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cd888f01a4
To support Intel CET, all indirect branch targets must start with ENDBR32/ENDBR64. Here is a patch to define endbranch and add it to function entries in x86 assembly codes which are indirect branch targets as discovered by running testsuite on Intel CET machine and visual inspection. Verified with $ CC="gcc -Wl,-z,cet-report=error -fcf-protection" CXX="g++ -Wl,-z,cet-report=error -fcf-protection" .../configure x86_64-linux $ make -j8 $ make -j8 check with both nasm and yasm on both CET and non-CET machines. Change-Id: I9822578e7294fb5043a64ab7de5c41de81a7d337 Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
328 lines
8.5 KiB
NASM
328 lines
8.5 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; Copyright(c) 2011-2016 Intel Corporation All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions
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; are met:
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; * Redistributions of source code must retain the above copyright
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; notice, this list of conditions and the following disclaimer.
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; * Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in
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; the documentation and/or other materials provided with the
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; distribution.
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; * Neither the name of Intel Corporation nor the names of its
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; contributors may be used to endorse or promote products derived
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; from this software without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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%include "options.asm"
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%include "lz0a_const.asm"
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%include "data_struct2.asm"
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%include "bitbuf2.asm"
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%include "huffman.asm"
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%include "igzip_compare_types.asm"
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%include "stdmac.asm"
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%include "reg_sizes.asm"
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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%define curr_data rax
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%define tmp1 rax
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%define f_index rbx
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%define code rbx
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%define tmp4 rbx
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%define tmp5 rbx
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%define tmp6 rbx
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%define tmp2 rcx
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%define hash rcx
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%define tmp3 rdx
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%define stream rsi
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%define f_i rdi
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%define code_len2 rbp
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%define hmask1 rbp
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%define m_out_buf r8
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%define level_buf r9
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%define dist r10
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%define hmask2 r10
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%define code2 r12
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%define f_end_i r12
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%define file_start r13
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%define len r14
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%define hufftables r15
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%define hash_table level_buf + _hash8k_hash_table
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%define lit_len_hist level_buf + _hist_lit_len
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%define dist_hist level_buf + _hist_dist
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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f_end_i_mem_offset equ 0 ; local variable (8 bytes)
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m_out_end equ 8
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m_out_start equ 16
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dist_mask_offset equ 24
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hash_mask_offset equ 32
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stack_size equ 5*8
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%xdefine METHOD hash_hist
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[bits 64]
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default rel
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section .text
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; void isal_deflate_icf_finish ( isal_zstream *stream )
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; arg 1: rcx: addr of stream
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global isal_deflate_icf_finish_ %+ METHOD %+ _01
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isal_deflate_icf_finish_ %+ METHOD %+ _01:
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endbranch
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PUSH_ALL rbx, rsi, rdi, rbp, r12, r13, r14, r15
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sub rsp, stack_size
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%ifidn __OUTPUT_FORMAT__, win64
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mov stream, rcx
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%else
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mov stream, rdi
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%endif
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; state->bitbuf.set_buf(stream->next_out, stream->avail_out);
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mov tmp2 %+ d, dword [stream + _internal_state_dist_mask]
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mov tmp3 %+ d, dword [stream + _internal_state_hash_mask]
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mov level_buf, [stream + _level_buf]
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mov m_out_buf, [level_buf + _icf_buf_next]
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mov [rsp + m_out_start], m_out_buf
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mov tmp1, [level_buf + _icf_buf_avail_out]
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add tmp1, m_out_buf
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sub tmp1, 4
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mov [rsp + dist_mask_offset], tmp2
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mov [rsp + hash_mask_offset], tmp3
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mov [rsp + m_out_end], tmp1
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mov hufftables, [stream + _hufftables]
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mov file_start, [stream + _next_in]
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mov f_i %+ d, dword [stream + _total_in]
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sub file_start, f_i
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mov f_end_i %+ d, dword [stream + _avail_in]
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add f_end_i, f_i
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sub f_end_i, LAST_BYTES_COUNT
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mov [rsp + f_end_i_mem_offset], f_end_i
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; for (f_i = f_start_i; f_i < f_end_i; f_i++) {
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cmp f_i, f_end_i
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jge .end_loop_2
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mov curr_data %+ d, [file_start + f_i]
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cmp byte [stream + _internal_state_has_hist], IGZIP_NO_HIST
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jne .skip_write_first_byte
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cmp m_out_buf, [rsp + m_out_end]
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ja .end_loop_2
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mov hmask1 %+ d, [rsp + hash_mask_offset]
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compute_hash hash, curr_data
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and hash %+ d, hmask1 %+ d
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mov [hash_table + 2 * hash], f_i %+ w
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mov byte [stream + _internal_state_has_hist], IGZIP_HIST
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jmp .encode_literal
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.skip_write_first_byte:
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.loop2:
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mov tmp3 %+ d, [rsp + dist_mask_offset]
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mov hmask1 %+ d, [rsp + hash_mask_offset]
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; if (state->bitbuf.is_full()) {
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cmp m_out_buf, [rsp + m_out_end]
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ja .end_loop_2
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; hash = compute_hash(state->file_start + f_i) & hash_mask;
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mov curr_data %+ d, [file_start + f_i]
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compute_hash hash, curr_data
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and hash %+ d, hmask1 %+ d
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; f_index = state->head[hash];
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movzx f_index %+ d, word [hash_table + 2 * hash]
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; state->head[hash] = (uint16_t) f_i;
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mov [hash_table + 2 * hash], f_i %+ w
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; dist = f_i - f_index; // mod 64k
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mov dist %+ d, f_i %+ d
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sub dist %+ d, f_index %+ d
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and dist %+ d, 0xFFFF
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; if ((dist-1) <= (D-1)) {
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mov tmp1 %+ d, dist %+ d
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sub tmp1 %+ d, 1
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cmp tmp1 %+ d, tmp3 %+ d
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jae .encode_literal
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; len = f_end_i - f_i;
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mov tmp4, [rsp + f_end_i_mem_offset]
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sub tmp4, f_i
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add tmp4, LAST_BYTES_COUNT
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; if (len > 258) len = 258;
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cmp tmp4, 258
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cmovg tmp4, [c258]
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; len = compare(state->file_start + f_i,
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; state->file_start + f_i - dist, len);
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lea tmp1, [file_start + f_i]
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mov tmp2, tmp1
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sub tmp2, dist
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compare tmp4, tmp1, tmp2, len, tmp3
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; if (len >= SHORTEST_MATCH) {
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cmp len, SHORTEST_MATCH
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jb .encode_literal
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;; encode as dist/len
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; get_dist_code(dist, &code2, &code_len2);
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dec dist
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get_dist_icf_code dist, code2, tmp3 ;; clobbers dist, rcx
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;; get_len_code
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lea code, [len + 254]
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mov hmask2 %+ d, [rsp + hash_mask_offset]
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or code2, code
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inc dword [lit_len_hist + HIST_ELEM_SIZE*code]
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; for (k = f_i+1, f_i += len-1; k <= f_i; k++) {
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lea tmp3, [f_i + 1] ; tmp3 <= k
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add f_i, len
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cmp f_i, [rsp + f_end_i_mem_offset]
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jae .skip_hash_update
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; only update hash twice
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; hash = compute_hash(state->file_start + k) & hash_mask;
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mov tmp6 %+ d, dword [file_start + tmp3]
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compute_hash hash, tmp6
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and hash %+ d, hmask2 %+ d
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; state->head[hash] = k;
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mov [hash_table + 2 * hash], tmp3 %+ w
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add tmp3, 1
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; hash = compute_hash(state->file_start + k) & hash_mask;
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mov tmp6 %+ d, dword [file_start + tmp3]
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compute_hash hash, tmp6
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and hash %+ d, hmask2 %+ d
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; state->head[hash] = k;
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mov [hash_table + 2 * hash], tmp3 %+ w
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.skip_hash_update:
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write_dword code2, m_out_buf
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shr code2, DIST_OFFSET
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and code2, 0x1F
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inc dword [dist_hist + HIST_ELEM_SIZE*code2]
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; continue
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cmp f_i, [rsp + f_end_i_mem_offset]
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jl .loop2
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jmp .end_loop_2
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.encode_literal:
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; get_lit_code(state->file_start[f_i], &code2, &code_len2);
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movzx tmp5, byte [file_start + f_i]
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inc dword [lit_len_hist + HIST_ELEM_SIZE*tmp5]
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or tmp5, LIT
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write_dword tmp5, m_out_buf
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; continue
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add f_i, 1
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cmp f_i, [rsp + f_end_i_mem_offset]
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jl .loop2
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.end_loop_2:
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mov f_end_i, [rsp + f_end_i_mem_offset]
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add f_end_i, LAST_BYTES_COUNT
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mov [rsp + f_end_i_mem_offset], f_end_i
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; if ((f_i >= f_end_i) && ! state->bitbuf.is_full()) {
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cmp f_i, f_end_i
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jge .input_end
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xor tmp5, tmp5
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.final_bytes:
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cmp m_out_buf, [rsp + m_out_end]
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ja .out_end
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movzx tmp5, byte [file_start + f_i]
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inc dword [lit_len_hist + HIST_ELEM_SIZE*tmp5]
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or tmp5, LIT
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write_dword tmp5, m_out_buf
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inc f_i
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cmp f_i, [rsp + f_end_i_mem_offset]
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jl .final_bytes
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.input_end:
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cmp word [stream + _end_of_stream], 0
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jne .out_end
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cmp word [stream + _flush], _NO_FLUSH
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jne .out_end
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jmp .end
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.out_end:
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mov dword [stream + _internal_state_state], ZSTATE_CREATE_HDR
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.end:
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;; Update input buffer
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mov f_end_i, [rsp + f_end_i_mem_offset]
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mov [stream + _total_in], f_i %+ d
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mov [stream + _internal_state_block_end], f_i %+ d
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add file_start, f_i
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mov [stream + _next_in], file_start
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sub f_end_i, f_i
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mov [stream + _avail_in], f_end_i %+ d
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;; Update output buffer
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mov [level_buf + _icf_buf_next], m_out_buf
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; len = state->bitbuf.buffer_used();
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sub m_out_buf, [rsp + m_out_start]
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; stream->avail_out -= len;
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sub [level_buf + _icf_buf_avail_out], m_out_buf
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add rsp, stack_size
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POP_ALL
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ret
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section .data
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align 4
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c258: dq 258
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