Alpine ipxe build

[robvanmieghem]

Check if the compiled ipxe works and document the requirements

[robvanmieghem]

apk add --no-cache bash git make openssl gcc perl coreutils musl-dev xz-dev syslinux xorriso bash setup/template.sh

It worked on a microvm with Alpine on the grid but in the builders I'm getting this error:

[BUILD] bin/isqrt.o
[-] build: In file included from include/string.h:23,
[-] build:                  from core/gdbudp.c:27:
[-] build: In function '__constant_memcpy',
[-] build:     inlined from 'memcpy' at arch/x86/include/bits/string.h:168:10,
[-] build:     inlined from 'gdbudp_send' at core/gdbudp.c:206:2,
[-] build:     inlined from 'gdbudp_send' at core/gdbudp.c:163:13:
[-] build: arch/x86/include/bits/string.h:94:44: error: array subscript 'const union <anonymous>[0]' is partly outside array bounds of 'uint8_t[6]' {aka 'unsigned char[6]'} [-Werror=array-bounds]
[-] build:    94 |                 dest_u->u32[0] = src_u->u32[0];
[-] build:       |                                  ~~~~~~~~~~^~~
[-] build: core/gdbudp.c: In function 'gdbudp_send':
[-] build: core/gdbudp.c:53:16: note: object 'dest_eth' of size 6
[-] build:    53 | static uint8_t dest_eth[ETH_ALEN];
[-] build:       |                ^~~~~~~~
[-] build: In function '__constant_memcpy',
[-] build:     inlined from 'memcpy' at arch/x86/include/bits/string.h:168:10,
[-] build:     inlined from 'gdbudp_send' at core/gdbudp.c:206:2,
[-] build:     inlined from 'gdbudp_send' at core/gdbudp.c:163:13:
[-] build: arch/x86/include/bits/string.h:95:44: error: array subscript 'const union <anonymous>[0]' is partly outside array bounds of 'uint8_t[6]' {aka 'unsigned char[6]'} [-Werror=array-bounds]
[-] build:    95 |                 dest_u->u16[2] = src_u->u16[2];
[-] build:       |                                  ~~~~~~~~~~^~~
[-] build: core/gdbudp.c: In function 'gdbudp_send':
[-] build: core/gdbudp.c:53:16: note: object 'dest_eth' of size 6
[-] build:    53 | static uint8_t dest_eth[ETH_ALEN];
[-] build:       |                ^~~~~~~~
[-] build: In function '__constant_memcpy',
[-] build:     inlined from 'memcpy' at arch/x86/include/bits/string.h:168:10,
[-] build:     inlined from 'gdbudp_recv' at core/gdbudp.c:137:4:
[-] build: arch/x86/include/bits/string.h:94:32: error: array subscript 'union <anonymous>[0]' is partly outside array bounds of 'uint8_t[6]' {aka 'unsigned char[6]'} [-Werror=array-bounds]
[-] build:    94 |                 dest_u->u32[0] = src_u->u32[0];
[-] build:       |                 ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
[-] build: core/gdbudp.c: In function 'gdbudp_recv':
[-] build: core/gdbudp.c:53:16: note: object 'dest_eth' of size 6
[-] build:    53 | static uint8_t dest_eth[ETH_ALEN];
[-] build:       |                ^~~~~~~~
[-] build: In function '__constant_memcpy',
[-] build:     inlined from 'memcpy' at arch/x86/include/bits/string.h:168:10,
[-] build:     inlined from 'gdbudp_recv' at core/gdbudp.c:137:4:
[-] build: arch/x86/include/bits/string.h:95:32: error: array subscript 'union <anonymous>[0]' is partly outside array bounds of 'uint8_t[6]' {aka 'unsigned char[6]'} [-Werror=array-bounds]
[-] build:    95 |                 dest_u->u16[2] = src_u->u16[2];
[-] build:       |                 ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
[-] build: core/gdbudp.c: In function 'gdbudp_recv':
[-] build: core/gdbudp.c:53:16: note: object 'dest_eth' of size 6
[-] build:    53 | static uint8_t dest_eth[ETH_ALEN];
[-] build:       |                ^~~~~~~~
[+] build:   [BUILD] bin/job.o
[+] build:   [BUILD] bin/linebuf.o
[+] build:   [BUILD] bin/lineconsole.o
[-] build: cc1: all warnings being treated as errors
[-] build: make: *** [Makefile.housekeeping:952: bin/gdbudp.o] Error 1

[maxux]

Can you give me information ? Alpine version, arch, etc ?

[robvanmieghem]

steps to reproduce ( on an ubuntu 22.04 amd64 vm on the grid):

docker run -it --rm alpine:3.17.2 /bin/sh
apk add --no-cache bash git make openssl gcc perl coreutils musl-dev xz-dev syslinux xorriso
wget -cnv https://github.com/threefoldtech/0-bootstrap/archive/refs/tags/v3.0.2.tar.gz  -O /tmp/src.tar.gz
tar --strip-components=1 -xzf /tmp/src.tar.gz -C ./
bash setup/template.sh

The alpine image inspect gives "Architecture": "amd64"

[robvanmieghem]

on an alpine microvm on the grid ( Alpine 3.15.0) it does work:

...
[+] ================================================================
[+] ipxe legacy template installed on: /opt/ipxe-template
[+] ipxe uefi template installed on: /opt/ipxe-template-uefi
[+] ================================================================

[robvanmieghem]

It also works in an alpine 3.15.0 docker ( on the same ubuntu 22.04 amd64 vm on the grid as used for the alpine:3.17.2)

[maxux]

Fixed using gcc-12 branch of our iPXE fork.

The problem is related to gcc 12 which is used in the latest alpine. The bug have been fixed in the latest master of upstream https://github.com/ipxe/ipxe. I merged that master into gcc-12 branch of our fork (https://github.com/threefoldtech/ipxe). It compiles.

Now we need to see if that latest version works correctly :)