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+ -CN/{$CHECKLOWADDRLOADS+/-} switch to enable explicit checks for accesses

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to low addresses in case the target cpu/OS does not support this (enabled
    for reads on AIX/PPC because on AIX the first 16KB are readable)

git-svn-id: trunk@20832 -
This commit is contained in:
Jonas Maebe 2012-04-11 18:05:50 +00:00
parent d7a12a01e8
commit 7aa3b99fb5
9 changed files with 160 additions and 93 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
compiler/globtype.pas
View File

@ -120,6 +120,7 @@ interface
cs_generate_stackframes,cs_do_assertion,cs_generate_rtti,
cs_full_boolean_eval,cs_typed_const_writable,cs_allow_enum_calc,
cs_do_inline,cs_fpu_fwait,cs_ieee_errors,
cs_check_low_addr_load,
{ mmx }
cs_mmx,cs_mmx_saturation,
{ parser }

1
compiler/msg/errore.msg
View File

@ -3223,6 +3223,7 @@ S*2Aas_Assemble using GNU AS
**2Ch<n>_<n> bytes heap (between 1023 and 67107840)
**2Ci_IO-checking
**2Cn_Omit linking stage
P*2CN_Generate nil-pointer checks (AIX-only)
**2Co_Check overflow of integer operations
**2CO_Check for possible overflow of integer operations
**2Cp<x>_Select instruction set, see fpc -i for possible values

2
compiler/msgidx.inc
View File

@ -925,7 +925,7 @@ const
option_info=11024;
option_help_pages=11025;
MsgTxtSize = 63667;
MsgTxtSize = 63712;
MsgIdxMax : array[1..20] of longint=(
26,90,315,112,85,55,116,26,202,63,

185
compiler/msgtxt.inc
View File

@ -1195,151 +1195,152 @@ const msgtxt : array[0..000265,1..240] of char=(
'**2Ch<n>_<n> bytes heap (between 1023 and 67107840)'#010+
'**2Ci_IO-checking'#010+
'**2Cn_Omit linki','ng stage'#010+
'P*2CN_Generate nil-pointer checks (AIX-only)'#010+
'**2Co_Check overflow of integer operations'#010+
'**2CO_Check for possible overflow of integer operations'#010+
'**2Cp<x>_Select instruction set, see fpc -i for possible values'#010+
'**2CP<x>=<y>_ packing settings'#010+
'**3CPPACKSET=<y>_ <y> set allocation:',' 0, 1 or DEFAULT or NORMAL, 2, '+
'4 and 8'#010+
'**2CP<x>=<y>_ packing s','ettings'#010+
'**3CPPACKSET=<y>_ <y> set allocation: 0, 1 or DEFAULT or NORMAL, 2, 4 '+
'and 8'#010+
'**2Cr_Range checking'#010+
'**2CR_Verify object method call validity'#010+
'**2Cs<n>_Set stack checking size to <n>'#010+
'**2Ct_Stack checking (for testing only, see manual)'#010+
'**2CX_Create also smartlinked library'#010+
'**1d<x>_D','efines the symbol <x>'#010+
'**','2CX_Create also smartlinked library'#010+
'**1d<x>_Defines the symbol <x>'#010+
'**1D_Generate a DEF file'#010+
'**2Dd<x>_Set description to <x>'#010+
'**2Dv<x>_Set DLL version to <x>'#010+
'*O2Dw_PM application'#010+
'**1e<x>_Set path to executable'#010+
'**1E_Same as -Cn'#010+
'**1fPIC_Same as -Cg'#010+
'**1fPIC_Same as',' -Cg'#010+
'**1F<x>_Set file names and paths:'#010+
'**2Fa<','x>[,y]_(for a program) load units <x> and [y] before uses is p'+
'arsed'#010+
'**2Fa<x>[,y]_(for a program) load units <x> and [y] before uses is par'+
'sed'#010+
'**2Fc<x>_Set input codepage to <x>'#010+
'**2FC<x>_Set RC compiler binary name to <x>'#010+
'**2Fd_Disable the compiler'#039's internal directory cache'#010+
'**2FD<x>_Set the directory where to sea','rch for compiler utilities'#010+
'**2Fd_Disable the compiler'#039's internal directory ','cache'#010+
'**2FD<x>_Set the directory where to search for compiler utilities'#010+
'**2Fe<x>_Redirect error output to <x>'#010+
'**2Ff<x>_Add <x> to framework path (Darwin only)'#010+
'**2FE<x>_Set exe/unit output path to <x>'#010+
'**2Fi<x>_Add <x> to include path'#010+
'**2Fl<x>_Add <x> to library path'#010+
'**2FL<x>_Use <x> as',' dynamic linker'#010+
'**2Fl<x','>_Add <x> to library path'#010+
'**2FL<x>_Use <x> as dynamic linker'#010+
'**2Fm<x>_Load unicode conversion table from <x>.txt in the compiler di'+
'r'#010+
'**2Fo<x>_Add <x> to object path'#010+
'**2Fr<x>_Load error message file <x>'#010+
'**2FR<x>_Set resource (.res) linker to <x>'#010+
'**2FR<x>_Set resource (.res) linker to',' <x>'#010+
'**2Fu<x>_Add <x> to unit path'#010+
'**2FU<x>_S','et unit output path to <x>, overrides -FE'#010+
'**2FU<x>_Set unit output path to <x>, overrides -FE'#010+
'**2FW<x>_Store generated whole-program optimization feedback in <x>'#010+
'**2Fw<x>_Load previously stored whole-program optimization feedback fr'+
'om <x>'#010+
'*g1g_Generate debug information (default format for t','arget)'#010+
'*g1g_Gen','erate debug information (default format for target)'#010+
'*g2gc_Generate checks for pointers'#010+
'*g2gh_Use heaptrace unit (for memory leak/corruption debugging)'#010+
'*g2gl_Use line info unit (show more info with backtraces)'#010+
'*g2go<x>_Set debug information options'#010+
'*g3godwarfsets_ Enable DWARF '#039'set'#039' ty','pe debug information (b'+
'reaks gdb < 6.5)'#010+
'*g2go<x>_Set debug information ','options'#010+
'*g3godwarfsets_ Enable DWARF '#039'set'#039' type debug information (bre'+
'aks gdb < 6.5)'#010+
'*g3gostabsabsincludes_ Store absolute/full include file paths in Stabs'+
#010+
'*g3godwarfmethodclassprefix_ Prefix method names in DWARF with class n'+
'ame'#010+
'*g2gp_Preserve case in stabs symbol names'#010+
'*g2gs_Generat','e Stabs debug information'#010+
'*g2gp_Pres','erve case in stabs symbol names'#010+
'*g2gs_Generate Stabs debug information'#010+
'*g2gt_Trash local variables (to detect uninitialized uses)'#010+
'*g2gv_Generates programs traceable with Valgrind'#010+
'*g2gw_Generate DWARFv2 debug information (same as -gw2)'#010+
'*g2gw2_Generate DWARFv2 debug information'#010+
'*g2gw3_G','enerate DWARFv3 debug information'#010+
'*g2gw','2_Generate DWARFv2 debug information'#010+
'*g2gw3_Generate DWARFv3 debug information'#010+
'*g2gw4_Generate DWARFv4 debug information (experimental)'#010+
'**1i_Information'#010+
'**2iD_Return compiler date'#010+
'**2iV_Return short compiler version'#010+
'**2iW_Return full compiler version'#010+
'**2iW_Return full compil','er version'#010+
'**2iSO_Return compiler OS'#010+
'**2iSP_R','eturn compiler host processor'#010+
'**2iSP_Return compiler host processor'#010+
'**2iTO_Return target OS'#010+
'**2iTP_Return target processor'#010+
'**1I<x>_Add <x> to include path'#010+
'**1k<x>_Pass <x> to the linker'#010+
'**1l_Write logo'#010+
'**1M<x>_Set language mode to <x>'#010+
'**1M<x>_Set language mode to <x','>'#010+
'**2Mfpc_Free Pascal dialect (default)'#010+
'**2Mo','bjfpc_FPC mode with Object Pascal support'#010+
'**2Mobjfpc_FPC mode with Object Pascal support'#010+
'**2Mdelphi_Delphi 7 compatibility mode'#010+
'**2Mtp_TP/BP 7.0 compatibility mode'#010+
'**2Mmacpas_Macintosh Pascal dialects compatibility mode'#010+
'**1n_Do not read the default config files'#010+
'**1N<x>_Node tree optimiz','ations'#010+
'**1n_Do not read the d','efault config files'#010+
'**1N<x>_Node tree optimizations'#010+
'**2Nu_Unroll loops'#010+
'**1o<x>_Change the name of the executable produced to <x>'#010+
'**1O<x>_Optimizations:'#010+
'**2O-_Disable optimizations'#010+
'**2O1_Level 1 optimizations (quick and debugger friendly)'#010+
'**2O2_Level 2 optimizations (-O1 + quick optimi','zations)'#010+
'**','2O2_Level 2 optimizations (-O1 + quick optimizations)'#010+
'**2O3_Level 3 optimizations (-O2 + slow optimizations)'#010+
'**2Oa<x>=<y>_Set alignment'#010+
'**2Oo[NO]<x>_Enable or disable optimizations, see fpc -i for possible '+
'values'#010+
'**2Op<x>_Set target cpu for optimizing, see fpc -i for possible values'+
#010+
'*','*2OW<x>_Generate whole-program optimization feedback for optimizati'+
'on <x>, see fpc -i for possible values'#010+
'**2Op<x>_Set target cpu for',' optimizing, see fpc -i for possible valu'+
'es'#010+
'**2OW<x>_Generate whole-program optimization feedback for optimization'+
' <x>, see fpc -i for possible values'#010+
'**2Ow<x>_Perform whole-program optimization <x>, see fpc -i for possib'+
'le values'#010+
'**2Os_Optimize for size rather than speed'#010+
'**1pg_Genera','te profile code for gprof (defines FPC_PROFILE)'#010+
'**2Os_Opt','imize for size rather than speed'#010+
'**1pg_Generate profile code for gprof (defines FPC_PROFILE)'#010+
'F*1P<x>_Target CPU / compiler related options:'#010+
'F*2PB_Show default compiler binary'#010+
'F*2PP_Show default target cpu'#010+
'F*2P<x>_Set target CPU (arm,i386,m68k,mips,mipsel,powerpc,powerpc64,sp'+
'arc,x86_64',#010+
'F*2P<x>_Set target CPU (arm,i386,m6','8k,mips,mipsel,powerpc,powerpc64,'+
'sparc,x86_64'#010+
'**1R<x>_Assembler reading style:'#010+
'**2Rdefault_Use default assembler for target'#010+
'3*2Ratt_Read AT&T style assembler'#010+
'3*2Rintel_Read Intel style assembler'#010+
'6*2RMOT_Read motorola style assembler'#010+
'**1S<x>_Syntax options:'#010+
'**1S<x>','_Syntax options:'#010+
'**2S2_Same as -Mobjfpc'#010+
'**2Sc','_Support operators like C (*=,+=,/= and -=)'#010+
'**2Sc_Support operators like C (*=,+=,/= and -=)'#010+
'**2Sa_Turn on assertions'#010+
'**2Sd_Same as -Mdelphi'#010+
'**2Se<x>_Error options. <x> is a combination of the following:'#010+
'**3*_<n> : Compiler halts after the <n> errors (default is 1)'#010+
'**3*_w : Compiler also ','halts after warnings'#010+
'**3*_<n> : Compiler halts after the <n> ','errors (default is 1)'#010+
'**3*_w : Compiler also halts after warnings'#010+
'**3*_n : Compiler also halts after notes'#010+
'**3*_h : Compiler also halts after hints'#010+
'**2Sg_Enable LABEL and GOTO (default in -Mtp and -Mdelphi)'#010+
'**2Sh_Use ansistrings by default instead of shortstrings'#010+
'**2Si_Turn on inlinin','g of procedures/functions declared as "inline"'#010+
'**2Sh_Use ansistrings by default ','instead of shortstrings'#010+
'**2Si_Turn on inlining of procedures/functions declared as "inline"'#010+
'**2Sk_Load fpcylix unit'#010+
'**2SI<x>_Set interface style to <x>'#010+
'**3SIcom_COM compatible interface (default)'#010+
'**3SIcorba_CORBA compatible interface'#010+
'**2Sm_Support macros like C (global)'#010+
'**2So_Same as ','-Mtp'#010+
'**2Sm_','Support macros like C (global)'#010+
'**2So_Same as -Mtp'#010+
'**2Ss_Constructor name must be init (destructor must be done)'#010+
'**2Sx_Enable exception keywords (default in Delphi/ObjFPC modes)'#010+
'**2Sy_@<pointer> returns a typed pointer, same as $T+'#010+
'**1s_Do not call assembler and linker'#010+
'**2sh_Generate s','cript to link on host'#010+
'**1s_Do n','ot call assembler and linker'#010+
'**2sh_Generate script to link on host'#010+
'**2st_Generate script to link on target'#010+
'**2sr_Skip register allocation phase (use with -alr)'#010+
'**1T<x>_Target operating system:'#010+
'3*2Tdarwin_Darwin/Mac OS X'#010+
'3*2Temx_OS/2 via EMX (including EMX/RSX extender)'#010+
'3*2Tfreebsd_Fre','eBSD'#010+
'3*2Temx_OS/2 via EMX',' (including EMX/RSX extender)'#010+
'3*2Tfreebsd_FreeBSD'#010+
'3*2Tgo32v2_Version 2 of DJ Delorie DOS extender'#010+
'3*2Tiphonesim_ iPhoneSimulator from iOS SDK 3.2+ (older versions: -Tda'+
'rwin)'#010+
'3*2Tlinux_Linux'#010+
'3*2Tnetbsd_NetBSD'#010+
'3*2Tnetware_Novell Netware Module (clib)'#010+
'3*2Tnetwlibc_Novell Netware Module (','libc)'#010+
'3*2Tnetware_Novell Netware Modul','e (clib)'#010+
'3*2Tnetwlibc_Novell Netware Module (libc)'#010+
'3*2Topenbsd_OpenBSD'#010+
'3*2Tos2_OS/2 / eComStation'#010+
'3*2Tsunos_SunOS/Solaris'#010+
@ -1347,19 +1348,19 @@ const msgtxt : array[0..000265,1..240] of char=(
'3*2Tsolaris_Solaris'#010+
'3*2Twatcom_Watcom compatible DOS extender'#010+
'3*2Twdosx_WDOSX DOS extender'#010+
'3*2Twin32_Windows 32 Bit'#010+
'3*2T','win32_Windows 32 Bit'#010+
'3*2Twince_Windows CE'#010+
'4*2','Tdarwin_Darwin/Mac OS X'#010+
'4*2Tdarwin_Darwin/Mac OS X'#010+
'4*2Tlinux_Linux'#010+
'4*2Twin64_Win64 (64 bit Windows systems)'#010+
'6*2Tamiga_Commodore Amiga'#010+
'6*2Tatari_Atari ST/STe/TT'#010+
'6*2Tlinux_Linux'#010+
'6*2Tpalmos_PalmOS'#010+
'A*2Tdarwin_Darwin/iPhoneOS/iOS'#010+
'A*2Tdarwin_Darwin/iPhoneOS/i','OS'#010+
'A*2Tlinux_Linux'#010+
'A*2Twince_Windows CE'#010+
'P*2Ta','miga_AmigaOS'#010+
'P*2Tamiga_AmigaOS'#010+
'P*2Tdarwin_Darwin/Mac OS X'#010+
'P*2Tlinux_Linux'#010+
'P*2Tmacos_Mac OS (classic)'#010+
@ -1368,112 +1369,112 @@ const msgtxt : array[0..000265,1..240] of char=(
'S*2Tlinux_Linux'#010+
'**1u<x>_Undefines the symbol <x>'#010+
'**1U_Unit options:'#010+
'**2Un_Do not check where the unit name matches th','e file name'#010+
'**2U','n_Do not check where the unit name matches the file name'#010+
'**2Ur_Generate release unit files (never automatically recompiled)'#010+
'**2Us_Compile a system unit'#010+
'**1v<x>_Be verbose. <x> is a combination of the following letters:'#010+
'**2*_e : Show errors (default) 0 : Show nothing (except erro','rs'+
'**2*_e : Show errors ','(default) 0 : Show nothing (except errors'+
')'#010+
'**2*_w : Show warnings u : Show unit info'#010+
'**2*_n : Show notes t : Show tried/used files'#010+
'**2*_h : Show hints c : Show conditionals'#010+
'**2*_i : Show general info d : Show debug info'#010+
'*','*2*_l : Show linenumbers r : Rhide/GCC compatibility mod'+
'e'#010+
'**2*_i : Show',' general info d : Show debug info'#010+
'**2*_l : Show linenumbers r : Rhide/GCC compatibility mode'#010+
'**2*_s : Show time stamps q : Show message numbers'#010+
'**2*_a : Show everything x : Executable info (Win32 only)'#010+
'**2*_b : Write file names messages p ',': Write tree.log with parse t'+
'ree'#010+
'**2*_a : Show everything x : Executable info (Win32 ','only'+
')'#010+
'**2*_b : Write file names messages p : Write tree.log with parse tre'+
'e'#010+
'**2*_ with full path v : Write fpcdebug.txt with'#010+
'**2*_ lots of debugging info'#010+
'**2*_m<x>,<y> : Don'#039't show messages numbered <x> and <y>'#010+
'F*1V<x>_Append '#039'-<x>'#039,' to the used compiler binary name (e.g. '+
'for version)'#010+
'**2*_m<x>,<y> : Don'#039't show messag','es numbered <x> and <y>'#010+
'F*1V<x>_Append '#039'-<x>'#039' to the used compiler binary name (e.g. f'+
'or version)'#010+
'**1W<x>_Target-specific options (targets)'#010+
'3*2WA_Specify native type application (Windows)'#010+
'4*2WA_Specify native type application (Windows)'#010+
'A*2WA_Specify native type application (Windows)'#010+
'3','*2Wb_Create a bundle instead of a library (Darwin)'#010+
'A*2W','A_Specify native type application (Windows)'#010+
'3*2Wb_Create a bundle instead of a library (Darwin)'#010+
'P*2Wb_Create a bundle instead of a library (Darwin)'#010+
'p*2Wb_Create a bundle instead of a library (Darwin)'#010+
'A*2Wb_Create a bundle instead of a library (Darwin)'#010+
'4*2Wb_Create a bundle instead of ','a library (Darwin)'#010+
'A*2Wb_Create a bundle instead of a libra','ry (Darwin)'#010+
'4*2Wb_Create a bundle instead of a library (Darwin)'#010+
'3*2WB_Create a relocatable image (Windows, Symbian)'#010+
'3*2WBxxxx_Set image base to xxxx (Windows, Symbian)'#010+
'4*2WB_Create a relocatable image (Windows)'#010+
'4*2WBxxxx_Set image base to xxxx (Windows)'#010+
'A*2WB_Create a relocatable imag','e (Windows, Symbian)'#010+
'4*2WBxxxx_Set image base to x','xxx (Windows)'#010+
'A*2WB_Create a relocatable image (Windows, Symbian)'#010+
'A*2WBxxxx_Set image base to xxxx (Windows, Symbian)'#010+
'3*2WC_Specify console type application (EMX, OS/2, Windows)'#010+
'4*2WC_Specify console type application (EMX, OS/2, Windows)'#010+
'A*2WC_Specify console type application (Windows',')'#010+
'A*','2WC_Specify console type application (Windows)'#010+
'P*2WC_Specify console type application (Classic Mac OS)'#010+
'3*2WD_Use DEFFILE to export functions of DLL or EXE (Windows)'#010+
'4*2WD_Use DEFFILE to export functions of DLL or EXE (Windows)'#010+
'A*2WD_Use DEFFILE to export functions of DLL or EXE (Windo','ws)'#010+
'A*2WD_Use DEF','FILE to export functions of DLL or EXE (Windows)'#010+
'3*2We_Use external resources (Darwin)'#010+
'4*2We_Use external resources (Darwin)'#010+
'A*2We_Use external resources (Darwin)'#010+
'P*2We_Use external resources (Darwin)'#010+
'p*2We_Use external resources (Darwin)'#010+
'3*2WF_Specify full-screen type application (EM','X, OS/2)'#010+
'3','*2WF_Specify full-screen type application (EMX, OS/2)'#010+
'3*2WG_Specify graphic type application (EMX, OS/2, Windows)'#010+
'4*2WG_Specify graphic type application (EMX, OS/2, Windows)'#010+
'A*2WG_Specify graphic type application (Windows)'#010+
'P*2WG_Specify graphic type application (Classic Mac OS)'#010+
'3*2Wi_','Use internal resources (Darwin)'#010+
'P*2WG_Specify gra','phic type application (Classic Mac OS)'#010+
'3*2Wi_Use internal resources (Darwin)'#010+
'4*2Wi_Use internal resources (Darwin)'#010+
'A*2Wi_Use internal resources (Darwin)'#010+
'P*2Wi_Use internal resources (Darwin)'#010+
'p*2Wi_Use internal resources (Darwin)'#010+
'3*2WI_Turn on/off the usage of import sections (Windows)',#010+
'3*2WI_Turn ','on/off the usage of import sections (Windows)'#010+
'4*2WI_Turn on/off the usage of import sections (Windows)'#010+
'A*2WI_Turn on/off the usage of import sections (Windows)'#010+
'3*2WM<x>_Minimum Mac OS X deployment version: 10.4, 10.5.1, ... (Darwi'+
'n)'#010+
'4*2WM<x>_Minimum Mac OS X deployment version: 10.4, ','10.5.1, ... (Dar'+
'4*2WM<x','>_Minimum Mac OS X deployment version: 10.4, 10.5.1, ... (Dar'+
'win)'#010+
'p*2WM<x>_Minimum Mac OS X deployment version: 10.4, 10.5.1, ... (Darwi'+
'n)'#010+
'P*2WM<x>_Minimum Mac OS X deployment version: 10.4, 10.5.1, ... (Darwi'+
'n)'#010+
'3*2WN_Do not generate relocation code, needed for debugging (Windows)'#010+
'4*2','WN_Do not generate relocation code, needed for debugging (Windows'+
'3*2WN_Do not generate reloca','tion code, needed for debugging (Windows'+
')'#010+
'4*2WN_Do not generate relocation code, needed for debugging (Windows)'#010+
'A*2WN_Do not generate relocation code, needed for debugging (Windows)'#010+
'A*2Wpxxxx_Specify the controller type, see fpc -i for possible values'#010+
'V*2Wpxxxx_Specify the controller ','type, see fpc -i for possible value'+
'A*2Wpxxxx_Specify the controller type, see fpc -i for poss','ible value'+
's'#010+
'V*2Wpxxxx_Specify the controller type, see fpc -i for possible values'#010+
'3*2WP<x>_Minimum iOS deployment version: 3.0, 5.0.1, ... (iphonesim)'#010+
'A*2WP<x>_Minimum iOS deployment version: 3.0, 5.0.1, ... (Darwin)'#010+
'3*2WR_Generate relocation code (Windows)'#010+
'4*2WR_Generate relocation c','ode (Windows)'#010+
'3*2WR_Generate relocati','on code (Windows)'#010+
'4*2WR_Generate relocation code (Windows)'#010+
'A*2WR_Generate relocation code (Windows)'#010+
'P*2WT_Specify MPW tool type application (Classic Mac OS)'#010+
'**2WX_Enable executable stack (Linux)'#010+
'**1X_Executable options:'#010+
'**2Xc_Pass --shared/-dynamic to the linker (BeOS, Darwin, FreeBSD',', L'+
'**2Xc_Pass --shared/','-dynamic to the linker (BeOS, Darwin, FreeBSD, L'+
'inux)'#010+
'**2Xd_Do not use standard library search path (needed for cross compil'+
'e)'#010+
'**2Xe_Use external linker'#010+
'**2Xg_Create debuginfo in a separate file and add a debuglink section '+
'to executable'#010+
'**2XD_Try to link units dynamically (define','s FPC_LINK_DYNAMIC)'#010+
'**2','XD_Try to link units dynamically (defines FPC_LINK_DYNAMIC)'#010+
'**2Xi_Use internal linker'#010+
'**2Xm_Generate link map'#010+
'**2XM<x>_Set the name of the '#039'main'#039' program routine (default i'+
's '#039'main'#039')'#010+
'F*2Xp<x>_First search for the compiler binary in the directory <x>'#010+
'**2XP<x>_Prepend the binutils n','ames with the prefix <x>'#010+
'F*2Xp<x>_First search for the compiler binary in the ','directory <x>'#010+
'**2XP<x>_Prepend the binutils names with the prefix <x>'#010+
'**2Xr<x>_Set the linker'#039's rlink-path to <x> (needed for cross comp'+
'ile, see the ld manual for more information) (BeOS, Linux)'#010+
'**2XR<x>_Prepend <x> to all linker search paths (BeOS, Darwin, FreeBSD'+
', Linux, Mac OS, Sol','aris)'#010+
'**2XR<x>_Prepend <x> to all linker search pat','hs (BeOS, Darwin, FreeB'+
'SD, Linux, Mac OS, Solaris)'#010+
'**2Xs_Strip all symbols from executable'#010+
'**2XS_Try to link units statically (default, defines FPC_LINK_STATIC)'#010+
'**2Xt_Link with static libraries (-static is passed to linker)'#010+
'**2XX_Try to smartlink units (defines FPC_LINK_SM','ART)'#010+
'**2XX_Try to sma','rtlink units (defines FPC_LINK_SMART)'#010+
'**1*_'#010+
'**1?_Show this help'#010+
'**1h_Shows this help without waiting'

5
compiler/options.pas
View File

@ -853,6 +853,11 @@ begin
exclude(init_settings.globalswitches,cs_link_nolink)
Else
include(init_settings.globalswitches,cs_link_nolink);
'N' :
If UnsetBool(More, j) then
exclude(init_settings.localswitches,cs_check_low_addr_load)
Else
include(init_settings.localswitches,cs_check_low_addr_load);
'o' :
If UnsetBool(More, j) then
exclude(init_settings.localswitches,cs_check_overflow)

2
compiler/powerpc/cgcpu.pas
View File

@ -284,6 +284,8 @@ const
ref2: treference;
begin
if target_info.system=system_powerpc_aix then
g_load_check_simple(list,ref,65536);
{ TODO: optimize/take into consideration fromsize/tosize. Will }
{ probably only matter for OS_S8 loads though }
if not(fromsize in [OS_8,OS_S8,OS_16,OS_S16,OS_32,OS_S32]) then

44
compiler/ppcgen/cgppc.pas
View File

@ -68,6 +68,7 @@ unit cgppc;
procedure g_stackpointer_alloc(list : TAsmList;localsize : longint);override;
function get_aix_toc_sym(const symname: string; const flags: tindsymflags):tasmsymbol;
procedure g_load_check_simple(list: TAsmList; const ref: treference; size: aint);
procedure g_external_wrapper(list: TAsmList; pd: TProcDef; const externalname: string); override;
protected
function get_darwin_call_stub(const s: string; weak: boolean): tasmsymbol;
@ -527,6 +528,8 @@ unit cgppc;
ref2: treference;
begin
if target_info.system in systems_aix then
g_load_check_simple(list,ref,65536);
if not(fromsize in [OS_F32,OS_F64]) or
not(tosize in [OS_F32,OS_F64]) then
internalerror(200201121);
@ -846,6 +849,47 @@ unit cgppc;
end;
procedure tcgppcgen.g_load_check_simple(list: TAsmList; const ref: treference; size: aint);
var
reg: tregister;
lab: tasmlabel;
begin
if not(cs_check_low_addr_load in current_settings.localswitches) then
exit;
{ this is mainly for AIX, which does not trap loads from address 0. A
global symbol (if not weak) will always map to a proper address, and
the same goes for stack addresses -> skip }
if assigned(ref.symbol) and
(ref.symbol.bind<>AB_WEAK_EXTERNAL) then
exit;
if (ref.base=NR_STACK_POINTER_REG) or
(ref.index=NR_STACK_POINTER_REG) or
(assigned(current_procinfo) and
((ref.base=current_procinfo.framepointer) or
(ref.index=current_procinfo.framepointer))) then
exit;
if assigned(ref.symbol) or
(ref.offset<>0) or
((ref.base<>NR_NO) and (ref.index<>NR_NO)) then
begin
{ can't allocate register, also used in wrappers and the like }
reg:=NR_R0;
a_reg_alloc(list,reg);
a_loadaddr_ref_reg(list,ref,reg);
end
else if ref.base<>NR_NO then
reg:=ref.base
else
reg:=ref.index;
current_asmdata.getjumplabel(lab);
if reg=NR_R0 then
a_reg_dealloc(list,reg);
a_cmp_const_reg_label(list,OS_ADDR,OC_A,size-1,reg,lab);
a_call_name(list,'FPC_INVALIDPOINTER',false);
a_label(list,lab);
end;
procedure tcgppcgen.g_external_wrapper(list: TAsmList; pd: TProcDef; const externalname: string);
var
href : treference;

7
compiler/scandir.pas
View File

@ -286,6 +286,12 @@ unit scandir;
end;
procedure dir_checklowaddrloads;
begin
do_localswitchdefault(cs_check_low_addr_load);
end;
procedure dir_checkpointer;
begin
do_localswitchdefault(cs_checkpointer);
@ -1438,6 +1444,7 @@ unit scandir;
AddDirective('BOOLEVAL',directive_all, @dir_booleval);
AddDirective('BITPACKING',directive_all, @dir_bitpacking);
AddDirective('CALLING',directive_all, @dir_calling);
AddDirective('CHECKLOWADDRLOADS',directive_all, @dir_checklowaddrloads);
AddDirective('CHECKPOINTER',directive_all, @dir_checkpointer);
AddDirective('CODEALIGN',directive_all, @dir_codealign);
AddDirective('CODEPAGE',directive_all, @dir_codepage);

6
rtl/inc/system.inc
View File

@ -683,6 +683,12 @@ begin
end;
procedure fpc_invalidpointer; [public,alias:'FPC_INVALIDPOINTER'];
begin
HandleErrorFrame(216,get_frame);
end;
procedure fpc_iocheck;[public,alias:'FPC_IOCHECK']; compilerproc;
var
l : longint;