f1eeabc1fd
This patch addresses some of the issues that I found when looking into the
failures of the scan-assembler-symbol-section tests on Solaris/SPARC.
* The first issue was that on Solaris/SPARC, section names are
double-quoted, both with as and gas:
.section ".text"
When using as, the section flag and type syntax is completely
different from other ELF targets:
.section "my_named_section",#alloc,#execinstr,#progbits
This patch fixes this by stripping double quotes from section names.
* However, this didn't work initially (only the leading quote was
stripped), which is due to David's recent AIX patch: with the
introduction of the new capturing group to handle both .section (ELF)
and .csect (XCOFF), $full_section_directive would never be empty on
ELF and Mach-O targets, so the extraction of the section name didn't
work any longer. This had also broken the Darwin tests completely.
* With working double quote stripping, all but one of the tests PASSed
on Solaris/SPARC, the exception being:
FAIL: gcc.dg/20021029-1.c scan-assembler-symbol-section symbol ar (found __sparc_get_pc_thunk.l7) has section ^\\\\.(const|rodata)|\\\\[RO\\\\] (found .text.__sparc_get_pc_thunk.l7%__sparc_get_pc_thunk.l7)
This is due to the symbol name (ar) not being anchored in the test and
unexpectedly matchting __sparc_get_pc_thunk.l7.
* Next, I ran the tests on Darwin 11 and found two failing tests:
FAIL: gcc.dg/darwin-sections.c scan-assembler-symbol-section symbol ^_a\$ (symbol not found) has section \\\\.data
FAIL: gcc.dg/darwin-sections.c scan-assembler-symbol-section symbol ^_b\$ (symbol not found) has section \\\\.data
is due to Iain's recent "Darwin : Begin rework of zero-fill sections."
patch which emits
.globl _a
.zerofill __DATA,__common,_a,1,0
This is already scanned for, so the two scans above can just go.
The other failing test is
FAIL: g++.dg/gomp/tls-5.C -std=c++14 scan-assembler-symbol-section symbol ^_?_ZGR2ir_\$ (symbol not found) has section ^\\\\.tdata|\\\\[TL\\\\]
FAIL: g++.dg/gomp/tls-5.C -std=c++14 scan-assembler-symbol-section symbol ^_?ir\$ (symbol not found) has section ^\\\\.tbss|\\\\[TL\\\\]
Other scans are guarded by target tls_native, and indeed the assembler
output has
___emutls_v._ZGR2ir_:
___emutls_t._ZGR2ir_:
___emutls_v.ir:
Unfortunately scan-assembler-symbol-section doesn't support selects
yet, which this test implements both for the benefit of this test and
for symmetry.
With those changes, test results are clean now on sparc-sun-solaris2.11,
i386-pc-solaris2.11, i386-apple-darwin11.4.2, and
powerpc-ibm-aix7.2.4.0.
2020-12-03 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
gcc:
* doc/sourcebuild.texi (Commands for use in dg-final, Scan the
assembly output, scan-assembler-symbol-section): Document.
(scan-symbol-section): Document.
gcc/testsuite:
* lib/scanasm.exp (scan-symbol-section): Pass args to
dg-scan-symbol-section.
(scan-assembler-symbol-section): Likewise.
(dg-scan-symbol-section): Handle selector from orig_args.
Get patterns from orig_args.
(parse_section_of_symbols): Fix section_pattern.
Strip double quotes from section name.
* g++.dg/gomp/tls-5.C: Restrict ir, _ZGR2ir_ scans to tls_native.
* gcc.dg/20021029-1.c: Anchor ar symbol.
* gcc.dg/darwin-sections.c: Remove obsolete scans for _a, _b in
.data.
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README
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