WIP: tcg: add xtensa

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
OSLL · May 15, 2016 · 5360428 · 5360428
1 parent bfc766d
commit 5360428
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Showing 7 changed files with 2,334 additions and 2 deletions.
diff --git a/configure b/configure
@@ -506,6 +506,8 @@ elif check_define __aarch64__ ; then
   cpu="aarch64"
 elif check_define __hppa__ ; then
   cpu="hppa"
+elif check_define __xtensa__ ; then
+  cpu="xtensa"
 else
   cpu=`uname -m`
 fi
@@ -514,7 +516,7 @@ ARCH=
 # Normalise host CPU name and set ARCH.
 # Note that this case should only have supported host CPUs, not guests.
 case "$cpu" in
-  ia64|ppc|ppc64|s390|s390x|sparc64|x32)
+  ia64|ppc|ppc64|s390|s390x|sparc64|x32|xtensa)
     cpu="$cpu"
   ;;
   i386|i486|i586|i686|i86pc|BePC)

diff --git a/include/elf.h b/include/elf.h
@@ -1231,6 +1231,10 @@ typedef struct {
 #define R_IA64_DTPREL64LSB	0xb7	/* @dtprel(sym + add), data8 LSB */
 #define R_IA64_LTOFF_DTPREL22	0xba	/* @ltoff(@dtprel(s+a)), imm22 */
 
+/* Xtensa-specific declarations.  */
+
+#define R_XTENSA_NONE		0
+
 typedef struct elf32_rel {
   Elf32_Addr	r_offset;
   Elf32_Word	r_info;

diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
@@ -229,6 +229,7 @@ static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
     || defined(__sparc__) || defined(__aarch64__) \
     || defined(__s390x__) || defined(__mips__) \
     || defined(CONFIG_TCG_INTERPRETER)
+//    || defined(__xtensa__)
 #define USE_DIRECT_JUMP
 #endif
 
@@ -350,7 +351,7 @@ static inline void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr)
     __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
 #endif
 }
-#elif defined(__sparc__) || defined(__mips__)
+#elif defined(__sparc__) || defined(__mips__) || defined(__xtensa__)
 void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr);
 #else
 #error tb_set_jmp_target1 is missing

diff --git a/tcg/xtensa/core-isa.h b/tcg/xtensa/core-isa.h