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-rw-r--r--src/object/mdso_objgen_dsometa.c38
-rw-r--r--src/object/mdso_objgen_symentry.c38
-rw-r--r--src/object/mdso_objgen_symfn.c38
3 files changed, 60 insertions, 54 deletions
diff --git a/src/object/mdso_objgen_dsometa.c b/src/object/mdso_objgen_dsometa.c
index dfe8a33..388e296 100644
--- a/src/object/mdso_objgen_dsometa.c
+++ b/src/object/mdso_objgen_dsometa.c
@@ -9,6 +9,7 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/mman.h>
#include <mdso/mdso.h>
#include <mdso/mdso_specs.h>
@@ -32,11 +33,11 @@ struct mdso_dsometa_object {
int mdso_objgen_dsometa(
const struct mdso_driver_ctx * dctx,
- FILE * fout,
struct mdso_object * vobj)
{
struct mdso_dsometa_object * dsometa;
struct pe_raw_coff_symbol * symrec;
+ void * addr;
unsigned char * mark;
struct pe_raw_aux_rec_section * aux;
size_t buflen;
@@ -65,21 +66,25 @@ int mdso_objgen_dsometa(
cstlen = (3 * liblen) + 48;
objlen = sizeof(*dsometa) + cstlen;
- if (vobj && vobj->addr && (vobj->size < objlen))
+ if (vobj->addr && (vobj->size < objlen))
return MDSO_BUFFER_ERROR(dctx);
- if (vobj && !vobj->addr) {
- vobj->size = objlen;
+ if ((addr = vobj->addr)) {
+ (void)0;
+
+ } else {
+ vobj->size = objlen;
vobj->mapstrsnum = 1;
vobj->mapstrslen = 10 + liblen;
- return 0;
- }
- if (vobj)
- dsometa = (struct mdso_dsometa_object *)vobj->addr;
+ if (!vobj->name)
+ return 0;
+
+ else if (mdso_create_object(dctx,vobj) < 0)
+ return MDSO_NESTED_ERROR(dctx);
+ }
- else if (!(dsometa = calloc(1,objlen)))
- return MDSO_SYSTEM_ERROR(dctx);
+ dsometa = (struct mdso_dsometa_object *)vobj->addr;
if (dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR) {
reclen = sizeof(struct mdso_meta_record_m64);
@@ -220,20 +225,17 @@ int mdso_objgen_dsometa(
memcpy(&mark[9],dctx->cctx->libname,liblen);
/* archive symbol map */
- if (vobj && vobj->mapstrs)
+ if (vobj->mapstrs)
memcpy(vobj->mapstrs,mark,9+liblen);
/* .libname */
mark = dsometa->hdr.cfh_machine;
memcpy(&mark[stroff],dctx->cctx->libname,liblen);
- /* tada */
- if (fout)
- if (fwrite(dsometa,objlen,1,fout) == 0)
- return MDSO_FILE_ERROR(dctx);
-
- if (!vobj)
- free(dsometa);
+ /* fs object unmap */
+ if (!addr)
+ munmap(vobj->addr,vobj->size);
+ /* tada */
return 0;
}
diff --git a/src/object/mdso_objgen_symentry.c b/src/object/mdso_objgen_symentry.c
index 47167c7..7ddc14c 100644
--- a/src/object/mdso_objgen_symentry.c
+++ b/src/object/mdso_objgen_symentry.c
@@ -9,6 +9,7 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/mman.h>
#include <mdso/mdso.h>
#include "mdso_object_impl.h"
@@ -32,11 +33,11 @@ struct mdso_symentry_object {
int mdso_objgen_symentry(
const struct mdso_driver_ctx * dctx,
const char * sym,
- FILE * fout,
struct mdso_object * vobj)
{
struct mdso_symentry_object * syment;
struct pe_raw_coff_symbol * symrec;
+ void * addr;
unsigned char * mark;
unsigned char * mapsym;
struct pe_raw_aux_rec_section * aux;
@@ -71,21 +72,25 @@ int mdso_objgen_symentry(
objlen = sizeof(*syment) + cstlen;
uscore = !(dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR);
- if (vobj && vobj->addr && (vobj->size < objlen))
+ if (vobj->addr && (vobj->size < objlen))
return MDSO_BUFFER_ERROR(dctx);
- if (vobj && !vobj->addr) {
- vobj->size = objlen;
+ if ((addr = vobj->addr)) {
+ (void)0;
+
+ } else {
+ vobj->size = objlen;
vobj->mapstrsnum = 1;
vobj->mapstrslen = 7 + uscore + symlen;
- return 0;
- }
- if (vobj)
- syment = (struct mdso_symentry_object *)vobj->addr;
+ if (!vobj->name)
+ return 0;
+
+ else if (mdso_create_object(dctx,vobj) < 0)
+ return MDSO_NESTED_ERROR(dctx);
+ }
- else if (!(syment = calloc(1,objlen)))
- return MDSO_SYSTEM_ERROR(dctx);
+ syment = (struct mdso_symentry_object *)vobj->addr;
if (dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR) {
aattr = PE_IMAGE_SCN_ALIGN_16BYTES;
@@ -238,7 +243,7 @@ int mdso_objgen_symentry(
symrec += 1;
/* archive symbol map */
- if (vobj && vobj->mapstrs)
+ if (vobj->mapstrs)
memcpy(vobj->mapstrs,mapsym,mark-mapsym);
/* coff symbol: .dsometa_libname */
@@ -255,13 +260,10 @@ int mdso_objgen_symentry(
mark = syment->hdr.cfh_machine;
memcpy(&mark[stroff],sym,symlen);
- /* tada */
- if (fout)
- if (fwrite(syment,objlen,1,fout) == 0)
- return MDSO_FILE_ERROR(dctx);
-
- if (!vobj)
- free(syment);
+ /* fs object unmap */
+ if (!addr)
+ munmap(vobj->addr,vobj->size);
+ /* tada */
return 0;
}
diff --git a/src/object/mdso_objgen_symfn.c b/src/object/mdso_objgen_symfn.c
index 47f9280..6f4ac68 100644
--- a/src/object/mdso_objgen_symfn.c
+++ b/src/object/mdso_objgen_symfn.c
@@ -9,6 +9,7 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/mman.h>
#include <mdso/mdso.h>
#include "mdso_object_impl.h"
@@ -46,12 +47,12 @@ struct mdso_symfn_object {
int mdso_objgen_symfn(
const struct mdso_driver_ctx * dctx,
const char * sym,
- FILE * fout,
struct mdso_object * vobj)
{
struct mdso_symfn_object * symfn;
struct pe_raw_coff_symbol * symrec;
const unsigned char * code;
+ void * addr;
unsigned char * mark;
unsigned char * mapsym;
struct pe_raw_aux_rec_section * aux;
@@ -80,21 +81,25 @@ int mdso_objgen_symfn(
objlen = sizeof(*symfn) + cstlen;
uscore = !(dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR);
- if (vobj && vobj->addr && (vobj->size < objlen))
+ if (vobj->addr && (vobj->size < objlen))
return MDSO_BUFFER_ERROR(dctx);
- if (vobj && !vobj->addr) {
- vobj->size = objlen;
+ if ((addr = vobj->addr)) {
+ (void)0;
+
+ } else {
+ vobj->size = objlen;
vobj->mapstrsnum = 1;
vobj->mapstrslen = 1 + uscore + symlen;
- return 0;
- }
- if (vobj)
- symfn = (struct mdso_symfn_object *)vobj->addr;
+ if (!vobj->name)
+ return 0;
+
+ else if (mdso_create_object(dctx,vobj) < 0)
+ return MDSO_NESTED_ERROR(dctx);
+ }
- else if (!(symfn = calloc(1,objlen)))
- return MDSO_SYSTEM_ERROR(dctx);
+ symfn = (struct mdso_symfn_object *)vobj->addr;
if (dctx->cctx->drvflags & MDSO_DRIVER_QUAD_PTR) {
code = jmp_code_amd64;
@@ -206,7 +211,7 @@ int mdso_objgen_symfn(
symrec += 2;
/* archive symbol map */
- if (vobj && vobj->mapstrs)
+ if (vobj->mapstrs)
memcpy(vobj->mapstrs,mapsym,mark-mapsym);
/* coff symbol: __imp_sym */
@@ -227,13 +232,10 @@ int mdso_objgen_symfn(
mark++;
}
- /* tada */
- if (fout)
- if (fwrite(symfn,objlen,1,fout) == 0)
- return MDSO_FILE_ERROR(dctx);
-
- if (!vobj)
- free(symfn);
+ /* fs object unmap */
+ if (!addr)
+ munmap(vobj->addr,vobj->size);
+ /* tada */
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 23:44:15 +0000