[Steven Woody] M16C development using GCC, Is It Possible?
i am currently working on a project of building M16C programs. i have an IRA M16C/I8C C/C++ compiler on hand, but it is for Windows and i just can not live w/o my Linux box. another reason i have to use GCC is that i must use some unit test tools which ask for gcc. i heard that gcc is also a cross-compiler, so i want to get know if it can be used as an M16C compiler? in GCC's home page, there is one item: 'July 20, 2005 Red Hat Inc has contributed a port for the Renesas R8C/M16C/M32C families' what that really means? and in this page 'http://a15177702.alturo-server.de/gcc-m16c/20050419.html', it said, GCC M16C project is totally bugy. so, what's the fact and what's your suggestion? (BTW: i need compile C++ not C only) thanks! -- steven woody (id: narke)
Re: [Steven Woody] M16C development using GCC, Is It Possible?
DJ Delorie <[EMAIL PROTECTED]> writes: >> i heard that gcc is also a cross-compiler, so i want to get know if >> it can be used as an M16C compiler? > > Yes. The target you want to use to build gcc et al is "m32c-elf". > > To compile for the m16c specifically, use "m32c-elf-gcc -mcpu=m16c ..." thanks. is that a 4.02 option? i can not find them on my 3.4 gcc man page. > >> in GCC's home page, there is one item: >> >> 'July 20, 2005 >> Red Hat Inc has contributed a port for the Renesas R8C/M16C/M32C >> families' >> >> what that really means? > > It means that Red Hat Inc has modified gcc (and binutils and newlib) > to support the r8c/m16c/m32c family of processors from Renesas, and > given those changes to the FSF to be integrated into their official > sources. how it going on? have it been alreay available in 4.02? > > gdb and a simulator are still in progress. that seem ok since i currently only need gcc. and, because i am new to the field , i want to ask, what is a 'simulator'? run target excutable on host computer? >> and in this page >> 'http://a15177702.alturo-server.de/gcc-m16c/20050419.html', it said, GCC >> M16C project is totally bugy. > > That's a different attempt to port gcc to m16c, and has nothing to do > with what I did. sorry, are you the author of the new m16c/gcc code? i noticed your domain name is redhat. > >> (BTW: i need compile C++ not C only) > > Note that I haven't gotten around to supporting C++ yet. You can try > to build it if you want, but I had deferred it due to other more > important issues, and haven't had a chance to work on it. It might > "just work", you never know ;-) do you mean, the current m16c/gcc code never compiler c++ code? if so, that is definitely a bad news to me, since our project based on EC++ (Embedded C++). though you pointed that i could build for my self, but in fact i can not, i know nothing about compiler writing :( so, i am thinking another question. if i can write the code which can pass both the current (3.4) g++ compiler and the IAR M16C C++ compiler, so my problem will resolved. but is it possible of the idea? i think i can use some #ifdef statements and move any IO into stubs. how different are these two compilers in C++ syntax? i like to heard any suggestion, and thank you in advance. -- steven woody (id: narke) Pepper...is hot and scorches, just like the sun - Politiki kouzina (2003)
Re: [Steven Woody] M16C development using GCC, Is It Possible?
DJ Delorie <[EMAIL PROTECTED]> writes: >> > To compile for the m16c specifically, use "m32c-elf-gcc -mcpu=m16c ..." >> >> thanks. is that a 4.02 option? i can not find them on my 3.4 gcc man page. > > The r8c/m16c/m32c port is new. Currently, it's only in the mainline > CVS sources, and will be "officially" released in the gcc 4.1 series. > >> > gdb and a simulator are still in progress. >> >> that seem ok since i currently only need gcc. > > You'll need binutils also, at least, and probably newlib to get crt0 > and some sample libraries and linker scripts. where to get the binutils and other stuff you mentioned? are they included in current CVS? > >> and, because i am new to the field , i want to ask, what is a >> 'simulator'? run target excutable on host computer? > > Yes. > >> > That's a different attempt to port gcc to m16c, and has nothing to do >> > with what I did. >> >> sorry, are you the author of the new m16c/gcc code? i noticed your >> domain name is redhat. > > I am one of the authors, and the current maintainer. > >> do you mean, the current m16c/gcc code never compiler c++ code? > > No, it just means I haven't tried it recently. It mostly worked back > when I was working in that area, but "mostly" wasn't good enough for > what I was doing, so I just skipped it, as I didn't need C++ back > then. might there is anyone else tried it. but i think i will be the one ... > >> C++). though you pointed that i could build for my self, but in fact >> i can not, i know nothing about compiler writing :( > > Compiler building, not compiler writing. I already did the writing part. > >> so, i am thinking another question. if i can write the code which >> can pass both the current (3.4) g++ compiler and the IAR M16C C++ >> compiler, so my problem will resolved. but is it possible of the >> idea? i think i can use some #ifdef statements and move any IO into >> stubs. how different are these two compilers in C++ syntax? > > The pragmas for assigning addresses to I/O variables are different, > but it's only a header change to get them working with gcc. Note that okay, it's a good news. > g++'s C++ is much more strict and current than most other C++ > compilers; it's likely you'll have to fix your code to get it to work, > but this would be due to code bugs and not g++ bugs if so. i plan to write in g++ from scratch. so its strictness is a good news and it will make life easy when i later compile on IAR's compiler, do i rightly understand? -- steven woody (id: narke) How Far You Fall Doesn't Matter, It's How You Land - Haine, La (1995)
Re: [Steven Woody] M16C development using GCC, Is It Possible?
DJ Delorie <[EMAIL PROTECTED]> writes: >> where to get the binutils and other stuff you mentioned? are they included in >> current CVS? > > http://sources.redhat.com/binutils/ > http://sources.redhat.com/newlib/ > > Again, in both cases you'll need to use the CVS version as the m32c > port is still new enough that it hasn't shown up in any official > releases yet. > >> i plan to write in g++ from scratch. so its strictness is a good >> news and it will make life easy when i later compile on IAR's >> compiler, do i rightly understand? > > Yes, unless their implementation is old enough to be incompatible. > ok, thanks for your help. now i know what i need to do is to get latest cvs code from GNU for 'gcc', 'binutils' and 'newlib', then compile and install them, right? after it were done, i will get capabilities of compile/linker from c++ source to M16C executable on my Linux host computer and the special capabilities come from giving extra options to gcc/ld/as command and these commands will keep no change when i use them normally and produce native code, right? sorry for bother. -- steven woody (id: narke) Charles: Let me ask you one thing. Do you think - after we've dried off, after we've spent lots more time together - you might agree *not* to marry me? And do you think not being married to me might maybe be something you could consider doing for the rest of your life? Carrie: I do. - Four Weddings and a Funeral (1994)
How Can I Get See A Memory Map For An Executable
i want to check in my C++ program, what variable is allocated in where. is there such a tool? another relative question is, where the 'new' operator get memory from? the global heap? does it same with what 'malloc' get from? thanks. -- steven woody (id: narke) Celine: Well, who says relationships have to last forever? - Before Sunrise (1995)
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how can i get see the runtime memory useage graph for my c++ program? this will include stack memory and dynamic memory (heap). thanks. - narke
How Can I Get See A Memory Map For An Executable
i want to check in my C++ program, what variable is allocated in where. is there such a tool? another relative question is, where the 'new' operator get memory from? the global heap? does it same with what 'malloc' get from? thanks. -- steven woody (id: narke) Celine: Well, who says relationships have to last forever? - Before Sunrise (1995)
