2 Commits

Author	SHA1	Message	Date
Alastair Houghton	8678ead796	[Linux] Improve backtracer ELF/DWARF parsing performance. ... On Linux we use FileImageSource to read data from ELF images. We were doing this in a fairly naive manner, which turns out to be a performance issue with larger statically linked binaries on Linux. Change FileImageSource to use mmap() instead. rdar://117590155	2023-10-30 16:09:36 +00:00
Alastair Houghton	438ab7fa29	[Backtracing][Linux] Add Linux support to the _Backtracing module. ... Use the new module structure rather the old SwiftShims header. This is much cleaner and lets us include operating system headers to get the relevant definitions where possible. Add code to support ELF and DWARF, including decompression using zlib, zstd and liblzma if those turn out to be required and available. rdar://110261712	2023-06-06 16:16:20 +01:00