" > > >
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