diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | sysdeps/aarch64/dl-tlsdesc.S | 70 |
2 files changed, 76 insertions, 0 deletions
@@ -6,6 +6,12 @@ 2017-06-21 Szabolcs Nagy <szabolcs.nagy@arm.com> + * sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_dynamic): Add cfi + annotation. + (_dl_tlsdesc_resolve_rela, _dl_tlsdesc_resolve_hold): Likewise. + +2017-06-21 Szabolcs Nagy <szabolcs.nagy@arm.com> + * sysdeps/aarch64/dl-machine.h (RTLD_START_1): Change _dl_argv to the hidden __GI__dl_argv symbol. diff --git a/sysdeps/aarch64/dl-tlsdesc.S b/sysdeps/aarch64/dl-tlsdesc.S index 94679a0..a70cfd5 100644 --- a/sysdeps/aarch64/dl-tlsdesc.S +++ b/sysdeps/aarch64/dl-tlsdesc.S @@ -176,6 +176,8 @@ _dl_tlsdesc_dynamic: # define NSAVEXREGPAIRS 2 stp x29, x30, [sp,#-(32+16*NSAVEXREGPAIRS)]! cfi_adjust_cfa_offset (32+16*NSAVEXREGPAIRS) + cfi_rel_offset (x29, 0) + cfi_rel_offset (x30, 8) mov x29, sp DELOUSE (0) @@ -184,6 +186,10 @@ _dl_tlsdesc_dynamic: stp x1, x2, [sp, #32+16*0] stp x3, x4, [sp, #32+16*1] + cfi_rel_offset (x1, 32) + cfi_rel_offset (x2, 32+8) + cfi_rel_offset (x3, 32+16) + cfi_rel_offset (x4, 32+24) mrs x4, tpidr_el0 /* The ldar here happens after the load from [x0] at the call site @@ -213,6 +219,8 @@ _dl_tlsdesc_dynamic: ldp x29, x30, [sp], #(32+16*NSAVEXREGPAIRS) cfi_adjust_cfa_offset (-32-16*NSAVEXREGPAIRS) + cfi_restore (x29) + cfi_restore (x30) # undef NSAVEXREGPAIRS RET 2: @@ -230,6 +238,20 @@ _dl_tlsdesc_dynamic: stp x13, x14, [sp, #16*4] stp x15, x16, [sp, #16*5] stp x17, x18, [sp, #16*6] + cfi_rel_offset (x5, 0) + cfi_rel_offset (x6, 8) + cfi_rel_offset (x7, 16) + cfi_rel_offset (x8, 16+8) + cfi_rel_offset (x9, 16*2) + cfi_rel_offset (x10, 16*2+8) + cfi_rel_offset (x11, 16*3) + cfi_rel_offset (x12, 16*3+8) + cfi_rel_offset (x13, 16*4) + cfi_rel_offset (x14, 16*4+8) + cfi_rel_offset (x15, 16*5) + cfi_rel_offset (x16, 16*5+8) + cfi_rel_offset (x17, 16*6) + cfi_rel_offset (x18, 16*6+8) SAVE_Q_REGISTERS @@ -268,8 +290,14 @@ _dl_tlsdesc_dynamic: .align 2 _dl_tlsdesc_resolve_rela: #define NSAVEXREGPAIRS 9 + /* The tlsdesc PLT entry pushes x2 and x3 to the stack. */ + cfi_adjust_cfa_offset (16) + cfi_rel_offset (x2, 0) + cfi_rel_offset (x3, 8) stp x29, x30, [sp, #-(32+16*NSAVEXREGPAIRS)]! cfi_adjust_cfa_offset (32+16*NSAVEXREGPAIRS) + cfi_rel_offset (x29, 0) + cfi_rel_offset (x30, 8) mov x29, sp stp x1, x4, [sp, #32+16*0] stp x5, x6, [sp, #32+16*1] @@ -280,6 +308,23 @@ _dl_tlsdesc_resolve_rela: stp x15, x16, [sp, #32+16*6] stp x17, x18, [sp, #32+16*7] str x0, [sp, #32+16*8] + cfi_rel_offset (x1, 32) + cfi_rel_offset (x4, 32+8) + cfi_rel_offset (x5, 32+16) + cfi_rel_offset (x6, 32+16+8) + cfi_rel_offset (x7, 32+16*2) + cfi_rel_offset (x8, 32+16*2+8) + cfi_rel_offset (x9, 32+16*3) + cfi_rel_offset (x10, 32+16*3+8) + cfi_rel_offset (x11, 32+16*4) + cfi_rel_offset (x12, 32+16*4+8) + cfi_rel_offset (x13, 32+16*5) + cfi_rel_offset (x14, 32+16*5+8) + cfi_rel_offset (x15, 32+16*6) + cfi_rel_offset (x16, 32+16*6+8) + cfi_rel_offset (x17, 32+16*7) + cfi_rel_offset (x18, 32+16*7+8) + cfi_rel_offset (x0, 32+16*8) SAVE_Q_REGISTERS @@ -304,6 +349,8 @@ _dl_tlsdesc_resolve_rela: ldp x17, x18, [sp, #32+16*7] ldp x29, x30, [sp], #(32+16*NSAVEXREGPAIRS) cfi_adjust_cfa_offset (-32-16*NSAVEXREGPAIRS) + cfi_restore (x29) + cfi_restore (x30) ldp x2, x3, [sp], #16 cfi_adjust_cfa_offset (-16) RET @@ -332,6 +379,8 @@ _dl_tlsdesc_resolve_hold: 1: stp x29, x30, [sp, #-(32+16*NSAVEXREGPAIRS)]! cfi_adjust_cfa_offset (32+16*NSAVEXREGPAIRS) + cfi_rel_offset (x29, 0) + cfi_rel_offset (x30, 8) mov x29, sp stp x1, x2, [sp, #32+16*0] stp x3, x4, [sp, #32+16*1] @@ -343,6 +392,25 @@ _dl_tlsdesc_resolve_hold: stp x15, x16, [sp, #32+16*7] stp x17, x18, [sp, #32+16*8] str x0, [sp, #32+16*9] + cfi_rel_offset (x1, 32) + cfi_rel_offset (x2, 32+8) + cfi_rel_offset (x3, 32+16) + cfi_rel_offset (x4, 32+16+8) + cfi_rel_offset (x5, 32+16*2) + cfi_rel_offset (x6, 32+16*2+8) + cfi_rel_offset (x7, 32+16*3) + cfi_rel_offset (x8, 32+16*3+8) + cfi_rel_offset (x9, 32+16*4) + cfi_rel_offset (x10, 32+16*4+8) + cfi_rel_offset (x11, 32+16*5) + cfi_rel_offset (x12, 32+16*5+8) + cfi_rel_offset (x13, 32+16*6) + cfi_rel_offset (x14, 32+16*6+8) + cfi_rel_offset (x15, 32+16*7) + cfi_rel_offset (x16, 32+16*7+8) + cfi_rel_offset (x17, 32+16*8) + cfi_rel_offset (x18, 32+16*8+8) + cfi_rel_offset (x0, 32+16*9) SAVE_Q_REGISTERS @@ -367,6 +435,8 @@ _dl_tlsdesc_resolve_hold: ldp x17, x18, [sp, #32+16*8] ldp x29, x30, [sp], #(32+16*NSAVEXREGPAIRS) cfi_adjust_cfa_offset (-32-16*NSAVEXREGPAIRS) + cfi_restore (x29) + cfi_restore (x30) RET cfi_endproc .size _dl_tlsdesc_resolve_hold, .-_dl_tlsdesc_resolve_hold |