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| author | Alex Bennée <alex.bennee@linaro.org> | 2020-03-16 17:21:40 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2020-03-17 17:38:38 +0000 |
| commit | b7b8756a9cd0cd63488a9d9fc9aee5400574c30b (patch) | |
| tree | a35c3fd3703cd0ef75843c925929dc62876fc7f8 /target | |
| parent | 462474d760cd94933ff7d5cba39de92fb0985c1a (diff) | |
| download | qemu-b7b8756a9cd0cd63488a9d9fc9aee5400574c30b.zip qemu-b7b8756a9cd0cd63488a9d9fc9aee5400574c30b.tar.gz qemu-b7b8756a9cd0cd63488a9d9fc9aee5400574c30b.tar.bz2 | |
target/i386: use gdb_get_reg helpers
This is cleaner than poking memory directly and will make later
clean-ups easier.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200316172155.971-14-alex.bennee@linaro.org>
Diffstat (limited to 'target')
| -rw-r--r-- | target/i386/gdbstub.c | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/target/i386/gdbstub.c b/target/i386/gdbstub.c index 572ead6..e4d8cb6 100644 --- a/target/i386/gdbstub.c +++ b/target/i386/gdbstub.c @@ -98,26 +98,22 @@ int x86_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) return gdb_get_reg64(mem_buf, env->regs[gpr_map[n]] & 0xffffffffUL); } else { - memset(mem_buf, 0, sizeof(target_ulong)); - return sizeof(target_ulong); + return gdb_get_regl(mem_buf, 0); } } else { return gdb_get_reg32(mem_buf, env->regs[gpr_map32[n]]); } } else if (n >= IDX_FP_REGS && n < IDX_FP_REGS + 8) { -#ifdef USE_X86LDOUBLE - /* FIXME: byteswap float values - after fixing fpregs layout. */ - memcpy(mem_buf, &env->fpregs[n - IDX_FP_REGS], 10); -#else - memset(mem_buf, 0, 10); -#endif - return 10; + floatx80 *fp = (floatx80 *) &env->fpregs[n - IDX_FP_REGS]; + int len = gdb_get_reg64(mem_buf, cpu_to_le64(fp->low)); + len += gdb_get_reg16(mem_buf + len, cpu_to_le16(fp->high)); + return len; } else if (n >= IDX_XMM_REGS && n < IDX_XMM_REGS + CPU_NB_REGS) { n -= IDX_XMM_REGS; if (n < CPU_NB_REGS32 || TARGET_LONG_BITS == 64) { - stq_p(mem_buf, env->xmm_regs[n].ZMM_Q(0)); - stq_p(mem_buf + 8, env->xmm_regs[n].ZMM_Q(1)); - return 16; + return gdb_get_reg128(mem_buf, + env->xmm_regs[n].ZMM_Q(0), + env->xmm_regs[n].ZMM_Q(1)); } } else { switch (n) { @@ -290,10 +286,9 @@ int x86_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) return 4; } } else if (n >= IDX_FP_REGS && n < IDX_FP_REGS + 8) { -#ifdef USE_X86LDOUBLE - /* FIXME: byteswap float values - after fixing fpregs layout. */ - memcpy(&env->fpregs[n - IDX_FP_REGS], mem_buf, 10); -#endif + floatx80 *fp = (floatx80 *) &env->fpregs[n - IDX_FP_REGS]; + fp->low = le64_to_cpu(* (uint64_t *) mem_buf); + fp->high = le16_to_cpu(* (uint16_t *) (mem_buf + 8)); return 10; } else if (n >= IDX_XMM_REGS && n < IDX_XMM_REGS + CPU_NB_REGS) { n -= IDX_XMM_REGS; |