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authormidipix <writeonce@midipix.org>2018-06-29 01:00:36 -0400
committermidipix <writeonce@midipix.org>2018-06-29 01:37:44 -0400
commit9706faf3b18a3fe231bff70e6d8acd62aaae99df (patch)
tree4bd85493b914dd8565c36776ec85814009c7532b
parentc178e3616873d4bb6d94d6fb68633497a4df0ef5 (diff)
downloadslibtool-9706faf3b18a3fe231bff70e6d8acd62aaae99df.tar.bz2
slibtool-9706faf3b18a3fe231bff70e6d8acd62aaae99df.tar.xz
execution context: generated wrapper: replaced the stream with a pure fd.
-rw-r--r--include/slibtool/slibtool.h1
-rw-r--r--src/internal/slibtool_driver_impl.h41
-rw-r--r--src/logic/slbt_exec_ctx.c20
-rw-r--r--src/logic/slbt_exec_link.c24
4 files changed, 62 insertions, 24 deletions
diff --git a/include/slibtool/slibtool.h b/include/slibtool/slibtool.h
index 8796383..c01c0e3 100644
--- a/include/slibtool/slibtool.h
+++ b/include/slibtool/slibtool.h
@@ -149,7 +149,6 @@ struct slbt_exec_ctx {
char ** mout[2];
char ** rpath[2];
char ** sentinel;
- FILE * fwrapper;
char * csrc;
int ldirdepth;
char * ldirname;
diff --git a/src/internal/slibtool_driver_impl.h b/src/internal/slibtool_driver_impl.h
index 47c854e..2eb7a14 100644
--- a/src/internal/slibtool_driver_impl.h
+++ b/src/internal/slibtool_driver_impl.h
@@ -99,6 +99,17 @@ struct slbt_driver_ctx_impl {
struct slbt_error_info erribuf[64];
};
+struct slbt_exec_ctx_impl {
+ int argc;
+ char * args;
+ char * shadow;
+ char * dsoprefix;
+ size_t size;
+ struct slbt_exec_ctx ctx;
+ int fdwrapper;
+ char * vbuffer[];
+};
+
static inline struct slbt_driver_ctx_impl * slbt_get_driver_ictx(const struct slbt_driver_ctx * dctx)
{
uintptr_t addr;
@@ -139,4 +150,34 @@ static inline int slbt_driver_fdlog(const struct slbt_driver_ctx * dctx)
return fdctx.fdlog;
}
+static inline struct slbt_exec_ctx_impl * slbt_get_exec_ictx(const struct slbt_exec_ctx * ectx)
+{
+ uintptr_t addr;
+
+ addr = (uintptr_t)ectx - offsetof(struct slbt_exec_ctx_impl,ctx);
+ return (struct slbt_exec_ctx_impl *)addr;
+}
+
+static inline int slbt_exec_get_fdwrapper(const struct slbt_exec_ctx * ectx)
+{
+ struct slbt_exec_ctx_impl * ictx;
+ ictx = slbt_get_exec_ictx(ectx);
+ return ictx->fdwrapper;
+}
+
+static inline void slbt_exec_set_fdwrapper(const struct slbt_exec_ctx * ectx, int fd)
+{
+ struct slbt_exec_ctx_impl * ictx;
+ ictx = slbt_get_exec_ictx(ectx);
+ ictx->fdwrapper = fd;
+}
+
+static inline void slbt_exec_close_fdwrapper(const struct slbt_exec_ctx * ectx)
+{
+ struct slbt_exec_ctx_impl * ictx;
+ ictx = slbt_get_exec_ictx(ectx);
+ close(ictx->fdwrapper);
+ ictx->fdwrapper = (-1);
+}
+
#endif
diff --git a/src/logic/slbt_exec_ctx.c b/src/logic/slbt_exec_ctx.c
index bc89ca4..230dd7f 100644
--- a/src/logic/slbt_exec_ctx.c
+++ b/src/logic/slbt_exec_ctx.c
@@ -10,21 +10,11 @@
#include <string.h>
#include <slibtool/slibtool.h>
+#include "slibtool_driver_impl.h"
#include "slibtool_errinfo_impl.h"
#define SLBT_ARGV_SPARE_PTRS 16
-struct slbt_exec_ctx_impl {
- int argc;
- char * args;
- char * shadow;
- char * dsoprefix;
- size_t size;
- struct slbt_exec_ctx ctx;
- char * vbuffer[];
-};
-
-
static size_t slbt_parse_comma_separated_flags(
const char * str,
int * argc)
@@ -135,7 +125,8 @@ static struct slbt_exec_ctx_impl * slbt_exec_ctx_alloc(
ictx->size = size;
ictx->shadow = shadow;
- ictx->ctx.csrc = csrc;
+ ictx->ctx.csrc = csrc;
+ ictx->fdwrapper = (-1);
return ictx;
}
@@ -470,12 +461,13 @@ static int slbt_free_exec_ctx_impl(
struct slbt_exec_ctx_impl * ictx,
int status)
{
- if (ictx->ctx.fwrapper)
- fclose(ictx->ctx.fwrapper);
+ if (ictx->fdwrapper >= 0)
+ close(ictx->fdwrapper);
free(ictx->args);
free(ictx->shadow);
free (ictx);
+
return status;
}
diff --git a/src/logic/slbt_exec_link.c b/src/logic/slbt_exec_link.c
index 8ad1af3..c9f62e4 100644
--- a/src/logic/slbt_exec_link.c
+++ b/src/logic/slbt_exec_link.c
@@ -15,6 +15,7 @@
#include <slibtool/slibtool.h>
#include "slibtool_spawn_impl.h"
#include "slibtool_mkdir_impl.h"
+#include "slibtool_driver_impl.h"
#include "slibtool_dprintf_impl.h"
#include "slibtool_errinfo_impl.h"
#include "slibtool_mapfile_impl.h"
@@ -242,6 +243,7 @@ static int slbt_exec_link_adjust_argument_vector(
bool flibrary)
{
int fd;
+ int fdwrap;
char ** carg;
char ** aarg;
char * ldir;
@@ -383,10 +385,10 @@ static int slbt_exec_link_adjust_argument_vector(
mark = strrchr(*carg,'/');
*mark = 0;
- if (ectx->fwrapper) {
+ if ((fdwrap = slbt_exec_get_fdwrapper(ectx)) >= 0) {
*slash = 0;
- if (fprintf(ectx->fwrapper,
+ if (slbt_dprintf(fdwrap,
"DL_PATH=\"$DL_PATH$COLON%s/%s\"\n"
"COLON=':'\n\n",
cwd,arg) < 0)
@@ -1259,6 +1261,7 @@ static int slbt_exec_link_create_executable(
struct slbt_exec_ctx * ectx,
const char * exefilename)
{
+ int fdwrap;
char ** parg;
char * base;
char cwd [PATH_MAX];
@@ -1297,18 +1300,22 @@ static int slbt_exec_link_create_executable(
if (dctx->cctx->drvflags & SLBT_DRIVER_NO_UNDEFINED)
*ectx->noundef = "-Wl,--no-undefined";
- /* executable wrapper: header */
- if ((size_t)snprintf(wrapper,sizeof(wrapper),"%s.wrapper.tmp",
+ /* executable wrapper: create */
+ if ((size_t)snprintf(wrapper,sizeof(wrapper),
+ "%s.wrapper.tmp",
dctx->cctx->output)
>= sizeof(wrapper))
return SLBT_BUFFER_ERROR(dctx);
- if (!(ectx->fwrapper = fopen(wrapper,"w")))
+ if ((fdwrap = openat(AT_FDCWD,wrapper,O_RDWR|O_CREAT|O_TRUNC,0644)) < 0)
return SLBT_SYSTEM_ERROR(dctx);
+ slbt_exec_set_fdwrapper(ectx,fdwrap);
+
+ /* executable wrapper: header */
verinfo = slbt_source_version();
- if (fprintf(ectx->fwrapper,
+ if (slbt_dprintf(fdwrap,
"#!/bin/sh\n"
"# libtool compatible executable wrapper\n"
"# Generated by %s (slibtool %d.%d.%d)\n"
@@ -1372,7 +1379,7 @@ static int slbt_exec_link_create_executable(
/* executable wrapper: footer */
fabspath = (exefilename[0] == '/');
- if (fprintf(ectx->fwrapper,
+ if (slbt_dprintf(fdwrap,
"DL_PATH=\"$DL_PATH$LCOLON$%s\"\n\n"
"export %s=$DL_PATH\n\n"
"if [ `basename \"$0\"` = \"%s\" ]; then\n"
@@ -1407,8 +1414,7 @@ static int slbt_exec_link_create_executable(
SLBT_SPAWN_ERROR(dctx));
/* executable wrapper: finalize */
- fclose(ectx->fwrapper);
- ectx->fwrapper = 0;
+ slbt_exec_close_fdwrapper(ectx);
if (slbt_create_symlink(
dctx,ectx,