* [binutils-gdb/binutils-2_39-branch] elf: Reset alignment for each PT_LOAD segment
@ 2022-09-22 0:08 Alan Modra
0 siblings, 0 replies; only message in thread
From: Alan Modra @ 2022-09-22 0:08 UTC (permalink / raw)
To: bfd-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a98316d5cf970cbc99689797d84c2ea832bcdcbb
commit a98316d5cf970cbc99689797d84c2ea832bcdcbb
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Aug 1 16:02:39 2022 -0700
elf: Reset alignment for each PT_LOAD segment
Reset alignment for each PT_LOAD segment to avoid using alignment from
the previous PT_LOAD segment.
bfd/
PR ld/29435
* elf.c (assign_file_positions_for_load_sections): Reset
alignment for each PT_LOAD segment.
ld/
PR ld/29435
* testsuite/ld-elf/pr29435.d: New file.
* testsuite/ld-elf/pr29435.s: Likewise.
(cherry picked from commit 59f214544c50ec7ebbca285ff2b4949f48671690)
Diff:
---
bfd/elf.c | 7 ++++---
ld/testsuite/ld-elf/pr29435.d | 11 +++++++++++
ld/testsuite/ld-elf/pr29435.s | 6 ++++++
3 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/bfd/elf.c b/bfd/elf.c
index 89484ceb233..8bd572d712e 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -5438,8 +5438,6 @@ assign_file_positions_for_load_sections (bfd *abfd,
Elf_Internal_Phdr *p;
file_ptr off; /* Octets. */
bfd_size_type maxpagesize;
- bfd_size_type p_align;
- bool p_align_p = false;
unsigned int alloc, actual;
unsigned int i, j;
struct elf_segment_map **sorted_seg_map;
@@ -5524,7 +5522,6 @@ assign_file_positions_for_load_sections (bfd *abfd,
qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map),
elf_sort_segments);
- p_align = bed->p_align;
maxpagesize = 1;
if ((abfd->flags & D_PAGED) != 0)
{
@@ -5559,6 +5556,8 @@ assign_file_positions_for_load_sections (bfd *abfd,
asection **secpp;
bfd_vma off_adjust; /* Octets. */
bool no_contents;
+ bfd_size_type p_align;
+ bool p_align_p;
/* An ELF segment (described by Elf_Internal_Phdr) may contain a
number of sections with contents contributing to both p_filesz
@@ -5569,6 +5568,8 @@ assign_file_positions_for_load_sections (bfd *abfd,
p = phdrs + m->idx;
p->p_type = m->p_type;
p->p_flags = m->p_flags;
+ p_align = bed->p_align;
+ p_align_p = false;
if (m->count == 0)
p->p_vaddr = m->p_vaddr_offset * opb;
diff --git a/ld/testsuite/ld-elf/pr29435.d b/ld/testsuite/ld-elf/pr29435.d
new file mode 100644
index 00000000000..4ca4fd086a2
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr29435.d
@@ -0,0 +1,11 @@
+#ld: -shared -z separate-code -z relro
+#xfail: ![check_shared_lib_support]
+#xfail: ![check_relro_support]
+#readelf: -Wl
+
+#failif
+#...
+ +LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ .* 0x8000
+#...
+ +LOAD +0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ .* 0x8000
+#...
diff --git a/ld/testsuite/ld-elf/pr29435.s b/ld/testsuite/ld-elf/pr29435.s
new file mode 100644
index 00000000000..d2d8f265f5e
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr29435.s
@@ -0,0 +1,6 @@
+ .text
+ .balign 0x8000
+ .globl foo
+ .type foo, %function
+foo:
+ .byte 0
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