将函数放入指定的section（通过__attribute__((section(".nearsram_code")))指定，section定位为L1SRAM的范围，L1PSRAM: ORIGIN = 0x00E00000 LENGTH = 0x00008000），部分函数报错。
比如有函数A调用函数B，函数A指定section之后，无warning，功能正常，函数B也放入section，报warning如下，且函数功能不正常。 请帮助解决下。
多谢！
warning: Possible codesize or performance degradation. Section
".nearsram_code:PLLCalc:pll.oe66" has calls to rts routines, but rts is
placed out of range from call site at 0xe002c4, or in a different section.
To optimize codesize, either 1) place rts closer to call site, or 2) place
rts in same section, or 3) compile with --disable_push_pop.
warning: Possible codesize or performance degradation. Section
".nearsram_code:PLLCalc:pll.oe66" has calls to rts routines, but rts is
placed out of range from call site at 0xe00000, or in a different section.
To optimize codesize, either 1) place rts closer to call site, or 2) place
rts in same section, or 3) compile with --disable_push_pop.
