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| author | Ulrich Drepper <drepper@redhat.com> | 2003-03-29 19:20:17 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-03-29 19:20:17 +0000 |
| commit | 266227abcba4f70af3a2f4cbc34384ee498a3a50 (patch) | |
| tree | c804c3f252d5bd356c5fd538dacadf4c720e1646 /sysdeps/ia64 | |
| parent | d8592d04fab67a5a553bd9fc5573f234897bc0af (diff) | |
| download | glibc-266227abcba4f70af3a2f4cbc34384ee498a3a50.zip glibc-266227abcba4f70af3a2f4cbc34384ee498a3a50.tar.gz glibc-266227abcba4f70af3a2f4cbc34384ee498a3a50.tar.bz2 | |
Update.
2003-03-27 David Mosberger <davidm@hpl.hp.com>
* sysdeps/ia64/dl-machine.h (RTLD_START): Wrap ".save rp, r0"
directive into empty .prologue region to ensure that call-chain
is terminated even for the first instruction.
* sysdeps/ia64/elf/start.S (_start): Use ".save rp, r0" idiom
to terminate call-chain right from the get-go.
* sysdeps/unix/sysv/linux/ia64/fork.S (fork): Remove unnecessary
stop bit between compare & branch.
Diffstat (limited to 'sysdeps/ia64')
| -rw-r--r-- | sysdeps/ia64/dl-machine.h | 8 | ||||
| -rw-r--r-- | sysdeps/ia64/elf/start.S | 6 |
2 files changed, 10 insertions, 4 deletions
diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h index be09ae8..d3cc0ca 100644 --- a/sysdeps/ia64/dl-machine.h +++ b/sysdeps/ia64/dl-machine.h @@ -301,8 +301,10 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) "_start:\n" \ "0: { .mii\n" \ " .prologue\n" \ -" .save ar.pfs, r32\n" \ " .save rp, r0\n" \ +" .body\n" \ +" .prologue\n" \ +" .save ar.pfs, r32\n" \ " alloc loc0 = ar.pfs, 0, 3, 4, 0\n" \ " .body\n" \ " mov r2 = ip\n" \ @@ -332,8 +334,10 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) " .proc _dl_start_user#\n" \ "_dl_start_user:\n" \ " .prologue\n" \ -" .save ar.pfs, r32\n" \ " .save rp, r0\n" \ +" .body\n" \ +" .prologue\n" \ +" .save ar.pfs, r32\n" \ " .body\n" \ " { .mii\n" \ " /* Save the pointer to the user entry point fptr in loc2. */\n" \ diff --git a/sysdeps/ia64/elf/start.S b/sysdeps/ia64/elf/start.S index a05ddfb..18eaf8e 100644 --- a/sysdeps/ia64/elf/start.S +++ b/sysdeps/ia64/elf/start.S @@ -40,6 +40,9 @@ .type _start,@function _start: .prologue + .save rp, r0 + .body + .prologue { .mlx alloc r2 = ar.pfs,0,0,7,0 movl r3 = FPSR_DEFAULT @@ -76,8 +79,7 @@ _start: { .mmi ld8 out3 = [out3] /* pointer to `init' function descriptor */ ld8 out4 = [out4] /* pointer to `fini' function descriptor */ - .save rp, r4 - mov r4 = r0 /* terminate unwind chain with a NULL return-pointer */ + nop 0 } .body { .mib |