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/****************************************************************/
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/* mdso: midipix dso scavenger */
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/* Copyright (C) 2015--2021 SysDeer Technologies, LLC */
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/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */
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/****************************************************************/
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#include <stdint.h>
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#include <stdio.h>
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#include <mdso/mdso.h>
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#include <mdso/mdso_specs.h>
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#include "mdso_dprintf_impl.h"
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#include "mdso_errinfo_impl.h"
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static const char * const asm_lines[] = {
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"\t.section " MDSO_STRS_SECTION "$%s,\"r0\"\n\n",
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".symstr_%s:\n",
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"\t.ascii\t\"%s\\0\"\n"
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"\t.linkonce discard\n\n",
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"\t.section " MDSO_SYMS_SECTION "$%s,\"r\"\n",
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0
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};
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int mdso_asmgen_symentry(
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const struct mdso_driver_ctx * dctx,
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const char * sym,
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int fdout)
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{
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const char * const * line;
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const char * alignstr;
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const char * rvapad;
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const char * uscore;
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if (mdso_dprintf(fdout,"\t.file \".%s_symentry.s\"\n",sym) < 0)
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return MDSO_FILE_ERROR(dctx);
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if (dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR) {
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alignstr = "\t.balign 16\n\n";
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rvapad = "\t.long 0\n";
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uscore = "";
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} else {
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alignstr = "\t.balign 8\n\n";
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rvapad = "";
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uscore = "_";
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}
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for (line=asm_lines; *line; line++)
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if ((mdso_dprintf(fdout,*line,sym)) < 0)
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return MDSO_FILE_ERROR(dctx);
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if (mdso_dprintf(fdout,"\t.globl __imp_%s%s\n",uscore,sym) < 0)
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return MDSO_FILE_ERROR(dctx);
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if (mdso_dprintf(fdout,alignstr) < 0)
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return MDSO_FILE_ERROR(dctx);
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if ((mdso_dprintf(fdout,"__imp_%s%s:\n",uscore,sym)) < 0)
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return MDSO_FILE_ERROR(dctx);
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if ((mdso_dprintf(fdout,"\t.rva\t.symstr_%s\n%s",
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sym,rvapad)) < 0)
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return MDSO_FILE_ERROR(dctx);
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if ((mdso_dprintf(fdout,"\t.rva\t.dsometa_%s\n%s",
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dctx->cctx->libname,rvapad)) < 0)
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return MDSO_FILE_ERROR(dctx);
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if ((mdso_dprintf(fdout,"\t.linkonce discard\n")) < 0)
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return MDSO_FILE_ERROR(dctx);
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return 0;
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}
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