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comparison portasm/portasm-x64.S @ 166:d5705f226298

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- added portasm support for adding .section .note.GNU-stack "hints" marking generated .o files from assembly files as not needing an executable stack * needed to be done manually in assembly files, in contrast to C translation units where gcc adds such hints automatically * this is for security, and better/easier integration of dyncall into other projects and builds, as dyncall doesn't need an executable stack * thanks to Thorsten Behrens for bringing this up to our intention and providing a first analysis * currently only done on Linux, but will be added across other platforms (where applicable) after some testing
author cslag
date Thu, 05 Jan 2017 11:07:29 +0100
parents 572aff021627
children 2bce7629f541
comparison
equal deleted inserted replaced
165:572aff021627 166:d5705f226298
67 # define SET(K,V) K = V 67 # define SET(K,V) K = V
68 # define JE(X) je X 68 # define JE(X) je X
69 # define JNE(X) jne X 69 # define JNE(X) jne X
70 # define CMP(A,B) cmp B,A 70 # define CMP(A,B) cmp B,A
71 # define LOCAL(X) X 71 # define LOCAL(X) X
72 /* @@@ check if masm support wanted/needed */
73 # define SECTION_NOTE_NXSTACK
72 #else 74 #else
73 /* GNU/SunPro Assembler AT&T Syntax */ 75 /* GNU/SunPro Assembler AT&T Syntax */
74 .text 76 .text
75 # define BEGIN_ASM 77 # define BEGIN_ASM
76 # define END_ASM 78 # define END_ASM
150 # define JNE(X) jne X 152 # define JNE(X) jne X
151 # define FLDS(X) flds X 153 # define FLDS(X) flds X
152 # define FLDL(X) fldl X 154 # define FLDL(X) fldl X
153 # define SET(K,V) .set K,V 155 # define SET(K,V) .set K,V
154 # define LOCAL(X) .X 156 # define LOCAL(X) .X
157 /* @@@ extend following to probably *all* ELF targets - needs testing, though */
158 # if defined(OS_Linux)
159 # define SECTION_NOTE_NXSTACK .section .note.GNU-stack,"",@progbits
160 # else
161 # define SECTION_NOTE_NXSTACK
162 # endif
155 #endif 163 #endif
156 164