From efc615e033a4e0e3ed23e62edb3053a80a43b437 Mon Sep 17 00:00:00 2001 From: midipix Date: Tue, 22 Dec 2015 23:26:55 -0500 Subject: mdso_generate_symentry(): initial implementation. --- src/logic/mdso_generate_symentry.c | 60 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/logic/mdso_generate_symentry.c (limited to 'src/logic') diff --git a/src/logic/mdso_generate_symentry.c b/src/logic/mdso_generate_symentry.c new file mode 100644 index 0000000..df55186 --- /dev/null +++ b/src/logic/mdso_generate_symentry.c @@ -0,0 +1,60 @@ +/****************************************************************/ +/* mdso: midipix dso scavenger */ +/* Copyright (C) 2015 Z. Gilboa */ +/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */ +/****************************************************************/ + +#include +#include +#include +#include + +static const char * const asm_lines[] = { + "\t.file \"__%s_sym_entry.s\"\n", + + "\t.section " MDSO_STRS_SECTION ",\"r\"\n", + "\t.globl .__dsostr_%s\n", + "\t.balign 2\n\n", + ".__dsostr_%s:\n", + "\t.ascii\t\"%s\\0\"\n\n" + + "\t.section " MDSO_SYMS_SECTION ",\"r\"\n", + "\t.globl __imp_%s\n", + 0 +}; + +int mdso_generate_symentry( + const struct mdso_common_ctx * cctx, + const char * sym, + FILE * fout) +{ + const char * const * line; + const char * alignstr; + const char * ptrsize; + + if (cctx->drvflags & MDSO_DRIVER_QUAD_PTR) { + alignstr = "\t.balign 16\n\n"; + ptrsize = ".quad"; + } else { + alignstr = "\t.balign 8\n\n"; + ptrsize = ".long"; + } + + for (line=asm_lines; *line; line++) + if ((fprintf(fout,*line,sym)) < 0) + return -1; + + if ((fputs(alignstr,fout)) < 0) + return -1; + + if ((fprintf(fout,"__imp_%s:\n",sym)) < 0) + return -1; + + if ((fprintf(fout,"\t%s\t.__dsostr_%s\n",ptrsize,sym)) < 0) + return -1; + + if ((fprintf(fout,"\t%s\t.__dsometa_%s\n",ptrsize,cctx->libname)) < 0) + return -1; + + return 0; +} -- cgit v1.2.3