diff options
Diffstat (limited to 'include/iprt/asmdefs.mac')
| -rw-r--r-- | include/iprt/asmdefs.mac | 108 |
1 files changed, 83 insertions, 25 deletions
diff --git a/include/iprt/asmdefs.mac b/include/iprt/asmdefs.mac index 665c674b..0b363a56 100644 --- a/include/iprt/asmdefs.mac +++ b/include/iprt/asmdefs.mac @@ -3,7 +3,7 @@ ; ; -; Copyright (C) 2006-2007 Oracle Corporation +; Copyright (C) 2006-2012 Oracle Corporation ; ; This file is part of VirtualBox Open Source Edition (OSE), as ; available from http://www.virtualbox.org. This file is free software; @@ -72,6 +72,11 @@ %define RT_BIT(bit) (1 << bit) ;; +; Makes a 32-bit unsigned (not type safe, but whatever) out of four byte values. +%define RT_MAKE_U32_FROM_U8(b0, b1, b2, b3) ( (b3 << 24) | (b2 << 16) | (b1 << 8) | b0 ) + + +;; ; Align code, pad with INT3. %define ALIGNCODE(alignment) align alignment, db 0cch @@ -94,17 +99,19 @@ ;; ; Mangles the given name so it can be referenced using DECLASM() in the ; C/C++ world. -%ifdef RT_ARCH_X86 - %ifdef RT_OS_OS2 - %define NAME(name) _ %+ NAME_OVERLOAD(name) +%ifndef ASM_FORMAT_BIN + %ifdef RT_ARCH_X86 + %ifdef RT_OS_OS2 + %define NAME(name) _ %+ NAME_OVERLOAD(name) + %endif + %ifdef RT_OS_WINDOWS + %define NAME(name) _ %+ NAME_OVERLOAD(name) + %endif %endif - %ifdef RT_OS_WINDOWS + %ifdef RT_OS_DARWIN %define NAME(name) _ %+ NAME_OVERLOAD(name) %endif %endif -%ifdef RT_OS_DARWIN - %define NAME(name) _ %+ NAME_OVERLOAD(name) -%endif %ifndef NAME %define NAME(name) NAME_OVERLOAD(name) %endif @@ -112,9 +119,9 @@ ;; ; Mangles the given C name so it will _import_ the right symbol. %ifdef ASM_FORMAT_PE -%define IMPNAME(name) __imp_ %+ NAME(name) + %define IMPNAME(name) __imp_ %+ NAME(name) %else -%define IMPNAME(name) NAME(name) + %define IMPNAME(name) NAME(name) %endif ;; @@ -130,6 +137,17 @@ %endif ;; +; Declares an imported object for use with IMP2. +; @note May change the current section! +%macro EXTERN_IMP2 1 + extern IMPNAME(%1) + BEGINDATA + %ifdef ASM_FORMAT_MACHO + g_Imp2_ %+ %1: RTCCPTR_DEF IMPNAME(%1) + %endif +%endmacro + +;; ; Gets the pointer to an imported object, version 2. %ifdef ASM_FORMAT_PE %ifdef RT_ARCH_AMD64 @@ -137,12 +155,19 @@ %else %define IMP2(name) dword [IMPNAME(name)] %endif -%else - %ifdef RT_ARCH_AMD64 - %define IMP2(name) IMPNAME(name) wrt rip - %else - %define IMP2(name) IMPNAME(name) +%elifdef ASM_FORMAT_ELF + %ifdef PIC + %ifdef RT_ARCH_AMD64 + %define IMP2(name) qword [rel IMPNAME(name) wrt ..got] + %else + %define IMP2(name) IMPNAME(name) wrt ..plt + %endif %endif +%elifdef ASM_FORMAT_MACHO + %define IMP2(name) RTCCPTR_PRE [g_Imp2_ %+ name xWrtRIP] +%endif +%ifndef IMP2 + %define IMP2(name) IMPNAME(name) %endif @@ -276,8 +301,8 @@ size NAME(%1 %+ _EndProc) 0 %ifdef ASM_FORMAT_MACHO %ifdef __YASM__ - [section .text] - [section .data] + section .text + section .data %endif %endif @@ -290,7 +315,7 @@ size NAME(%1 %+ _EndProc) 0 %endmacro %else %macro BEGINCODE 0 -[section .text] + section .text %endmacro %endif @@ -307,9 +332,9 @@ size NAME(%1 %+ _EndProc) 0 %else %macro BEGINCONST 0 %ifdef ASM_FORMAT_MACHO ;; @todo check the other guys too. - [section .rodata] + section .rodata %else - [section .text] + section .text %endif %endmacro %endif @@ -322,7 +347,7 @@ size NAME(%1 %+ _EndProc) 0 %endmacro %else %macro BEGINDATA 0 -[section .data] + section .data %endmacro %endif @@ -334,7 +359,7 @@ size NAME(%1 %+ _EndProc) 0 %endmacro %else %macro BEGINBSS 0 -[section .bss] + section .bss %endmacro %endif @@ -717,7 +742,7 @@ BEGINPROC RT_NOCRT(%1) -;; @def xS +;; @def xCB ; The stack unit size / The register unit size. ;; @def xSP @@ -748,7 +773,7 @@ BEGINPROC RT_NOCRT(%1) ; 'wrt rip' for AMD64 targets, nothing for x86 ones. %ifdef RT_ARCH_AMD64 - %define xS 8 + %define xCB 8 %define xSP rsp %define xBP rbp %define xAX rax @@ -759,7 +784,7 @@ BEGINPROC RT_NOCRT(%1) %define xSI rsi %define xWrtRIP wrt rip %else - %define xS 4 + %define xCB 4 %define xSP esp %define xBP ebp %define xAX eax @@ -771,4 +796,37 @@ BEGINPROC RT_NOCRT(%1) %define xWrtRIP %endif + +; +; Some simple compile time assertions. +; +; Note! Requires new kBuild to work. +; + +;; +; Structure size assertion macro. +%define AssertCompileSize(a_Type, a_Size) AssertCompileSizeML a_Type, a_Size +%macro AssertCompileSizeML 2, + %ifndef KBUILD_GENERATING_MAKEFILE_DEPENDENCIES + %assign AssertVar_cbActual %1 %+ _size + %assign AssertVar_cbExpected %2 + %if AssertVar_cbActual != AssertVar_cbExpected + %error %1 is AssertVar_cbActual bytes instead of AssertVar_cbExpected + %endif + %endif +%endmacro + +;; +; Structure memember offset assertion macro. +%define AssertCompileMemberOffset(a_Type, a_Member, a_off) AssertCompileMemberOffsetML a_Type, a_Member, a_off +%macro AssertCompileMemberOffsetML 3, + %ifndef KBUILD_GENERATING_MAKEFILE_DEPENDENCIES + %assign AssertVar_offActual %1 %+ . %+ %2 + %assign AssertVar_offExpected %3 + %if AssertVar_offActual != AssertVar_offExpected + %error %1 %+ . %+ %2 is at AssertVar_offActual instead of AssertVar_offExpected + %endif + %endif +%endmacro + %endif |