Displaying 2 results from an estimated 2 matches for "klibcstackflg".
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klibcstackflgs
2020 Jul 25
0
[klibc:master] Kbuild: Add a per-architecture option to disable exectable stacks
...) \
-D__KLIBC_MINOR__=$(KLIBCMINOR) \
-D_BITSIZE=$(KLIBCBITSIZE)
KLIBCCPPFLAGS += $(KLIBCDEFS)
KLIBCCFLAGS += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \
- $(KLIBCOPTFLAGS) $(KLIBCWARNFLAGS)
+ $(KLIBCOPTFLAGS) $(KLIBCSTACKFLGS) $(KLIBCWARNFLAGS)
KLIBCAFLAGS += -D__ASSEMBLY__ $(KLIBCCFLAGS)
KLIBCSTRIPFLAGS += --strip-all -R .comment -R .note
diff --git a/usr/klibc/Kbuild b/usr/klibc/Kbuild
index bec9cdb4..c6338851 100644
--- a/usr/klibc/Kbuild
+++ b/usr/klibc/Kbuild
@@ -185,6 +185,7 @@ quiet_cmd_interp = BUILD...
2020 Apr 29
2
[PATCH klibc 1/3] Revert " Kbuild: Tell gas we don't want executable stacks"
This reverts commit 9d8d648e604026b32cad00a84ed6c29cbd157641, which
broke signal handing on some architectures.
On m68k and parisc, signal return depends on a trampoline that the
kernel writes on the stack. On alpha, s390, and sparc (32-bit), we
can avoid this by providing our own function as sa_restorer, but we
currently don't.
Signed-off-by: Ben Hutchings <ben at decadent.org.uk>