Add the L() macro for local labels to <private/bionic_asm.h>.
This lets us remove the riscv64 "sys/asm.h" file. It turns out everyone
loves this macro --- tons of x86 and arm assembler is already using it!
I'll clean up some of the now-duplicate definitions separately, and I'll
move the assembler we wrote ourselves over to this macro (rather than
the current `.L_foo` style) too.
Test: built riscv64 _and_ arm/arm64 _and_ x86/x86-64
Change-Id: If3f93c9b71094a8bed1fd1bb81bb83ec60ce409e
diff --git a/libc/private/bionic_asm.h b/libc/private/bionic_asm.h
index 78e5046..f9d85b2 100644
--- a/libc/private/bionic_asm.h
+++ b/libc/private/bionic_asm.h
@@ -90,3 +90,5 @@
#define NOTE_GNU_PROPERTY() \
__bionic_asm_custom_note_gnu_section()
+
+#define L(__label) .L##__label