From a7c587f5cd390f92970c2c4b5a538ac27ea3f119 Mon Sep 17 00:00:00 2001 From: Sergey Matyukevich Date: Tue, 20 Sep 2022 16:14:20 +0400 Subject: arc: add asm macros Add a header file with assembler macros to be able to handle in one place the differences between ARCv2 and ARCv3 ISAs. It is a preparatory step before the introduction of support for ARCv3 CPUs. Signed-off-by: Sergey Matyukevich Signed-off-by: Pavel Kozlov --- ldso/ldso/arc/resolve.S | 45 ++++++++++++++++++++++---------------------- libc/sysdeps/linux/arc/asm.h | 28 +++++++++++++++++++++++++++ 2 files changed, 51 insertions(+), 22 deletions(-) create mode 100644 libc/sysdeps/linux/arc/asm.h diff --git a/ldso/ldso/arc/resolve.S b/ldso/ldso/arc/resolve.S index 891f66b97..2b66c69cb 100644 --- a/ldso/ldso/arc/resolve.S +++ b/ldso/ldso/arc/resolve.S @@ -4,6 +4,7 @@ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. */ +#include #include #include @@ -12,30 +13,30 @@ ; r10-r12 are already clobbered by PLTn, PLT0 thus neednot be saved .macro SAVE_CALLER_SAVED - push_s r0 - push_s r1 - push_s r2 - push_s r3 - st.a r4, [sp, -4] - st.a r5, [sp, -4] - st.a r6, [sp, -4] - st.a r7, [sp, -4] - st.a r8, [sp, -4] - st.a r9, [sp, -4] - push_s blink + PUSHR_S r0 + PUSHR_S r1 + PUSHR_S r2 + PUSHR_S r3 + PUSHR r4 + PUSHR r5 + PUSHR r6 + PUSHR r7 + PUSHR r8 + PUSHR r9 + PUSHR_S blink .endm .macro RESTORE_CALLER_SAVED_BUT_R0 - ld.ab blink,[sp, 4] - ld.ab r9, [sp, 4] - ld.ab r8, [sp, 4] - ld.ab r7, [sp, 4] - ld.ab r6, [sp, 4] - ld.ab r5, [sp, 4] - ld.ab r4, [sp, 4] - pop_s r3 - pop_s r2 - pop_s r1 + POPR blink + POPR r9 + POPR r8 + POPR r7 + POPR r6 + POPR r5 + POPR r4 + POPR_S r3 + POPR_S r2 + POPR_S r1 .endm ; Upon entry, PLTn, which led us here, sets up the following regs @@ -53,5 +54,5 @@ ENTRY(_dl_linux_resolve) RESTORE_CALLER_SAVED_BUT_R0 j_s.d [r0] ; r0 has resolved function addr - pop_s r0 ; restore first arg to resolved call + POPR_S r0 ; restore first arg to resolved call END(_dl_linux_resolve) diff --git a/libc/sysdeps/linux/arc/asm.h b/libc/sysdeps/linux/arc/asm.h new file mode 100644 index 000000000..f98eb239f --- /dev/null +++ b/libc/sysdeps/linux/arc/asm.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2022, Synopsys, Inc. (www.synopsys.com) + * + * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. + */ + +#ifndef _ARC_ASM_H +#define _ARC_ASM_H + + +.macro PUSHR reg + push \reg +.endm + +.macro PUSHR_S reg + push_s \reg +.endm + +.macro POPR reg + pop \reg +.endm + +.macro POPR_S reg + pop_s \reg +.endm + + +#endif /* _ARC_ASM_H */ -- cgit v1.2.3