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feat(esp_libc): make picolibc default libc

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This commit is contained in:
Alexey Lapshin
2025-12-06 00:08:35 +07:00
parent d9f98b8ef6
commit ad7f4b9670
86 changed files with 1077 additions and 423 deletions
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components/esp_system/ld/elf_misc.ld.in
+2
View File
@@ -69,7 +69,9 @@
* And so forth...
*/
*(.rela.*)
#if CONFIG_LIBC_NEWLIB
*(.got .got.plt) /* TODO: GCC-382 */
#endif
#if !EH_FRAME_LINKING_ENABLED
*(.eh_frame_hdr)
*(.eh_frame)
components/esp_system/ld/esp32/sections.ld.in
+14
View File
@@ -360,12 +360,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .ctors.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .ctors))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -388,12 +390,24 @@ SECTIONS
/* TLS data. */
ALIGNED_SYMBOL(4, _thread_local_start)
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata)
*(.tdata.*)
*(.tbss)
*(.tbss.*)
_thread_local_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_PICOLIBC_REENT_STUB()
_flash_rodata_align = ALIGNOF(.flash.rodata);
components/esp_system/ld/esp32c2/sections.ld.in
+33 -10
View File
@@ -188,6 +188,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -199,12 +202,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -254,24 +259,42 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
. = ALIGN(ALIGNOF(.flash.tbss));
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -284,7 +307,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32c3/sections.ld.in
+33 -10
View File
@@ -310,6 +310,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -321,12 +324,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -376,24 +381,42 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
. = ALIGN(ALIGNOF(.flash.tbss));
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -406,7 +429,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32c5/sections.ld.in
+37 -16
View File
@@ -359,6 +359,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -370,12 +373,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -425,32 +430,48 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
_thread_local_data_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.tbss));
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
#if CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
/* Align the end of flash rodata region as per PMP granularity to allow using the
* page alignment gap created while mapping the flash region into the PSRAM memory.
*/
. = ALIGN(_esp_pmp_align_size);
#endif // CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -463,7 +484,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32c6/sections.ld.in
+33 -10
View File
@@ -355,6 +355,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -366,12 +369,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -421,24 +426,42 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
. = ALIGN(ALIGNOF(.flash.tbss));
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -451,7 +474,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32c61/sections.ld.in
+37 -16
View File
@@ -217,6 +217,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -228,6 +231,7 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
@@ -235,6 +239,7 @@ SECTIONS
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -284,32 +289,48 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
_thread_local_data_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.tbss));
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
#if CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
/* Align the end of flash rodata region as per PMP granularity to allow using the
* page alignment gap created while mapping the flash region into the PSRAM memory.
*/
. = ALIGN(_esp_pmp_align_size);
#endif // CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -322,7 +343,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32h2/sections.ld.in
+33 -10
View File
@@ -357,6 +357,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -368,12 +371,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -423,24 +428,42 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
. = ALIGN(ALIGNOF(.flash.tbss));
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -453,7 +476,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32h21/sections.ld.in
+33 -10
View File
@@ -346,6 +346,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -357,12 +360,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -412,24 +417,42 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
. = ALIGN(ALIGNOF(.flash.tbss));
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -442,7 +465,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32h4/sections.ld.in
+33 -10
View File
@@ -191,6 +191,9 @@ SECTIONS
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -202,12 +205,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -257,24 +262,42 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
. = ALIGN(ALIGNOF(.flash.tbss));
_thread_local_data_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
} > default_rodata_seg
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -287,7 +310,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
mapping[rodata_noload]
} > default_rodata_seg
components/esp_system/ld/esp32p4/sections.ld.in
+37 -16
View File
@@ -362,6 +362,9 @@ SECTIONS
arrays[flash_rodata]
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -379,12 +382,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -434,32 +439,48 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
_thread_local_data_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.tbss));
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
#if CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
/* Align the end of flash rodata region as per PMP granularity to allow using the
* page alignment gap created while mapping the flash region into the PSRAM memory.
*/
. = ALIGN(_esp_pmp_align_size);
#endif // CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
_thread_local_data_end = ABSOLUTE(.);
} > rodata_seg_low
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
} > rodata_seg_low
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -472,7 +493,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
arrays[rodata_noload]
mapping[rodata_noload]
components/esp_system/ld/esp32p4/sections.rev3.ld.in
+38 -16
View File
@@ -388,6 +388,9 @@ SECTIONS
arrays[flash_rodata]
mapping[flash_rodata]
#if CONFIG_LIBC_PICOLIBC
*(.got .got.plt) /* TODO: GCC-439 */
#endif
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
@@ -405,12 +408,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -460,11 +465,37 @@ SECTIONS
.flash.tdata :
{
/* Keep tdata and tbss sections contiguous (no gaps between them).
* The TLS runtime code calculates offsets assuming these sections are
* adjacent. Gaps would cause incorrect address calculations, leading
* to accessing wrong memory.
*
* Storing all TLS structures in flash increases binary size, but avoids
* runtime issues and reduces TLS allocations on the stack.
*/
/* tdata sections */
_thread_local_data_start = ABSOLUTE(.);
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata .tdata.* .gnu.linkonce.td.*)
_thread_local_data_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.tbss));
/* tbss sections */
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
. = ALIGN(ALIGNOF(.flash.rodata_noload));
#if CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
/* Align the end of flash rodata region as per PMP granularity to allow using the
@@ -472,20 +503,11 @@ SECTIONS
*/
. = ALIGN(_esp_pmp_align_size);
#endif // CONFIG_SPIRAM_RODATA && CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
_thread_local_data_end = ABSOLUTE(.);
} > rodata_seg_low
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.tbss)
.flash.tbss (NOLOAD) :
{
_thread_local_bss_start = ABSOLUTE(.);
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon .tcommon.*)
_thread_local_bss_end = ABSOLUTE(.);
} > rodata_seg_low
ASSERT_SECTIONS_GAP(.flash.tdata, .flash.rodata_noload)
ASSERT(_thread_local_data_end == _thread_local_bss_start,
"tdata and tbss must be contiguous.")
ASSERT_PICOLIBC_REENT_STUB()
/**
* This section contains all the rodata that is not used
@@ -498,7 +520,7 @@ SECTIONS
* driver to maintain the virtual address.
* NOLOAD rodata may not be included in this section.
*/
_rodata_reserved_end = ADDR(.flash.tbss);
_rodata_reserved_end = .;
arrays[rodata_noload]
mapping[rodata_noload]
components/esp_system/ld/esp32s2/sections.ld.in
+14
View File
@@ -363,12 +363,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .ctors.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .ctors))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -391,12 +393,24 @@ SECTIONS
/* TLS data. */
ALIGNED_SYMBOL(4, _thread_local_start)
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata)
*(.tdata.*)
*(.tbss)
*(.tbss.*)
_thread_local_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_PICOLIBC_REENT_STUB()
_flash_rodata_align = ALIGNOF(.flash.rodata);
components/esp_system/ld/esp32s3/sections.ld.in
+14
View File
@@ -374,12 +374,14 @@ SECTIONS
* Excluding crtbegin.o/crtend.o since IDF doesn't use the toolchain crt.
*/
ALIGNED_SYMBOL(4, __preinit_array_start)
ALIGNED_SYMBOL(4, __bothinit_array_start)
KEEP (*(.preinit_array))
__preinit_array_end = ABSOLUTE(.);
ALIGNED_SYMBOL(4, __init_array_start)
KEEP (*(SORT_BY_INIT_PRIORITY(EXCLUDE_FILE (*crtend.* *crtbegin.*) .ctors.*)))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .ctors))
__init_array_end = ABSOLUTE(.);
__bothinit_array_end = ABSOLUTE(.);
/* Addresses of memory regions reserved via SOC_RESERVE_MEMORY_REGION() */
ALIGNED_SYMBOL(4, soc_reserved_memory_region_start)
@@ -402,12 +404,24 @@ SECTIONS
/* TLS data. */
ALIGNED_SYMBOL(4, _thread_local_start)
#if CONFIG_LIBC_PICOLIBC
_picolibc_reent_stub_start = ABSOLUTE(.);
KEEP(*(.tdata.errno))
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
/* Reproduce the public fields from struct _reent. */
KEEP(*(.tdata.tls_stdin))
KEEP(*(.tdata.tls_stdout))
KEEP(*(.tdata.tls_stderr))
#endif // CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
_picolibc_reent_stub_end = ABSOLUTE(.);
#endif // CONFIG_LIBC_PICOLIBC
*(.tdata)
*(.tdata.*)
*(.tbss)
*(.tbss.*)
_thread_local_end = ABSOLUTE(.);
} > default_rodata_seg
ASSERT_PICOLIBC_REENT_STUB()
_flash_rodata_align = ALIGNOF(.flash.rodata);
components/esp_system/ld/ld.common
+11
View File
@@ -100,3 +100,14 @@ ASSERT((ADDR(NEXT_SECTION) == ADDR(PREV_SECTION) + SIZEOF(PREV_SECTION)), \
#else
#define SECTION_AFTER_FLASH_RODATA .flash.tdata
#endif
#if CONFIG_LIBC_PICOLIBC
# if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
# define PICOLIBC_REENT_STUB 16
# else
# define PICOLIBC_REENT_STUB 4
# endif
#define ASSERT_PICOLIBC_REENT_STUB() ASSERT((_picolibc_reent_stub_end - _picolibc_reent_stub_start) == PICOLIBC_REENT_STUB, "Newlib _reent stub have wrong size")
#else
#define ASSERT_PICOLIBC_REENT_STUB()
#endif