diff options
| author | Tom Hughes <tomhughes@chromium.org> | 2022-10-28 09:09:14 -0700 |
|---|---|---|
| committer | Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2022-11-04 23:35:48 +0000 |
| commit | 39caf07089611bcd1ac01ac33907c77f415b93c5 (patch) | |
| tree | d4971dd2ac03f1aa738727c20f5867af1362e342 | |
| parent | 365143e8cea63db9b1016ff336cad37463899c88 (diff) | |
| download | chrome-ec-factory-brya-15231.B-main.tar.gz | |
chip/mchp/lfw: Discard ARM.* sectionsfactory-brya-15231.B-main
Linking with clang/lld fails since it tries to include .ARM.exidx in the
VECTOR region:
ld.lld: error: section '.ARM.exidx' will not fit in region 'VECTOR':
overflowed by 328 bytes
We don't need the exception index table or exception table (see
https://crrev.com/c/3857943). This matches the behavior in our other
linker scripts:
https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform/ec/core/cortex-m/ec.lds.S;l=745;drc=84b2904dead700e10073080c54e69ea162d8a7c5
This change does not affect the gcc/ld build (identical output before and
after).
BRANCH=none
BUG=b:172020503
TEST=./util/compare_build.sh -b all -j 120
=> MATCH
Signed-off-by: Tom Hughes <tomhughes@chromium.org>
Change-Id: I65df11f3ab0c439ea3d4ce2805afaac942b22a0e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3989667
Reviewed-by: Diana Z <dzigterman@chromium.org>
Code-Coverage: Zoss <zoss-cl-coverage@prod.google.com>
| -rw-r--r-- | chip/mchp/lfw/ec_lfw.ld | 8 | ||||
| -rw-r--r-- | chip/mchp/lfw/ec_lfw_416kb.ld | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/chip/mchp/lfw/ec_lfw.ld b/chip/mchp/lfw/ec_lfw.ld index 1c745d5d2a..d178a42280 100644 --- a/chip/mchp/lfw/ec_lfw.ld +++ b/chip/mchp/lfw/ec_lfw.ld @@ -82,4 +82,12 @@ SECTIONS } >SRAM __image_size = LOADADDR(.text) + SIZEOF(.text) - ORIGIN(VECTOR); + + /* + * Discard C++ exception index table and exception table. These are + * described in more detail in "Exception Handling ABI for ARM + * Architecture": + * https://github.com/ARM-software/abi-aa/blob/60a8eb8c55e999d74dac5e368fc9d7e36e38dda4/ehabi32/ehabi32.rst#54the-object-producer-interface + */ + /DISCARD/ : { *(.ARM.*) } } diff --git a/chip/mchp/lfw/ec_lfw_416kb.ld b/chip/mchp/lfw/ec_lfw_416kb.ld index 93d70ffbe8..c7dfacada3 100644 --- a/chip/mchp/lfw/ec_lfw_416kb.ld +++ b/chip/mchp/lfw/ec_lfw_416kb.ld @@ -86,4 +86,12 @@ SECTIONS } >SRAM __image_size = LOADADDR(.text) + SIZEOF(.text) - ORIGIN(VECTOR); + + /* + * Discard C++ exception index table and exception table. These are + * described in more detail in "Exception Handling ABI for ARM + * Architecture": + * https://github.com/ARM-software/abi-aa/blob/60a8eb8c55e999d74dac5e368fc9d7e36e38dda4/ehabi32/ehabi32.rst#54the-object-producer-interface + */ + /DISCARD/ : { *(.ARM.*) } } |