Re: [Dotgnu-general] Porting dotnet to Minix 3

[Alexander Samilovskih]

I think I found porting bug. In function ILReadDir: there is only
memory allocation for dentry, but no allocation for dentry->d_name,
which is on linux 256 bytes long, but it is not garanteed by POSIX, on
minix it is 1 byte long. This was the reason of segfault

2013/2/12 Alexander Samilovskih <address@hidden>:
> stack trace of csant, something wrong with walking directories
>
> +0x7fb98bf
> ILReadDir+0x15
> CSAntDirNext+0x32
> ProcessDirStack+0x9a6
> CSAntFileSetLoad+0xc9
> CSAntTask_ResGen+0x70
> BuildTarget+0x19a
> CSAntBuild+0x250
> main+0x503
> ___start+0xe2
> _start+0x17
>
> 2013/2/10 Alexander Samilovskih <address@hidden>:
>> switched compiler to gcc
>>
>> gmake[2]: Entering directory `/home/new/pnet/engine'
>> gcc -DHAVE_CONFIG_H -I. -I../include    -I../libffi/include -fno-gcse
>> -fno-inline-functions -fno-unit-at-a-time -I../support -I../libgc/incl
>> ude -I../libgc/libatomic_ops/src -I../include  -I../libffi/include -I.
>> -DBUILD_PROFILE_NAME="\"full\"" -g -O2 -Wall -c cctormgr.c
>> /usr/pkg/bin/bash ./mklabel.sh "awk" ./cvm.h >cvm_labels.h
>> gcc -DHAVE_CONFIG_H -I. -I../include    -I../libffi/include -fno-gcse
>> -fno-inline-functions -fno-unit-at-a-time -I../support -I../libgc/incl
>> ude -I../libgc/libatomic_ops/src -I../include  -I../libffi/include -I.
>> -DBUILD_PROFILE_NAME="\"full\"" -g -O2 -Wall -c cvm.c
>> In file included from cvm.c:834:
>> cvm_call.c: In function '_ILCVMInterpreter':
>> cvm_call.c:2127: warning: pointer targets in passing argument 1 of
>> 'ILInterlockedIncrement' differ in signedness
>> ../support/interlocked_x86.h:53: note: expected 'ILInt32 *' but
>> argument is of type 'ILUInt32 *'
>> cvm.c:597: warning: optimization may eliminate reads and/or writes to
>> register variables
>> cvm.c:597: warning: optimization may eliminate reads and/or writes to
>> register variables
>> cvm.c:597: warning: optimization may eliminate reads and/or writes to
>> register variables
>> cvm.c:985: error: unable to find a register to spill in class 'SIREG'
>> cvm.c:985: error: this is the insn:
>> (insn 418 413 419 27 cvm.c:74 (parallel [
>>             (set (reg:SI 2 cx [7087])
>>                 (const_int 0 [0x0]))
>>             (set (reg/f:SI 1 dx [orig:7085 stacktop.275 ] [7085])
>>                 (plus:SI (reg/f:SI 6864 [ stacktop.275 ])
>>                     (reg:SI 7079)))
>>             (set (reg:SI 0 ax [7086])
>>                 (plus:SI (reg:SI 0 ax [7083])
>>                     (reg:SI 7079)))
>>             (set (mem/s:BLK (reg/f:SI 6864 [ stacktop.275 ]) [0 A32])
>>                 (mem:BLK (reg:SI 0 ax [7083]) [0 A8]))
>>             (use (reg:SI 7079))
>>         ]) 637 {*rep_movqi} (expr_list:REG_DEAD (reg:SI 0 ax [7083])
>>         (expr_list:REG_DEAD (reg:SI 7079)
>>             (expr_list:REG_DEAD (reg/f:SI 6864 [ stacktop.275 ])
>>                 (expr_list:REG_UNUSED (reg:SI 2 cx [7087])
>>                     (expr_list:REG_UNUSED (reg:SI 0 ax [7086])
>>                         (expr_list:REG_UNUSED (reg/f:SI 1 dx
>> [orig:7085 stacktop.275 ] [7085])
>>                             (nil))))))))
>> cvm.c:985: confused by earlier errors, bailing out
>> gmake[2]: *** [cvm.o] Error 1