Project:Toolchain/Porting notes

Porting notes

The project maintains various porting notes.

This section describes common build breakages, example fixes and a bit of explanation. Useful to craft the patch and explain upstream why change is needed.

binutils

binutils-2.31.1

• Test failures

binutils-2.32

• Project:Toolchain/Binutils_2.32_upgrade_notes/elfutils_0.175: unable to initialize decompress status for section .debug_info

binutils-2.34

Tracker bug #707898

• Project:Toolchain/Binutils_2.34_porting_notes/undefined reference to bfd_get_section_*, example bug #707846

gcc

gcc-8

• Bug tracker gcc-8 porting bug #654766
• error: -Wabi won't warn about anything [-Werror=abi], example bug #663928

gcc-9

• Bug tracker for gcc-9 porting bug #685044
• error: expected '(' before 'volatile', example bug #679330

gcc-10

• Bug tracker for gcc-10 porting bug #706426
• -fno-common, multiple definition of 'foo': first defined here, example bug #705730

gcc-11

• Bug tracker for gcc-11 porting bug #732706

gcc-12

• Bug tracker for gcc-12 porting bug #839906

gcc-13

• Bug tracker for gcc-13 porting bug #865117
• error: ‘uint64_t’ does not name a type, example bug #865119

gcc-14

• Bug tracker for gcc-14 porting bug #914580
• Modern C porting

glibc

glibc-2.26

• sysmacros.h: missing major(), minor() macros
• xlocale.h not found
• glibc-2.26+ /etc/nsswitch.conf changes
• Migrating from SunRPC to libtirpc

glibc-2.27

• pow10, pow10f and pow10l removed
• ld: cannot find -lieee

glibc-2.28

Tracker: bug #663916

• fseeko, fflush are broken for bundled gnulib, example bug #663242
• linknamespace tests (>400) fail when upgrading from 2.27, example bug #669208
• error: FILE {aka struct _IO_FILE } has no member named ..., example bug #669330
• Test failures

glibc-2.30

Tracker: bug #691846

• fatal error: sys/stropts.h: No such file or directory, example bug #691762
• gettid() related issues, glibc 2.30 declares its own gettid, examples bug #691886 bug #691836
• error: RES_USE_INET6 undeclared (first use in this function), example bug #692768
• Test failures

glibc-2.31

Tracker: bug #708318

• stime() symbol removal: a.c:.text.startup+<snip>: undefined reference to stime, example bug #709642
• Test failures

glibc-2.32

Tracker: bug #736174

• fatal error: sys/sysctl.h: No such file or directory, example bug #736892
• Test failures

glibc-2.33

Tracker: bug #768369

• ...

glibc-2.34

Tracker: bug #803482

• error: expected declaration specifiers or "..." before "(" token, bug #803485, conflicting macros in outdated gnulib
• error: missing binary operator before token "(", SIGSTKSZ, bug #803554, change of SIGSTKSZ definition, outdated gnulib
• error: variably modified ‘sigsegv_stack’ at file scope, SIGSTKSZ, bug #803644, change of SIGSTKSZ definition
• error: void value not ignored as it ought to be, closefrom, bug #803557, introduction of void closefrom
• error: too few arguments to function ‘close_range’, bug #803632, introduction of close_range with 3 params
• Test failures

glibc-2.35

Tracker: bug #832701

• Test failures

glibc-2.36

Tracker: bug #863215

• Test failures

libffi

libffi-3.3

Tracker: bug #667508

• FFI_SYSV was not declared in this scope, example bug #667476

libffi-3.4

Tracker: bug #801109

• USE=exec-static-trampoline exposes a latent bug in
  • ghc (bug only)
  • gobject-introspection (example fix)

linux-headers

linux-headers-5.2

Tracker: bug #690296

• SIOCGSTAMP was not declared in this scope, example bug #690788