gnu-elf.ld.in named neither .rel.plt nor .got.plt, and the linker placed
them where its FDPIC code does not expect them.
It merged .rel.plt into .rel.dyn but still set DT_JMPREL as if .rel.plt
came last, so the loader bound each PLT slot with the symbol of another
relocation. And .got.plt came after .got: the offsets that the linker
gave the local function descriptors did not match where it put them, and
the first call through one jumped into data.
A module without a PLT has neither section, so neither problem showed
until a module called its imports through a PLT.
Give .rel.dyn and .rel.plt output sections of their own, and put .got.plt
first in .got, both as in the linker's own script. Only CONFIG_FDPIC
changes.
Assisted-by: Claude Code:claude-opus-5-5
Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>
1a18646375