https://sourceware.org/bugzilla/show_bug.cgi?id=28372
Bug ID: 28372
Summary: [RISCV] wrong attribute of version number generated
for p extension
Product: binutils
Version: 2.38 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: cooper.qu at linux dot alibaba.com
Target Milestone: ---
A simple assemble file a.s written as following:
nop
When execute './gas/as-new -march=rv64imacp9p3 a.s -o a.o',
then './binutils/readelf -A a.o'. The output is:
Attribute Section: riscv
File Attributes
Tag_RISCV_arch: "rv64i2p0_m2p0_a2p0_c9p3"
The 'p9p3' is supposed to specify the 0.9.3 p-ext, but the version number
points to c extension.
Then I execute './gas/as-new -march=rv64imacpp9p3 a.s -o a.o &&
./binutils/readelf -A a.o'. The output is:
Attribute Section: riscv
File Attributes
Tag_RISCV_arch: "rv64i2p0_m2p0_a2p0_c0p0_p9p3"
The p-ext version is in line with expectations, but the c version becomes 0p0.
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