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alpha: Do not build with -fpic

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The combination of GCC 10 and binutils 2.35 (both unreleased) is no
longer able to link the dynamic linker, due to a GP16 relocation
overflow error:

glibc/alpha-linux-gnu/elf/librtld.os: in function `calloc': glibc/elf/../include/rtld-malloc.h:44:(.text+0xd98): relocation truncated to fit: GPREL16 against symbol `__rtld_calloc' defined in .data.rel.ro section in glibc/alpha-linux-gnu/elf/librtld.os
glibc/alpha-linux-gnu/elf/librtld.os: in function `malloc': glibc/elf/../include/rtld-malloc.h:56:(.text+0x2978): relocation truncated to fit: GPREL16 against symbol `__rtld_malloc' defined in .data.rel.ro section in glibc/alpha-linux-gnu/elf/librtld.os

This is arguably a linker bug; the object files and their section size
requirements look reasonable enough.

Using -fPIC (the default) works around this issue.
This commit is contained in:
Florian Weimer 2020-03-03 15:41:49 +01:00
parent 66449d9339
commit c014359a7d
1 changed files with 0 additions and 4 deletions
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4
sysdeps/alpha/Makefile
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@ -57,10 +57,6 @@ endif
# "current" rounding mode, and it's easiest to set this with all of them.
sysdep-CFLAGS += -mieee -mfp-rounding-mode=d
# libc.so requires about 16k for the small data area, which is well
# below the 64k maximum.
pic-ccflag = -fpic
# Software floating-point emulation.
ifeq ($(subdir),soft-fp)