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optionally move float emulation code into iram (#8958)

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* optionally move float emulation code into iram
allows doing float operation in iram
suitable for libraries like AccelStepper when called from ISR
* proposed changes for pio from @mcspr
This commit is contained in:
david gauchard
2023-11-12 23:53:39 +01:00
committed by GitHub
parent 74c04c88c5
commit d0f7293491
7 changed files with 201 additions and 9 deletions
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9
platform.txt
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@ -62,6 +62,9 @@ build.spiffs_start=
build.spiffs_end=
build.spiffs_blocksize=
# soft float location
build.iramfloat=-DFP_IN_IROM
# Fully qualified file names for processing sketch global options
globals.h.source.fqfn={build.source.path}/{build.project_name}.globals.h
commonhfile.fqfn={build.core.path}/CommonHFile.h
@ -79,7 +82,7 @@ compiler.cpreprocessor.flags=-D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_S
compiler.libraries.ldflags=
compiler.c.cmd=xtensa-lx106-elf-gcc
compiler.c.flags=-c "{compiler.warning_flags}-cflags" -std=gnu17 {build.stacksmash_flags} -g -free -fipa-pta -Werror=return-type -Wpointer-arith -Wno-implicit-function-declaration -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -falign-functions=4 -MMD -ffunction-sections -fdata-sections {build.exception_flags} {build.sslflags} {build.mmuflags} {build.non32xferflags}
compiler.c.flags=-c "{compiler.warning_flags}-cflags" -std=gnu17 {build.stacksmash_flags} -g -free -fipa-pta -Werror=return-type -Wpointer-arith -Wno-implicit-function-declaration -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -falign-functions=4 -MMD -ffunction-sections -fdata-sections {build.exception_flags} {build.sslflags} {build.mmuflags} {build.non32xferflags} {build.iramfloat}
compiler.S.cmd=xtensa-lx106-elf-gcc
compiler.S.flags=-c -g -x assembler-with-cpp -MMD -mlongcalls "-I{runtime.tools.xtensa-lx106-elf-gcc.path}/include/"
@ -90,7 +93,7 @@ compiler.c.elf.cmd=xtensa-lx106-elf-gcc
compiler.c.elf.libs=-lhal -lphy -lpp -lnet80211 {build.lwip_lib} -lwpa -lcrypto -lmain -lwps -lbearssl -lespnow -lsmartconfig -lairkiss -lwpa2 {build.stdcpp_lib} -lm -lc -lgcc
compiler.cpp.cmd=xtensa-lx106-elf-g++
compiler.cpp.flags=-c "{compiler.warning_flags}-cppflags" {build.stacksmash_flags} -g -free -fipa-pta -Werror=return-type -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 {build.stdcpp_level} -MMD -ffunction-sections -fdata-sections {build.exception_flags} {build.sslflags} {build.mmuflags} {build.non32xferflags}
compiler.cpp.flags=-c "{compiler.warning_flags}-cppflags" {build.stacksmash_flags} -g -free -fipa-pta -Werror=return-type -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 {build.stdcpp_level} -MMD -ffunction-sections -fdata-sections {build.exception_flags} {build.sslflags} {build.mmuflags} {build.non32xferflags} {build.iramfloat}
compiler.as.cmd=xtensa-lx106-elf-as
@ -128,7 +131,7 @@ recipe.hooks.prebuild.2.pattern="{runtime.tools.python3.path}/python3" -I "{runt
recipe.hooks.linking.prelink.1.pattern="{runtime.tools.python3.path}/python3" -I "{runtime.tools.mkdir}" -p "{build.path}/ld_h/"
recipe.hooks.linking.prelink.2.pattern="{runtime.tools.python3.path}/python3" -I "{runtime.tools.cp}" "{runtime.platform.path}/tools/sdk/ld/{build.flash_ld}" "{build.path}/ld_h/local.eagle.flash.ld.h"
recipe.hooks.linking.prelink.3.pattern="{compiler.path}{compiler.c.cmd}" -CC -E -P {build.vtable_flags} {build.mmuflags} "{build.path}/ld_h/local.eagle.flash.ld.h" -o "{build.path}/local.eagle.flash.ld"
recipe.hooks.linking.prelink.4.pattern="{compiler.path}{compiler.c.cmd}" -CC -E -P {build.vtable_flags} {build.mmuflags} "{runtime.platform.path}/tools/sdk/ld/eagle.app.v6.common.ld.h" -o "{build.path}/local.eagle.app.v6.common.ld"
recipe.hooks.linking.prelink.4.pattern="{compiler.path}{compiler.c.cmd}" {build.iramfloat} -CC -E -P {build.vtable_flags} {build.mmuflags} "{runtime.platform.path}/tools/sdk/ld/eagle.app.v6.common.ld.h" -o "{build.path}/local.eagle.app.v6.common.ld"
## Compile c files
recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.cpreprocessor.flags} {compiler.c.flags} -D{build.sdk}=1 -DF_CPU={build.f_cpu} {build.lwip_flags} {build.debug_port} {build.debug_level} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_BOARD_ID="{_id}" {build.led} {build.flash_flags} {compiler.c.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"