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| author | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
|---|---|---|
| committer | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
| commit | 4abab5ad6c8465a7528ccdd5f49367da05f78bbd (patch) | |
| tree | ebf009bf1376a5a223a915bc27cbbd791a1316bc /src/ldso/aarch64 | |
Initial version
Diffstat (limited to 'src/ldso/aarch64')
| -rw-r--r-- | src/ldso/aarch64/dlsym.s | 6 | ||||
| -rw-r--r-- | src/ldso/aarch64/tlsdesc.s | 31 |
2 files changed, 37 insertions, 0 deletions
diff --git a/src/ldso/aarch64/dlsym.s b/src/ldso/aarch64/dlsym.s new file mode 100644 index 0000000..abaae4d --- /dev/null +++ b/src/ldso/aarch64/dlsym.s @@ -0,0 +1,6 @@ +.global dlsym +.hidden __dlsym +.type dlsym,%function +dlsym: + mov x2,x30 + b __dlsym diff --git a/src/ldso/aarch64/tlsdesc.s b/src/ldso/aarch64/tlsdesc.s new file mode 100644 index 0000000..c6c685b --- /dev/null +++ b/src/ldso/aarch64/tlsdesc.s @@ -0,0 +1,31 @@ +// size_t __tlsdesc_static(size_t *a) +// { +// return a[1]; +// } +.global __tlsdesc_static +.hidden __tlsdesc_static +.type __tlsdesc_static,@function +__tlsdesc_static: + ldr x0,[x0,#8] + ret + +// size_t __tlsdesc_dynamic(size_t *a) +// { +// struct {size_t modidx,off;} *p = (void*)a[1]; +// size_t *dtv = *(size_t**)(tp - 8); +// return dtv[p->modidx] + p->off - tp; +// } +.global __tlsdesc_dynamic +.hidden __tlsdesc_dynamic +.type __tlsdesc_dynamic,@function +__tlsdesc_dynamic: + stp x1,x2,[sp,#-16]! + mrs x1,tpidr_el0 // tp + ldr x0,[x0,#8] // p + ldp x0,x2,[x0] // p->modidx, p->off + sub x2,x2,x1 // p->off - tp + ldr x1,[x1,#-8] // dtv + ldr x1,[x1,x0,lsl #3] // dtv[p->modidx] + add x0,x1,x2 // dtv[p->modidx] + p->off - tp + ldp x1,x2,[sp],#16 + ret |