diff options
| -rw-r--r-- | include/mdso/mdso.h | 1 | ||||
| -rw-r--r-- | project/common.mk | 1 | ||||
| -rw-r--r-- | src/logic/mdso_generate_dsometa.c | 67 |
3 files changed, 69 insertions, 0 deletions
diff --git a/include/mdso/mdso.h b/include/mdso/mdso.h index 6f2796c..6a217a0 100644 --- a/include/mdso/mdso.h +++ b/include/mdso/mdso.h @@ -92,6 +92,7 @@ mdso_api int mdso_output_export_symbols(const struct mdso_unit_ctx *, const str mdso_api uint32_t mdso_crc32_mbstr (const unsigned char * str, size_t * symlen); mdso_api uint64_t mdso_crc64_mbstr (const unsigned char * str, size_t * symlen); mdso_api FILE * mdso_create_output (const struct mdso_driver_ctx *, const char * asmname); +mdso_api int mdso_generate_dsometa (const struct mdso_common_ctx *, FILE * fout); mdso_api int mdso_generate_symentry(const struct mdso_common_ctx *, const char * sym, FILE * fout); mdso_api int mdso_generate_symfn (const char * sym, FILE * fout); diff --git a/project/common.mk b/project/common.mk index 9278e97..ae97c6e 100644 --- a/project/common.mk +++ b/project/common.mk @@ -3,6 +3,7 @@ COMMON_SRCS = \ src/crc/mdso_crc32.c \ src/driver/mdso_driver_ctx.c \ src/driver/mdso_unit_ctx.c \ + src/logic/mdso_generate_dsometa.c \ src/logic/mdso_generate_symentry.c \ src/logic/mdso_generate_symfn.c \ src/logic/mdso_map_input.c \ diff --git a/src/logic/mdso_generate_dsometa.c b/src/logic/mdso_generate_dsometa.c new file mode 100644 index 0000000..80a3b8c --- /dev/null +++ b/src/logic/mdso_generate_dsometa.c @@ -0,0 +1,67 @@ +/****************************************************************/ +/* mdso: midipix dso scavenger */ +/* Copyright (C) 2015 Z. Gilboa */ +/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */ +/****************************************************************/ + +#include <stdint.h> +#include <stdio.h> +#include <mdso/mdso.h> +#include <mdso/mdso_specs.h> + +static const char * const asm_hdr_lines[] = { + "\t.file \"__%s_dso_meta.s\"\n", + + "\t.section " MDSO_META_SECTION ",\"r\"\n", + "\t.globl .__dsometa_%s\n", + 0 +}; + +static const char * const asm_meta_lines[] = { + "\t.long\t0 # priority\n", + "\t.long\t0 # nsyms\n", + "\t.long\t0 # padding\n", + "\t%s\t0 # hashtbl\n", + "\t%s\t0 # symtbl\n", + "\t%s\t0 # fncarg\n", + "\t%s\t0 # fncargarr\n", + "\t%s\t0 # fnr1\n", + "\t%s\t0 # fnr2\n", + 0 +}; + +int mdso_generate_dsometa( + const struct mdso_common_ctx * cctx, + 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_hdr_lines; *line; line++) + if ((fprintf(fout,*line,cctx->libname)) < 0) + return -1; + + if ((fputs(alignstr,fout)) < 0) + return -1; + + if ((fprintf(fout,"\t%s\t%d\t# base\n",ptrsize,0)) < 0) + return -1; + + if ((fprintf(fout,"\t%s\t%d\t# flags\n",".long",cctx->dsoflags)) < 0) + return -1; + + for (line=asm_meta_lines; *line; line++) + if ((fprintf(fout,*line,ptrsize)) < 0) + return -1; + + return 0; +} |