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authorJoseph Myers <joseph@codesourcery.com>2018-11-13 01:55:15 +0000
committerJoseph Myers <joseph@codesourcery.com>2018-11-13 01:55:15 +0000
commit0c096dcf14df1ed6ce869015ca623d8fabf1f0ef (patch)
treea9d0c83761187b0a87a4bcb9296ffce3fa1b2316 /sysdeps/mips
parent9c4b457e1b47369a40afd5e5e220f5d657667c0a (diff)
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Fix mips build with GCC 9.
This patch fixes the build for MIPS (o32) with GCC 9 by stopping MIPS
__longjmp from using strong_alias, instead defining the alias
manually, so that the intended effect of not copying the nomips16
attribute is achieved, as explained in the included comment.

Tested with build-many-glibcs.py compilers build for mips64-linux-gnu
(which includes glibc builds for all three ABIs).

	* sysdeps/mips/__longjmp.c (__longjmp): Define alias manually with
	alias attribute, not with strong_alias.
Diffstat (limited to 'sysdeps/mips')
-rw-r--r--sysdeps/mips/__longjmp.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sysdeps/mips/__longjmp.c b/sysdeps/mips/__longjmp.c
index 56bb73f1bc..7c95bc4030 100644
--- a/sysdeps/mips/__longjmp.c
+++ b/sysdeps/mips/__longjmp.c
@@ -81,4 +81,9 @@ ____longjmp (__jmp_buf env_arg, int val_arg)
   for (;;);
 }
 
-strong_alias (____longjmp, __longjmp);
+/* Not using strong_alias because the nomips16 attribute cannot be
+   copied from ____longjmp to __longjmp, because of the
+   architecture-independent declaration of __longjmp without the
+   attribute and compiler errors for such attributes not being the
+   same on all declarations.  */
+extern __typeof (____longjmp) __longjmp __attribute__ ((alias ("____longjmp")));