During the conversion to the gdb_get_reg128 helpers the high and low parts of the XMM register where inadvertently swapped. This causes reads of the register to report the incorrect value to gdb.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/971 Fixes: b7b8756a9c (target/i386: use gdb_get_reg helpers) Signed-off-by: Alex Bennée <alex.ben...@linaro.org> Reviewed-by: Richard Henderson <richard.hender...@linaro.org> Cc: qemu-sta...@nongnu.org --- target/i386/gdbstub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/i386/gdbstub.c b/target/i386/gdbstub.c index 098a2ad15a..c3a2cf6f28 100644 --- a/target/i386/gdbstub.c +++ b/target/i386/gdbstub.c @@ -129,8 +129,8 @@ int x86_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) n -= IDX_XMM_REGS; if (n < CPU_NB_REGS32 || TARGET_LONG_BITS == 64) { return gdb_get_reg128(mem_buf, - env->xmm_regs[n].ZMM_Q(0), - env->xmm_regs[n].ZMM_Q(1)); + env->xmm_regs[n].ZMM_Q(1), + env->xmm_regs[n].ZMM_Q(0)); } } else { switch (n) { -- 2.30.2
