[PATCH v3] elf: Set p_align to the minimum page size if possible

[Alan Modra]

On Fri, Dec 24, 2021 at 07:54:18PM -0800, H.J. Lu via Binutils wrote:
> Changes in v3:
> 
> 1. To enable this linker optimization, the backend must define ELF_P_ALIGN
> to ELF_MINPAGESIZE.

All this means is that you're only breaking x86 binaries for those
with older glibc who might be running with page size larger than 4k.
If this isn't so, what am I missing?

Also, please check for fallout in future.

alpha-linux  +FAIL: ld-elf/pr26936
alpha-linux  +FAIL: ld-elf/seg
alpha-linux  +FAIL: rgn-at5
alpha-netbsd  +FAIL: ld-elf/pr26936
alpha-unknown-freebsd4.7  +FAIL: ld-elf/pr26936
arc-elf  +FAIL: ld-elf/pr26936
arc-linux-uclibc  +FAIL: ld-elf/pr26936
arc-linux-uclibc  +FAIL: ld-elf/seg
arc-linux-uclibc  +FAIL: rgn-at5
arm-nacl  +FAIL: ld-elf/pr26936
avr-elf  +FAIL: ld-scripts/pr23571
cr16-elf  +FAIL: ld-scripts/pr23571
cris-linux  +FAIL: ld-elf/pr26936
cris-linux  +FAIL: ld-elf/seg
cris-linux  +FAIL: rgn-at5
crisv32-linux  +FAIL: ld-elf/pr26936
crisv32-linux  +FAIL: ld-elf/seg
crisv32-linux  +FAIL: rgn-at5
crx-elf  +FAIL: ld-scripts/pr23571
frv-linux  +FAIL: ld-elf/pr26936
frv-linux  +FAIL: ld-elf/seg
frv-linux  +FAIL: rgn-at5
h8300-elf  +FAIL: ld-scripts/pr23571
h8300-linux  +FAIL: ld-scripts/pr23571
ia64-elf  +FAIL: ld-elf/pr26936
ia64-freebsd5  +FAIL: ld-elf/pr26936
ia64-linux  +FAIL: ld-elf/pr26936
ia64-linux  +FAIL: ld-elf/seg
ia64-linux  +FAIL: rgn-at5
ia64-netbsd  +FAIL: ld-elf/pr26936
ip2k-elf  +FAIL: ld-scripts/pr23571
lm32-linux  +FAIL: ld-elf/pr26936
lm32-linux  +FAIL: ld-elf/seg
lm32-linux  +FAIL: rgn-at5
loongarch64-linux  +FAIL: ld-elf/seg
loongarch64-linux  +FAIL: rgn-at5
m32c-elf  +FAIL: ld-scripts/pr23571
m32r-elf  +FAIL: ld-scripts/pr23571
m68k-elf  +FAIL: ld-elf/pr26936
m68k-linux  +FAIL: ld-elf/pr26936
m68k-linux  +FAIL: ld-elf/seg
m68k-linux  +FAIL: rgn-at5
moxie-elf  +FAIL: ld-scripts/pr23571
nds32le-linux  +FAIL: ld-elf/pr26936
nds32le-linux  +FAIL: ld-elf/seg
nds32le-linux  +FAIL: rgn-at5
or1k-linux  +FAIL: ld-elf/pr26936
or1k-linux  +FAIL: ld-elf/seg
or1k-linux  +FAIL: rgn-at5
pru-elf  +FAIL: pru_irq_map special section for host
pru-elf  +FAIL: ld-scripts/pr23571
score-elf  +FAIL: ld-elf/pr26936
shle-unknown-netbsdelf  +FAIL: ld-elf/pr26936
sh-nto  +FAIL: ld-scripts/pr23571
sh-rtems  +FAIL: ld-scripts/pr23571
sparc64-linux  +FAIL: ld-elf/pr26936
sparc64-linux  +FAIL: ld-elf/seg
sparc64-linux  +FAIL: rgn-at5
sparc-elf  +FAIL: ld-elf/pr26936
sparc-linux  +FAIL: ld-elf/pr26936
sparc-linux  +FAIL: ld-elf/seg
sparc-linux  +FAIL: rgn-at5
sparc-sun-solaris2  +FAIL: ld-elf/pr26936
spu-elf  +FAIL: ld-scripts/pr23571
tilegx-linux  +FAIL: ld-elf/pr26936
tilegx-linux  +FAIL: ld-elf/seg
tilegx-linux  +FAIL: rgn-at5
tilepro-linux  +FAIL: ld-elf/pr26936
tilepro-linux  +FAIL: ld-elf/seg
tilepro-linux  +FAIL: rgn-at5
visium-elf  +FAIL: ld-scripts/pr23571
xstormy16-elf  +FAIL: ld-scripts/pr23571

-- 
Alan Modra
Australia Development Lab, IBM