https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115158
Bug ID: 115158
Summary: pru: undefined reference to _getentropy after
r15-518-g99b1daae18c095
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: dimitar at gcc dot gnu.org
Target Milestone: ---
Commit r15-518-g99b1daae18c095 appears to have uncovered a latent issue in the
PRU backend. Many C++ test cases started failing due to a missing symbol:
/home/dinux/projects/pru/testbot-workspace/pru-opt/pru/bin/ld:
/home/dinux/projects/pru/testbot-workspace/pru-opt/lib/gcc/pru/15.0.0/../../../../pru/lib/libc.a(libc_a-getentropyr.o):
in function `_getentropy_r':
/home/dinux/projects/pru/testbot-workspace/newlib/newlib/libc/reent/getentropyr.c:47:(.text._getentropy_r+0x28):
undefined reference to `_getentropy'
collect2: error: ld returned 1 exit status
compiler exited with status 1
FAIL: g++.dg/coroutines/torture/func-params-08.C (test for excess errors)
Indeed, that syscall has not been defined by PRU's libgloss. Naive solutions
would be to either enable -gc-sections by default for PRU, or define the
getentropy syscall for PRU in newlib.
I'm filing this bug report because I'd like to investigate a bit why it used to
work before.
