From f5e48e94a2f4d4bbd6e5628c7f2afafc6dbcc459 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 7 Mar 2024 17:28:52 -0500 Subject: build: Build mlibc + add distclean target Signed-off-by: Ian Moffett --- lib/mlibc/options/internal/x86/fenv.S | 168 ------------------------ lib/mlibc/options/internal/x86/mlibc_crtbegin.S | 29 ---- lib/mlibc/options/internal/x86/mlibc_crtend.S | 24 ---- lib/mlibc/options/internal/x86/setjmp.S | 53 -------- 4 files changed, 274 deletions(-) delete mode 100644 lib/mlibc/options/internal/x86/fenv.S delete mode 100644 lib/mlibc/options/internal/x86/mlibc_crtbegin.S delete mode 100644 lib/mlibc/options/internal/x86/mlibc_crtend.S delete mode 100644 lib/mlibc/options/internal/x86/setjmp.S (limited to 'lib/mlibc/options/internal/x86') diff --git a/lib/mlibc/options/internal/x86/fenv.S b/lib/mlibc/options/internal/x86/fenv.S deleted file mode 100644 index a46b5fa..0000000 --- a/lib/mlibc/options/internal/x86/fenv.S +++ /dev/null @@ -1,168 +0,0 @@ -# The functions below are taken from musl. - -.hidden __hwcap - -.global feclearexcept -.type feclearexcept,@function -feclearexcept: - mov 4(%esp),%ecx - and $0x3f,%ecx - fnstsw %ax - # consider sse fenv as well if the cpu has XMM capability - call 1f -1: addl $__hwcap-1b,(%esp) - pop %edx - testl $0x02000000,(%edx) - jz 2f - # maintain exceptions in the sse mxcsr, clear x87 exceptions - test %eax,%ecx - jz 1f - fnclex -1: push %edx - stmxcsr (%esp) - pop %edx - and $0x3f,%eax - or %eax,%edx - test %edx,%ecx - jz 1f - not %ecx - and %ecx,%edx - push %edx - ldmxcsr (%esp) - pop %edx -1: xor %eax,%eax - ret - # only do the expensive x87 fenv load/store when needed -2: test %eax,%ecx - jz 1b - not %ecx - and %ecx,%eax - test $0x3f,%eax - jz 1f - fnclex - jmp 1b -1: sub $32,%esp - fnstenv (%esp) - mov %al,4(%esp) - fldenv (%esp) - add $32,%esp - xor %eax,%eax - ret - -.global feraiseexcept -.type feraiseexcept,@function -feraiseexcept: - mov 4(%esp),%eax - and $0x3f,%eax - sub $32,%esp - fnstenv (%esp) - or %al,4(%esp) - fldenv (%esp) - add $32,%esp - xor %eax,%eax - ret - -.global __fesetround -.hidden __fesetround -.type __fesetround,@function -__fesetround: - mov 4(%esp),%ecx - push %eax - xor %eax,%eax - fnstcw (%esp) - andb $0xf3,1(%esp) - or %ch,1(%esp) - fldcw (%esp) - # consider sse fenv as well if the cpu has XMM capability - call 1f -1: addl $__hwcap-1b,(%esp) - pop %edx - testl $0x02000000,(%edx) - jz 1f - stmxcsr (%esp) - shl $3,%ch - andb $0x9f,1(%esp) - or %ch,1(%esp) - ldmxcsr (%esp) -1: pop %ecx - ret - -.global fegetround -.type fegetround,@function -fegetround: - push %eax - fnstcw (%esp) - pop %eax - and $0xc00,%eax - ret - -.global fegetenv -.type fegetenv,@function -fegetenv: - mov 4(%esp),%ecx - xor %eax,%eax - fnstenv (%ecx) - # consider sse fenv as well if the cpu has XMM capability - call 1f -1: addl $__hwcap-1b,(%esp) - pop %edx - testl $0x02000000,(%edx) - jz 1f - push %eax - stmxcsr (%esp) - pop %edx - and $0x3f,%edx - or %edx,4(%ecx) -1: ret - -.global fesetenv -.type fesetenv,@function -fesetenv: - mov 4(%esp),%ecx - xor %eax,%eax - inc %ecx - jz 1f - fldenv -1(%ecx) - movl -1(%ecx),%ecx - jmp 2f -1: push %eax - push %eax - push %eax - push %eax - pushl $0xffff - push %eax - pushl $0x37f - fldenv (%esp) - add $28,%esp - # consider sse fenv as well if the cpu has XMM capability -2: call 1f -1: addl $__hwcap-1b,(%esp) - pop %edx - testl $0x02000000,(%edx) - jz 1f - # mxcsr := same rounding mode, cleared exceptions, default mask - and $0xc00,%ecx - shl $3,%ecx - or $0x1f80,%ecx - mov %ecx,4(%esp) - ldmxcsr 4(%esp) -1: ret - -.global fetestexcept -.type fetestexcept,@function -fetestexcept: - mov 4(%esp),%ecx - and $0x3f,%ecx - fnstsw %ax - # consider sse fenv as well if the cpu has XMM capability - call 1f -1: addl $__hwcap-1b,(%esp) - pop %edx - testl $0x02000000,(%edx) - jz 1f - stmxcsr 4(%esp) - or 4(%esp),%eax -1: and %ecx,%eax - ret - -.section .note.GNU-stack,"",%progbits diff --git a/lib/mlibc/options/internal/x86/mlibc_crtbegin.S b/lib/mlibc/options/internal/x86/mlibc_crtbegin.S deleted file mode 100644 index d317451..0000000 --- a/lib/mlibc/options/internal/x86/mlibc_crtbegin.S +++ /dev/null @@ -1,29 +0,0 @@ - -.section .data -.hidden __dso_handle -.global __dso_handle -__dso_handle: - .long __dso_handle - -.section .init -.hidden _init -.global _init -_init: - -.section .fini -.hidden _fini -.global _fini -_fini: - -.section .ctors -.hidden __CTOR_LIST__ -.global __CTOR_LIST__ -__CTOR_LIST__: - -.section .dtors -.hidden __DTOR_LIST__ -.global __DTOR_LIST__ -__DTOR_LIST__: - -.section .note.GNU-stack,"",%progbits - diff --git a/lib/mlibc/options/internal/x86/mlibc_crtend.S b/lib/mlibc/options/internal/x86/mlibc_crtend.S deleted file mode 100644 index e9d9136..0000000 --- a/lib/mlibc/options/internal/x86/mlibc_crtend.S +++ /dev/null @@ -1,24 +0,0 @@ - -.hidden __mlibc_do_ctors -.hidden __mlibc_do_dtors - -.section .init - call __mlibc_do_ctors - ret - -.section .fini - call __mlibc_do_dtors - ret - -.section .ctors -.hidden __CTOR_END__ -.global __CTOR_END__ -__CTOR_END__: - -.section .dtors -.hidden __DTOR_END__ -.global __DTOR_END__ -__DTOR_END__: - -.section .note.GNU-stack,"",%progbits - diff --git a/lib/mlibc/options/internal/x86/setjmp.S b/lib/mlibc/options/internal/x86/setjmp.S deleted file mode 100644 index fa6644c..0000000 --- a/lib/mlibc/options/internal/x86/setjmp.S +++ /dev/null @@ -1,53 +0,0 @@ - -.type __setjmp, "function" -__setjmp: - mov 4(%esp), %eax # Save argument (buffer) in edi - mov %ebx, 0x00(%eax) - mov %ebp, 0x04(%eax) - mov %esi, 0x08(%eax) - mov %edi, 0x0c(%eax) - - lea 4(%esp), %ecx # esp before return eip is pushed - mov %ecx, 0x10(%eax) - mov (%esp), %ecx # Return eip - mov %ecx, 0x14(%eax) - - test %edx, %edx - jnz 1f - xor %eax, %eax - ret - -1: - jmp __sigsetjmp@PLT - -.global setjmp -.type setjmp, "function" -setjmp: - xor %edx, %edx - jmp __setjmp - -.global sigsetjmp -.type sigsetjmp, "function" -sigsetjmp: - mov $1, %edx - jmp __setjmp - -.global longjmp -.type longjmp, "function" -longjmp: - mov 4(%esp), %ecx - mov 0x00(%ecx), %ebx - mov 0x04(%ecx), %ebp - mov 0x08(%ecx), %esi - mov 0x0c(%ecx), %edi - - mov 8(%esp), %eax - test %eax, %eax - jnz 1f - inc %eax -1: - mov 0x10(%ecx), %esp - jmp *0x14(%ecx) - -.section .note.GNU-stack,"",%progbits - -- cgit v1.2.3