| Message ID | 1392925373-14393-1-git-send-email-peter.maydell@linaro.org |
|---|---|
| State | Accepted |
| Commit | 774d566cdbebb916af9760dac629aa7c1adf9d3d |
| Headers | show |
On 20 February 2014 21:08, Richard Henderson <rth@twiddle.net> wrote: > On 02/20/2014 01:42 PM, Peter Maydell wrote: >> Win32 doesn't have a cpuid.h, and MacOSX may have one but without >> the __cpuid() function we use, which means that commit 9d2eec20 >> broke the build for those platforms. Fix this by tightening up >> our configure cpuid.h check to test that the functions we need >> are present, and adding some missing #ifdef guards in >> tcg/i386/tcg-target.c. >> >> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> >> --- >> Changes v1->v2: fix typo in commit message, add __cpuid_count() >> to the configure test >> >> configure | 13 ++++++++++++- >> tcg/i386/tcg-target.c | 4 +++- >> 2 files changed, 15 insertions(+), 2 deletions(-) > > Reviewed-by: Richard Henderson <rth@twiddle.net> Thanks; applied to master. -- PMM
diff --git a/configure b/configure index 4648117..79eb54c 100755 --- a/configure +++ b/configure @@ -3564,7 +3564,18 @@ cpuid_h=no cat > $TMPC << EOF #include <cpuid.h> int main(void) { - return 0; + unsigned a, b, c, d; + int max = __get_cpuid_max(0, 0); + + if (max >= 1) { + __cpuid(1, a, b, c, d); + } + + if (max >= 7) { + __cpuid_count(7, 0, a, b, c, d); + } + + return 0; } EOF if compile_prog "" "" ; then diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c index fef1717..f832282 100644 --- a/tcg/i386/tcg-target.c +++ b/tcg/i386/tcg-target.c @@ -115,7 +115,7 @@ static const int tcg_target_call_oarg_regs[] = { is available. */ #if TCG_TARGET_REG_BITS == 64 # define have_cmov 1 -#elif defined(CONFIG_CPUID_H) +#elif defined(CONFIG_CPUID_H) && defined(bit_CMOV) static bool have_cmov; #else # define have_cmov 0 @@ -2295,6 +2295,7 @@ static void tcg_target_qemu_prologue(TCGContext *s) static void tcg_target_init(TCGContext *s) { +#ifdef CONFIG_CPUID_H unsigned a, b, c, d; int max = __get_cpuid_max(0, 0); @@ -2323,6 +2324,7 @@ static void tcg_target_init(TCGContext *s) have_bmi2 = (b & bit_BMI2) != 0; #endif } +#endif if (TCG_TARGET_REG_BITS == 64) { tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff);
Win32 doesn't have a cpuid.h, and MacOSX may have one but without the __cpuid() function we use, which means that commit 9d2eec20 broke the build for those platforms. Fix this by tightening up our configure cpuid.h check to test that the functions we need are present, and adding some missing #ifdef guards in tcg/i386/tcg-target.c. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- Changes v1->v2: fix typo in commit message, add __cpuid_count() to the configure test configure | 13 ++++++++++++- tcg/i386/tcg-target.c | 4 +++- 2 files changed, 15 insertions(+), 2 deletions(-)