unicorn/qemu/include
Markus Armbruster 97ad660361
error: On abort, report where the error was created
This is particularly useful when we abort in error_propagate(),
because there the stack backtrace doesn't lead to where the error was
created. Looks like this:

Unexpected error in parse_block_error_action() at .../qemu/blockdev.c:322:
qemu-system-x86_64: -drive if=none,werror=foo: 'foo' invalid write error action
Aborted (core dumped)

Note: to get this example output, I monkey-patched drive_new() to pass
&error_abort to blockdev_init().

To keep the error handling boiler plate from growing even more, all
error_setFOO() become macros expanding into error_setFOO_internal()
with additional __FILE__, __LINE__, __func__ arguments. Not exactly
pretty, but it works.

The macro trickery breaks down when you take the address of an
error_setFOO(). Fortunately, we do that in just one place: qemu-ga's
Windows VSS provider and requester DLL wants to call
error_setg_win32() through a function pointer "to avoid linking glib
to the DLL". Use error_setg_win32_internal() there. The use of the
function pointer is already wrapped in a macro, so the churn isn't
bad.

Code size increases by some 35KiB for me (0.7%). Tolerable. Could be
less if we passed relative rather than absolute source file names to
the compiler, or forwent reporting __func__.

Backports commit 1e9b65bb1bad51735cab6c861c29b592dccabf0e from qemu
2018-02-17 15:23:37 -05:00
..
crypto crypto: move built-in AES implementation into crypto/ 2018-02-17 15:23:17 -05:00
exec exec: Add semihosting stubs 2018-02-17 15:23:33 -05:00
fpu softfloat: expand out STATUS macro 2018-02-12 13:43:13 -05:00
hw apic_internal.h: Include cpu.h directly 2018-02-17 15:23:29 -05:00
qapi error: On abort, report where the error was created 2018-02-17 15:23:37 -05:00
qemu host-util: Add power calculation functions 2018-02-17 15:23:35 -05:00
qom qom: Add recursive version of object_child_for_each 2018-02-17 15:23:35 -05:00
sysemu qemu-common.h: Move Win32 fixups into os-win32.h 2018-02-17 15:23:29 -05:00
config.h import 2015-08-21 15:04:50 +08:00
elf.h fix merge conflicts 2017-03-10 21:04:33 +08:00
glib_compat.h crypto: introduce new module for computing hash digests 2018-02-17 15:23:17 -05:00
qemu-common.h Remove unused qemu_fls function 2018-02-17 15:23:35 -05:00