search for: cfi_endproc

...e unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 + +; test1a: array of [16 x i8] +; no safestack attribute +; Requires no protector. +define void @test1a(i8* %a) nounwind uwtable { +entry: +; LINUX-I386: test1a: +; LINUX-I386-NOT: movl __llvm__unsafe_stack_ptr +; LINUX-I386: .cfi_endproc + +; LINUX-X64: test1a: +; LINUX-X64-NOT: movq %fs:640 +; LINUX-X64: .cfi_endproc + +; DARWIN-X64: test1a: +; DARWIN-X64-NOT: movq ___llvm__unsafe_stack_ptr +; DARWIN-X64: .cfi_endproc + %a.addr = alloca i8*, align 8 + %buf = alloca [16 x i8], align 16 + store i8* %a, i8** %a.addr, align 8 + %a...

...CFI_RESTORE_STATE ldt_ss: @@ -415,11 +415,11 @@ ldt_ss: TRACE_IRQS_IRET RESTORE_REGS lss 20+4(%esp), %esp # switch to 16bit stack -1: INTERRUPT_RETURN -.section __ex_table,"a" +1: iret +.pushsection __ex_table,"a" .align 4 .long 1b,iret_exc -.previous +.popsection CFI_ENDPROC = # perform work that needs to be done immediately before resumption @@ -525,14 +525,14 @@ syscall_badsys: je 28f; \ 27: popl %eax; \ CFI_ADJUST_CFA_OFFSET -4; \ -.section .fixup,"ax"; \ +.pushsection .fixup,"ax"; \ 28: movl $__KERNEL_DS, %eax; \ movl %eax, %ds; \...

...CFI_RESTORE_STATE ldt_ss: @@ -415,11 +415,11 @@ ldt_ss: TRACE_IRQS_IRET RESTORE_REGS lss 20+4(%esp), %esp # switch to 16bit stack -1: INTERRUPT_RETURN -.section __ex_table,"a" +1: iret +.pushsection __ex_table,"a" .align 4 .long 1b,iret_exc -.previous +.popsection CFI_ENDPROC = # perform work that needs to be done immediately before resumption @@ -525,14 +525,14 @@ syscall_badsys: je 28f; \ 27: popl %eax; \ CFI_ADJUST_CFA_OFFSET -4; \ -.section .fixup,"ax"; \ +.pushsection .fixup,"ax"; \ 28: movl $__KERNEL_DS, %eax; \ movl %eax, %ds; \...

Hi, Compiling a simple function with the 3.0 SVN branch llc produces .s output containing cfi_startproc, cfi_endproc, cfi_def_cfa_offset that gcc refuses to compile (OS X 10.7 on X86-64) with the following error: test.s:6:Unknown pseudo-op: .cfi_startproc test.s:10:Unknown pseudo-op: .cfi_def_cfa_offset test.s:10:Rest of line ignored. 1st junk character valued 51 (3). test.s:38:Unknown pseudo-op: .cfi_endproc T...

...- */ - .pushsection .kprobes.text, "ax" -/* * Return to user mode is not as complex as all this looks, * but we want the default path for a system call return to * go as quickly as possible which is why some of this is @@ -372,10 +368,6 @@ need_resched: END(resume_kernel) #endif CFI_ENDPROC -/* - * End of kprobes section - */ - .popsection /* SYSENTER_RETURN points to after the "sysenter" instruction in the vsyscall page. See vsyscall-sysentry.S, which defines the symbol. */ @@ -495,10 +487,6 @@ sysexit_audit: PTGS_TO_GS_EX ENDPROC(ia32_sysenter_target) -/* - *...

...# %_L1 movaps (%rdi), %xmm0 movaps 16(%rdi), %xmm1 addps (%rsi), %xmm0 addps 16(%rsi), %xmm1 movaps %xmm1, 16(%rdi) movaps %xmm0, (%rdi) ret .Ltmp0: .size _fun1, .Ltmp0-_fun1 .cfi_endproc .section ".note.GNU-stack","", at progbits $ llc -o - -mattr avx avx.ll .file "avx.ll" .text .globl _fun1 .align 16, 0x90 .type _fun1, at function _fun1: # @_fun1...

...obl _vstore .align 4, 0x90 _vstore: ## @vstore .cfi_startproc ## BB#0: ## %entry pushq %rbp Ltmp2: .cfi_def_cfa_offset 16 Ltmp3: .cfi_offset %rbp, -16 movq %rsp, %rbp Ltmp4: .cfi_def_cfa_register %rbp vmovups (%rdi), %ymm0 popq %rbp ret .cfi_endproc ---------------------------------------------------------------- Running llvm-33/bin/llc vstore.ll creates: .section __TEXT,__text,regular,pure_instructions .globl _main .align 4, 0x90 _main: ## @main .cfi_startproc ## BB#0:...

...4/2 [length = 3] .cfi_offset 6, -16 .cfi_def_cfa_register 6 movq %rdi, -8(%rbp) # 2 *movdi_1_rex64/4 [length = 4] cvtsi2sdq -8(%rbp), %xmm0 # 6 *floatdidf2_sse_interunit/2 [length = 6] leave # 24 leave_rex64 [length = 1] .cfi_def_cfa 7, 8 ret # 25 return_internal [length = 1] .cfi_endproc Now I may look into config/i386/i386.md, and look for mentioned *pushdi2_rex64, movdi_1_rex64, floatdidf2_sse_interunit and other patterns and study how they work. How to make the same annotation for clang output assembler code? test: .Leh_func_begin1: pushq %rbp # ??? what insn in X8...

...Unknown pseudo-op: .cfi_adjust_cfa_offset acledit.3BX36l.s:227:Rest of line ignored. 1st junk character valued 52 (4). acledit.3BX36l.s:237:Unknown pseudo-op: .cfi_adjust_cfa_offset acledit.3BX36l.s:237:Rest of line ignored. 1st junk character valued 45 (-). acledit.3BX36l.s:239:Unknown pseudo-op: .cfi_endproc acledit.3BX36l.s:242:Unknown pseudo-op: .cfi_startproc acledit.3BX36l.s:244:Unknown pseudo-op: .cfi_adjust_cfa_offset acledit.3BX36l.s:244:Rest of line ignored. 1st junk character valued 52 (4). acledit.3BX36l.s:254:Unknown pseudo-op: .cfi_adjust_cfa_offset acledit.3BX36l.s:254:Rest of line ignored...

...## <MCOperand Imm:-8> ## <MCOperand Reg:0>> popq %rbp ## <MCInst #2000 POP64r ## <MCOperand Reg:106>> ret ## <MCInst #2227 RET> .cfi_endproc - Ben > > double > test(long long s) > { > return s; > } > > gcc -S -dp -O0 test.c > > test: > .LFB0: > .cfi_startproc > pushq %rbp # 18 *pushdi2_rex64/1 [length = 1] > .cfi_def_cfa_offset 16 > movq %rsp, %rbp # 19 *movdi_1_rex64/2 [leng...

...0x3,.LLSDA1 > pushq %rbx > .cfi_def_cfa_offset 16 > .cfi_offset 3, -16 > movq %rdi, %rbx > call *%rdi > movq %rbx, %rax > popq %rbx > .cfi_def_cfa_offset 8 > jmp *%rax > .cfi_endproc > .LFE1: > .globl __gxx_personality_v0 > .section .gcc_except_table,"a", at progbits > .LLSDA1: > .byte 0xff > .byte 0xff > .byte 0x1 > .uleb128 .LLSDACSE1-.LLSDACSB1 > .LLSDACSB1: > .LLSDACSE1: &g...

...ot;() #0 ret void } and its generated assembly code when IPRA enabled: .section __TEXT,__text,regular,pure_instructions .macosx_version_min 10, 12 .p2align 4, 0x90 _foo: ## @foo .cfi_startproc ## BB#0: ## InlineAsm Start movl %r14d, %r15d ## InlineAsm End retq .cfi_endproc .globl _bar .p2align 4, 0x90 _bar: ## @bar .cfi_startproc ## BB#0: pushq %r15 Ltmp0: .cfi_def_cfa_offset 16 pushq %rbx Ltmp1: .cfi_def_cfa_offset 24 pushq %rax Ltmp2: .cfi_def_cfa_offset 32 Ltmp3: .cfi_offset %rbx, -24 Ltmp4: .cfi_offset %r15, -16 ## InlineAsm Sta...

...movl %esp, %ebp .cfi_def_cfa_register %ebp pushl %esi .cfi_offset %esi, -12 movb 16(%ebp), %al movb 12(%ebp), %cl movb 8(%ebp), %dl movl _scscx, %esi movb %dl, (%esi) movl _scscx, %edx movb %cl, 1(%edx) movl _scscx, %ecx movb %al, 2(%ecx) xorl %eax, %eax popl %esi popl %ebp retl .cfi_endproc .comm _pp,3,0 .section __DATA,__data .globl _scscx .p2align 3 _scscx: .long _pp Again, the _scscx is loaded three times instead of reusing a register, which is suboptimal. NOW, if I replace the original code by this: int pp[3]; int *scscx = pp; int tst( int i, int j, int k ) { scscx[0]...

Currently the blacklist is maintained by hand in kprobes.c which is separated from the function definition and is hard to catch up the kernel update. To solve this issue, I've tried to implement new NOKPROBE_SYMBOL() macro for making kprobe blacklist at build time. Since the NOKPROBE_SYMBOL() macros can be placed right after the function is defined, it is easy to maintain. At this moment, I

Currently the blacklist is maintained by hand in kprobes.c which is separated from the function definition and is hard to catch up the kernel update. To solve this issue, I've tried to implement new NOKPROBE_SYMBOL() macro for making kprobe blacklist at build time. Since the NOKPROBE_SYMBOL() macros can be placed right after the function is defined, it is easy to maintain. At this moment, I

...sp, %rbp > .Ltmp4: > .cfi_def_cfa_register %rbp > vmovaps (%rdi), %ymm0 > vaddps (%rsi), %ymm0, %ymm0 > vmovaps %ymm0, (%rdi) > popq %rbp > vzeroupper > ret > .Ltmp5: > .size _fun1, .Ltmp5-_fun1 > .cfi_endproc > > > .section ".note.GNU-stack","", at progbits > > > > > I guess your answer is that I did not specify a target triple. However why is > SSE41 automatically detected and AVX is not?

...: Error: no such instruction: `r15,0*8'' arch/xen/x86_64/kernel/entry.S:500: Error: CFI instruction used without previous .cfi_startproc arch/xen/x86_64/kernel/entry.S:500: Error: junk at end of line, first unrecognized character is `-'' arch/xen/x86_64/kernel/entry.S:527: Error: .cfi_endproc without corresponding .cfi_startproc arch/xen/x86_64/kernel/entry.S:804: Error: previous CFI entry not closed (missing .cfi_endproc) make[4]: *** [arch/xen/x86_64/kernel/entry.o] Error 1 make[3]: *** [arch/xen/x86_64/kernel] Error 2 make[3]: Leaving directory `/usr/src/xen-unstable.hg/linux-2.6.1...

...n lw $ra, 60($sp) # 4-byte Folded Reload jr $ra addiu $sp, $sp, 64 $BB0_8: # %CallStackCheckFailBlk lw $25, %call16(__stack_chk_fail)($gp) jalr $25 nop .set at .set macro .set reorder .end _Z5sum_iiz $tmp4: .size _Z5sum_iiz, ($tmp4)-_Z5sum_iiz .cfi_endproc .globl main .align 2 .type main, at function .set nomips16 # @main .ent main main: .cfi_startproc .frame $sp,48,$ra .mask 0x80000000,-4 .fmask 0x00000000,0 .set noreorder .set nomacro .set noat # BB#0: lui $2, %hi(_gp_disp) addiu $2, $2, %lo(_gp_disp) addiu $sp, $sp,...

...s main: .LFB1: .cfi_startproc pushq %rbp .cfi_def_cfa_offset 16 .cfi_offset 6, -16 movq %rsp, %rbp .cfi_def_cfa_register 6 movl $200, -4(%rbp) movl $0, %eax popq %rbp .cfi_def_cfa 7, 8 ret .cfi_endproc is this bug in clang compiler? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20190205/ea40cfba/attachment.html>

...# %entry movl %edi, %eax sarl $2, %eax xorl %edi, %eax movl %eax, %ecx sarl $3, %ecx xorl %eax, %ecx movl %ecx, %edx sarl $4, %edx xorl %ecx, %edx movl %edx, %eax sarl $5, %eax xorl %edx, %eax retq .Ltmp0: .size _Z13test_registeri, .Ltmp0-_Z13test_registeri .cfi_endproc .globl _Z14test_scheduleri .align 16, 0x90 .type _Z14test_scheduleri, at function _Z14test_scheduleri: # @_Z14test_scheduleri .cfi_startproc # BB#0: # %entry movl %edi, %eax shrl $2, %eax andl $15, %eax shrl $3, %edi andl $31, %edi xorl...