diff options
Diffstat (limited to 'mdk-stage1/dietlibc/x86_64/__longjmp.S')
| -rw-r--r-- | mdk-stage1/dietlibc/x86_64/__longjmp.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/x86_64/__longjmp.S b/mdk-stage1/dietlibc/x86_64/__longjmp.S new file mode 100644 index 000000000..43ec0539f --- /dev/null +++ b/mdk-stage1/dietlibc/x86_64/__longjmp.S @@ -0,0 +1,26 @@ +#include <setjmp.h> +#include "dietwarning.h" + +.text +.global __longjmp +.type __longjmp,@function +__longjmp: + mov $1,%eax + /* Restore the return address now. */ + movq (JB_PC*8)(%rdi),%rdx + /* Restore registers. */ + movq (JB_RBX*8)(%rdi),%rbx + movq (JB_RBP*8)(%rdi),%rbp + movq (JB_R12*8)(%rdi),%r12 + movq (JB_R13*8)(%rdi),%r13 + movq (JB_R14*8)(%rdi),%r14 + movq (JB_R15*8)(%rdi),%r15 + movq (JB_RSP*8)(%rdi),%rsp + /* never return 0 */ + test %esi,%esi + cmovne %esi,%eax + /* Jump to saved PC. */ + jmp *%rdx +.size __longjmp,.-__longjmp; + +link_warning("__longjmp","longjmp() not yet tested") |