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https://github.com/zephyrproject-rtos/zephyr
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0a7b65ef5e
MWDT toolchain adds additional suffix to sections name in case of ffunction-sections / fdata-sections are enabled. As proposed by Andy Ross let's pick a single set of rules and syntax that work. Suggested-by: Andy Ross <andy@plausible.org> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
47 lines
1.2 KiB
Plaintext
47 lines
1.2 KiB
Plaintext
/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* This creates a special section which is not included by the final binary,
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* instead it is consumed by the gen_isr_tables.py script.
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*
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* What we create here is a data structure:
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*
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* struct {
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* uint32_t num_vectors; <- typically CONFIG_NUM_IRQS
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* struct _isr_list isrs[]; <- Usually of smaller size than num_vectors
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* }
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*
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* Which indicates the memory address of the number of isrs that were
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* defined, the total number of IRQ lines in the system, followed by
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* an appropriate number of instances of struct _isr_list. See
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* include/sw_isr_table.h
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*
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* You will need to declare a bogus memory region for IDT_LIST. It doesn't
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* matter where this region goes as it is stripped from the final ELF image.
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* The address doesn't even have to be valid on the target. However, it
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* shouldn't overlap any other regions. On most arches the following should be
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* fine:
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*
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* MEMORY {
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* .. other regions ..
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* IDT_LIST : ORIGIN = 0xfffff7ff, LENGTH = 2K
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* }
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*/
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#ifndef LINKER_PASS2
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SECTION_PROLOGUE(.intList,,)
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{
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KEEP(*(.irq_info*))
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KEEP(*(.intList*))
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} GROUP_LINK_IN(IDT_LIST)
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#else
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/DISCARD/ :
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{
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KEEP(*(.irq_info*))
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KEEP(*(.intList*))
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}
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#endif
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