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cpu: Add TLS symbols for newer picolibc to linker scripts

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Newer picolibc versions require some additional symbols defined in the
linker script to correctly manage alignment constraints on thread
local storage.

Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Keith Packard 2023-03-02 22:48:06 -08:00
parent 743ae3f095
commit fb01e6a3fb
3 changed files with 9 additions and 0 deletions
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4
cpu/cortexm_common/ldscripts/cortexm_base.ld
View File

@ -132,6 +132,10 @@ SECTIONS
} > rom
__tls_size = __tbss_end - __tdata_start;
__tbss_size = __tls_size - __tdata_size;
PROVIDE( __tbss_offset = ADDR(.tbss) - ADDR(.tdata) );
PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
PROVIDE( __arm64_tls_tcb_offset = MAX(16, __tls_align) );
/* .ARM.exidx is sorted, so has to go in its own output section. */
PROVIDE_HIDDEN (__exidx_start = .);

3
cpu/lpc23xx/ldscripts/lpc23xx.ld
View File

@ -106,6 +106,9 @@ SECTIONS
} > rom
__tls_size = __tbss_end - __tdata_start;
__tbss_size = __tls_size - __tdata_size;
PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
PROVIDE( __arm64_tls_tcb_offset = MAX(16, __tls_align) );
/* .ARM.exidx is sorted, so has to go in its own output section. */
PROVIDE_HIDDEN (__exidx_start = .);

2
cpu/riscv_common/ldscripts/riscv_base.ld
View File

@ -159,6 +159,8 @@ SECTIONS
} >flash : tls
__tls_size = __tbss_end - __tdata_start;
__tbss_size = __tls_size - __tdata_size;
PROVIDE( __tbss_offset = ADDR(.tbss) - ADDR(.tdata) );
PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
.lalign :
{