Commit f515443f authored by Arun Raghavan's avatar Arun Raghavan

build-sys: meson: Fixes for some ARM compiler checks

parent d830c666
......@@ -430,19 +430,21 @@ elif host_machine.cpu_family() == 'arm'
if host_machine.system() == 'linux' and get_option('atomic-arm-linux-helpers')
cdata.set('ATOMIC_ARM_LINUX_HELPERS', 1)
else
armatomictest = '''void func() {
armatomictest = '''int func() {
volatile int a=0;
int o=0, n=1, r;
asm volatile ("ldrex %0, [%1]\n"
asm volatile (
"ldrex %0, [%1]\n"
"subs %0, %0, %2\n"
"strexeq %0, %3, [%1]\n"
: "=&r" (r)
: "r" (&a), "Ir" (o), "r" (n)
: "cc");
return (a==1 ? 0 : -1);
}
'''
if cc.compiles(aratomictest)
if cc.compiles(armatomictest)
cdata.set('ATOMIC_ARM_INLINE_ASM', 1)
else
need_libatomic_ops = true
......@@ -470,7 +472,7 @@ endif
# ARM checks
# ARMV6 instructions we need
if host_machine.cpu_family() == 'arm'
armv6test = '''void func() {
armv6test = '''int func() {
volatile int a = -60000, b = 0xaaaabbbb, c = 0xccccdddd;
asm volatile ("ldr r0, %2 \n"
"ldr r2, %3 \n"
......@@ -483,6 +485,7 @@ if host_machine.cpu_family() == 'arm'
: "m" (a), "m" (b), "m" (c)
: "r0", "r1", "r2", "r3", "cc");
return (a == -128 && b == 0xaabbdddd) ? 0 : -1;
}
'''
if cc.compiles(armv6test)
......
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