Hi, Since past 3–4 days, I am getting consistent failures while compiling the kernel – current. I tried commenting out offending drivers/modules in my kernel config. But, it looks like a lot of drivers are resulting into this compilation failure. The source of errors seems to be drivers taking an int pointer of a struct, which could be a common operation.
# compile MYKERNEL/ar5416_xmit.o gcc -mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse -mno-avx -msoft-float -mindirect-branch=thunk -mindirect-branch-register -ffreestanding -fno-zero-initialized-in-bss -fno-delete-null-pointer-checks -g -O2 -fno-omit-frame-pointer -fstack-protector -Wstack-protector --param ssp-buffer-size=1 -fstack-usage -Wstack-usage=3584 -fno-strict-aliasing -fno-common -std=gnu99 -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wold-style-definition -Wswitch -Wshadow -Wcast-qual -Wwrite-strings -Wno-unreachable-code -Wno-pointer-sign -Wno-attributes -Wno-type-limits -Wextra -Wno-unused-parameter -Wold-style-definition -Wno-sign-compare -Walloca -Damd64 -Dx86_64 -I. -I../../../../external/mit/xen-include-public/dist/ -I../../../../external/bsd/libnv/dist -I../../../../external/bsd/acpica/dist -I../../../../../common/lib/libx86emu -I../../../../../common/lib/libc/misc -I../../../../../common/include -I../../../../arch -I../../../.. -nostdinc -DCOMPAT_UTILS -D__XEN_INTERFACE_VERSION__=0x3020a -DDIAGNOSTIC -DCOMPAT_44 -D_KERNEL -D_KERNEL_OPT -std=gnu99 -I../../../../lib/libkern/../../../common/lib/libc/quad -I../../../../lib/libkern/../../../common/lib/libc/string -I../../../../lib/libkern/../../../common/lib/libc/arch/x86_64/string -I../../../../lib/libkern/../../../common/lib/libc/arch/x86_64/atomic -I../../../../lib/libkern/../../../common/lib/libc/hash/sha3 -D_FORTIFY_SOURCE=2 -I../../../../external/isc/atheros_hal/dist -I../../../../external/isc/atheros_hal/ic -I../../../../../common/include -I../../../../external/bsd/acpica/dist/include -I../../../../external/bsd/libnv/dist -c ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c -o ar5416_xmit.o In file included from ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c:28: ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c: In function ‘ar5416ProcTxDesc’: ../../../../external/isc/atheros_hal/dist/ar5416/ar5416desc.h:32:3: error: taking address of packed member of ‘struct ar5416_desc’ may result in an unaligned pointer value [-Werror=address-of-packed-member] 32 | ((uint32_t*)(&(_ads)->u.tx.status[_get_index(_ah)])) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c:470:26: note: in expansion of macro ‘AR5416_DS_TXSTATUS’ 470 | uint32_t *ds_txstatus = AR5416_DS_TXSTATUS(ah,ads); | ^~~~~~~~~~~~~~~~~~ ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c:560:27: error: this statement may fall through [-Werror=implicit-fallthrough=] 560 | case 3: ts->ts_longretry += MS(ads->ds_ctl2, AR_XmitDataTries2); ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c:561:2: note: here 561 | case 2: ts->ts_longretry += MS(ads->ds_ctl2, AR_XmitDataTries1); | ^~~~ ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c:561:27: error: this statement may fall through [-Werror=implicit-fallthrough=] 561 | case 2: ts->ts_longretry += MS(ads->ds_ctl2, AR_XmitDataTries1); ../../../../external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c:562:2: note: here 562 | case 1: ts->ts_longretry += MS(ads->ds_ctl2, AR_XmitDataTries0); | ^~~~ cc1: all warnings being treated as errors *** Error code 1 Stop. make: stopped in /usr/src/sys/arch/amd64/compile/MYKERNEL Best, Salil
