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| author | Eugene Syromyatnikov <evgsyr@gmail.com> | 2023-04-30 15:53:58 +0200 |
|---|---|---|
| committer | Eugene Syromyatnikov <evgsyr@gmail.com> | 2023-04-30 16:41:13 +0200 |
| commit | 69a2a407b998a629e13e309eab3fb4364c0284fd (patch) | |
| tree | ece298545101134543b4c4e3bc7235d8b07ed413 /src/xlat/madvise_hppa_generic_cmds.in | |
| parent | 471f3593bf491e9296b9b889a15ba636460850c2 (diff) | |
| download | strace-esyr/hppa-madvise.tar.gz | |
mem: handle hppa MADV_* UAPI breakageesyr/hppa-madvise
Linux commit v6.2-rc1~39^2~7 has broken UAPI on PA-RISC by changing
the values of some MADV_* constants; that forces some special handling
for them, since we cannot have any assumptions about the version
of the kernel headers and/or kernel both strace and tracees are built
and/or being run on.
* src/mem.c: Include "xlat/madvise_hppa_generic_cmds.h".
[HPPA]: Include "xlat/madvise_hppa_old_cmds.h".
(SYS_FUNC(madvise)) <advice>: New local variable, set to tcp->u_arg[2].
[HPPA] (SYS_FUNC(madvise)): Check madvise_hppa_old_cmds for the advice
value and print it appropriately if it is there; then check
madvise_hppa_generic_cmds and print it appropriately if it is there;
then fallback to printing advice as madvise_cmds xval.
[!HPPA] (SYS_FUNC(madvise)): Print advice as madvise_cmds
and madvise_hppa_generic_cmds xval.
* src/xlat/madvise_cmds.in: Add sorted; remove "Generated ..." comment;
move hppa-specific values to madvise_hppa_old_cmds.in and their generic
counterparts to madvise_hppa_generic_cmds.in.
* src/xlat/madvise_hppa_generic_cmds.in: New file.
* src/xlat/madvise_hppa_old_cmds.in: Likewise.
* tests/.gitignore: Add madvise-Xabbrev, madvise-Xraw,
and madvise-Xverbose.
* tests/pure_executables.list: Likewise.
* tests/gen_tests.in (advise-Xabbrev, madvise-Xraw, madvise-Xverbos):
New tests.
* tests/madvise.c: Add checks for the advice argument decoding.
* tests/madvise-Xabbrev.c: New file.
* tests/madvise-Xraw.c: Likewise.
* tests/madvise-Xverbose.c: Likewise.
* NEWS: Mention it.
Reported-by: Matoro Mahri <matoro@users.noreply.github.com>
Closes: https://github.com/strace/strace/issues/241
Diffstat (limited to 'src/xlat/madvise_hppa_generic_cmds.in')
| -rw-r--r-- | src/xlat/madvise_hppa_generic_cmds.in | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/xlat/madvise_hppa_generic_cmds.in b/src/xlat/madvise_hppa_generic_cmds.in new file mode 100644 index 000000000..9740cab9b --- /dev/null +++ b/src/xlat/madvise_hppa_generic_cmds.in @@ -0,0 +1,16 @@ +#unconditional +#nocheckval +/* + * These values are used on hppa since v6.2-rc1~39^2~7 + * and on other architectures since their introduction; + * see madvise_hppa_old_cmds for the old values. + */ +MADV_MERGEABLE 12 +MADV_UNMERGEABLE 13 +MADV_HUGEPAGE 14 +MADV_NOHUGEPAGE 15 +MADV_DONTDUMP 16 +MADV_DODUMP 17 +MADV_WIPEONFORK 18 +MADV_KEEPONFORK 19 +MADV_COLLAPSE 25 |