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runtime/cgo: look for android_get_device_api_level in libc.so

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The presence of the android_get_device_api_level symbol is used to
detect Android Q or later. Use the suggestion by Ryan Prichard and
look for it in libc.so and not in the entire program where someone
else might have defined it.

Manually tested on an Android Q amd64 emulator and arm64 Pixel.

Updates #29674

Change-Id: Iaef35d8f8910037b3690aa21f319e216a05a9a73
Reviewed-on: https://go-review.googlesource.com/c/go/+/170127
Run-TryBot: Elias Naur <mail@eliasnaur.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Elias Naur 2019-04-02 23:58:43 +02:00
parent 814c97b313
commit fc7ac2e8c0
1 changed files with 1 additions and 1 deletions
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2
src/runtime/cgo/gcc_android.c
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@ -50,7 +50,7 @@ inittls(void **tlsg, void **tlsbase)
void *handle, *get_ver;
// Check for Android Q where we can use the free TLS_SLOT_APP slot.
handle = dlopen(NULL, RTLD_LAZY);
handle = dlopen("libc.so", RTLD_LAZY);
if (handle == NULL) {
fatalf("inittls: failed to dlopen main program");
return;