tree 0f977757d77fc91dffafab70251ad9ffe45bdcc0
parent e1efd2a2d7518c05c78dd870999201582b1e0fc7
author Willy Tarreau <w@1wt.eu> 1649948232 +0200
committer Willy Tarreau <w@1wt.eu> 1649948232 +0200
encoding latin1

BUILD: compiler: use a more portable set of asm(".weak") statements

The two recent patches b12966af1 ("BUILD: debug: mark the
__start_mem_stats/__stop_mem_stats symbols as weak") and 2a06e248f
("BUILD: initcall: mark the __start_i_* symbols as weak, not global")
aimed at fixing a build warning and resulted in a build breakage on
MacOS which doesn't have a ".weak" asm statement.

We've already had MacOS-specific asm() statements for section names, so
this patch continues on this trend by moving HA_GLOBL() to compiler.h
and using ".globl" on MacOS since apparently nobody complains there.

It is debatable whether to expose this only when !USE_OBSOLETE_LINKER
or all the time, but since these are just macroes it's no big deal to
let them be available when needed and let the caller decide on the
build conditions.

If any of the patches above is backported, this one will need to as
well.