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gdb and binutils branch master updated. fb0576e98388c6f4585b94684cea8d18c97a91aa
- From: devans at sourceware dot org
- To: gdb-cvs at sourceware dot org
- Date: 28 Aug 2014 18:42:15 -0000
- Subject: gdb and binutils branch master updated. fb0576e98388c6f4585b94684cea8d18c97a91aa
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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=fb0576e98388c6f4585b94684cea8d18c97a91aa
commit fb0576e98388c6f4585b94684cea8d18c97a91aa
Author: Doug Evans <dje@google.com>
Date: Thu Aug 28 11:38:22 2014 -0700
Rewrite {amd64,i386}-pseudo.c to better specify register liveness.
clang was using eax to construct %0 here:
asm ("mov %%eax, 0(%0)\n\t"
"mov %%ebx, 4(%0)\n\t"
"mov %%ecx, 8(%0)\n\t"
"mov %%edx, 12(%0)\n\t"
"mov %%esi, 16(%0)\n\t"
"mov %%edi, 20(%0)\n\t"
: /* no output operands */
: "r" (data)
: "eax", "ebx", "ecx", "edx", "esi", "edi");
which caused amd64-word.exp (and others similarly) to fail.
It's a perfectly legit thing for clang to do given the available data.
The patch fixes this by marking the registers as live from the
time of the preceding breakpoint.
gdb/testsuite/ChangeLog:
* gdb.arch/amd64-pseudo.c (main): Rewrite to better specify when
eax,etc. are live with values set by gdb and thus the compiler can't
use them.
* gdb.arch/i386-pseudo.c (main): Ditto.
-----------------------------------------------------------------------
Summary of changes:
gdb/testsuite/ChangeLog | 7 ++++
gdb/testsuite/gdb.arch/amd64-pseudo.c | 57 +++++++++++++++++++++-----------
gdb/testsuite/gdb.arch/i386-pseudo.c | 18 +++++++++--
3 files changed, 59 insertions(+), 23 deletions(-)
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gdb and binutils