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linker: cpp: Fix C++ exception handling info section linking

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The `.eh_frame_hdr` and `.eh_frame` ROM sections, which contain read-
only C++ exception handling information, are currently specified in
`cplusplus-ram.ld`, and this can cause the linker output location
counter to take a ROM region address while in the RAM region.

This commit relocates these sections to `cplusplus-rom.ld` in order to
prevent the linker output location counter from getting corrupted.

For more details, refer to the issue #35972.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit is contained in:
Stephanos Ioannidis 2021-06-06 02:12:14 +09:00 • committed by Kumar Gala
commit 7e47ef281e
2 changed files with 15 additions and 12 deletions
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11
include/linker/cplusplus-ram.ld
View file

@ -11,17 +11,6 @@
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#if defined (CONFIG_EXCEPTIONS)
SECTION_PROLOGUE(.eh_frame_hdr,,)
{
*(.eh_frame_hdr)
}
SECTION_PROLOGUE(.eh_frame,,)
{
KEEP (*(SORT_NONE(EXCLUDE_FILE (*crtend.o) .eh_frame)))
KEEP (*(SORT_NONE(.eh_frame)))
} GROUP_LINK_IN(ROMABLE_REGION)
SECTION_PROLOGUE(.tm_clone_table,,)
{
KEEP (*(SORT_NONE(EXCLUDE_FILE (*crtend.o) .tm_clone_table)))

16
include/linker/cplusplus-rom.ld
View file

@ -9,4 +9,18 @@
{
*(.gcc_except_table .gcc_except_table.*)
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#endif
#if defined (CONFIG_EXCEPTIONS)
SECTION_PROLOGUE(.eh_frame_hdr,,)
{
*(.eh_frame_hdr)
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
SECTION_PROLOGUE(.eh_frame,,)
{
KEEP (*(SORT_NONE(EXCLUDE_FILE (*crtend.o) .eh_frame)))
KEEP (*(SORT_NONE(.eh_frame)))
} GROUP_ROM_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#endif /* CONFIG_EXCEPTIONS */
#endif /* CONFIG_CPLUSPLUS */