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The curated list was written from the procs/ directory listing. Two of the
twenty names were wrong, and wrong here is not a soft failure: IDA REFUSES to
open the database (rc=4) with nothing useful said. The load dialog would have
handed people a dead end from inside the UI that exists to rescue them — the
same silent-failure class the dialog was built to kill.
h8 -> h8300 (h8.so is the module FILENAME, not a processor name)
sparc -> sparcb / sparcl (and SPARC has endianness variants, like MIPS/PPC)
Also probed the aliases people reach for first: arm64, aarch64, mips, m68k are
all invalid. 'arm' covers AArch64 (verified: an AArch64 blob analyses to 35
functions under -parm), so those names now live in the human labels, where the
filter still finds them — typing "arm64" finds ARM, "m68k" finds 68k, "mips"
finds both endiannesses.
tools/verify_procs.py does the check: open a scratch blob with -p<name>, read
back inf_get_procname(), compare. Fresh temp dir per name, because once a
database exists IDA ignores the load switches and every name after the first
would "pass". 21/21 verified.
tests: +11 formats, including the verified-set guard (adding a processor without
re-running the script fails on purpose) and checks that the rejected aliases are
NOT offered but ARE still findable by typing them. 32/0 formats, 199/0 scenarios.
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Last commit let you SAY how to load a blob. This one notices when you should
have. Interactive IDA pops a dialog when no loader matches; we silently loaded
as x86 at 0 and analysed to nothing, so the flag only helped people who already
knew they needed it — which is exactly the people who don't need help.
formats.sniff() recognises the formats IDA definitely handles (ELF, PE, Mach-O,
dex, wasm, ar, COFF, Intel HEX, S-records). Anything else gets
LoadOptionsScreen: a filterable processor list with human labels, a load-address
field, Enter to accept, Esc to load it the way IDA would have anyway.
Deliberate asymmetry: the sniff only claims formats it is sure about. A false
"unknown" costs one dismissible dialog; a false "known" is the silent wrong
answer this exists to kill. Esc is always an escape hatch.
The list offers 20 processors, not IDA's 73 — most of the rest are museum
pieces, and a name typed into the filter that matches nothing is taken literally
so nothing is actually unreachable. Endianness is spelled out (arm vs armb)
because getting it backwards is the most common route to zero functions.
Asked only when nobody has answered yet: not with --processor, not in project
mode (entries carry their own), and not when a database exists — the .i64
already records how the image was loaded.
Textual trap worth recording: the screen stored the file size in self._size,
which is Widget's own backing field for outer_size. Assigning an int to it
crashes layout with "'int' object has no attribute 'region'" from deep inside
_set_dirty, nowhere near the cause. Same family as the _render collision.
The paragraph conversion now lives in exactly one place (formats.load_args);
BinaryRef and launch both call it.
Verified on a real AArch64 blob: dialog appears, filtering to "arm" leaves two
entries, base 0x8000000 accepted -> "-parm -b800000" -> 35 functions at
0x8002440. An ELF never asks, and neither does a blob that already has a .i64.
tests: new tests/test_formats.py (21) and a load_options scenario asserting the
dialog stays out of the way for a recognised binary. 199/0 scenarios, 39/0
project, 30/0 project UI, 36/0 index, 27/0 pool, 21/0 formats.
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