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Allocate space for static call args, increase stack frame size on Sparc64 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6973 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2009-04-04 15:33:03 +00:00
parent 762e823086
commit f843e5282a
2 changed files with 17 additions and 9 deletions
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18
tcg/sparc/tcg-target.c
View File

@ -578,9 +578,11 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args,
global registers */
// delay slot
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), HOST_ST_OP);
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_ST_OP);
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), HOST_LD_OP);
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_LD_OP);
/* data_reg = sign_extend(arg0) */
switch(opc) {
@ -781,9 +783,11 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args,
global registers */
// delay slot
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), HOST_ST_OP);
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_ST_OP);
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), HOST_LD_OP);
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_LD_OP);
/* will become:
ba label2 */
@ -905,9 +909,11 @@ static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
global registers */
// delay slot
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), HOST_ST_OP);
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_ST_OP);
tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK,
TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), HOST_LD_OP);
TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE -
sizeof(long), HOST_LD_OP);
break;
case INDEX_op_jmp:
case INDEX_op_br:

8
tcg/sparc/tcg-target.h
View File

@ -75,12 +75,14 @@ enum {
#define TCG_REG_CALL_STACK TCG_REG_I6
#ifdef __arch64__
// Reserve space for AREG0
#define TCG_TARGET_STACK_MINFRAME (176 + 2 * (int)sizeof(long))
#define TCG_TARGET_CALL_STACK_OFFSET (2047 + TCG_TARGET_STACK_MINFRAME)
#define TCG_TARGET_STACK_MINFRAME (176 + 4 * (int)sizeof(long) + \
TCG_STATIC_CALL_ARGS_SIZE)
#define TCG_TARGET_CALL_STACK_OFFSET (2047 - 16)
#define TCG_TARGET_STACK_ALIGN 16
#else
// AREG0 + one word for alignment
#define TCG_TARGET_STACK_MINFRAME (92 + (2 + 1) * (int)sizeof(long))
#define TCG_TARGET_STACK_MINFRAME (92 + (2 + 1) * (int)sizeof(long) + \
TCG_STATIC_CALL_ARGS_SIZE)
#define TCG_TARGET_CALL_STACK_OFFSET TCG_TARGET_STACK_MINFRAME
#define TCG_TARGET_STACK_ALIGN 8
#endif