On 22/12/14 20:55, Cyd Haselton wrote: > On Mon, Dec 22, 2014 at 1:09 PM, Cyd Haselton <chaselton@xxxxxxxxx> wrote: >> On Mon, Dec 22, 2014 at 1:05 PM, Andrew Haley <aph@xxxxxxxxxx> wrote: >>> On 12/22/2014 06:40 PM, Cyd Haselton wrote: >>>>> What does your /usr/lib/libc.so look like? I'd expect to see >>>>>> something like this: >>>>>> >>>>>> /* GNU ld script >>>>>> Use the shared library, but some functions are only in >>>>>> the static library, so try that secondarily. */ >>>>>> OUTPUT_FORMAT(elf64-x86-64) >>>>>> GROUP ( /lib64/libc.so.6 /usr/lib64/libc_nonshared.a AS_NEEDED ( /lib64/ld-linux-x86-64.so.2 ) ) >>>> >>>> I'm not quite sure what you're asking; I'm using a sysroot with the >>>> build compiler and the libc.so is not a script but an actual library. >>>> Were you asking about the build link script or the stage1 link script? >>> >>> I'm asking about the file /usr/lib/libc.so. >>> >>> If it's a script which looks like the file above you'll get >>> the function definitions you need when you link against libc, >>> even though dlopen is defined in ld-blah.so. >> >> There's no /usr/lib/libc.so in the environment in which I'm working on >> my Android device. >> >> The script excerpt you included in your original email looks familiar >> though. Is it possible the script is located elsewhere, with a >> different name? > > Or, if not, is there a workaround? I'm assuming there is as I've > built versions previous to 4.8.x on-device... You said "when bootstrapping 4.8.0 I was able to get around this by specifying -ldl in LDFLAGS and LIBS when running configure" which tells me that 4.8.0 was also broken. Either Android needs a linker script like GNU/Linux or you need to actually get in there and edit GCC's build scripts to link against libdl. Andrew.
