[gentoo-commits] gentoo-x86 commit in sys-freebsd/freebsd-libexec/files: freebsd-libexec-6.2-dl_iterate_phdr.patch digest-freebsd-libexec-6.2-r2

[Roy Marples (uberlord)]

uberlord    07/09/12 00:15:47

  Added:                freebsd-libexec-6.2-dl_iterate_phdr.patch
                        digest-freebsd-libexec-6.2-r2
  Log:
  Backport dl_iterate_phdr from FreeBSD-7 so that future gcc's dont pull in libgcc_s.so.1
  (Portage version: 2.1.3.7)

Revision  Changes    Path
1.1                  sys-freebsd/freebsd-libexec/files/freebsd-libexec-6.2-dl_iterate_phdr.patch

file : http://sources.gentoo.org/viewcvs.py/gentoo-x86/sys-freebsd/freebsd-libexec/files/freebsd-libexec-6.2-dl_iterate_phdr.patch?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewcvs.py/gentoo-x86/sys-freebsd/freebsd-libexec/files/freebsd-libexec-6.2-dl_iterate_phdr.patch?rev=1.1&content-type=text/plain

Index: freebsd-libexec-6.2-dl_iterate_phdr.patch
===================================================================
--- libexec/rtld-elf/rtld.h	2005/12/18 04:52:34	1.36
+++ libexec/rtld-elf/rtld.h	2005/12/18 19:43:32	1.37
@@ -90,6 +90,11 @@ typedef struct Struct_Needed_Entry {
     unsigned long name;		/* Offset of name in string table */
 } Needed_Entry;
 
+typedef struct Struct_Name_Entry {
+    STAILQ_ENTRY(Struct_Name_Entry) link;
+    char   name[1];
+} Name_Entry;
+
 /* Lock object */
 typedef struct Struct_LockInfo {
     void *context;		/* Client context for creating locks */
@@ -173,6 +193,9 @@ typedef struct Struct_Obj_Entry {
     const char *rpath;		/* Search path specified in object */
     Needed_Entry *needed;	/* Shared objects needed by this one (%) */
 
+    STAILQ_HEAD(, Struct_Name_Entry) names; /* List of names for this object we
+					       know about. */
+
     Elf_Addr init;		/* Initialization function to call */
     Elf_Addr fini;		/* Termination function to call */
 
diff -ur libexec/rtld-elf/map_object.c libexec/rtld-elf/map_object.c
--- libexec/rtld-elf/map_object.c	2005-02-27 12:55:40 +0000
+++ libexec/rtld-elf/map_object.c	2007-09-10 11:29:53 +0100
@@ -61,7 +61,6 @@
     Elf_Phdr **segs;
     int nsegs;
     Elf_Phdr *phdyn;
-    Elf_Phdr *phphdr;
     Elf_Phdr *phinterp;
     Elf_Phdr *phtls;
     caddr_t mapbase;
@@ -79,7 +78,8 @@
     Elf_Addr clear_vaddr;
     caddr_t clear_addr;
     caddr_t clear_page;
-    size_t nclear;
+    Elf_Addr phdr_vaddr;
+    size_t nclear, phsize;
     Elf_Addr bss_vaddr;
     Elf_Addr bss_vlimit;
     caddr_t bss_addr;
@@ -95,9 +95,11 @@
      * in that order.
      */
     phdr = (Elf_Phdr *) ((char *)hdr + hdr->e_phoff);
+    phsize  = hdr->e_phnum * sizeof (phdr[0]);
     phlimit = phdr + hdr->e_phnum;
     nsegs = -1;
-    phdyn = phphdr = phinterp = phtls = NULL;
+    phdyn = phinterp = phtls = NULL;
+    phdr_vaddr = 0;
     segs = alloca(sizeof(segs[0]) * hdr->e_phnum);
     while (phdr < phlimit) {
 	switch (phdr->p_type) {
@@ -108,7 +110,7 @@
 
 	case PT_LOAD:
 	    segs[++nsegs] = phdr;
-    	    if (segs[nsegs]->p_align < PAGE_SIZE) {
+    	    if ((segs[nsegs]->p_align & (PAGE_SIZE - 1)) != 0) {
 		_rtld_error("%s: PT_LOAD segment %d not page-aligned",
 		    path, nsegs);
 		return NULL;
@@ -116,7 +118,8 @@
 	    break;
 
 	case PT_PHDR:
-	    phphdr = phdr;
+	    phdr_vaddr = phdr->p_vaddr;
+	    phsize = phdr->p_memsz;
 	    break;
 
 	case PT_DYNAMIC:
@@ -211,6 +214,11 @@
 		return NULL;
 	    }
 	}
+	if (phdr_vaddr == 0 && data_offset <= hdr->e_phoff &&
+	  (data_vlimit - data_vaddr + data_offset) >=
+	  (hdr->e_phoff + hdr->e_phnum * sizeof (Elf_Phdr))) {
+	    phdr_vaddr = data_vaddr + hdr->e_phoff - data_offset;
+	}
     }
 
     obj = obj_new();
@@ -227,10 +235,19 @@
     obj->dynamic = (const Elf_Dyn *) (obj->relocbase + phdyn->p_vaddr);
     if (hdr->e_entry != 0)
 	obj->entry = (caddr_t) (obj->relocbase + hdr->e_entry);
-    if (phphdr != NULL) {
-	obj->phdr = (const Elf_Phdr *) (obj->relocbase + phphdr->p_vaddr);
-	obj->phsize = phphdr->p_memsz;
+    if (phdr_vaddr != 0) {
+	obj->phdr = (const Elf_Phdr *) (obj->relocbase + phdr_vaddr);
+    } else {
+	obj->phdr = malloc(phsize);
+	if (obj->phdr == NULL) {
+	    obj_free(obj);
+	    _rtld_error("%s: cannot allocate program header", path);
+	     return NULL;
+	}
+	memcpy((char *)obj->phdr, (char *)hdr + hdr->e_phoff, phsize);
+	obj->phdr_alloc = true;
     }
+    obj->phsize = phsize;
     if (phinterp != NULL)
 	obj->interp = (const char *) (obj->relocbase + phinterp->p_vaddr);
     if (phtls != NULL) {
@@ -308,7 +325,6 @@
     if (obj->tls_done) {
 	free_tls_offset(obj);
     }
-    free(obj->path);
     while (obj->needed != NULL) {
 	Needed_Entry *needed = obj->needed;
 	obj->needed = needed->next;
@@ -325,6 +341,7 @@
 	free(elm);
     }
     free(obj->origin_path);
+	free(obj->path);
     free(obj->priv);
     free(obj);
 }
diff -ur libexec/rtld-elf/rtld.c libexec/rtld-elf/rtld.c
--- libexec/rtld-elf/rtld.c	2006-09-02 21:38:13 +0100
+++ libexec/rtld-elf/rtld.c	2007-09-10 11:22:48 +0100
@@ -153,6 +153,7 @@
 static Obj_Entry *obj_main;	/* The main program shared object */
 static Obj_Entry obj_rtld;	/* The dynamic linker shared object */
 static unsigned int obj_count;	/* Number of objects in obj_list */
+static unsigned int obj_loads;	/* Number of objects in obj_list */
 
 static Objlist list_global =	/* Objects dlopened with RTLD_GLOBAL */
   STAILQ_HEAD_INITIALIZER(list_global);
@@ -192,6 +193,9 @@
     (func_ptr_type) &__tls_get_addr,
     (func_ptr_type) &_rtld_allocate_tls,
     (func_ptr_type) &_rtld_free_tls,
+#ifdef _GENTOO_DL_ITERATE_PHDR_
+    (func_ptr_type) &dl_iterate_phdr,
+#endif
     NULL
 };
 
@@ -363,6 +365,7 @@
     *obj_tail = obj_main;
     obj_tail = &obj_main->next;
     obj_count++;
+    obj_loads++;
     /* Make sure we don't call the main program's init and fini functions. */
     obj_main->init = obj_main->fini = (Elf_Addr)NULL;
 
@@ -1287,6 +1290,7 @@
 	*obj_tail = obj;
 	obj_tail = &obj->next;
 	obj_count++;
+	obj_loads++;
 	linkmap_add(obj);	/* for GDB & dlinfo() */
 
 	dbg("  %p .. %p: %s", obj->mapbase,
@@ -1951,6 +1955,39 @@
     return (error);
 }
 
+#ifdef _GENTOO_DL_ITERATE_PHDR
+int
+dl_iterate_phdr(__dl_iterate_hdr_callback callback, void *param)
+{
+    struct dl_phdr_info phdr_info;
+    const Obj_Entry *obj;
+    int error, lockstate;
+
+    lockstate = rlock_acquire(rtld_bind_lock);
+
+    error = 0;
+
+    for (obj = obj_list;  obj != NULL;  obj = obj->next) {
+	phdr_info.dlpi_addr = (Elf_Addr)obj->relocbase;
+	phdr_info.dlpi_name = STAILQ_FIRST(&obj->names) ?
+	    STAILQ_FIRST(&obj->names)->name : obj->path;
+	phdr_info.dlpi_phdr = obj->phdr;
+	phdr_info.dlpi_phnum = obj->phsize / sizeof(obj->phdr[0]);
+	phdr_info.dlpi_tls_modid = obj->tlsindex;
+	phdr_info.dlpi_tls_data = obj->tlsinit;
+	phdr_info.dlpi_adds = obj_loads;
+	phdr_info.dlpi_subs = obj_loads - obj_count;
+
+	if ((error = callback(&phdr_info, sizeof phdr_info, param)) != 0)
+		break;
+
+    }
+    rlock_release(rtld_bind_lock, lockstate);
+
+    return (error);
+}
+#endif
+
 struct fill_search_info_args {
     int		 request;
     unsigned int flags;
diff -ur libexec/rtld-elf/rtld.h libexec/rtld-elf/rtld.h
--- libexec/rtld-elf/rtld.h	2005-12-30 22:13:56 +0000
+++ libexec/rtld-elf/rtld.h	2007-09-10 11:22:22 +0100
@@ -176,15 +176,16 @@
     Elf_Addr init;		/* Initialization function to call */
     Elf_Addr fini;		/* Termination function to call */
 
-    bool mainprog;		/* True if this is the main program */
-    bool rtld;			/* True if this is the dynamic linker */
-    bool textrel;		/* True if there are relocations to text seg */
-    bool symbolic;		/* True if generated with "-Bsymbolic" */
-    bool bind_now;		/* True if all relocations should be made first */
-    bool traced;		/* Already printed in ldd trace output */
-    bool jmpslots_done;		/* Already have relocated the jump slots */
-    bool init_done;		/* Already have added object to init list */
-    bool tls_done;		/* Already allocated offset for static TLS */
+    bool mainprog : 1;		/* True if this is the main program */
+    bool rtld : 1;		/* True if this is the dynamic linker */
+    bool textrel : 1;		/* True if there are relocations to text seg */
+    bool symbolic : 1;		/* True if generated with "-Bsymbolic" */
+    bool bind_now : 1;		/* True if all relocations should be made first */
+    bool traced : 1;		/* Already printed in ldd trace output */
+    bool jmpslots_done : 1;	/* Already have relocated the jump slots */
+    bool init_done : 1;		/* Already have added object to init list */
+    bool tls_done : 1;		/* Already allocated offset for static TLS */
+    bool phdr_alloc : 1;	/* Phdr is allocated and needs to be freed. */
 
     struct link_map linkmap;	/* for GDB and dlinfo() */
     Objlist dldags;		/* Object belongs to these dlopened DAGs (%) */
diff -ur libexec.orig/rtld-elf/rtld_lock.c libexec/rtld-elf/rtld_lock.c
--- libexec.orig/rtld-elf/rtld_lock.c	2004-11-16 20:45:51 +0000
+++ libexec/rtld-elf/rtld_lock.c	2007-09-10 11:22:22 +0100
@@ -54,7 +54,7 @@
 #define RC_INCR		0x2	/* Adjusts count of readers desiring lock */
 
 typedef struct Struct_Lock {
-	volatile int lock;
+	volatile u_int lock;
 	void *base;
 } Lock;
 



1.1                  sys-freebsd/freebsd-libexec/files/digest-freebsd-libexec-6.2-r2

file : http://sources.gentoo.org/viewcvs.py/gentoo-x86/sys-freebsd/freebsd-libexec/files/digest-freebsd-libexec-6.2-r2?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewcvs.py/gentoo-x86/sys-freebsd/freebsd-libexec/files/digest-freebsd-libexec-6.2-r2?rev=1.1&content-type=text/plain

Index: digest-freebsd-libexec-6.2-r2
===================================================================
MD5 be30e9d113cb08eabbc8c2ad7a99b648 freebsd-bin-6.2.tar.bz2 406748
RMD160 d687c8ee46fdcc6ea441367a50aad03b695ee616 freebsd-bin-6.2.tar.bz2 406748
SHA256 202c2024d9a5326ddfd07cae49e2f663118a8ae2f8c79a40c92d513acece3935 freebsd-bin-6.2.tar.bz2 406748
MD5 da39228784512bd5bb4fba41f84d70d5 freebsd-contrib-6.2.tar.bz2 36594160
RMD160 8b89f1ac72ba0054efe1aec2d747ecd33789fde3 freebsd-contrib-6.2.tar.bz2 36594160
SHA256 dbbd9198597e176242806329242d0e12181820a921e5da42aadefaacda1b6277 freebsd-contrib-6.2.tar.bz2 36594160
MD5 a25ab389e5f4ebef301abe071b4c196e freebsd-etc-6.2.tar.bz2 190297
RMD160 1540601566ece689b3fc2935329a2eca62a24314 freebsd-etc-6.2.tar.bz2 190297
SHA256 ff5970db1d7842d2933589203ae0c3907dee427b2ea99de68fce678582bf1804 freebsd-etc-6.2.tar.bz2 190297
MD5 63b8b5552e729be41b98a73665bcd422 freebsd-lib-6.2.tar.bz2 2670374
RMD160 95bbce7862fc7a406b8629914f281d5e01e5ea71 freebsd-lib-6.2.tar.bz2 2670374
SHA256 8e0c909a79a9ed18841f8a5a6e25fc770f76de1a5dc20cbd6bc591bed52d1033 freebsd-lib-6.2.tar.bz2 2670374
MD5 5cad9ad0ed76a85bf9188020ed9be879 freebsd-libexec-6.2.tar.bz2 277231
RMD160 423490cb7c888bfce7edcf473d77868c65c21fe2 freebsd-libexec-6.2.tar.bz2 277231
SHA256 546821f50ff3e69cebd59e1415798233050259de33a4b37acfcbd56b8d92782b freebsd-libexec-6.2.tar.bz2 277231
MD5 c6c8f8a7218d2294e499f80a2c77def3 freebsd-ubin-6.2.tar.bz2 1772844
RMD160 8101bc3e98fa485e31ecf0d5529136ddeb4be5b9 freebsd-ubin-6.2.tar.bz2 1772844
SHA256 446c1a8c7031defda8b184ccf4535cacf651928f324db6ce0aaec3b87b04d9ae freebsd-ubin-6.2.tar.bz2 1772844
MD5 a1596f3407f95b33f927afc0e3eff428 freebsd-usbin-6.2.tar.bz2 2695872
RMD160 ea6104fcfbf6c0be511a80d0475e5a8f716292be freebsd-usbin-6.2.tar.bz2 2695872
SHA256 6195301d39e7bc7fa00f6dec71479b1800ea5c3dc9d3ea375dafe4e71e6485f0 freebsd-usbin-6.2.tar.bz2 2695872



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