From eb8831a1416ab2ee8123b3add78421c2aa316b39 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Wed, 19 Apr 2023 04:29:10 +0100
Subject: Rename attribute macros to namespaced RC_*

This conflicts with linux-headers which uses __unused for some padding members
on ppc64le at least.

Closes: https://github.com/OpenRC/openrc/issues/622
---
 src/shared/_usage.c  |  4 ++--
 src/shared/helpers.h | 31 ++++++++++---------------------
 2 files changed, 12 insertions(+), 23 deletions(-)

(limited to 'src/shared')

diff --git a/src/shared/_usage.c b/src/shared/_usage.c
index 76e2ab84..ed471dd2 100644
--- a/src/shared/_usage.c
+++ b/src/shared/_usage.c
@@ -36,7 +36,7 @@ void set_quiet_options(void)
 	}
 }
 
-_noreturn void show_version(void)
+RC_NORETURN void show_version(void)
 {
 	const char *systype = NULL;
 
@@ -51,7 +51,7 @@ _noreturn void show_version(void)
 	exit(EXIT_SUCCESS);
 }
 
-_noreturn void usage(int exit_status)
+RC_NORETURN void usage(int exit_status)
 {
 	const char * const has_arg[] = { "", "<arg>", "[arg]" };
 	int i;
diff --git a/src/shared/helpers.h b/src/shared/helpers.h
index 0e9115e4..0303937b 100644
--- a/src/shared/helpers.h
+++ b/src/shared/helpers.h
@@ -30,20 +30,9 @@
 
 #define UNCONST(a)		((void *)(unsigned long)(const void *)(a))
 
-#ifdef lint
-# define _unused
-#endif
-#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
-# define _dead __attribute__((__noreturn__))
-# define _noreturn __attribute__ ((__noreturn__))
-# define _unused __attribute__((__unused__))
-# define _xasprintf(a, b)  __attribute__((__format__(__printf__, a, b)))
-#else
-# define _dead
-# define _noreturn
-# define _unused
-# define _xasprintf(a, b)
-#endif
+#define RC_UNUSED __attribute__((__unused__))
+#define RC_NORETURN __attribute__((__noreturn__))
+#define RC_PRINTF(a, b)  __attribute__((__format__(__printf__, a, b)))
 
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
 
@@ -65,7 +54,7 @@
 	} while (/* CONSTCOND */ 0)
 #endif
 
-_unused static void *xmalloc (size_t size)
+RC_UNUSED static void *xmalloc (size_t size)
 {
 	void *value = malloc(size);
 
@@ -76,7 +65,7 @@ _unused static void *xmalloc (size_t size)
 	/* NOTREACHED */
 }
 
-_unused static void *xrealloc(void *ptr, size_t size)
+RC_UNUSED static void *xrealloc(void *ptr, size_t size)
 {
 	void *value = realloc(ptr, size);
 
@@ -87,7 +76,7 @@ _unused static void *xrealloc(void *ptr, size_t size)
 	/* NOTREACHED */
 }
 
-_unused static char *xstrdup(const char *str)
+RC_UNUSED static char *xstrdup(const char *str)
 {
 	char *value;
 
@@ -109,7 +98,7 @@ _unused static char *xstrdup(const char *str)
  * basename_c never modifies the argument. As such, if there is a trailing
  * slash then an empty string is returned.
  */
-_unused static const char *basename_c(const char *path)
+RC_UNUSED static const char *basename_c(const char *path)
 {
 	const char *slash = strrchr(path, '/');
 
@@ -118,14 +107,14 @@ _unused static const char *basename_c(const char *path)
 	return (path);
 }
 
-_unused static bool exists(const char *pathname)
+RC_UNUSED static bool exists(const char *pathname)
 {
 	struct stat buf;
 
 	return (stat(pathname, &buf) == 0);
 }
 
-_unused static bool existss(const char *pathname)
+RC_UNUSED static bool existss(const char *pathname)
 {
 	struct stat buf;
 
@@ -140,7 +129,7 @@ _unused static bool existss(const char *pathname)
  * functions to handle memory allocation.
  * this function was originally written by Mike Frysinger.
  */
-_unused _xasprintf(2,3) static int xasprintf(char **strp, const char *fmt, ...)
+RC_UNUSED RC_PRINTF(2,3) static int xasprintf(char **strp, const char *fmt, ...)
 {
 	va_list ap;
 	int len;
-- 
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