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/****************************************************************/
/* mdso: midipix dso scavenger */
/* Copyright (C) 2015--2024 SysDeer Technologies, LLC */
/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */
/****************************************************************/
#include <stdint.h>
#include <stdio.h>
#include <mdso/mdso.h>
#include <mdso/mdso_specs.h>
#include "mdso_dprintf_impl.h"
#include "mdso_errinfo_impl.h"
static const char * const asm_lines[] = {
"\t.section " MDSO_STRS_SECTION "$%s,\"r0\"\n\n",
".symstr_%s:\n",
"\t.ascii\t\"%s\\0\"\n"
"\t.linkonce discard\n\n",
"\t.section " MDSO_SYMS_SECTION "$%s,\"r\"\n",
0
};
int mdso_asmgen_symentry(
const struct mdso_driver_ctx * dctx,
const char * sym,
int fdout)
{
const char * const * line;
const char * alignstr;
const char * rvapad;
const char * uscore;
if (mdso_dprintf(fdout,"\t.file \".%s_symentry.s\"\n",sym) < 0)
return MDSO_FILE_ERROR(dctx);
if (dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR) {
alignstr = "\t.balign 16\n\n";
rvapad = "\t.long 0\n";
uscore = "";
} else {
alignstr = "\t.balign 8\n\n";
rvapad = "";
uscore = "_";
}
for (line=asm_lines; *line; line++)
if ((mdso_dprintf(fdout,*line,sym)) < 0)
return MDSO_FILE_ERROR(dctx);
if (mdso_dprintf(fdout,"\t.globl __imp_%s%s\n",uscore,sym) < 0)
return MDSO_FILE_ERROR(dctx);
if (mdso_dprintf(fdout,alignstr) < 0)
return MDSO_FILE_ERROR(dctx);
if ((mdso_dprintf(fdout,"__imp_%s%s:\n",uscore,sym)) < 0)
return MDSO_FILE_ERROR(dctx);
if ((mdso_dprintf(fdout,"\t.rva\t.symstr_%s\n%s",
sym,rvapad)) < 0)
return MDSO_FILE_ERROR(dctx);
if ((mdso_dprintf(fdout,"\t.rva\t.dsometa_%s\n%s",
dctx->cctx->libname,rvapad)) < 0)
return MDSO_FILE_ERROR(dctx);
if ((mdso_dprintf(fdout,"\t.linkonce discard\n")) < 0)
return MDSO_FILE_ERROR(dctx);
return 0;
}
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