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tcg-ppc64: Merge 32-bit ABIs into the prologue / frame code

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Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2014-03-25 09:13:38 -07:00
parent 77e58d0d60
commit ffcfbecec3
1 changed files with 32 additions and 7 deletions
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39
tcg/ppc64/tcg-target.c
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@ -24,6 +24,10 @@
#include "tcg-be-ldst.h"
#if defined _CALL_DARWIN || defined __APPLE__
#define TCG_TARGET_CALL_DARWIN
#endif
/* Shorthand for size of a pointer. Avoid promotion to unsigned. */
#define SZP ((int)sizeof(void *))
@ -1431,12 +1435,26 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg,
# define LINK_AREA_SIZE (6 * SZR)
# define LR_OFFSET (1 * SZR)
# define TCG_TARGET_CALL_STACK_OFFSET (LINK_AREA_SIZE + 8 * SZR)
#elif defined(_CALL_ELF) && _CALL_ELF == 2
# define LINK_AREA_SIZE (4 * SZR)
# define LR_OFFSET (1 * SZR)
#elif TCG_TARGET_REG_BITS == 64
# if defined(_CALL_ELF) && _CALL_ELF == 2
# define LINK_AREA_SIZE (4 * SZR)
# define LR_OFFSET (1 * SZR)
# endif
#else /* TCG_TARGET_REG_BITS == 32 */
# if defined(_CALL_SYSV)
# define TCG_TARGET_CALL_ALIGN_ARGS 1
# define LINK_AREA_SIZE (2 * SZR)
# define LR_OFFSET (1 * SZR)
# elif defined(TCG_TARGET_CALL_DARWIN)
# define LINK_AREA_SIZE 24
# define LR_OFFSET 8
# endif
#endif
#ifndef LR_OFFSET
# error "Unhandled abi"
#endif
#ifndef TCG_TARGET_CALL_STACK_OFFSET
# define TCG_TARGET_CALL_STACK_OFFSET LINK_AREA_SIZE
#else
# error
#endif
#define CPU_TEMP_BUF_SIZE (CPU_TEMP_BUF_NLONGS * (int)sizeof(long))
@ -1469,7 +1487,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
/* Prologue */
tcg_out32(s, MFSPR | RT(TCG_REG_R0) | LR);
tcg_out32(s, STDU | SAI(TCG_REG_R1, TCG_REG_R1, -FRAME_SIZE));
tcg_out32(s, (SZR == 8 ? STDU : STWU)
| SAI(TCG_REG_R1, TCG_REG_R1, -FRAME_SIZE));
for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
tcg_out_st(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i],
@ -2169,6 +2188,7 @@ static void tcg_target_init(TCGContext *s)
tcg_add_target_add_op_defs(ppc_op_defs);
}
#ifdef __ELF__
typedef struct {
DebugFrameCIE cie;
DebugFrameFDEHeader fde;
@ -2179,7 +2199,11 @@ typedef struct {
/* We're expecting a 2 byte uleb128 encoded value. */
QEMU_BUILD_BUG_ON(FRAME_SIZE >= (1 << 14));
#define ELF_HOST_MACHINE EM_PPC64
#if TCG_TARGET_REG_BITS == 64
# define ELF_HOST_MACHINE EM_PPC64
#else
# define ELF_HOST_MACHINE EM_PPC
#endif
static DebugFrame debug_frame = {
.cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */
@ -2218,3 +2242,4 @@ void tcg_register_jit(void *buf, size_t buf_size)
tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
}
#endif /* __ELF__ */