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target/arm: use official org.gnu.gdb.aarch64.sve layout for registers

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While GDB can work with any XML description given to it there is
special handling for SVE registers on the GDB side which makes the
users life a little better. The changes aren't that major and all the
registers save the $vg reported the same. All that changes is:

  - report org.gnu.gdb.aarch64.sve
  - use gdb nomenclature for names and types
  - minor re-ordering of the types to match reference
  - re-enable ieee_half (as we know gdb supports it now)
  - $vg is now a 64 bit int
  - check $vN and $zN aliasing in test

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Machado <luis.machado@linaro.org>
Message-Id: <20210108224256.2321-11-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2021-01-08 22:42:46 +00:00
parent b9e10c6c75
commit 797920b952
3 changed files with 41 additions and 47 deletions
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11
tests/tcg/aarch64/gdbstub/test-sve-ioctl.py
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@ -40,6 +40,17 @@ class TestBreakpoint(gdb.Breakpoint):
except gdb.error:
report(False, "checking zregs (out of range)")
# Check the aliased V registers are set and GDB has correctly
# created them for us having recognised and handled SVE.
try:
for i in range(0, 16):
val_z = gdb.parse_and_eval("$z0.b.u[%d]" % i)
val_v = gdb.parse_and_eval("$v0.b.u[%d]" % i)
report(int(val_z) == int(val_v),
"v0.b.u[%d] == z0.b.u[%d]" % (i, i))
except gdb.error:
report(False, "checking vregs (out of range)")
def run_test():
"Run through the tests one by one"