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* [Bug driver/115368] New: Wrong order of gcc include paths on musl systems @ 2024-06-06 7:00 raj.khem at gmail dot com 2024-06-06 7:03 ` [Bug driver/115368] " raj.khem at gmail dot com ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: raj.khem at gmail dot com @ 2024-06-06 7:00 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115368 Bug ID: 115368 Summary: Wrong order of gcc include paths on musl systems Product: gcc Version: 14.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: driver Assignee: unassigned at gcc dot gnu.org Reporter: raj.khem at gmail dot com Target Milestone: --- When doing cross-builds targeting musl based systems, gcc driver adds -iprefix to cc1/cc1plus call, the path is based on gcc cross compiler installation location, and points to GCC private headers which override some of system headers e.g. stddef.h stdint.h, stdarg.h to name a few. This works ok with glibc based systems but musl does not depend/use gcc's private headers [1] and -iprefix prepends to search path which means the headers from gcc installation will be picked up first. This causes problems e.g. when configuring python build, it tries to detect platform and logic to detect musl system is based on musl specific define coming from stdarg.h, however musl cross gcc feeds the gcc's own stdarg.h header and the test fails. [1] https://gitlab.alpinelinux.org/alpine/aports/-/issues/12477#note_145159 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug driver/115368] Wrong order of gcc include paths on musl systems 2024-06-06 7:00 [Bug driver/115368] New: Wrong order of gcc include paths on musl systems raj.khem at gmail dot com @ 2024-06-06 7:03 ` raj.khem at gmail dot com 2024-06-06 16:56 ` raj.khem at gmail dot com ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: raj.khem at gmail dot com @ 2024-06-06 7:03 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115368 --- Comment #1 from Khem Raj <raj.khem at gmail dot com> --- Created attachment 58366 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58366&action=edit potential fix This patch uses -idirafter instead of -iprefix when building for musl. This fixes the issue as the search paths get adjusted and sysroot is searched before gcc headers dir. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug driver/115368] Wrong order of gcc include paths on musl systems 2024-06-06 7:00 [Bug driver/115368] New: Wrong order of gcc include paths on musl systems raj.khem at gmail dot com 2024-06-06 7:03 ` [Bug driver/115368] " raj.khem at gmail dot com @ 2024-06-06 16:56 ` raj.khem at gmail dot com 2024-06-06 18:33 ` redi at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: raj.khem at gmail dot com @ 2024-06-06 16:56 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115368 Khem Raj <raj.khem at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #58366|0 |1 is obsolete| | --- Comment #2 from Khem Raj <raj.khem at gmail dot com> --- Created attachment 58370 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58370&action=edit potential fix v2 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug driver/115368] Wrong order of gcc include paths on musl systems 2024-06-06 7:00 [Bug driver/115368] New: Wrong order of gcc include paths on musl systems raj.khem at gmail dot com 2024-06-06 7:03 ` [Bug driver/115368] " raj.khem at gmail dot com 2024-06-06 16:56 ` raj.khem at gmail dot com @ 2024-06-06 18:33 ` redi at gcc dot gnu.org 2024-06-06 18:40 ` pinskia at gcc dot gnu.org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: redi at gcc dot gnu.org @ 2024-06-06 18:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115368 --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Please send patch to the gcc-patches mailing list rather than attaching them here. https://gcc.gnu.org/contribute.html#patches ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug driver/115368] Wrong order of gcc include paths on musl systems 2024-06-06 7:00 [Bug driver/115368] New: Wrong order of gcc include paths on musl systems raj.khem at gmail dot com ` (2 preceding siblings ...) 2024-06-06 18:33 ` redi at gcc dot gnu.org @ 2024-06-06 18:40 ` pinskia at gcc dot gnu.org 2024-06-06 18:42 ` pinskia at gcc dot gnu.org 2024-06-06 18:47 ` pinskia at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-06-06 18:40 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115368 --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Note this patch does not work as OPTION_MUSL is not defined for all targets. e.g. *-*-darwin and *-*-elf* targets do not define it. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug driver/115368] Wrong order of gcc include paths on musl systems 2024-06-06 7:00 [Bug driver/115368] New: Wrong order of gcc include paths on musl systems raj.khem at gmail dot com ` (3 preceding siblings ...) 2024-06-06 18:40 ` pinskia at gcc dot gnu.org @ 2024-06-06 18:42 ` pinskia at gcc dot gnu.org 2024-06-06 18:47 ` pinskia at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-06-06 18:42 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115368 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2024-06-06 Ever confirmed|0 |1 --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Also how come glibc targets get it correct: [apinski@xeond2 gcc]$ ~/upstream-gcc-match/bin/gcc -E -Wp,-v - ignoring nonexistent directory "/home/apinski/upstream-gcc-match/lib/gcc/x86_64-pc-linux-gnu/15.0.0/../../../../x86_64-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /home/apinski/upstream-gcc-match/lib/gcc/x86_64-pc-linux-gnu/15.0.0/include /usr/local/include /home/apinski/upstream-gcc-match/include /home/apinski/upstream-gcc-match/lib/gcc/x86_64-pc-linux-gnu/15.0.0/include-fixed /usr/include ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug driver/115368] Wrong order of gcc include paths on musl systems 2024-06-06 7:00 [Bug driver/115368] New: Wrong order of gcc include paths on musl systems raj.khem at gmail dot com ` (4 preceding siblings ...) 2024-06-06 18:42 ` pinskia at gcc dot gnu.org @ 2024-06-06 18:47 ` pinskia at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-06-06 18:47 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115368 --- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- > musl does not depend/use gcc's private headers Which is wrong and broken. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2024-06-06 18:47 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2024-06-06 7:00 [Bug driver/115368] New: Wrong order of gcc include paths on musl systems raj.khem at gmail dot com 2024-06-06 7:03 ` [Bug driver/115368] " raj.khem at gmail dot com 2024-06-06 16:56 ` raj.khem at gmail dot com 2024-06-06 18:33 ` redi at gcc dot gnu.org 2024-06-06 18:40 ` pinskia at gcc dot gnu.org 2024-06-06 18:42 ` pinskia at gcc dot gnu.org 2024-06-06 18:47 ` pinskia at gcc dot gnu.org
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