Hi Mats, On 23 August 2017 at 16:11, Mats Wichmann <mats@xxxxxxxxxxx> wrote: > On 08/22/2017 05:11 PM, Michael Kerrisk (man-pages) wrote: >> David, >> >> On 22 August 2017 at 04:53, David C. Rankin >> <drankinatty@xxxxxxxxxxxxxxxxxx> wrote: >>> All, >>> >>> The man 3 dlopen example needs updating to run on x86_64. It will run fine >>> as a 32-bit compile (with -m32), but fails without it, e.g. >>> >>> $ gcc -Wall -Wextra -pedantic -Wshadow -std=gnu11 -Ofast -ldl -o >>> bin/dlopen_man_ex dlopen_man_ex.c >>> >>> $ ./bin/dlopen_man_ex >>> /usr/lib/libm.so: invalid ELF header > > This sounds like you're picking up the linker script, which is not an > ELF file, but rather link-time instructions - you can't dlopen that. If > the "magic" in /usr/include/gnu is working, you should be getting an > soname line "libc.so.6" plugged in, not "libc.so". Yes, that's my guess too. But a fix went into the page about 18 months back to address that issue, which is why I'm wondering which version of the page David is looking at. Cheers, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
