kumquat-buildroot/package/php/Config.in
Thomas Petazzoni e0eec7a4f7 php: disable on configurations using BR2_BINFMT_FLAT
BR2_BINFMT_FLAT configurations require the use of elf2flt. However,
PHP uses -export-dynamic which breaks badly with elf2flt. Even a
simple program fails to build:

$ ./output/host/bin/arm-linux-gcc -Wl,-export-dynamic -o toto toto.c
/home/thomas/projets/buildroot/output/host/opt/ext-toolchain/arm-buildroot-uclinux-uclibcgnueabi/bin/ld.real: section .junk LMA [0000000000000000,0000000000000027] overlaps section .text LMA [0000000000000000,0000000000006d07]

-export-dynamic is clearly not useful for FLAT configurations, which
are always statically linked, but it's quite a bit of work to change
the PHP build system to use it only conditionall.

It looks more like an interaction bug between gcc (which wants to put
the .text section at address 0x0 in its linker script) and elf2flt,
which wants to put its .junk section (containing the .rel.text stuff)
also at address 0x0.

Fixes (works around) the "section overlap" part of:

  http://autobuild.buildroot.net/results/35cbed8927bb10500ecf2816aa728ea240a0be21/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-02-26 23:45:39 +01:00

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config BR2_PACKAGE_PHP
bool "php"
select BR2_PACKAGE_PHP_SAPI_CGI if \
!BR2_PACKAGE_PHP_SAPI_APACHE && \
!BR2_PACKAGE_PHP_SAPI_CLI && \
!BR2_PACKAGE_PHP_SAPI_FPM && \
BR2_USE_MMU
select BR2_PACKAGE_PHP_SAPI_CLI if !BR2_USE_MMU
# PHP uses -export-dynamic, which breaks with elf2flt with a
# message like "ld.real: section .junk LMA [...,...] overlaps
# section .text LMA [...,...]"
depends on !BR2_BINFMT_FLAT
help
PHP is a widely-used general-purpose scripting
language that is especially suited for Web development
and can be embedded into HTML.
http://www.php.net
if BR2_PACKAGE_PHP
config BR2_PACKAGE_PHP_SAPI_APACHE
bool "Apache interface"
depends on BR2_PACKAGE_APACHE
help
Apache module
config BR2_PACKAGE_PHP_SAPI_CGI
bool "CGI interface"
# CGI uses fork()
depends on BR2_USE_MMU
help
Common Gateway Interface
config BR2_PACKAGE_PHP_SAPI_CLI
bool "CLI interface"
help
Command Line Interface
config BR2_PACKAGE_PHP_SAPI_FPM
bool "FPM interface"
depends on BR2_USE_MMU
# "Sparc v8 and predecessors are not and will not be supported"
depends on !BR2_sparc
help
PHP-FPM (FastCGI Process Manager)
source "package/php/Config.ext"
endif