[Nasm-bugs] [Bug 3392774] New: Large define lists crash recent NASM

[noreply-nasm at dev.nasm.us]

https://bugzilla.nasm.us/show_bug.cgi?id=3392774

            Bug ID: 3392774
           Summary: Large define lists crash recent NASM
           Product: NASM
           Version: 2.16 (development)
          Hardware: Other x86
                OS: Linux
            Status: OPEN
          Severity: severe
          Priority: Medium
         Component: Assembler
          Assignee: nobody at nasm.us
          Reporter: pushbx at ulukai.org
                CC: chang.seok.bae at intel.com, gorcunov at gmail.com,
                    hpa at zytor.com, nasm-bugs at nasm.us
     Obtained from: Built from git using configure

Trying to build symbolic lDebugX using makex or makexd of the current symbolic
branch of https://hg.pushbx.org/ecm/ldebug results in NASM being killed by the
OS. (On an amd64 Linux Debian 10 server.) I was able to determine that a long
define appears to be the cause of this behaviour. Here's a test case that works
on all three tested NASM versions (TEST=0) or fails on the recent versions
(TEST=10, which is the default):

test$ cat test.asm

%if 0

NASM bug test case

2021 by C. Masloch

Usage of the works is permitted provided that this
instrument is retained with the works, so that any entity
that uses the works is notified of this instrument.

DISCLAIMER: THE WORKS ARE WITHOUT WARRANTY.

%endif

%define PATCH_386_TABLE ""

                ; Instruction if no 386+ CPU
        %macro _no386 0-1+.nolist
%push
%assign %$entry $+CODESECTIONFIXUP
                %1              ; write instruction

%rep ($+CODESECTIONFIXUP) - %$entry
                                ; count size of instruction
 %define PATCH_386_TABLE %[PATCH_386_TABLE],%[%$entry]  ; write a patch for
each byte
 %assign %$entry %$entry+1
%endrep
%pop
        %endmacro


        org 0

%define CODESECTIONFIXUP -code_start+0
code_start:
%ifndef TEST
 %assign TEST 10
%endif

        _no386 times 3030 + TEST nop





%xdefine PATCH_386_TABLE
PATCH_386_TABLE,5800,5801,5802,5815,5820,6091,6137,6165,6174,6180,6217,6233,6414,7328,7329,7330,7331,7488,7538,7636,8078,8393,8394,8395,8396,8397,8398,8399,8400,8401,8402,8403,8404,8405,8406,8407,8408,9227,9625,9644,9681,9711,9713,9716,9737,9740,9741,9742,9743,9744,9748,9751,9752,9753,9754,9755,9756,9757,9758,9942,10178,10179,10180,10181,10182,10183,10184,10185,10186,10187,10985,10997,11596,11638,11639,11640,11653,11654,11655,11656,11657,11658,11659,11660,11661,11910,11911,11912,11913,11914,11915,11916,11917,11918,11919,11960,13257,13265,13270,13292,13293,13294,13295,13296,13297,13298,13299,13300,13301,13302,13352,13416,13464,13465,13466,13469,13470,13471,13506,13524,13545,13564,13574,13575,13576,13577,13578,13579,13580,13605,13623,13625,13627,13629,13648,13650,13652,13654,13698,13699,13700,13701,13881,13923,13924,13925,13938,13939,13940,13941,13942,13943,13944,13945,13946,14712,14779,14780,14781,14782,14787,14788,14789,14790,14791,14792,14793,14794,14795,14796,14849,14854,15015,15058,15059,15060,15061,15078,15079,15080,15081,15082,15087,15088,15089,15165,15167,15169,15171,15178,15179,15180,15181,15182,15183,15184,15185,15186,15291,15301,15306,15307,15308,15309,15320,15321,15327,15328,15329,15330,15331,15332,15333,15334,15335,15336,15337,15338,15339,15340,15341,15342,15343,15344,15345,15346,15347,15348,15349,15350,15353,15428,15514,15522,15523,15524,15525,15526,15563,16232,16564,16565,16566,16567,16568,16569,16570,16571,16611,16612,16671,16676,16681,16704,16705,16706,16707,16708,16709,16739,16740,17147,17148,17158,17160,17193,17195,17546,17558,17720,17725,17728,17734,17772,17777,17782,17784,17794,17796,17798,17802,17805,17808,17811,17843,17846,17889,17928,17929,17930,17931,17932,17933,17934,17935,17936,17937,17938,18186,18187,18188,18189,18190,18191,18192,18193,18194,18505,18506,18507,18508,18509,18510,18511,18512,18513,18514,18515,18516,18517,18781,19274,19646,19651,19656,19683,19704,19705,19706,19707,19708,19709,19710,19711,19712,19713,19714,20009,20226,20273,20274,20278,20282,20286,20287,20291,20295,20299,20300,20304,20308,20312,20313,20317,20321,21598,21604,21631,22083,22084,22085,22086,22087,22088,22089,22090,22091,22092,22093,22094,22095,22096,22322,22325,22361,22803,22805,22810,22819,22821,22824,22831,22833,22838,22847,22849,22852,22859,22868,22878,22962,23071,23072,23073,23074,23075,23083,23084,23212,23222,23223,23224,23245,23255,23256,23257,23258,23259,23260,23270,23271,23272,23279,23286,23288,23299,23328,23329,23330,23336,23338,23350,23351,23352,23370,23371,23372,23373,23485,23492,23495,23496,23497,23508,23546,23555,23815,23816,23817,23818,23819,29190,29608,30573,30574,30575,30576,30577,30578,32975,32977,32979,32981,32983,32985,32987,33012,33014,33016,33018,33020,33022,33024,33172,33173,33174,33175,33176,33177,33178,33179,33180,33181,33182,33183,33184,33185,33186,33187,33188,33189,33190,33191,33271,33272,33273,33274,33275,33276,33277,33295,33299,33303,33307,33311,33315,33377,33378,33379,33380,33400,33404,33408,33412,33416,33420,33434,34013,34027,34030,34076,34079,34121,34576,34577,34578,34579,34580,34581,34582,34583,34584,34585,34586,34607,34608,34609,34610,34611,34612,34613,34614,34615,34616,34617,45818,46072,46075,46078,46080,46107,46110,46133,46134,46135,46136,46139,46140,46141,46145,46147,47058,47059,47060,47061,47377,47378,47379,47380,47474,47475,47476,47477,48272,48289,48292,48296,48299,48305,48307,48310,48313,48749,48759,48760,48761,48762,48796,50174,50183,50185,50227,50230,50265,50271,50272,50273,50274,50304,50305,50306,52079,52151,52164,52180,52188,52189,52190,52209,52281,52286,52306,52456,52459,52461,52476,52478,52481,52491,52502,52503,52504,52674,52675,52676,52708,52709,52710,52711,52712,52724,52725,52726,52727,52728,52742,52753,52758,52759,52760,52761,52762,52763,52764,52765,52766,52767,52768,52769,52770,52771,52772,52773,52774,52775,52776,52777,52778,52779,52780,52781,52782,52783,52784,52785,52786,52787,52788,52789,52803,52804,52805,52816,52822,52825,52852,52853,52854,52855,52903,52904,52905,52917,52919,52995,52996,52997,52998,52999,53000,53001,53002,53003,53658,53659,54547,54548,54682,54688,54689,54690,54691,54692,54693,54694,54695,54696,54697,54698,54699,54700,54701,54702,54703,54704,54705,54706,54707,54708,54709,54710,54711,54712,54713,54714,54715,54716,54717,56482,56499,56504,56980,56981,56982,56990,56991,56992,56995,57178,57179,57180,57229,57240,57241,57242





%macro count 0-*
%warning %0
%endmacro
count PATCH_386_TABLE
%defstr string PATCH_386_TABLE
%strlen length string
%warning length
test$ oldnasm -v
NASM version 2.14.03rc2 compiled on Aug 31 2019
test$ oldnasm test.asm
test.asm:56: warning: (count:1) 3776 [-w+user]
test.asm:54: ... from macro `count' defined here [-w+user]
test.asm:59: warning: 18442 [-w+user]
test$ nasm -v
NASM version 2.15.03 compiled on Dec 28 2020
test$ nasm test.asm
Killed
test$ newnasm -v
NASM version 2.16rc0 compiled on Aug  8 2021
test$ newnasm test.asm
Killed
test$ oldnasm test.asm -DTEST=0
test.asm:56: warning: (count:1) 3766 [-w+user]
test.asm:54: ... from macro `count' defined here [-w+user]
test.asm:59: warning: 18392 [-w+user]
test$ nasm test.asm -DTEST=0
test.asm:56: warning: 3766 [-w+user]
test.asm:54: ... from macro `count' defined here
test.asm:59: warning: 18392 [-w+user]
test$ newnasm test.asm -DTEST=0
test.asm:56: warning: 3766 [-w+user]
test.asm:54: ... from macro `count' defined here
test.asm:59: warning: 18392 [-w+user]
test$

-- 
You are receiving this mail because:
You are watching all bug changes.
You are on the CC list for the bug.