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Recording may fail for a variety of reasons. Improve the error messages by stating more clearly what operation failed and try to give a reason why it failed. Further align the error messages for native and remote debugging. Changes to v1: - move helper classes into gdb/common/ - add unit tests for helpers - simplify helpers Markus Metzger (7): common: add scoped_fd common: add scoped_mmap btrace: prepare for throwing exceptions when enabling btrace btrace, gdbserver: use exceptions to convey btrace enable/disable errors btrace, gdbserver: remove the to_supports_btrace target method btrace: improve enable error messages btrace: check perf_event_paranoid gdb/Makefile.in | 2 + gdb/btrace.c | 3 - gdb/common/scoped_fd.h | 60 +++++ gdb/common/scoped_mmap.h | 76 ++++++ gdb/gdbserver/linux-low.c | 2 - gdb/gdbserver/nto-low.c | 1 - gdb/gdbserver/server.c | 80 +++---- gdb/gdbserver/spu-low.c | 1 - gdb/gdbserver/target.h | 7 - gdb/gdbserver/win32-low.c | 1 - gdb/nat/linux-btrace.c | 427 ++++++++-------------------------- gdb/nat/linux-btrace.h | 3 - gdb/remote.c | 32 --- gdb/target-delegates.c | 33 --- gdb/target.c | 8 - gdb/target.h | 7 - gdb/unittests/scoped_fd-selftests.c | 90 +++++++ gdb/unittests/scoped_mmap-selftests.c | 92 ++++++++ gdb/x86-linux-nat.c | 20 +- 19 files changed, 458 insertions(+), 487 deletions(-) create mode 100644 gdb/common/scoped_fd.h create mode 100644 gdb/common/scoped_mmap.h create mode 100644 gdb/unittests/scoped_fd-selftests.c create mode 100644 gdb/unittests/scoped_mmap-selftests.c -- 1.8.3.1
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