diff options
| author | Sergey Matyukevich <sergey.matyukevich@synopsys.com> | 2022-09-20 16:14:21 +0400 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2022-09-27 12:01:23 +0200 |
| commit | de6be7bc60f190a0d746945a3a5a143bc93a1a65 (patch) | |
| tree | c0782171a037b778f09a8dd19b8cd170c88ce702 /libc/sysdeps/linux/arc | |
| parent | a7c587f5cd390f92970c2c4b5a538ac27ea3f119 (diff) | |
arc: add support for ARCv3 32-bit processors
New ARCv3 ISA includes both 64-bit and 32-bit CPU family.
This patch adds support for 32-bit ARCv3 HS5x processors.
Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com>
Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
Diffstat (limited to 'libc/sysdeps/linux/arc')
| -rw-r--r-- | libc/sysdeps/linux/arc/asm.h | 24 | ||||
| -rw-r--r-- | libc/sysdeps/linux/arc/bits/syscalls.h | 4 | ||||
| -rw-r--r-- | libc/sysdeps/linux/arc/crt1.S | 4 |
3 files changed, 29 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/arc/asm.h b/libc/sysdeps/linux/arc/asm.h index f98eb239f..f15dff841 100644 --- a/libc/sysdeps/linux/arc/asm.h +++ b/libc/sysdeps/linux/arc/asm.h @@ -7,6 +7,29 @@ #ifndef _ARC_ASM_H #define _ARC_ASM_H +#if defined (__ARC64_ARCH32__) + +.macro PUSHR reg + push \reg +.endm + +.macro PUSHR_S reg + push \reg +.endm + +.macro POPR reg + pop \reg +.endm + +.macro POPR_S reg + pop \reg +.endm + +#elif defined (__ARC64_ARCH64__) + +# error ARCv3 64-bit is not supported by uClibc-ng + +#else /* ARCHS || ARC700 */ .macro PUSHR reg push \reg @@ -24,5 +47,6 @@ pop_s \reg .endm +#endif #endif /* _ARC_ASM_H */ diff --git a/libc/sysdeps/linux/arc/bits/syscalls.h b/libc/sysdeps/linux/arc/bits/syscalls.h index c858d788b..000b6b631 100644 --- a/libc/sysdeps/linux/arc/bits/syscalls.h +++ b/libc/sysdeps/linux/arc/bits/syscalls.h @@ -100,7 +100,7 @@ extern long __syscall_error (int); #ifdef __A7__ #define ARC_TRAP_INSN "trap0 \n\t" -#elif defined(__HS__) +#else #define ARC_TRAP_INSN "trap_s 0 \n\t" #endif @@ -182,7 +182,7 @@ extern long __syscall_error (int); #ifdef __A7__ #define ARC_TRAP_INSN trap0 -#elif defined(__HS__) +#else #define ARC_TRAP_INSN trap_s 0 #endif diff --git a/libc/sysdeps/linux/arc/crt1.S b/libc/sysdeps/linux/arc/crt1.S index 70a06e058..ff36d252e 100644 --- a/libc/sysdeps/linux/arc/crt1.S +++ b/libc/sysdeps/linux/arc/crt1.S @@ -40,7 +40,9 @@ __start: ld_s r1, [sp] ; argc mov_s r5, r0 ; rltd_fini - add_s r2, sp, 4 ; argv + /* Use the universal 32-bit add instruction as 16-bit add_s was excluded from + ARCv3 ISA */ + add r2, sp, 4 ; argv #ifdef L_Scrt1 ld r0, [pcl, @main@gotpc] ld r3, [pcl, @_init@gotpc] |