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authorRich Felker <dalias@aerifal.cx>2015-09-17 07:28:44 +0000
committerRich Felker <dalias@aerifal.cx>2015-09-17 07:28:44 +0000
commit12b0b7d8eab5ec428b779d83bd3c6edad2f31993 (patch)
tree10ec9dfb820f6b788633a609e4ce93ecafc97292 /arch
parentc16182680c9ac8ad65f8ff38f6ae170feb0d33c7 (diff)
downloadmusl-12b0b7d8eab5ec428b779d83bd3c6edad2f31993.tar.gz
new dlstart stage-2 chaining for x86_64 and x32
Diffstat (limited to 'arch')
-rw-r--r--arch/x32/reloc.h5
-rw-r--r--arch/x86_64/reloc.h5
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/x32/reloc.h b/arch/x32/reloc.h
index 574f44a7..dc039adf 100644
--- a/arch/x32/reloc.h
+++ b/arch/x32/reloc.h
@@ -24,3 +24,8 @@
#define CRTJMP(pc,sp) __asm__ __volatile__( \
"mov %1,%%esp ; jmp *%0" : : "r"((uint64_t)(uintptr_t)pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+ ".hidden " #sym "\n" \
+ " lea " #sym "(%%rip),%0\n" \
+ : "=r"(*fp) : : "memory" )
diff --git a/arch/x86_64/reloc.h b/arch/x86_64/reloc.h
index 84c075c3..fac0c0ae 100644
--- a/arch/x86_64/reloc.h
+++ b/arch/x86_64/reloc.h
@@ -13,3 +13,8 @@
#define CRTJMP(pc,sp) __asm__ __volatile__( \
"mov %1,%%rsp ; jmp *%0" : : "r"(pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+ ".hidden " #sym "\n" \
+ " lea " #sym "(%%rip),%0\n" \
+ : "=r"(*fp) : : "memory" )