linux/drivers/firmware/efi/libstub/hidden.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * To prevent the compiler from emitting GOT-indirected (and thus absolute)
 * references to any global symbols, override their visibility as 'hidden'
 */
#pragma GCC visibility push(hidden)
efi/libstub: Use hidden visibility for all source files Instead of setting the visibility pragma for a small set of symbol declarations that could result in absolute references that we cannot support in the stub, declare hidden visibility for all code in the EFI stub, which is more robust and future proof. To ensure that the #pragma is taken into account before any other includes are processed, put it in a header file of its own and include it via the compiler command line using the -include option. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> 2020-02-10 17:02:32 +01:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`/*`
			`* To prevent the compiler from emitting GOT-indirected (and thus absolute)`
			`* references to any global symbols, override their visibility as 'hidden'`
			`*/`
			`#pragma GCC visibility push(hidden)`