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Save all callee-saved x64 integer regs for unwinding.

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Temporary measure. Does not cover xmm saves on WIN64.
May have to use unwind info or waste another 160 bytes per CFRAME.
This commit is contained in:
Mike Pall 2009-12-29 02:04:20 +01:00
parent 374f534715
commit d18d1573d8
3 changed files with 30 additions and 22 deletions
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30
src/buildvm_x86.dasc
View File

@ -165,22 +165,28 @@
|.define CFRAME_SPACE, aword*5 // Delta for rsp (see <--).
|.macro saveregs
| push rbp; push rdi; push rsi; push rbx
| push r15; push r14; push r13; push r12
| sub rsp, CFRAME_SPACE
|.endmacro
|.macro restoreregs
| add rsp, CFRAME_SPACE
| pop r12; pop r13; pop r14; pop r15
| pop rbx; pop rsi; pop rdi; pop rbp
|.endmacro
|
|.define SAVE_CFRAME, aword [rsp+aword*13]
|.define SAVE_PC, dword [rsp+dword*25]
|.define SAVE_L, dword [rsp+dword*24]
|.define SAVE_ERRF, dword [rsp+dword*23]
|.define SAVE_NRES, dword [rsp+dword*22]
|.define TMP2, dword [rsp+dword*21]
|.define TMP1, dword [rsp+dword*20]
|.define SAVE_CFRAME, aword [rsp+aword*17]
|.define SAVE_PC, dword [rsp+dword*33]
|.define SAVE_L, dword [rsp+dword*32]
|.define SAVE_ERRF, dword [rsp+dword*31]
|.define SAVE_NRES, dword [rsp+dword*30]
|.define TMP2, dword [rsp+dword*29]
|.define TMP1, dword [rsp+dword*28]
|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by interpreter
|.define SAVE_RET, aword [rsp+aword*9] //<-- rsp entering interpreter.
|.define SAVE_RET, aword [rsp+aword*13] //<-- rsp entering interpreter.
|.define SAVE_R8, aword [rsp+aword*12]
|.define SAVE_R7, aword [rsp+aword*11]
|.define SAVE_R6, aword [rsp+aword*10]
|.define SAVE_R5, aword [rsp+aword*9]
|.define SAVE_R4, aword [rsp+aword*8]
|.define SAVE_R3, aword [rsp+aword*7]
|.define SAVE_R2, aword [rsp+aword*6]
@ -204,16 +210,18 @@
|
|.define CFRAME_SPACE, aword*5 // Delta for rsp (see <--).
|.macro saveregs
| push rbp; push r14; push r15; push rbx
| push rbp; push rbx; push r15; push r14; push r13; push r12
| sub rsp, CFRAME_SPACE
|.endmacro
|.macro restoreregs
| add rsp, CFRAME_SPACE
| pop rbx; pop r15; pop r14; pop rbp
| pop r12; pop r13; pop r14; pop r15; pop rbx; pop rbp
|.endmacro
|
|//----- 16 byte aligned,
|.define SAVE_RET, aword [rsp+aword*9] //<-- rsp entering interpreter.
|.define SAVE_RET, aword [rsp+aword*11] //<-- rsp entering interpreter.
|.define SAVE_R6, aword [rsp+aword*10]
|.define SAVE_R5, aword [rsp+aword*9]
|.define SAVE_R4, aword [rsp+aword*8]
|.define SAVE_R3, aword [rsp+aword*7]
|.define SAVE_R2, aword [rsp+aword*6]

2
src/lj_arch.h
View File

@ -48,7 +48,7 @@
#define LJ_TARGET_X64 1
#define LJ_TARGET_X86ORX64 1
#define LJ_PAGESIZE 4096
#error "No support for x64 architecture (yet)"
#define LJ_ARCH_NOJIT 1 /* NYI */
#else
#error "No target architecture defined"
#endif

20
src/lj_frame.h
View File

@ -66,19 +66,19 @@ enum {
#define CFRAME_SIZE (12*4)
#elif LJ_TARGET_X64
#if _WIN64
#define CFRAME_OFS_ERRF (23*4)
#define CFRAME_OFS_NRES (22*4)
#define CFRAME_OFS_PREV (13*8)
#define CFRAME_OFS_L (24*4)
#define CFRAME_OFS_PC (25*4)
#define CFRAME_SIZE (10*8)
#define CFRAME_OFS_PREV (17*8)
#define CFRAME_OFS_PC (33*4)
#define CFRAME_OFS_L (32*4)
#define CFRAME_OFS_ERRF (31*4)
#define CFRAME_OFS_NRES (30*4)
#define CFRAME_SIZE (14*8)
#else
#define CFRAME_OFS_PREV (4*8)
#define CFRAME_OFS_PC (5*4)
#define CFRAME_OFS_L (4*4)
#define CFRAME_OFS_ERRF (3*4)
#define CFRAME_OFS_NRES (2*4)
#define CFRAME_OFS_PREV (4*8)
#define CFRAME_OFS_L (4*4)
#define CFRAME_OFS_PC (5*4)
#define CFRAME_SIZE (10*8)
#define CFRAME_SIZE (12*8)
#endif
#else
#error "Missing CFRAME_* definitions for this architecture"