From cab2b1f9d71db31d6dc4ae9dcab6989182b7b533 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Tue, 22 Sep 2015 04:10:42 +0000 Subject: [PATCH] work around breakage in sh/fdpic __unmapself function the C implementation of __unmapself used for potentially-nommu sh assumed CRTJMP takes a function descriptor rather than a code address; however, the actual dynamic linker needs a code address, and so commit 7a9669e977e5f750cf72ccbd2614f8b72ce02c4c changed the definition of the macro in reloc.h. this commit puts the old macro back in a place where it only affects __unmapself. this is an ugly workaround and should be cleaned up at some point, but at least it's well isolated. --- arch/sh/src/__unmapself.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/sh/src/__unmapself.c b/arch/sh/src/__unmapself.c index 4df9e7bf..b804aeff 100644 --- a/arch/sh/src/__unmapself.c +++ b/arch/sh/src/__unmapself.c @@ -5,6 +5,11 @@ void __unmapself_sh_nommu(void *, size_t); #if !defined(__SH3__) && !defined(__SH4__) #define __unmapself __unmapself_sh_nommu +#include "dynlink.h" +#undef CRTJMP +#define CRTJMP(pc,sp) __asm__ __volatile__( \ + "mov.l @%0+,r0 ; mov.l @%0,r12 ; jmp @r0 ; mov %1,r15" \ + : : "r"(pc), "r"(sp) : "r0", "memory" ) #include "../../../src/thread/__unmapself.c" #undef __unmapself extern __attribute__((__visibility__("hidden"))) unsigned __sh_nommu; -- 2.40.0