首先,最初的原因主要是政治性的 - 添加了基于DWARF的展开的人们.eh_frame希望它成为一个始终存在的功能,因此它可以用于实现除C++异常之外的各种其他东西,包括: backtrace() __attribute__((__cleanup__(f))) __builtin_return_address(n),为 n>0 pthread_cleanup_push,实施的 __attribute__((__cleanup_...
When gcc generates code that handles exceptions, it produces tables that describe how to unwind the stack. These tables are found in the .eh_frame section. The format of the .eh_frame section is very similar to the format of a DWARF .debug_frame section. Unfortunately, it is not precisely...
The DWARF specification requires the CIE/FDE entries in the .eh_frame sections to be aligned to pointer size. However, I incorrectly implemented it as the platform target pointer size, while it's supposed to be the DWARF pointer size specified in the pointer encoding field. Since we use 4-...
Configuredwith:../gcc-4.8.1/configure--prefix=/mingw--host=mingw32--build=mingw32--without-pic--enable-shared--enable-static--with-gnu-ld--enable-lto--enable-libssp--disable-multilib--enable-languages=c,c++,fortran,objc,obj-c++,ada--disable-sjlj-exceptions--with-dwarf2--disable-win32-re...
of the return address. In Dwarf V2, this is a byte, otherwise it is uleb128. It is a byte in gcc 3.3.x 8. Optional CIE varying Present if Augmentation String in Augmentation Section field 4 is not 0. z: size uleb128 Length of the remainder of the ...
Remove unused variable. Error on existing edge at CIE pointer field. Simplify CFI processing in EHFrameEdgeFixer: The code expects DWARFRecordSectionSplitter to split each CFI record into its own b...
问如何找到EH_FRAMEEN经过了大量炼丹的同学都知道，超参数是一个非常玄乎的东西，比如batch size，学习率...