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LoongArch: Add cfi instructions for _dl_tlsdesc_dynamic

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In _dl_tlsdesc_dynamic, there are three 'addi.d sp, sp, -size'
instructions to allocate stack size for Float/LSX/LASX registers.
Every 'addi.d sp, sp, -size' needs a cfi_adjust_cfa_offset because
of sp is used to compute CFA. But only one 'addi.d sp, sp, -size'
will be run according to HWCAP value. And all cfi_adjust_cfa_offset
will be executed in stack unwinding, it result in incorrect CFA.

Change _dl_tlsdesc_dynamic to _dl_tlsdesc_dynamic,
_dl_tlsdesc_dynamic_lsx and _dl_tlsdesc_dynamic_lasx.
Conflicting cfi instructions can be distributed to the three functions.
And cfi instructions can correspond to stack down instructions.
This commit is contained in:
mengqinggang 2024-07-05 10:40:33 +08:00 committed by caiyinyu
parent d5f1da2a8a
commit 5662433c38
5 changed files with 257 additions and 372 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
sysdeps/loongarch/dl-machine.h
View File

@ -223,6 +223,13 @@ elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[],
{
td->arg = _dl_make_tlsdesc_dynamic (sym_map,
sym->st_value + reloc->r_addend);
# ifndef __loongarch_soft_float
if (RTLD_SUPPORT_LASX)
td->entry = _dl_tlsdesc_dynamic_lasx;
else if (RTLD_SUPPORT_LSX)
td->entry = _dl_tlsdesc_dynamic_lsx;
else
# endif
td->entry = _dl_tlsdesc_dynamic;
}
else

225
sysdeps/loongarch/dl-tlsdesc-dynamic.h Normal file
View File

@ -0,0 +1,225 @@
/* Thread-local storage handling in the ELF dynamic linker.
LoongArch version.
Copyright (C) 2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#define FRAME_SIZE (-((-14 * SZREG) & ALMASK))
#define FRAME_SIZE_LSX (-((-32 * SZVREG) & ALMASK))
#define FRAME_SIZE_LASX (-((-32 * SZXREG) & ALMASK))
#define FRAME_SIZE_FLOAT (-((-24 * SZFREG) & ALMASK))
/* Handler for dynamic TLS symbols.
Prototype:
_dl_tlsdesc_dynamic (tlsdesc *) ;
The second word of the descriptor points to a
tlsdesc_dynamic_arg structure.
Returns the offset between the thread pointer and the
object referenced by the argument.
ptrdiff_t
_dl_tlsdesc_dynamic (struct tlsdesc *tdp)
{
struct tlsdesc_dynamic_arg *td = tdp->arg;
dtv_t *dtv = *(dtv_t **)((char *)__thread_pointer - SIZE_OF_TCB);
if (__glibc_likely (td->gen_count <= dtv[0].counter
&& (dtv[td->tlsinfo.ti_module].pointer.val
!= TLS_DTV_UNALLOCATED),
1))
return dtv[td->tlsinfo.ti_module].pointer.val
+ td->tlsinfo.ti_offset
- __thread_pointer;
return ___tls_get_addr (&td->tlsinfo) - __thread_pointer;
} */
.hidden _dl_tlsdesc_dynamic
.global _dl_tlsdesc_dynamic
.type _dl_tlsdesc_dynamic,%function
cfi_startproc
.align 2
_dl_tlsdesc_dynamic:
/* Save just enough registers to support fast path, if we fall
into slow path we will save additional registers. */
ADDI sp, sp, -32
cfi_adjust_cfa_offset (32)
REG_S t0, sp, 0
REG_S t1, sp, 8
REG_S t2, sp, 16
cfi_rel_offset (12, 0)
cfi_rel_offset (13, 8)
cfi_rel_offset (14, 16)
/* Runtime Storage Layout of Thread-Local Storage
TP point to the start of TLS block.
dtv
Low address TCB ----------------> dtv0(counter)
TP --> static_block0 <----- dtv1
static_block1 <----- dtv2
static_block2 <----- dtv3
dynamic_block0 <----- dtv4
Hign address dynamic_block1 <----- dtv5 */
REG_L t0, tp, -SIZE_OF_TCB /* t0 = dtv */
REG_L a0, a0, TLSDESC_ARG /* a0(td) = tdp->arg */
REG_L t1, a0, TLSDESC_GEN_COUNT /* t1 = td->gen_count */
REG_L t2, t0, DTV_COUNTER /* t2 = dtv[0].counter */
/* If dtv[0].counter < td->gen_count, goto slow path. */
bltu t2, t1, .Lslow
REG_L t1, a0, TLSDESC_MODID /* t1 = td->tlsinfo.ti_module */
/* t1 = t1 * sizeof(dtv_t) = t1 * (2 * sizeof(void*)) */
slli.d t1, t1, 4
add.d t1, t1, t0 /* t1 = dtv[td->tlsinfo.ti_module] */
REG_L t1, t1, 0 /* t1 = dtv[td->tlsinfo.ti_module].pointer.val */
li.d t2, TLS_DTV_UNALLOCATED
/* If dtv[td->tlsinfo.ti_module].pointer.val is TLS_DTV_UNALLOCATED,
goto slow path. */
beq t1, t2, .Lslow
cfi_remember_state
REG_L t2, a0, TLSDESC_MODOFF /* t2 = td->tlsinfo.ti_offset */
/* dtv[td->tlsinfo.ti_module].pointer.val + td->tlsinfo.ti_offset */
add.d a0, t1, t2
.Lret:
sub.d a0, a0, tp
REG_L t0, sp, 0
REG_L t1, sp, 8
REG_L t2, sp, 16
ADDI sp, sp, 32
cfi_adjust_cfa_offset (-32)
RET
.Lslow:
/* This is the slow path. We need to call __tls_get_addr() which
means we need to save and restore all the register that the
callee will trash. */
/* Save the remaining registers that we must treat as caller save. */
cfi_restore_state
ADDI sp, sp, -FRAME_SIZE
cfi_adjust_cfa_offset (FRAME_SIZE)
REG_S ra, sp, 0 * SZREG
REG_S a1, sp, 1 * SZREG
REG_S a2, sp, 2 * SZREG
REG_S a3, sp, 3 * SZREG
REG_S a4, sp, 4 * SZREG
REG_S a5, sp, 5 * SZREG
REG_S a6, sp, 6 * SZREG
REG_S a7, sp, 7 * SZREG
REG_S t3, sp, 8 * SZREG
REG_S t4, sp, 9 * SZREG
REG_S t5, sp, 10 * SZREG
REG_S t6, sp, 11 * SZREG
REG_S t7, sp, 12 * SZREG
REG_S t8, sp, 13 * SZREG
cfi_rel_offset (1, 0 * SZREG)
cfi_rel_offset (5, 1 * SZREG)
cfi_rel_offset (6, 2 * SZREG)
cfi_rel_offset (7, 3 * SZREG)
cfi_rel_offset (8, 4 * SZREG)
cfi_rel_offset (9, 5 * SZREG)
cfi_rel_offset (10, 6 * SZREG)
cfi_rel_offset (11, 7 * SZREG)
cfi_rel_offset (15, 8 * SZREG)
cfi_rel_offset (16, 9 * SZREG)
cfi_rel_offset (17, 10 * SZREG)
cfi_rel_offset (18, 11 * SZREG)
cfi_rel_offset (19, 12 * SZREG)
cfi_rel_offset (20, 13 * SZREG)
#ifndef __loongarch_soft_float
/* Save fcsr0 register.
Only one physical fcsr0 register, fcsr1-fcsr3 are aliases
of some fields in fcsr0. */
movfcsr2gr t0, fcsr0
st.w t0, sp, FRAME_SIZE + 24 /* Use the spare slot above t2. */
#ifdef USE_LASX
#define V_REG_S xvst
#define V_REG_L xvld
#define V_SPACE FRAME_SIZE_LASX
#define V_REG(n) $xr##n
#define V_REGS 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16, \
17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
#define V_REGSZ SZXREG
#elif defined USE_LSX
#define V_REG_S vst
#define V_REG_L vld
#define V_SPACE FRAME_SIZE_LSX
#define V_REG(n) $vr##n
#define V_REGS 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16, \
17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
#define V_REGSZ SZVREG
#else
#define V_REG_S fst.d
#define V_REG_L fld.d
#define V_SPACE FRAME_SIZE_FLOAT
#define V_REG(n) $f##n
#define V_REGS 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23
#define V_REGSZ SZFREG
#endif
ADDI sp, sp, -V_SPACE
cfi_adjust_cfa_offset (V_SPACE)
.irp i,V_REGS
V_REG_S V_REG(\i), sp, \i * V_REGSZ
.endr
#endif /* #ifndef __loongarch_soft_float */
bl HIDDEN_JUMPTARGET(__tls_get_addr)
ADDI a0, a0, -TLS_DTV_OFFSET
#ifndef __loongarch_soft_float
.irp i,V_REGS
V_REG_L V_REG(\i), sp, \i * V_REGSZ
.endr
ADDI sp, sp, V_SPACE
cfi_adjust_cfa_offset (-V_SPACE)
/* Restore fcsr0 register. */
ld.w t0, sp, FRAME_SIZE + 24
movgr2fcsr fcsr0, t0
#endif /* #ifndef __loongarch_soft_float */
REG_L ra, sp, 0 * SZREG
REG_L a1, sp, 1 * SZREG
REG_L a2, sp, 2 * SZREG
REG_L a3, sp, 3 * SZREG
REG_L a4, sp, 4 * SZREG
REG_L a5, sp, 5 * SZREG
REG_L a6, sp, 6 * SZREG
REG_L a7, sp, 7 * SZREG
REG_L t3, sp, 8 * SZREG
REG_L t4, sp, 9 * SZREG
REG_L t5, sp, 10 * SZREG
REG_L t6, sp, 11 * SZREG
REG_L t7, sp, 12 * SZREG
REG_L t8, sp, 13 * SZREG
ADDI sp, sp, FRAME_SIZE
cfi_adjust_cfa_offset (-FRAME_SIZE)
b .Lret
cfi_endproc
.size _dl_tlsdesc_dynamic, .-_dl_tlsdesc_dynamic
.hidden HIDDEN_JUMPTARGET(__tls_get_addr)

384
sysdeps/loongarch/dl-tlsdesc.S
View File

@ -59,376 +59,34 @@ _dl_tlsdesc_undefweak:
cfi_endproc
.size _dl_tlsdesc_undefweak, .-_dl_tlsdesc_undefweak
#ifdef SHARED
#define FRAME_SIZE (-((-14 * SZREG) & ALMASK))
#define FRAME_SIZE_LSX (-((-32 * SZVREG) & ALMASK))
#define FRAME_SIZE_LASX (-((-32 * SZXREG) & ALMASK))
#define FRAME_SIZE_FLOAT (-((-24 * SZFREG) & ALMASK))
/* Handler for dynamic TLS symbols.
Prototype:
_dl_tlsdesc_dynamic (tlsdesc *) ;
The second word of the descriptor points to a
tlsdesc_dynamic_arg structure.
Returns the offset between the thread pointer and the
object referenced by the argument.
ptrdiff_t
_dl_tlsdesc_dynamic (struct tlsdesc *tdp)
{
struct tlsdesc_dynamic_arg *td = tdp->arg;
dtv_t *dtv = *(dtv_t **)((char *)__thread_pointer - SIZE_OF_TCB);
if (__glibc_likely (td->gen_count <= dtv[0].counter
&& (dtv[td->tlsinfo.ti_module].pointer.val
!= TLS_DTV_UNALLOCATED),
1))
return dtv[td->tlsinfo.ti_module].pointer.val
+ td->tlsinfo.ti_offset
- __thread_pointer;
return ___tls_get_addr (&td->tlsinfo) - __thread_pointer;
} */
.hidden _dl_tlsdesc_dynamic
.global _dl_tlsdesc_dynamic
.type _dl_tlsdesc_dynamic,%function
cfi_startproc
.align 2
_dl_tlsdesc_dynamic:
/* Save just enough registers to support fast path, if we fall
into slow path we will save additional registers. */
ADDI sp, sp, -32
REG_S t0, sp, 0
REG_S t1, sp, 8
REG_S t2, sp, 16
/* Runtime Storage Layout of Thread-Local Storage
TP point to the start of TLS block.
dtv
Low address TCB ----------------> dtv0(counter)
TP --> static_block0 <----- dtv1
static_block1 <----- dtv2
static_block2 <----- dtv3
dynamic_block0 <----- dtv4
Hign address dynamic_block1 <----- dtv5 */
REG_L t0, tp, -SIZE_OF_TCB /* t0 = dtv */
REG_L a0, a0, TLSDESC_ARG /* a0(td) = tdp->arg */
REG_L t1, a0, TLSDESC_GEN_COUNT /* t1 = td->gen_count */
REG_L t2, t0, DTV_COUNTER /* t2 = dtv[0].counter */
/* If dtv[0].counter < td->gen_count, goto slow path. */
bltu t2, t1, .Lslow
REG_L t1, a0, TLSDESC_MODID /* t1 = td->tlsinfo.ti_module */
/* t1 = t1 * sizeof(dtv_t) = t1 * (2 * sizeof(void*)) */
slli.d t1, t1, 4
add.d t1, t1, t0 /* t1 = dtv[td->tlsinfo.ti_module] */
REG_L t1, t1, 0 /* t1 = dtv[td->tlsinfo.ti_module].pointer.val */
li.d t2, TLS_DTV_UNALLOCATED
/* If dtv[td->tlsinfo.ti_module].pointer.val is TLS_DTV_UNALLOCATED,
goto slow path. */
beq t1, t2, .Lslow
REG_L t2, a0, TLSDESC_MODOFF /* t2 = td->tlsinfo.ti_offset */
/* dtv[td->tlsinfo.ti_module].pointer.val + td->tlsinfo.ti_offset */
add.d a0, t1, t2
.Lret:
sub.d a0, a0, tp
REG_L t0, sp, 0
REG_L t1, sp, 8
REG_L t2, sp, 16
ADDI sp, sp, 32
RET
.Lslow:
/* This is the slow path. We need to call __tls_get_addr() which
means we need to save and restore all the register that the
callee will trash. */
/* Save the remaining registers that we must treat as caller save. */
ADDI sp, sp, -FRAME_SIZE
REG_S ra, sp, 0 * SZREG
REG_S a1, sp, 1 * SZREG
REG_S a2, sp, 2 * SZREG
REG_S a3, sp, 3 * SZREG
REG_S a4, sp, 4 * SZREG
REG_S a5, sp, 5 * SZREG
REG_S a6, sp, 6 * SZREG
REG_S a7, sp, 7 * SZREG
REG_S t3, sp, 8 * SZREG
REG_S t4, sp, 9 * SZREG
REG_S t5, sp, 10 * SZREG
REG_S t6, sp, 11 * SZREG
REG_S t7, sp, 12 * SZREG
REG_S t8, sp, 13 * SZREG
#ifndef __loongarch_soft_float
/* Save fcsr0 register.
Only one physical fcsr0 register, fcsr1-fcsr3 are aliases
of some fields in fcsr0. */
movfcsr2gr t0, fcsr0
st.w t0, sp, FRAME_SIZE + 24 /* Use the spare slot above t2 */
#define USE_LASX
#define _dl_tlsdesc_dynamic _dl_tlsdesc_dynamic_lasx
#define Lret Lret_lasx
#define Lslow Lslow_lasx
#include "dl-tlsdesc-dynamic.h"
#undef FRAME_SIZE
#undef USE_LASX
#undef _dl_tlsdesc_dynamic
#undef Lret
#undef Lslow
/* Whether support LASX. */
la.global t0, _rtld_global_ro
REG_L t0, t0, GLRO_DL_HWCAP_OFFSET
andi t1, t0, HWCAP_LOONGARCH_LASX
beqz t1, .Llsx
/* Save 256-bit vector registers.
FIXME: Without vector ABI, save all vector registers. */
ADDI sp, sp, -FRAME_SIZE_LASX
xvst xr0, sp, 0*SZXREG
xvst xr1, sp, 1*SZXREG
xvst xr2, sp, 2*SZXREG
xvst xr3, sp, 3*SZXREG
xvst xr4, sp, 4*SZXREG
xvst xr5, sp, 5*SZXREG
xvst xr6, sp, 6*SZXREG
xvst xr7, sp, 7*SZXREG
xvst xr8, sp, 8*SZXREG
xvst xr9, sp, 9*SZXREG
xvst xr10, sp, 10*SZXREG
xvst xr11, sp, 11*SZXREG
xvst xr12, sp, 12*SZXREG
xvst xr13, sp, 13*SZXREG
xvst xr14, sp, 14*SZXREG
xvst xr15, sp, 15*SZXREG
xvst xr16, sp, 16*SZXREG
xvst xr17, sp, 17*SZXREG
xvst xr18, sp, 18*SZXREG
xvst xr19, sp, 19*SZXREG
xvst xr20, sp, 20*SZXREG
xvst xr21, sp, 21*SZXREG
xvst xr22, sp, 22*SZXREG
xvst xr23, sp, 23*SZXREG
xvst xr24, sp, 24*SZXREG
xvst xr25, sp, 25*SZXREG
xvst xr26, sp, 26*SZXREG
xvst xr27, sp, 27*SZXREG
xvst xr28, sp, 28*SZXREG
xvst xr29, sp, 29*SZXREG
xvst xr30, sp, 30*SZXREG
xvst xr31, sp, 31*SZXREG
b .Ltga
.Llsx:
/* Whether support LSX. */
andi t1, t0, HWCAP_LOONGARCH_LSX
beqz t1, .Lfloat
/* Save 128-bit vector registers. */
ADDI sp, sp, -FRAME_SIZE_LSX
vst vr0, sp, 0*SZVREG
vst vr1, sp, 1*SZVREG
vst vr2, sp, 2*SZVREG
vst vr3, sp, 3*SZVREG
vst vr4, sp, 4*SZVREG
vst vr5, sp, 5*SZVREG
vst vr6, sp, 6*SZVREG
vst vr7, sp, 7*SZVREG
vst vr8, sp, 8*SZVREG
vst vr9, sp, 9*SZVREG
vst vr10, sp, 10*SZVREG
vst vr11, sp, 11*SZVREG
vst vr12, sp, 12*SZVREG
vst vr13, sp, 13*SZVREG
vst vr14, sp, 14*SZVREG
vst vr15, sp, 15*SZVREG
vst vr16, sp, 16*SZVREG
vst vr17, sp, 17*SZVREG
vst vr18, sp, 18*SZVREG
vst vr19, sp, 19*SZVREG
vst vr20, sp, 20*SZVREG
vst vr21, sp, 21*SZVREG
vst vr22, sp, 22*SZVREG
vst vr23, sp, 23*SZVREG
vst vr24, sp, 24*SZVREG
vst vr25, sp, 25*SZVREG
vst vr26, sp, 26*SZVREG
vst vr27, sp, 27*SZVREG
vst vr28, sp, 28*SZVREG
vst vr29, sp, 29*SZVREG
vst vr30, sp, 30*SZVREG
vst vr31, sp, 31*SZVREG
b .Ltga
.Lfloat:
/* Save float registers. */
ADDI sp, sp, -FRAME_SIZE_FLOAT
FREG_S fa0, sp, 0*SZFREG
FREG_S fa1, sp, 1*SZFREG
FREG_S fa2, sp, 2*SZFREG
FREG_S fa3, sp, 3*SZFREG
FREG_S fa4, sp, 4*SZFREG
FREG_S fa5, sp, 5*SZFREG
FREG_S fa6, sp, 6*SZFREG
FREG_S fa7, sp, 7*SZFREG
FREG_S ft0, sp, 8*SZFREG
FREG_S ft1, sp, 9*SZFREG
FREG_S ft2, sp, 10*SZFREG
FREG_S ft3, sp, 11*SZFREG
FREG_S ft4, sp, 12*SZFREG
FREG_S ft5, sp, 13*SZFREG
FREG_S ft6, sp, 14*SZFREG
FREG_S ft7, sp, 15*SZFREG
FREG_S ft8, sp, 16*SZFREG
FREG_S ft9, sp, 17*SZFREG
FREG_S ft10, sp, 18*SZFREG
FREG_S ft11, sp, 19*SZFREG
FREG_S ft12, sp, 20*SZFREG
FREG_S ft13, sp, 21*SZFREG
FREG_S ft14, sp, 22*SZFREG
FREG_S ft15, sp, 23*SZFREG
#define USE_LSX
#define _dl_tlsdesc_dynamic _dl_tlsdesc_dynamic_lsx
#define Lret Lret_lsx
#define Lslow Lslow_lsx
#include "dl-tlsdesc-dynamic.h"
#undef FRAME_SIZE
#undef USE_LSX
#undef _dl_tlsdesc_dynamic
#undef Lret
#undef Lslow
#endif /* #ifndef __loongarch_soft_float */
.Ltga:
bl HIDDEN_JUMPTARGET(__tls_get_addr)
ADDI a0, a0, -TLS_DTV_OFFSET
#ifndef __loongarch_soft_float
la.global t0, _rtld_global_ro
REG_L t0, t0, GLRO_DL_HWCAP_OFFSET
andi t1, t0, HWCAP_LOONGARCH_LASX
beqz t1, .Llsx1
/* Restore 256-bit vector registers. */
xvld xr0, sp, 0*SZXREG
xvld xr1, sp, 1*SZXREG
xvld xr2, sp, 2*SZXREG
xvld xr3, sp, 3*SZXREG
xvld xr4, sp, 4*SZXREG
xvld xr5, sp, 5*SZXREG
xvld xr6, sp, 6*SZXREG
xvld xr7, sp, 7*SZXREG
xvld xr8, sp, 8*SZXREG
xvld xr9, sp, 9*SZXREG
xvld xr10, sp, 10*SZXREG
xvld xr11, sp, 11*SZXREG
xvld xr12, sp, 12*SZXREG
xvld xr13, sp, 13*SZXREG
xvld xr14, sp, 14*SZXREG
xvld xr15, sp, 15*SZXREG
xvld xr16, sp, 16*SZXREG
xvld xr17, sp, 17*SZXREG
xvld xr18, sp, 18*SZXREG
xvld xr19, sp, 19*SZXREG
xvld xr20, sp, 20*SZXREG
xvld xr21, sp, 21*SZXREG
xvld xr22, sp, 22*SZXREG
xvld xr23, sp, 23*SZXREG
xvld xr24, sp, 24*SZXREG
xvld xr25, sp, 25*SZXREG
xvld xr26, sp, 26*SZXREG
xvld xr27, sp, 27*SZXREG
xvld xr28, sp, 28*SZXREG
xvld xr29, sp, 29*SZXREG
xvld xr30, sp, 30*SZXREG
xvld xr31, sp, 31*SZXREG
ADDI sp, sp, FRAME_SIZE_LASX
b .Lfcsr
.Llsx1:
andi t1, t0, HWCAP_LOONGARCH_LSX
beqz t1, .Lfloat1
/* Restore 128-bit vector registers. */
vld vr0, sp, 0*SZVREG
vld vr1, sp, 1*SZVREG
vld vr2, sp, 2*SZVREG
vld vr3, sp, 3*SZVREG
vld vr4, sp, 4*SZVREG
vld vr5, sp, 5*SZVREG
vld vr6, sp, 6*SZVREG
vld vr7, sp, 7*SZVREG
vld vr8, sp, 8*SZVREG
vld vr9, sp, 9*SZVREG
vld vr10, sp, 10*SZVREG
vld vr11, sp, 11*SZVREG
vld vr12, sp, 12*SZVREG
vld vr13, sp, 13*SZVREG
vld vr14, sp, 14*SZVREG
vld vr15, sp, 15*SZVREG
vld vr16, sp, 16*SZVREG
vld vr17, sp, 17*SZVREG
vld vr18, sp, 18*SZVREG
vld vr19, sp, 19*SZVREG
vld vr20, sp, 20*SZVREG
vld vr21, sp, 21*SZVREG
vld vr22, sp, 22*SZVREG
vld vr23, sp, 23*SZVREG
vld vr24, sp, 24*SZVREG
vld vr25, sp, 25*SZVREG
vld vr26, sp, 26*SZVREG
vld vr27, sp, 27*SZVREG
vld vr28, sp, 28*SZVREG
vld vr29, sp, 29*SZVREG
vld vr30, sp, 30*SZVREG
vld vr31, sp, 31*SZVREG
ADDI sp, sp, FRAME_SIZE_LSX
b .Lfcsr
.Lfloat1:
/* Restore float registers. */
FREG_L fa0, sp, 0*SZFREG
FREG_L fa1, sp, 1*SZFREG
FREG_L fa2, sp, 2*SZFREG
FREG_L fa3, sp, 3*SZFREG
FREG_L fa4, sp, 4*SZFREG
FREG_L fa5, sp, 5*SZFREG
FREG_L fa6, sp, 6*SZFREG
FREG_L fa7, sp, 7*SZFREG
FREG_L ft0, sp, 8*SZFREG
FREG_L ft1, sp, 9*SZFREG
FREG_L ft2, sp, 10*SZFREG
FREG_L ft3, sp, 11*SZFREG
FREG_L ft4, sp, 12*SZFREG
FREG_L ft5, sp, 13*SZFREG
FREG_L ft6, sp, 14*SZFREG
FREG_L ft7, sp, 15*SZFREG
FREG_L ft8, sp, 16*SZFREG
FREG_L ft9, sp, 17*SZFREG
FREG_L ft10, sp, 18*SZFREG
FREG_L ft11, sp, 19*SZFREG
FREG_L ft12, sp, 20*SZFREG
FREG_L ft13, sp, 21*SZFREG
FREG_L ft14, sp, 22*SZFREG
FREG_L ft15, sp, 23*SZFREG
ADDI sp, sp, FRAME_SIZE_FLOAT
.Lfcsr:
/* Restore fcsr0 register. */
ld.w t0, sp, FRAME_SIZE + 24
movgr2fcsr fcsr0, t0
#endif /* #ifndef __loongarch_soft_float */
REG_L ra, sp, 0 * SZREG
REG_L a1, sp, 1 * SZREG
REG_L a2, sp, 2 * SZREG
REG_L a3, sp, 3 * SZREG
REG_L a4, sp, 4 * SZREG
REG_L a5, sp, 5 * SZREG
REG_L a6, sp, 6 * SZREG
REG_L a7, sp, 7 * SZREG
REG_L t3, sp, 8 * SZREG
REG_L t4, sp, 9 * SZREG
REG_L t5, sp, 10 * SZREG
REG_L t6, sp, 11 * SZREG
REG_L t7, sp, 12 * SZREG
REG_L t8, sp, 13 * SZREG
ADDI sp, sp, FRAME_SIZE
b .Lret
cfi_endproc
.size _dl_tlsdesc_dynamic, .-_dl_tlsdesc_dynamic
.hidden HIDDEN_JUMPTARGET(__tls_get_addr)
#include "dl-tlsdesc-dynamic.h"
#endif /* #ifdef SHARED */

4
sysdeps/loongarch/dl-tlsdesc.h
View File

@ -43,6 +43,10 @@ extern ptrdiff_t attribute_hidden _dl_tlsdesc_undefweak (struct tlsdesc *);
#ifdef SHARED
extern void *_dl_make_tlsdesc_dynamic (struct link_map *, size_t);
#ifndef __loongarch_soft_float
extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic_lasx (struct tlsdesc *);
extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic_lsx (struct tlsdesc *);
#endif
extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic (struct tlsdesc *);
#endif

9
sysdeps/loongarch/tlsdesc.sym
View File

@ -4,12 +4,6 @@
#include <link.h>
#include <dl-tlsdesc.h>
#define SHARED 1
#include <ldsodefs.h>
#define GLRO_offsetof(name) offsetof (struct rtld_global_ro, _##name)
--
-- Abuse tls.h macros to derive offsets relative to the thread register.
@ -23,6 +17,3 @@ DTV_COUNTER offsetof(dtv_t, counter)
TLS_DTV_UNALLOCATED TLS_DTV_UNALLOCATED
TLS_DTV_OFFSET TLS_DTV_OFFSET
SIZE_OF_TCB sizeof(tcbhead_t)
GLRO_DL_HWCAP_OFFSET GLRO_offsetof (dl_hwcap)
HWCAP_LOONGARCH_LSX HWCAP_LOONGARCH_LSX
HWCAP_LOONGARCH_LASX HWCAP_LOONGARCH_LASX