diff options
| author | Vincent Ren-Wei Chen <vincentc@andestech.com> | 2017-01-17 07:31:24 +0100 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2017-01-22 10:06:29 +0100 |
| commit | 6af3332a4cbd1ffbc81f74759ef7c5e1a87d2e10 (patch) | |
| tree | 4deae5f23fd1e2664f21c09dfb57fda799dffd10 /libc/sysdeps/linux/nds32/sysdep.S | |
| parent | 82af21a60bc6e53dd92c1c140f20179d2ae4ad40 (diff) | |
nds32: add NPTL/TLS, *context function, libm changes and code cleanup
This commit includes following features.
1. Support NPTL/TLS
2. Add libm function which is used to handle FP rounding and excpetions
(ex: fclrexcpt,fedisblxcpti,feenablxcpt... )
3. Add *context function for operating user context
(ex: setcontext,getcontext,makecontext... )
4. Change the return flow from signal handler
5. Cleanup of old code
The testsuite only has 2 errors, tst-cpuclock1 and tst-cputimer1,
which are related to timing accuracy. (math and locale tests are disabled)
Signed-off-by: Vincent Ren-Wei Chen <vincentc@andestech.com>
Diffstat (limited to 'libc/sysdeps/linux/nds32/sysdep.S')
| -rw-r--r-- | libc/sysdeps/linux/nds32/sysdep.S | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/libc/sysdeps/linux/nds32/sysdep.S b/libc/sysdeps/linux/nds32/sysdep.S index 4e86a26e0..0ab325f26 100644 --- a/libc/sysdeps/linux/nds32/sysdep.S +++ b/libc/sysdeps/linux/nds32/sysdep.S @@ -26,15 +26,10 @@ .text -.globl C_SYMBOL_NAME(errno) .globl __syscall_error ENTRY (__syscall_error) -#ifdef OLD_ABI - subri $r5, $r5, #0 -#else subri $r0, $r0, #0 -#endif #define __syscall_error __syscall_error_1 @@ -48,56 +43,57 @@ syscall_error: #ifdef PIC /* set GP register */ pushm $gp, $lp -#ifdef __NDS32_N1213_43U1H__ - jal 2f - sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_) - ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+4) - add $gp, $gp, $lp -#else + cfi_adjust_cfa_offset(8) + cfi_rel_offset(gp, 0) + cfi_rel_offset(lp, 4) mfusr $r15, $PC sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_+4) ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+8) add $gp, $gp, $r15 #endif -#endif #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN /* We translate the system's EWOULDBLOCK error into EAGAIN. The GNU C library always defines EWOULDBLOCK==EAGAIN. EWOULDBLOCK_sys is the original number. */ push $t0 + cfi_adjust_cfa_offset(4) li $t0, EWOULDBLOCK_sys bne $r0, $t0, 1f pop $t0 + cfi_adjust_cfa_offset(-4) li $r0, EAGAIN 1: #endif #ifdef _LIBC_REENTRANT push $lp + cfi_adjust_cfa_offset(4) + cfi_rel_offset(lp, 0) push $r0 -#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) -#else - addi $sp, $sp, -24 -#endif + cfi_adjust_cfa_offset(4) + cfi_rel_offset(r0, 0) #ifdef PIC bal C_SYMBOL_NAME(__errno_location@PLT) #else bal C_SYMBOL_NAME(__errno_location) #endif -#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) -#else - addi $sp, $sp, 24 -#endif pop $r1 + cfi_adjust_cfa_offset(-4) + cfi_restore(r1) swi $r1, [$r0] li $r0, -1 pop $lp + cfi_adjust_cfa_offset(-4) + cfi_restore(lp) #ifdef PIC /* restore GP register */ popm $gp, $lp + cfi_adjust_cfa_offset(-8) + cfi_restore(lp) + cfi_restore(gp) #endif 2: ret @@ -115,6 +111,9 @@ syscall_error: /* restore GP register */ popm $gp, $lp + cfi_adjust_cfa_offset(-8) + cfi_restore(lp) + cfi_restore(gp) 2: ret |