From: Rich Felker <dalias@aerifal.cx>
Date: Thu, 15 Oct 2015 04:55:41 +0000 (-0400)
Subject: add comment documenting hard-coded opcode for reading mips thread pointer
X-Git-Tag: v1.1.12~8
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=11da520c7af5b190e69c0906c6e95000c4e59f33;p=oweals%2Fmusl.git

add comment documenting hard-coded opcode for reading mips thread pointer
---

diff --git a/arch/mips/pthread_arch.h b/arch/mips/pthread_arch.h
index 904a2489..93edbd4e 100644
--- a/arch/mips/pthread_arch.h
+++ b/arch/mips/pthread_arch.h
@@ -5,6 +5,7 @@ static inline struct pthread *__pthread_self()
 	__asm__ __volatile__ (".word 0x7c03e83b ; move %0, $3" : "=r" (tp) : : "$3" );
 #else
 	register char *tp __asm__("$3");
+	/* rdhwr $3,$29 */
 	__asm__ __volatile__ (".word 0x7c03e83b" : "=r" (tp) );
 #endif
 	return (pthread_t)(tp - 0x7000 - sizeof(struct pthread));