Skip to content

Commit

Permalink
Free 15k code space for Arduino IDE
Browse files Browse the repository at this point in the history
Remove floating point printf and scanf compiler options. See
esp8266/Arduino#4089
  • Loading branch information
arendst committed Jan 24, 2018
1 parent ecb18db commit c290af9
Showing 1 changed file with 4 additions and 2 deletions.
6 changes: 4 additions & 2 deletions arduino/version 2.4.0/platform.txt
Original file line number Diff line number Diff line change
Expand Up @@ -18,20 +18,22 @@ compiler.warning_flags.more=-Wall
compiler.warning_flags.all=-Wall -Wextra

build.lwip_lib=-llwip_gcc
build.lwip_include=lwip/include
build.lwip_flags=-DLWIP_OPEN_SRC

compiler.path={runtime.tools.xtensa-lx106-elf-gcc.path}/bin/
compiler.sdk.path={runtime.platform.path}/tools/sdk
compiler.libc.path={runtime.platform.path}/tools/sdk/libc/xtensa-lx106-elf
compiler.cpreprocessor.flags=-D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-I{compiler.sdk.path}/include" "-I{compiler.sdk.path}/lwip/include" "-I{compiler.libc.path}/include" "-I{build.path}/core"
compiler.cpreprocessor.flags=-D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-I{compiler.sdk.path}/include" "-I{compiler.sdk.path}/{build.lwip_include}" "-I{compiler.libc.path}/include" "-I{build.path}/core"

compiler.c.cmd=xtensa-lx106-elf-gcc
compiler.c.flags=-c {compiler.warning_flags} -Os -g -Wpointer-arith -Wno-implicit-function-declaration -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -falign-functions=4 -MMD -std=gnu99 -ffunction-sections -fdata-sections

compiler.S.cmd=xtensa-lx106-elf-gcc
compiler.S.flags=-c -g -x assembler-with-cpp -MMD -mlongcalls

compiler.c.elf.flags=-g {compiler.warning_flags} -Os -nostdlib -Wl,--no-check-sections -u call_user_start -u _printf_float -u _scanf_float -Wl,-static "-L{compiler.sdk.path}/lib" "-L{compiler.sdk.path}/ld" "-L{compiler.libc.path}/lib" "-T{build.flash_ld}" -Wl,--gc-sections -Wl,-wrap,system_restart_local -Wl,-wrap,spi_flash_read
# compiler.c.elf.flags=-g {compiler.warning_flags} -Os -nostdlib -Wl,--no-check-sections -u call_user_start -u _printf_float -u _scanf_float -Wl,-static "-L{compiler.sdk.path}/lib" "-L{compiler.sdk.path}/ld" "-L{compiler.libc.path}/lib" "-T{build.flash_ld}" -Wl,--gc-sections -Wl,-wrap,system_restart_local -Wl,-wrap,spi_flash_read
compiler.c.elf.flags=-g {compiler.warning_flags} -Os -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static "-L{compiler.sdk.path}/lib" "-L{compiler.sdk.path}/ld" "-L{compiler.libc.path}/lib" "-T{build.flash_ld}" -Wl,--gc-sections -Wl,-wrap,system_restart_local -Wl,-wrap,spi_flash_read

compiler.c.elf.cmd=xtensa-lx106-elf-gcc
compiler.c.elf.libs=-lhal -lphy -lpp -lnet80211 {build.lwip_lib} -lwpa -lcrypto -lmain -lwps -laxtls -lespnow -lsmartconfig -lairkiss -lmesh -lwpa2 -lstdc++ -lm -lc -lgcc
Expand Down

1 comment on commit c290af9

@emontnemery
Copy link
Contributor

@emontnemery emontnemery commented on c290af9 Jan 24, 2018

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Awesome!
Does printing of VCC still work with this change?

Please sign in to comment.