building llvm-gcc-4.0 against the 3GS firmware fails with the following:

/home/julien/src/iphone-dev/build/llvm-gcc-4.0-iphone/gcc/xgcc -B/home/julien/src/iphone-dev/build/
lvm-gcc-4.0-iphone/gcc/ -B/usr/local/arm-apple-darwin/bin/ -B/usr/local/arm-apple-darwin/lib/ -isys
em /usr/local/arm-apple-darwin/include -isystem /usr/local/arm-apple-darwin/sys-include -O2 -DIN_G
C -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -
old-style-definition -isystem ./include -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_F
OAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../../llvm-gcc-4.0-iphone/gcc -I../../../llvm-gcc-4.0-ip
one/gcc/. -I../../../llvm-gcc-4.0-iphone/gcc/../include -I../../../llvm-gcc-4.0-iphone/gcc/../libcp
/include -I/home/julien/src/llvm-svn/include -I/home/julien/src/llvm-svn/include -Dmalloc=kern_os_
alloc -Dfree=kern_os_free -DLIBCC_KEXT -static -fno-pic -fno-exceptions -fno-non-call-exceptions -D
_divsi3 -xassembler-with-cpp -c ../../../llvm-gcc-4.0-iphone/gcc/config/arm/lib1funcs.asm -include
ibgcc/kext/_divsi3.vis -o libgcc/kext/_divsi3.o /usr/local/bin/arm-apple-darwin-ld: /opt/iphone_root//usr/lib/libc.dylib unknown flags (type) of setion 4 (__TEXT,__dof_magmalloc) in load command 0 collect2: ld returned 1 exit status make[2]: * [libgcc_s.dylib] Error 1 make[2]: * Waiting for unfinished jobs.... make[2]: Leaving directory /home/julien/src/iphone-dev/build/llvm-gcc-4.0-iphone/gcc' make[1]: *** [stmp-multilib] Error 2 rm cpp.pod fsf-funding.pod gcc.pod gcov.pod gpl.pod gfdl.pod make[1]: Leaving directory /home/julien/src/iphone-dev/build/llvm-gcc-4.0-iphone/gcc' make: * [all-gcc] Error 2

Almost forgot: I tried the build on Debian sid using gcc 4.3

I have the same error. Still no fix!

i have the same error , too . Need Help !!

Same problem here, fw 3.0 jailbreaked by redsn0w.

Any plans to have a look at this issue ?

Well i had this issue on cygwin, firmware 3G 3.0, trying to build gcc-4.2.

The pb was i was not using ld64 but ld as linker from the odcctools package. I did that because 1: it is written to do so in the wiki (../../odcctools/configure --target=arm-apple-darwin -- disable-ld64) 2: ld64 did not compile anyway. But actually, you need to build ld64 coz that's the only one which knows how to handle S_16BYTE_LITERALS SECTION_TYPEs (simple ld gives the error we've reported if this kind of section type is encoutered).

Btw, i had pb building ld64 because of this "patch" (saurik added this on rev 287) => // start temp HACK for cross builds extern "C" double log2 ( double ) throw();

define MATH

// end temp HACK for cross builds i just tried to remove it, and ld64 compiles fine now. And so do gcc-4.2. Hope it'll help, even if cygwin is not officially supported, i landed there when i was googling for my pb :)

(Sorry for my bad english :-/)

I am getting this error as well on Ubuntu 10.04. G++ 4.1.3. I tried enabling 64 bit, but that didn't work:( there were more errors then your quick fix.

Thanks Gbillou for the hint, I got the ld64 to compile (just needed a clean). Although top of tree had new changes anyway.

So I get this error still. I added some debug information to show what section_type it wanted: error_with_cur_obj("unknown flags %lu (type) of section %lu" " (%.16s,%.16s) in load command %lu", section_type, j, s->segname, s->sectname, i);

The output is "libc.dylib unknown flags 15 (type)"

Looking at loader.h

define S_16BYTE_LITERALS 0xe /* section with only 16 byte literals */

we only go up to 16byte literals.

I guess we need support for S_32BYTE_LITERALS? I am using firmware 3.2.

right, obdcctools needs to be updated to use the new platform namely this (Although all the rest too)

define S_DTRACE_DOF 0xf /* section contains

I don't know how simple this is to do.. probably not.

It seems that these DTRACE_DOF sections aren't required for normal operations. I've made a small tool which patches flags 0xf to 0x1 (zerofill). Such patched dylibs work fine with both the apple and odcc linkers. Yes, this is a terrible hack :)

Right. Could you tell me how to use this tool (strip-dylibs.c). thanks.