[Bug ld/27833] ld-plugin/pr24406-1.c fails with GCC cross-toolchain for arm-none-eabi

[dimitar at dinux dot eu]

https://sourceware.org/bugzilla/show_bug.cgi?id=27833

--- Comment #3 from Dimitar Dimitrov <dimitar at dinux dot eu> ---
Hi Nick,

Could you clarify why read() is not part of newlib for ARM?

I tested on 3 different newlib targets and I can see that "read" function is
part of newlib libc:
$ ./bin/arm-none-eabi-nm ./arm-none-eabi/lib/libc.a | grep -w read
00000000 T read
$ ./bin/riscv32-none-elf-nm ./riscv32-none-elf/lib/libc.a | grep -w read
00000000 T read
$ ./bin/pru-nm ./pru/lib/libc.a | grep -w read
00000000 T read

read() seems to be defined here:
https://sourceware.org/git/?p=newlib-cygwin.git;a=blob;f=newlib/libc/syscalls/sysread.c

Without -flto the test case is successfully linked for all of the 3 targets
above. Which is another indication that newlib provides the "read" function.

Regards,
Dimitar

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