fails to build on x32

[arekm]

Hi.
It fails to build on x32 arch:
cm_mem.h: Assembler messages:
cm_mem.h:192: Error: invalid instruction suffix for push' cm_mem.h:195: Error: invalid instruction suffix forpop'
Makefile:835: recipe for target 'libcmrt_la-cm_buffer.lo' failed

http://tnij.org/oeanp5g

[wlin70]

Hi, Arekm,
Verified that g++-4.9.2 can build 01org/cmrt successfully on i386 (32-bit) Ubuntu + 64-bit CPU. I cannot reproduce the problem, what is your ENV ?
Thanks
--Wei

[arekm]

Here it also builds fine on 32bit and 64bit but fails on x32 - https://en.wikipedia.org/wiki/X32_ABI

[arekm]

Something like:

--- src/cm_mem.h~   2015-09-10 01:13:13.000000000 +0200
+++ src/cm_mem.h    2015-09-18 08:18:52.800701307 +0200
@@ -183,6 +183,7 @@
    __try {
 #endif

+#if defined(__x86_64) && !defined(__ILP32__)
        if (sizeof(void *) == 4) {
            unsigned int local_eax, local_ebx, local_ecx, local_edx;
            __asm__ __volatile__("pushl %%ebx      \n\t" "cpuid  \n\t" "movl %%ebx, %1   \n\t" "popl %%ebx \n\t"    /* restore the old %ebx */
@@ -194,7 +195,9 @@
            CPUInfo[1] = local_ebx;
            CPUInfo[2] = local_ecx;
            CPUInfo[3] = local_edx;
-       } else {
+       } else
+#endif
+       {
            uint64_t local_rax, local_rbx, local_rcx, local_rdx;
            __asm__ __volatile__("push %%rbx      \n\t" "cpuid           \n\t" "mov %%rbx, %1   \n\t" "pop %%rbx       \n\t"    /* restore the old %ebx */
                         :"=a"(local_rax), "=r"(local_rbx),

works (== compiles). That sizeof autodetection has trouble with x32 abi.