From 2c190da52dbfe58d46c8e4d4dcc924fb444e0334 Mon Sep 17 00:00:00 2001 From: midipix Date: Sat, 4 Feb 2017 11:50:08 -0500 Subject: logic: replaced interface: prefix mdso_generate --> mdso_asmgen. --- src/logic/mdso_asmgen_symentry.c | 65 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 src/logic/mdso_asmgen_symentry.c (limited to 'src/logic/mdso_asmgen_symentry.c') diff --git a/src/logic/mdso_asmgen_symentry.c b/src/logic/mdso_asmgen_symentry.c new file mode 100644 index 0000000..7db988a --- /dev/null +++ b/src/logic/mdso_asmgen_symentry.c @@ -0,0 +1,65 @@ +/****************************************************************/ +/* mdso: midipix dso scavenger */ +/* Copyright (C) 2015--2017 Z. Gilboa */ +/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */ +/****************************************************************/ + +#include +#include + +#include +#include +#include "mdso_errinfo_impl.h" + +static const char * const asm_lines[] = { + "\t.section " MDSO_STRS_SECTION ",\"r0\"\n\n", + ".__dsostr_%s:\n", + "\t.ascii\t\"%s\\0\"\n\n" + "\t.section " MDSO_SYMS_SECTION ",\"r\"\n", + 0 +}; + +int mdso_asmgen_symentry( + const struct mdso_driver_ctx * dctx, + const char * sym, + FILE * fout) +{ + const char * const * line; + const char * alignstr; + const char * ptrsize; + const char * uscore; + + if (fprintf(fout,"\t.file \"__%s_sym_entry.s\"\n",sym) < 0) + return MDSO_FILE_ERROR(dctx); + + if (dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR) { + alignstr = "\t.balign 16\n\n"; + ptrsize = ".quad"; + uscore = ""; + } else { + alignstr = "\t.balign 8\n\n"; + ptrsize = ".long"; + uscore = "_"; + } + + for (line=asm_lines; *line; line++) + if ((fprintf(fout,*line,sym)) < 0) + return MDSO_FILE_ERROR(dctx); + + if (fprintf(fout,"\t.globl __imp_%s%s\n",uscore,sym) < 0) + return MDSO_FILE_ERROR(dctx); + + if ((fputs(alignstr,fout)) < 0) + return MDSO_FILE_ERROR(dctx); + + if ((fprintf(fout,"__imp_%s%s:\n",uscore,sym)) < 0) + return MDSO_FILE_ERROR(dctx); + + if ((fprintf(fout,"\t%s\t.__dsostr_%s\n",ptrsize,sym)) < 0) + return MDSO_FILE_ERROR(dctx); + + if ((fprintf(fout,"\t%s\t.__dsometa_%s\n",ptrsize,dctx->cctx->libname)) < 0) + return MDSO_FILE_ERROR(dctx); + + return 0; +} -- cgit v1.2.3