* [binutils-gdb] gas: correct ignoring of C-style number suffixes
@ 2023-11-03 12:33 Jan Beulich
0 siblings, 0 replies; only message in thread
From: Jan Beulich @ 2023-11-03 12:33 UTC (permalink / raw)
To: bfd-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=88bfe6ac8bcbaf1eb0c1e4be02c21a5c048b7335
commit 88bfe6ac8bcbaf1eb0c1e4be02c21a5c048b7335
Author: Jan Beulich <jbeulich@suse.com>
Date: Fri Nov 3 13:33:38 2023 +0100
gas: correct ignoring of C-style number suffixes
First of all the respective original changes didn't deal with just 0
having such a suffix - this needs additional logic outside of
integer_constant(). Further bogus suffixes having more than two L-s
were accepted, while valid suffixes with U following the L(s) weren't.
Finally respective tests were introduced for Sparc only.
Reviewed-by: Neal Frager <neal.frager@amd.com>
Diff:
---
gas/expr.c | 31 +++++++++++++++++---
gas/testsuite/gas/all/const-1.l | 64 +++++++++++++++++++++++++++++++++++++++++
gas/testsuite/gas/all/const-1.s | 20 +++++++++++++
gas/testsuite/gas/all/gas.exp | 5 ++++
4 files changed, 116 insertions(+), 4 deletions(-)
diff --git a/gas/expr.c b/gas/expr.c
index 204cfebc4c7..6b1e1c31e5d 100644
--- a/gas/expr.c
+++ b/gas/expr.c
@@ -538,17 +538,26 @@ integer_constant (int radix, expressionS *expressionP)
#ifndef tc_allow_U_suffix
#define tc_allow_U_suffix 1
#endif
+ bool u_seen = !tc_allow_U_suffix;
/* PR 19910: Look for, and ignore, a U suffix to the number. */
- if (tc_allow_U_suffix && (c == 'U' || c == 'u'))
- c = * input_line_pointer++;
+ if (!u_seen && (c == 'U' || c == 'u'))
+ {
+ c = *input_line_pointer++;
+ u_seen = true;
+ }
#ifndef tc_allow_L_suffix
#define tc_allow_L_suffix 1
#endif
/* PR 20732: Look for, and ignore, a L or LL suffix to the number. */
- if (tc_allow_L_suffix)
- while (c == 'L' || c == 'l')
+ if (tc_allow_L_suffix && (c == 'L' || c == 'l'))
+ {
c = * input_line_pointer++;
+ if (c == 'L' || c == 'l')
+ c = *input_line_pointer++;
+ if (!u_seen && (c == 'U' || c == 'u'))
+ c = *input_line_pointer++;
+ }
if (small)
{
@@ -888,6 +897,19 @@ operand (expressionS *expressionP, enum expr_mode mode)
input_line_pointer++;
goto default_case;
+ case 'l':
+ case 'L':
+ /* Accept an L suffix to the zero. */
+ if (tc_allow_L_suffix)
+ goto numeric;
+ goto default_case;
+
+ case 'u':
+ case 'U':
+ /* Accept a U suffix to the zero. */
+ if (!tc_allow_U_suffix)
+ goto default_case;
+ /* Fall through. */
case '0':
case '1':
case '2':
@@ -896,6 +918,7 @@ operand (expressionS *expressionP, enum expr_mode mode)
case '5':
case '6':
case '7':
+ numeric:
integer_constant ((flag_m68k_mri || NUMBERS_WITH_SUFFIX)
? 0 : 8,
expressionP);
diff --git a/gas/testsuite/gas/all/const-1.l b/gas/testsuite/gas/all/const-1.l
new file mode 100644
index 00000000000..4c1bb58f5a7
--- /dev/null
+++ b/gas/testsuite/gas/all/const-1.l
@@ -0,0 +1,64 @@
+# This should match the output of gas -alm const-1.s.
+.*: Assembler messages:
+.*:5: Error: .*`l'
+.*:18: Info: .*
+.*:6: Error: .*`l'
+.*:18: Info: .*
+.*:7: Error: .*`l'
+.*:18: Info: .*
+.*:8: Error: .*`l'
+.*:18: Info: .*
+.*:5: Error: .*`u'
+.*:19: Info: .*
+.*:6: Error: .*`u'
+.*:19: Info: .*
+.*:7: Error: .*`u'
+.*:19: Info: .*
+.*:8: Error: .*`u'
+.*:19: Info: .*
+.*:5: Error: .*`l'
+.*:20: Info: .*
+.*:6: Error: .*`l'
+.*:20: Info: .*
+.*:7: Error: .*`l'
+.*:20: Info: .*
+.*:8: Error: .*`l'
+.*:20: Info: .*
+.*GAS .*/const-1\.s[ ].*
+#...
+[ ]*[0-9]*[ ]+const u
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0u
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 00u
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0x0u
+[ ]*[0-9]*[ ]+\?\?\?\? 01[ ]+> \.byte 1u
+[ ]*[0-9]*[ ]+const l
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0l
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 00l
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0x0l
+[ ]*[0-9]*[ ]+\?\?\?\? 01[ ]+> \.byte 1l
+[ ]*[0-9]*[ ]+const ul
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0ul
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 00ul
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0x0ul
+[ ]*[0-9]*[ ]+\?\?\?\? 01[ ]+> \.byte 1ul
+[ ]*[0-9]*[ ]+const lu
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0lu
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 00lu
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0x0lu
+[ ]*[0-9]*[ ]+\?\?\?\? 01[ ]+> \.byte 1lu
+[ ]*[0-9]*[ ]+const ll
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0ll
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 00ll
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0x0ll
+[ ]*[0-9]*[ ]+\?\?\?\? 01[ ]+> \.byte 1ll
+[ ]*[0-9]*[ ]+const llu
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0llu
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 00llu
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0x0llu
+[ ]*[0-9]*[ ]+\?\?\?\? 01[ ]+> \.byte 1llu
+[ ]*[0-9]*[ ]+const ull
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0ull
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 00ull
+[ ]*[0-9]*[ ]+\?\?\?\? 00[ ]+> \.byte 0x0ull
+[ ]*[0-9]*[ ]+\?\?\?\? 01[ ]+> \.byte 1ull
+#pass
diff --git a/gas/testsuite/gas/all/const-1.s b/gas/testsuite/gas/all/const-1.s
new file mode 100644
index 00000000000..25b7f3e0b82
--- /dev/null
+++ b/gas/testsuite/gas/all/const-1.s
@@ -0,0 +1,20 @@
+ .data
+data:
+
+ .macro const, sfx
+ .byte 0\sfx
+ .byte 00\sfx
+ .byte 0x0\sfx
+ .byte 1\sfx
+ .endm
+
+ const u
+ const l
+ const ul
+ const lu
+ const ll
+ const llu
+ const ull
+ const lll
+ const ulu
+ const lul
diff --git a/gas/testsuite/gas/all/gas.exp b/gas/testsuite/gas/all/gas.exp
index 007408f03d8..25fe5dd8989 100644
--- a/gas/testsuite/gas/all/gas.exp
+++ b/gas/testsuite/gas/all/gas.exp
@@ -469,6 +469,11 @@ run_list_test cond-2 "-al"
setup_xfail "tic30-*-*"
run_list_test linefile ""
+# Again, .byte does not emit 8 bits on either tic4x or tic54x.
+if { ![istarget "tic4x*-*-*"] && ![istarget "tic54x*-*-*"] } {
+ run_list_test const-1 "-alm"
+}
+
run_list_test macro "-alm"
run_list_test pr20312
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