2021-10-18 05:02:19 -04:00
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/*
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esp_rom: remove functions which depend on sizeof(struct stat)
...and all their callers.
With the upcoming switch from sizeof(time_t)==4 to sizeof(time_t)==8,
sizeof(struct stat) is also increasing.
A few newlib functions present in ROM allocate 'struct stat' on the
stack and call _fstat_r on this structure. The implementation of
fstat is provided in ESP-IDF. This implementation will often do
memset(st, 0, sizeof(*st)), where st is 'struct stat*', before setting
some fields of this structure. If IDF is built with sizeof(st)
different from sizeof(st) which ROM was built with, this will lead
to an out-of-bounds write and a stack corruption.
This commit removes problematic ROM functions from the linker script.
Here are the functions which allocate 'struct stat':
* _isatty_r (in ROM)
* __swhatbuf_r, called by __smakebuf_r, called by __swsetup_r and
__srefill_r (in ROM)
* _fseeko_r (not in ROM)
* glob2 (not in ROM)
* _gettemp (not in ROM)
As a result, these functions are used from libc.a, and use correct
size of 'stat' structure.
Closes https://github.com/espressif/esp-idf/issues/7980
2022-01-06 09:20:04 -05:00
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* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
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2021-10-18 05:02:19 -04:00
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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2021-06-10 00:53:34 -04:00
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/* ROM function interface esp32b1z.rom.newlib.ld for esp32b1z
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*
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*
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* Generated from ./interface-esp32b1z.yml md5sum a8cce65aa1422e5781ad0d729ef0a0a6
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*
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* Compatible with ROM where ECO version equal or greater to 0.
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*
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* THIS FILE WAS AUTOMATICALLY GENERATED. DO NOT EDIT.
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*/
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/***************************************
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Group newlib
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***************************************/
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/* Functions */
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esp_rom_newlib_init_common_mutexes = 0x40000358;
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memset = 0x4000035c;
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memcpy = 0x40000360;
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memmove = 0x40000364;
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memcmp = 0x40000368;
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strcpy = 0x4000036c;
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strncpy = 0x40000370;
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strcmp = 0x40000374;
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strncmp = 0x40000378;
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strlen = 0x4000037c;
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strstr = 0x40000380;
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bzero = 0x40000384;
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sbrk = 0x4000038c;
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isalnum = 0x40000390;
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isalpha = 0x40000394;
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isascii = 0x40000398;
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isblank = 0x4000039c;
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iscntrl = 0x400003a0;
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isdigit = 0x400003a4;
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islower = 0x400003a8;
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isgraph = 0x400003ac;
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isprint = 0x400003b0;
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ispunct = 0x400003b4;
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isspace = 0x400003b8;
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isupper = 0x400003bc;
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toupper = 0x400003c0;
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tolower = 0x400003c4;
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toascii = 0x400003c8;
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memccpy = 0x400003cc;
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memchr = 0x400003d0;
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memrchr = 0x400003d4;
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strcasecmp = 0x400003d8;
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strcasestr = 0x400003dc;
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strcat = 0x400003e0;
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strdup = 0x400003e4;
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strchr = 0x400003e8;
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strcspn = 0x400003ec;
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strcoll = 0x400003f0;
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strlcat = 0x400003f4;
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strlcpy = 0x400003f8;
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strlwr = 0x400003fc;
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strncasecmp = 0x40000400;
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strncat = 0x40000404;
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strndup = 0x40000408;
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strnlen = 0x4000040c;
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strrchr = 0x40000410;
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strsep = 0x40000414;
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strspn = 0x40000418;
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strtok_r = 0x4000041c;
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strupr = 0x40000420;
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longjmp = 0x40000424;
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setjmp = 0x40000428;
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abs = 0x4000042c;
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div = 0x40000430;
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labs = 0x40000434;
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ldiv = 0x40000438;
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qsort = 0x4000043c;
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rand_r = 0x40000440;
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rand = 0x40000444;
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srand = 0x40000448;
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utoa = 0x4000044c;
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itoa = 0x40000450;
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atoi = 0x40000454;
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atol = 0x40000458;
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strtol = 0x4000045c;
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strtoul = 0x40000460;
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PROVIDE( fflush = 0x40000464 );
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PROVIDE( _fflush_r = 0x40000468 );
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PROVIDE( _fwalk = 0x4000046c );
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PROVIDE( _fwalk_reent = 0x40000470 );
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PROVIDE( __swbuf_r = 0x4000047c );
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__swbuf = 0x40000480;
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/* Data (.data, .bss, .rodata) */
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syscall_table_ptr = 0x3fcdffdc;
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_global_impure_ptr = 0x3fcdffd8;
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