Commit Graph

7 Commits

Author SHA1 Message Date
Jakob Hasse
ba11976efb [C++]: wrapper functions around unwind code
* Replaced all C++ exception related
  functions with wrappers if -fno-exception
  is used. This prevents linking of the
  corresponding code in libgcc. The code
  size will decrease by around 7-9 KB when
  building with -fno-exception.
* added no except test app

Closes https://github.com/espressif/esp-idf/pull/5380
Closes https://github.com/espressif/esp-idf/issues/5363
Closes https://github.com/espressif/esp-idf/issues/5224
Closes IDFGH-3153
Closes IDF-2577
2021-06-01 14:51:15 +08:00
Ivan Grokhotkov
9a2af7ae33 global: remove gcc 5.2 support 2019-11-20 11:17:27 +01:00
Roland Dobai
c5000c83d2 Rename Kconfig options (root) 2019-05-21 09:09:01 +02:00
Alexey Gerenkov
e0f7e196f2 cxx: don’t define stubs for __throw_* functions
If exception support is disabled in IDF, and libstdc++ tries to throw
an exception, it will call __cxa_allocate_exception which is replaced
with abort in IDF.

We have a dramatically size reduction of the RO-section in binary when using '__throw_'-stubs in GCC5
In the case of using GCC8, we are faced with 'multiple definition' errors when using '__throw_'-stubs.
Good that we don't have the size problem due to gcc8
2018-09-20 18:53:15 +08:00
Alexey Gerenkov
c2dc09304c gcc8_newlib3: Compilation warnings and errors not specific to newlib v3 2018-07-09 13:22:24 +03:00
Amey Inamdar
78ed138453 cxx_exceptions: Add missing stubs for cxx exceptions with exceptions
disabled

The misssing stubs get pulled in from the toolchain's libstdc++ also
causing to pull in defined stubs. This results in redefinition of
symbols. Fixing it by simply adding the missing stubs when exceptions
are disabled.

Signed-off-by: Amey Inamdar <amey.inamdar@gmail.com>
2017-11-21 12:41:49 +05:30
Angus Gratton
9c7477ef34 cxx: Add KConfig option for C++ exceptions, disable by default
Fixes https://github.com/espressif/esp-idf/issues/1072

(Additional 20KB is still used if C++ exception support is enabled in
menuconfig.)
2017-10-17 15:29:25 +08:00