trying to build using ntp and I'm receiving errors. I've seen errors like this before but only when trying to use malloc/zalloc vs os_zalloc as you are (I thought) correctly using.
/home/morgan/devel/ESP8266/crosstool-NG/builds/xtensa-lx106-elf/lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: build/rom0.elf section `.text' will not fit in region `iram1_0_seg'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(mallocr.o):(.literal+0x10): undefined reference to `_sbrk_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(mallocr.o): In function `_malloc_r':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdlib/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdlib/mallocr.c:2152: undefined reference to `_sbrk_r'
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdlib/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdlib/mallocr.c:2189: undefined reference to `_sbrk_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(freer.o): In function `_malloc_trim_r':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdlib/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdlib/mallocr.c:3309: undefined reference to `_sbrk_r'
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdlib/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdlib/mallocr.c:3351: undefined reference to `_sbrk_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(freer.o):C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdlib/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdlib/mallocr.c:3327: more undefined references to `_sbrk_r' follow
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o):(.literal+0x0): undefined reference to `_read_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o):(.literal+0x4): undefined reference to `_write_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o):(.literal+0x8): undefined reference to `_lseek_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o):(.literal+0xc): undefined reference to `_close_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o): In function `__sread':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdio/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdio/stdio.c:47: undefined reference to `_read_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o): In function `__swrite':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdio/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdio/stdio.c:84: undefined reference to `_write_r'
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdio/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdio/stdio.c:76: undefined reference to `_lseek_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o): In function `__sseek':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdio/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdio/stdio.c:103: undefined reference to `_lseek_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(stdio.o): In function `__sclose':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdio/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdio/stdio.c:120: undefined reference to `_close_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(makebuf.o):(.literal+0x8): undefined reference to `_fstat_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(makebuf.o): In function `__smakebuf':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\stdio/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\stdio/makebuf.c:52: undefined reference to `_fstat_r'
/home/morgan/devel/ESP8266/esp_iot_sdk_v1.4.0//lib/libc.a(sysfstat.o): In function `fstat':
C:\build\build\RC-2010.1\lxinnovation\delivery\lx106\104196\xbuild\Target-libs\newlib\xtensa-elf\newlib\libc\syscalls/\build\tree\RC-2010.1_kuma\p4root\Xtensa\Target-libs\newlib\newlib\libc\syscalls/sysfstat.c:12: undefined reference to `_fstat_r'
collect2: error: ld returned 1 exit status
make: *** [build/rom0.elf] Error 1
trying to build using ntp and I'm receiving errors. I've seen errors like this before but only when trying to use malloc/zalloc vs os_zalloc as you are (I thought) correctly using.