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| author | Nick Clifton <nickc@redhat.com> | 2021-09-21 13:21:41 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2021-09-21 13:21:41 +0100 |
| commit | 5226a6a892f922ea672e5775c61776830aaf27b7 (patch) | |
| tree | d8eab33ecd70157a381137136bab18a85a5aa1b2 /ld/ldlang.c | |
| parent | 5335ab68727bbce11c452e3b6bcbfc1ed32f65fd (diff) | |
| download | gdb-5226a6a892f922ea672e5775c61776830aaf27b7.zip gdb-5226a6a892f922ea672e5775c61776830aaf27b7.tar.gz gdb-5226a6a892f922ea672e5775c61776830aaf27b7.tar.bz2 | |
Change the linker's heuristic for computing the entry point for binaries so that shared libraries default to an entry point of 0.
* ldlang.c (lang_end): When computing the entry point, only
try the start address of the entry section when creating an
executable.
* ld.texi (Entry point): Update description of heuristic used to
choose the entry point.
testsuite/ld-alpha/tlspic.rd: Update expected entry point address.
testsuite/ld-arm/tls-gdesc-got.d: Likewise.
testsuite/ld-i386/tlsnopic.rd: Likewise.
testsuite/ld-ia64/tlspic.rd: Likewise.
testsuite/ld-sparc/gotop32.rd: Likewise.
testsuite/ld-sparc/gotop64.rd: Likewise.
testsuite/ld-sparc/tlssunnopic32.rd: Likewise.
testsuite/ld-sparc/tlssunnopic64.rd: Likewise.
testsuite/ld-sparc/tlssunpic32.rd: Likewise.
testsuite/ld-sparc/tlssunpic64.rd: Likewise.
testsuite/ld-tic6x/shlib-1.rd: Likewise.
testsuite/ld-tic6x/shlib-1b.rd: Likewise.
testsuite/ld-tic6x/shlib-1r.rd: Likewise.
testsuite/ld-tic6x/shlib-1rb.rd: Likewise.
testsuite/ld-tic6x/shlib-noindex.rd: Likewise.
testsuite/ld-x86-64/pr14207.d: Likewise.
testsuite/ld-x86-64/tlsdesc.rd: Likewise.
testsuite/ld-x86-64/tlspic.rd: Likewise.
testsuite/ld-x86-64/tlspic2.rd: Likewise.
Diffstat (limited to 'ld/ldlang.c')
| -rw-r--r-- | ld/ldlang.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/ld/ldlang.c b/ld/ldlang.c index 2610be9..bc3f8b7 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -6984,7 +6984,8 @@ lang_end (void) if (!bfd_set_start_address (link_info.output_bfd, val)) einfo (_("%F%P: can't set start address\n")); } - else + /* BZ 2004952: Only use the start of the entry section for executables. */ + else if bfd_link_executable (&link_info) { asection *ts; @@ -7010,6 +7011,13 @@ lang_end (void) entry_symbol.name); } } + else + { + if (warn) + einfo (_("%P: warning: cannot find entry symbol %s;" + " not setting start address\n"), + entry_symbol.name); + } } } |