feather/contrib/guix/patches/glibc-2.31-riscv64-fix-incorrect-jal-with-HIDDEN_JUMPTARGET.patch

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2024-11-03 00:12:52 +00:00
From: https://sourceware.org/git/?p=glibc.git;a=commit;h=68389203832ab39dd0dbaabbc4059e7fff51c29b
Context: https://sourceware.org/bugzilla/show_bug.cgi?id=28509
Resolves a build failure with glibc 2.31 + binutils >=2.40.
Patch can be removed if we update glibc to >= 2.35.
diff --git a/sysdeps/riscv/setjmp.S b/sysdeps/riscv/setjmp.S
index 2cf31deeb4..3e61597b7a 100644
--- a/sysdeps/riscv/setjmp.S
+++ b/sysdeps/riscv/setjmp.S
@@ -21,7 +21,7 @@
ENTRY (_setjmp)
li a1, 0
- j __sigsetjmp
+ j HIDDEN_JUMPTARGET (__sigsetjmp)
END (_setjmp)
ENTRY (setjmp)
li a1, 1
diff --git a/sysdeps/unix/sysv/linux/riscv/setcontext.S b/sysdeps/unix/sysv/linux/riscv/setcontext.S
index fb9937517d..e7f1e6481b 100644
--- a/sysdeps/unix/sysv/linux/riscv/setcontext.S
+++ b/sysdeps/unix/sysv/linux/riscv/setcontext.S
@@ -95,6 +95,7 @@ LEAF (__setcontext)
99: j __syscall_error
END (__setcontext)
+libc_hidden_def (__setcontext)
weak_alias (__setcontext, setcontext)
LEAF (__start_context)
@@ -108,7 +109,7 @@ LEAF (__start_context)
/* Invoke subsequent context if present, else exit(0). */
mv a0, s2
beqz s2, 1f
- jal __setcontext
-1: j exit
+ jal HIDDEN_JUMPTARGET (__setcontext)
+1: j HIDDEN_JUMPTARGET (exit)
END (__start_context)