From 90dad97fc07f049383903a166631e2c257f9b8c1 Mon Sep 17 00:00:00 2001 From: Kacper Date: Tue, 16 Dec 2025 17:02:05 +0100 Subject: Add support for TLS in the libc --- lib/libc/internal/arch/x86_64/setjmp.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 lib/libc/internal/arch/x86_64/setjmp.c (limited to 'lib/libc/internal/arch/x86_64/setjmp.c') diff --git a/lib/libc/internal/arch/x86_64/setjmp.c b/lib/libc/internal/arch/x86_64/setjmp.c new file mode 100644 index 00000000..ea205e16 --- /dev/null +++ b/lib/libc/internal/arch/x86_64/setjmp.c @@ -0,0 +1,19 @@ +#include "bits/setjmp.h" // for jmp_buf + +#include // for setjmp + +__attribute__((naked, returns_twice)) int setjmp(jmp_buf env) +{ + __asm__ __volatile__("mov %rbx,(%rdi)\n" + "mov %rbp,8(%rdi)\n" + "mov %r12,16(%rdi)\n" + "mov %r13,24(%rdi)\n" + "mov %r14,32(%rdi)\n" + "mov %r15,40(%rdi)\n" + "lea 8(%rsp),%rdx\n" + "mov %rdx,48(%rdi)\n" + "mov (%rsp),%rdx\n" + "mov %rdx,56(%rdi)\n" + "xor %eax,%eax\n" + "ret\n"); +} -- cgit v1.2.3