Overview
| Comment: | add in mechanism to generate syscall tables for x86 linux |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
860229e8ce1a86fe94865aec6da863e3 |
| User & Date: | lexi on 2019-06-27 09:57:30 |
| Other Links: | manifest | tags |
Context
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2019-06-27
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| 12:13 | updates check-in: 21467a6dc9 user: lexi tags: trunk | |
| 09:57 | add in mechanism to generate syscall tables for x86 linux check-in: 860229e8ce user: lexi tags: trunk | |
| 05:52 | updates check-in: f5b7fa5762 user: lexi tags: trunk | |
Changes
Added arch/makefile version [8e0dfa3404].
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calls.x86.lin.32.s: /usr/include/asm/unistd_32.h grep "#define __NR_" $< | sed "s;^#define __NR_;%define sys.;" > $@ calls.x86.lin.64.s: /usr/include/asm/unistd_64.h grep "#define __NR_" $< | sed "s;^#define __NR_;%define sys.;" > $@ |
Modified arch/x86.lin.32.s from [7c5909e17f] to [fed93e863f].
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; vim: ft=nasm %define sys.exit 1 %define sys.fork 2 %define sys.read 3 %define sys.write 4 %define sys.open 5 %define sys.close 6 %define sys.chdir 12 %define sys.reg.n 6 %define sys.reg.0 eax %define sys.reg.1 ebx %define sys.reg.2 ecx %define sys.reg.3 edx %define sys.reg.4 esi %define sys.reg.5 edi %define sys.call int 0x80 ; sysenter is allegedly the ; politically correct option but it does not actually ; appear to work without a whole lot of extra bullshit ; todo: learn vdsos |
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;; abi definition file for x86 linux 32-bit ; vim: ft=nasm ; syscall32 numbers - syscall table must be created first! %include "calls.x86.lin.32.s" ; syscall32 registers %define sys.reg.n 6 %define sys.reg.0 eax %define sys.reg.1 ebx %define sys.reg.2 ecx %define sys.reg.3 edx %define sys.reg.4 esi %define sys.reg.5 edi %macro sys 1-6 %assign i 0 %rep %0 mov sys.reg. %+ i, %1 ; i'm actually shocked this worked %rotate 1 %assign i i+1 %endrep syscall %endmacro %define sys.call int 0x80 ; sysenter is allegedly the ; politically correct option but it does not actually ; appear to work without a whole lot of extra bullshit ; todo: learn vdsos |
Modified arch/x86.lin.64.s from [fcbc285104] to [1f6b1a0933].
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;; abi definition file ;; macros: ;; * sys: syscall64 wrapper ;; * ccall: automatically generate code to call a C function ;; with any number of arguments ; syscall ops %define sys.call syscall ; syscall numbers %define sys.write 1 %define sys.brk 12 %define sys.exit 60 ; register order for syscall convention %define sys.reg.0 rax %define sys.reg.1 rdi %define sys.reg.2 rsi %define sys.reg.3 rdx %define sys.reg.4 r10 %define sys.reg.5 r8 %define sys.reg.6 r9 ................................................................................ %define ccall.reg.1 rsi %define ccall.reg.2 rdx %define ccall.reg.3 rcx %define ccall.reg.4 r8 %define ccall.reg.5 r9 %macro sys 1-8 %assign i 0 %rep %0 mov sys.reg. %+ i, %1 ; i'm actually shocked this worked %rotate 1 %assign i i+1 %endrep syscall |
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;; abi definition file for x86 linux 64-bit ; vim: ft=nasm ; syscall64 numbers - syscall table must be created first! %include "calls.x86.lin.64.s" ; syscall ops %define sys.call syscall ; register order for syscall convention %define sys.reg.n 7 %define sys.reg.0 rax %define sys.reg.1 rdi %define sys.reg.2 rsi %define sys.reg.3 rdx %define sys.reg.4 r10 %define sys.reg.5 r8 %define sys.reg.6 r9 ................................................................................ %define ccall.reg.1 rsi %define ccall.reg.2 rdx %define ccall.reg.3 rcx %define ccall.reg.4 r8 %define ccall.reg.5 r9 %macro sys 1-8 ; syscall64 wrapper, ex. `sys sys.write, 1, msg, msg.len` %assign i 0 %rep %0 mov sys.reg. %+ i, %1 ; i'm actually shocked this worked %rotate 1 %assign i i+1 %endrep syscall |
Modified makefile from [e2aa0ec204] to [0ee3372ddd].
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defs: $(headers) tool: $(binmods:%=%.tool) lists = moddirs modules headers objects makefiles binaries binmods dbg: @echo -e lists: $(foreach var, $(lists), "\\n - \\e[1m$(var)\\e[m = $($(var))") %.obj: %/makefile $(OUT) cd $* && $(MAKE) obj %.tool: %/makefile $(OUT) cd $* && $(MAKE) tool %.dbg: %/makefile $(OUT) cd $* && $(MAKE) dbg $(OUT)/libk.so: mods $(OUT) $(CC) -shared -o $@ $(objects) $(OUT)/libk.a: mods $(OUT) # using `ar c` and ranlib here instead of # `ar cs` in case `ar` isn't the GNU version ar c $@ $(objects) |
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defs: $(headers) tool: $(binmods:%=%.tool) lists = moddirs modules headers objects makefiles binaries binmods dbg: @echo -e lists: $(foreach var, $(lists), "\\n - \\e[1m$(var)\\e[m = $($(var))") %.obj: %/makefile ${TARGET}.calls $(OUT) cd $* && $(MAKE) obj %.tool: %/makefile $(OUT) cd $* && $(MAKE) tool %.dbg: %/makefile $(OUT) cd $* && $(MAKE) dbg %.calls: arch/makefile cd arch && make calls.$*.s $(OUT)/libk.so: mods $(OUT) $(CC) -shared -o $@ $(objects) $(OUT)/libk.a: mods $(OUT) # using `ar c` and ranlib here instead of # `ar cs` in case `ar` isn't the GNU version ar c $@ $(objects) |