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runtime: remove checkgoarm function

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Nothing in libgo calls checkgoarm, and it relies on a variable, goarm,
    that is not set.
    
    Reviewed-on: https://go-review.googlesource.com/c/140057

From-SVN: r264872
This commit is contained in:
Ian Lance Taylor 2018-10-05 14:21:01 +00:00
parent a2a86641b7
commit cbba2e1e47
2 changed files with 1 additions and 20 deletions
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2
gcc/go/gofrontend/MERGE
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@ -1,4 +1,4 @@
bde5ac90e0b4efdf3e9a4d72af4eb23250608611
9f4cf23e716bcf65e071260afa032a64acd3fdde
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.

19
libgo/go/runtime/os_linux_arm.go
View file

@ -19,25 +19,6 @@ var armArch uint8 = 6 // we default to ARMv6
var hwcap uint32 // set by archauxv
var hardDiv bool // set if a hardware divider is available
func checkgoarm() {
// On Android, /proc/self/auxv might be unreadable and hwcap won't
// reflect the CPU capabilities. Assume that every Android arm device
// has the necessary floating point hardware available.
if GOOS == "android" {
return
}
if goarm > 5 && hwcap&_HWCAP_VFP == 0 {
print("runtime: this CPU has no floating point hardware, so it cannot run\n")
print("this GOARM=", goarm, " binary. Recompile using GOARM=5.\n")
exit(1)
}
if goarm > 6 && hwcap&_HWCAP_VFPv3 == 0 {
print("runtime: this CPU has no VFPv3 floating point hardware, so it cannot run\n")
print("this GOARM=", goarm, " binary. Recompile using GOARM=5 or GOARM=6.\n")
exit(1)
}
}
func archauxv(tag, val uintptr) {
switch tag {
case _AT_RANDOM: