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| author | Patrick Georgi <pgeorgi@google.com> | 2018-08-16 15:35:43 +0200 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-10-16 10:30:37 -0700 |
| commit | 69bc0deb614cc131cd669b5ac8935e68d10ac6e5 (patch) | |
| tree | 5d85ef9f55aa7a34ba5d4de3ddefed95d87175e3 /core/cortex-m0/ec.lds.S | |
| parent | 9a16a6b9cf701d43ba0e7e8f71ac081e15430be3 (diff) | |
| download | chrome-ec-69bc0deb614cc131cd669b5ac8935e68d10ac6e5.tar.gz | |
chip/stm32: Convert usb_endpoints to C so gcc's LTO knows about it
If we keep it assembly-only, the link time optimizer gets confused and
eliminates seemingly unused functions, to then replace references to
them with the "no handler" defaults in a later step.
Similar approach as with vecttable: Implement the table in C so LTO
knows the entire story.
BUG=b:65441143
BRANCH=none
TEST=usb_ep_{rx,tx,event} and usb_iface_request look more reasonable in
disassembly on whiskers.
Change-Id: I35ccfd68cda2d0022aa464ecf622f4eef71c3398
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1177710
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Jonathan Brandmeyer <jbrandmeyer@chromium.org>
Reviewed-by: Jonathan Brandmeyer <jbrandmeyer@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Diffstat (limited to 'core/cortex-m0/ec.lds.S')
| -rw-r--r-- | core/cortex-m0/ec.lds.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/core/cortex-m0/ec.lds.S b/core/cortex-m0/ec.lds.S index c72ec5a5cc..d7830be852 100644 --- a/core/cortex-m0/ec.lds.S +++ b/core/cortex-m0/ec.lds.S @@ -172,6 +172,10 @@ SECTIONS __usb_desc_end = .; . = ALIGN(4); KEEP(*(.rodata.usb_ep)) + KEEP(*(.rodata.usb_ep.usb_ep_tx)) + KEEP(*(.rodata.usb_ep.usb_ep_rx)) + KEEP(*(.rodata.usb_ep.usb_ep_event)) + KEEP(*(.rodata.usb_ep.usb_iface_request)) . = ALIGN(4); *(.rodata*) |