local-patches: sync with xtensa gcc call0 ABI support #1
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Fixed: - possible a7/a15 corruption in functions with 6+ argument words and frame pointer enabled; - vararg functions; - setjmp/longjmp; - nested functions; - profiling with -pg option (_mcount call); A bit improved code generation for SP manipulations. Known broken: - __builtin_return_address; - __builtin_frame_address for frames other than current. Unknown: - C++ exception handling. Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
xtensa gdb currently cannot query/set privilegad registers. It makes some sense when gdb is used natively in linux, but not when it's used with gdbstub on native target (or on QEMU). Mark all special registers as non-privileged to allow gdb to work with QEMU. Signed-off-by: Max Filippov <[email protected]>
This matches the version that will be submitted upstream. Signed-off-by: Max Filippov <[email protected]>
Fixed: - __builtin_return_address(0) is now correct; - C++ exception handling. Known broken: - __builtin_frame_address for frames other than current. Likely won't fix. Signed-off-by: Max Filippov <[email protected]>
Fixed: - too big minimal data alignment: now aligns naturally when compiling with -Os. Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
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Fixed:
frame pointer enabled;
A bit improved code generation for SP manipulations.
Known broken:
Unknown:
Signed-off-by: Max Filippov [email protected]