pkarashchenko opened a new issue, #17443:
URL: https://github.com/apache/nuttx/issues/17443
### Description / Steps to reproduce the issue
Try to build `same70-xplained:mcuboot-loader` config with LTO enabled with
`arm-none-eabi-gcc (GCC) 15.2.0` and get next build/link error:
```
LD: nuttx
/usr/local/opt/arm-none-eabi-binutils/bin/arm-none-eabi-ld: sam_start.o
(symbol from plugin): in function `__start':
(.text+0x0): multiple definition of `__start'; crt0.o (symbol from
plugin):(.text+0x0): first defined here
lto-wrapper: warning: Extra option to '-Xassembler': -mthumb, dropping all
'-Xassembler' and '-Wa' options.
chip/sam_start.c:153:6: warning: type of '__start' does not match original
declaration [-Wlto-type-mismatch]
153 | void __start(void)
| ^
common/crt0.c:163:6: note: type mismatch in parameter 1
163 | void __start(int argc, char *argv[])
| ^
common/crt0.c:163:6: note: type 'int' should match type 'void'
common/crt0.c:163:6: note: '__start' was previously declared here
/usr/local/opt/arm-none-eabi-binutils/bin/arm-none-eabi-ld:
/var/folders/6l/6br4bshn12x2s8hjfqsqjt5c0000gn/T//ccQe8Sts.ltrans0.ltrans.o: in
function `__assert.constprop.0':
<artificial>:(.text.__assert.constprop.0+0x284): undefined reference to
`memset'
/usr/local/opt/arm-none-eabi-binutils/bin/arm-none-eabi-ld: (memset):
Unknown destination type (ARM/Thumb) in
/var/folders/6l/6br4bshn12x2s8hjfqsqjt5c0000gn/T//ccQe8Sts.ltrans0.ltrans.o
<artificial>:(.text.__assert.constprop.0+0x284): dangerous relocation:
unsupported relocation
/usr/local/opt/arm-none-eabi-binutils/bin/arm-none-eabi-ld:
/var/folders/6l/6br4bshn12x2s8hjfqsqjt5c0000gn/T//ccQe8Sts.ltrans0.ltrans.o: in
function `__start':
<artificial>:(.text.__start+0x1c): undefined reference to `main'
Memory region Used Size Region Size %age Used
arch/arm/samv7: optimize MCUboot loader configuration
flash: 7560 B 144 KB 5.13%
sram: 2560 B 384 KB 0.65%
collect2: error: ld returned 1 exit status
make[1]: *** [nuttx] Error 1
make: *** [nuttx] Error 2
```
### On which OS does this issue occur?
[OS: Mac]
### What is the version of your OS?
MACOS 15.6.1
### NuttX Version
master
### Issue Architecture
[Arch: arm]
### Issue Area
[Area: Build System], [Area: Board support]
### Host information
_No response_
### Verification
- [x] I have verified before submitting the report.
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