From: Sergey Bugaev <bugaevc@gmail.com>
To: libc-alpha@sourceware.org
Cc: bug-hurd@gnu.org, Samuel Thibault <samuel.thibault@gnu.org>
Subject: [PATCH 1/3] cdefs.h: Define __COLD
Date: Sat, 29 Apr 2023 16:12:21 +0300 [thread overview]
Message-ID: <20230429131223.2507236-1-bugaevc@gmail.com> (raw)
This expands to __attribute__ ((cold)) when supported. It should be
used to mark up functions that are invoked rarely.
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
---
I can change __COLD to __attribute_cold__ if that is preferred.
misc/sys/cdefs.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 23ec0ebd..8eec4b94 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -98,6 +98,12 @@
# endif
# endif
+# if __GNUC_PREREQ (4, 3) || __glibc_has_attribute (__cold__)
+# define __COLD __attribute__ ((__cold__))
+# else
+# define __COLD
+# endif
+
#else /* Not GCC or clang. */
# if (defined __cplusplus \
--
2.40.1
next reply other threads:[~2023-04-29 13:12 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-29 13:12 Sergey Bugaev [this message]
2023-04-29 13:12 ` [PATCH 2/3] hurd: Mark error functions as __COLD Sergey Bugaev
2023-04-29 15:04 ` Samuel Thibault
2023-04-29 13:12 ` [PATCH 3/3] Mark various cold " Sergey Bugaev
2023-04-29 15:06 ` Samuel Thibault
2023-05-01 16:15 ` Siddhesh Poyarekar
2023-05-01 17:38 ` Samuel Thibault
2023-05-01 21:52 ` Cristian Rodríguez
2023-05-01 21:54 ` Samuel Thibault
2023-05-02 6:45 ` Sergey Bugaev
2023-04-29 13:20 ` [PATCH] cdefs.h: Define __COLD Sergey Bugaev
2023-04-29 15:02 ` Samuel Thibault
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